Climate change led to the extinction of woolly mammoths by altering their habitats and food sources.

As the climate warmed, trees and swamp plants replaced mammoth pastures, reducing their food availability.

Climate change occurred too quickly for mammoths to adapt to the changing landscape and food scarcity.

Climate change, not human activity, was the primary cause of mammoth extinction in Siberia.

Some scientists argue that humans may have contributed to the extinction of mammoths, which had previously survived climate change.

The discovery of mammoth bones in a single location suggests that early humans may have hunted and slaughtered woolly mammoths.

The loss of woolly mammoths and other megafauna reduced nutrient cycling in prehistoric ecosystems by nearly 90%.

The extinction of megafauna led to the collapse of predators and the loss of fruit trees that relied on them for seed dispersal.

The loss of giant herbivores likely increased fire activity by accumulating dry grass, leaves, and wood.

South America, North America, Australia, and Africa lost 83%, 68%, 44%, and 22% of their largest grazing species, respectively.

The loss of megafauna 50,000 years ago has led to a dramatic increase in grassland fires worldwide.

Experts say herbivores must be considered when predicting global fire activity.

Climate change and human hunting may have contributed to the woolly mammoths' extinction, with the exact role of each factor still debated.

Studying the extinction of woolly mammoths informs strategies for conserving species in the face of climate change.

The loss of megafauna has had a cascading effect on vegetation and other species, making the world less vibrant and less able to support animal life.

The extinction of large animals has led to less fertile soil due to human practices like farming and fencing.

Without humans, landscapes would have more fertile soil and productive ecosystems.

Climate change led to the extinction of woolly mammoths by altering their habitats and food sources.

Title:

Content: Partners news
The cause of the extinction of mammoths
Scientists have found that mammoths died out due to climate change
Photo: Stanislav Krasilnikov / TASS
An international team of researchers found that the cause of the extinction of mammoths in Siberia was primarily a sharp climate change, not human activity.
The article is published in the journal Nature.
Woolly mammoths became extinct only about four thousand years ago.
They were not only the main source of meat of ancient people – the latter made from their bones the basis for dwellings, from their tusks made harpoons and even musical instruments.
Therefore, there is a widespread theory that the main cause of extinction was humans.
Researchers from the Institute of Earth Sciences of St. Petersburg State University together with colleagues from the UK, Denmark, China, Norway and the United States decided to restore the appearance of the tundrosteppe, which was inhabited by mammoths.
To do this, they using the shotgun method — obtaining from a random massive sample of cloned fragments of the original sequence — analyzed the DNA of ancient plants and animals collected from 535 different places in the Arctic, where the mammoth lived, over 20 years.
They also analyzed the DNA of more than 1,500 modern plants and animals.
Researchers were able to map the distribution of populations of mammoths and other representatives of the megafauna of the tundrosteppe.
They saw that over time their populations and genetic diversity became smaller and smaller — making survival increasingly difficult.
With the end of the Pleistocene about 12 thousand years ago and the accompanying retreat of glaciers and the formation of rivers, lakes and marshes, vegetation has decreased in volume, and it has become insufficient to maintain the previous level of populations.
As the climate warms, trees and swamp plants have taken the place of former mammoth pastures.
“We have shown that climate change, in particular rainfall, has directly led to changes in vegetation.
According to our models, people did not have any influence on them [mammoths], ” said the first author of the work, a researcher at the University of Cambridge Yuchen Wang.
However, the extinction of mammoths was influenced not only by the warming of the climate itself.
“His speed was the last nail in the lid of the coffin – they (megafauna tundrosteppe – approx.
“Tape.ru ”) could not adapt quickly enough, when the landscape radically changed and food was not enough, ” said the head of the scientific group, Professor of Copenhagen and Cambridge universities Eske Willerslev.
Only what is important to you is in the “Tape of the Day ” in Telegram.
Subscribe now

According to most recent research, what is the primary cause of wooly mammoth extinction?

How did climate change affect mammoth' habitat?

food sources disappearing
restricted habitat
pastures becoming swampy
shrank grassland

What are the causes of the wooly mammoth extinction?

What aspects of climate change contributed to the wooly mammoth extinction?

What environmental factors contributed to the wooly mammoth extinction?

As the climate warmed, trees and swamp plants replaced mammoth pastures, reducing their food availability.

According to most recent research, what is the primary cause of wooly mammoth extinction?

How did climate change affect mammoth' habitat?

food sources disappearing
restricted habitat
pastures becoming swampy
shrank grassland

What are the causes of the wooly mammoth extinction?

What aspects of climate change contributed to the wooly mammoth extinction?

What environmental factors contributed to the wooly mammoth extinction?

Climate change occurred too quickly for mammoths to adapt to the changing landscape and food scarcity.

According to most recent research, what is the primary cause of wooly mammoth extinction?

How did climate change affect mammoth' habitat?

food sources disappearing
restricted habitat

What are the causes of the wooly mammoth extinction?

What aspects of climate change contributed to the wooly mammoth extinction?

What environmental factors contributed to the wooly mammoth extinction?

Climate change, not human activity, was the primary cause of mammoth extinction in Siberia.

According to most recent research, what is the primary cause of wooly mammoth extinction?

What are the causes of the wooly mammoth extinction?

What environmental factors contributed to the wooly mammoth extinction?

Some scientists argue that humans may have contributed to the extinction of mammoths, which had previously survived climate change.

Title:

Content: How would the earth be different if modern man did not exist?
The Libyan Observatory Newspaper
LATEST NEWS
The human footprint can be seen across the planet today, from the towering skyscrapers that define our modern capitals to the pyramids and other ancient relics from our past.
Human activity also represents the sprawling open fields of agriculture, the roads that connect everything together.
But what would the world look like if humans didn ’ t exist before?
Some scientists paint a picture of a pure wilderness and an abundance of species, from fashionable to uncommon.
Trevor Worthy, a paleontologist and assistant professor at Flinders University in Australia, told Live Science: “I think it would be a much more vegetative place with a wealth of animals, of great size, spread across all continents except Antarctica. ”
A world without modern humans may also mean that our extinct human relatives, such as Neanderthals, will still exist.
And, of course, they would have changed the scene as well.
Humans shaped the world at the expense of many species, from the dodo (Raphus cucullatus) to the Tasmanian tiger (Thylacinus cynocephalus), which pushed us to extinction through activities such as hunting and habitat destruction.
The rate of extinction on Earth today is more than 100 times what it would have been without humans, according to the most conservative estimates, and has not been higher since the Cretaceous and Paleogene (K-Pg) extinction event that wiped out about 80% of animal species, including non-floating dinosaurs, 66 million years ago.
In other words, humans collided with the planet like an asteroid, and the dust continues to settle as wildlife continues to deteriorate.
“My great-grandfather was able to see herds of thousands of parrots in the landscape, my grandfather saw a hundred flocks, my father saw little and I ’ m lucky if I could see two in the woods, ” said Worthy.
The human-driven decline of nature suggests that Earth would be a more wild place without us, with some lost giants, such as moas, standing out the most.
This group of ostrich-like birds, some of which extend up to 11.8 feet (3.6 m) in New Zealand, evolved over millions of years.
Within 200 years of humans reaching their land 750 years ago, all nine species of moa have disappeared, along with at least 25 other vertebrate species, including the giant Haast eagles (Hieraaetus moorei) that hunted moa, according to Worthy.
The giant moa and the Haast vultures are recent examples of large animals whose eventual extinction is linked to human activities, such as unsustainable hunting and the introduction of invasive species into new habitats.
They are also indicators of what our relationship with large animals might be like elsewhere.
The survival of large animals is crucial to speculate on the existence of a land without humans, as these monsters have a significant impact on the landscape.
– Serengeti System
Soren Furby, senior lecturer in zoology at the University of Gothenburg in Sweden, believes that humans played a key role in the disappearance of many large mammals thousands of years ago.
He led a 2015 study, published in the journal Diversity and Distributions, which suggested that without humans, the Earth would be much like the contemporary Serengeti system, an African ecosystem teeming with life.
In this scenario, extinct animals similar to those found in Serengeti today – including elephants, rhinos and lions – would live across Europe.
For example, instead of African lions (Panthera leo), there are still cave lions (Panthera spelaea), a slightly larger species that lived in Europe until about 12,000 years ago.
Meanwhile, the Americas will be home to relatives of huge elephants and bears, along with unique species, according to Forby.
"In a world without humans, there will be much more diversity than large mammals, and if you see a greater diversity than large mammals, you tend to see a more open habitat," Forby said.
Elephants and other large animals are well identified when finding food, and will not tolerate unnecessary obstacles.
“If you ’ re old enough, it might be easier to knock on a tree and eat fresh leaves on top of it, ” Forby said.
But also, if there are a large number of large mammals, there is a tendency to have fewer wooded plants in the first place, he said.
Large animals, such as elephants, are known as megafauna.
During the last ice age (2.6 million to 11,700 years ago), the world was rich in megafauna, but most of them died at the end of the ice age, or in the thousands of years since.
For example, about 38 genera of large animals went extinct in North America at the end of the last ice age, according to a 2020 study published in the journal Proceedings of the National Academy of Sciences.
Over the past century, scientists have debated whether natural climate changes or human activities, such as overfishing, are the main reason for the decline of these large animals.
A 2021 study published in Nature concluded that climate change ultimately wiped out the woolly mammoths (Mammuthus primigenius) and other Arctic megafauna that survived the end of the ice age.
However, humans hunted mammoths.
Scientists who believe humans may have been the main factor in their extinction, such as Forby, argue that mammoths survived climate change before humans appeared and would probably survive to this day had it not been for the added pressure humans placed on them.
Christopher Dottie, an associate professor and ecologist at Northern Arizona University, is modeling how past and present large animals transport seeds and nutrients through eating and defecating.
His work indicates that the transport of elements such as phosphorus, calcium and magnesium, which are important for life, was reduced by more than 90% through the extinction of large animals.
Dotti hypothesizes that without humans, elements would be evenly distributed across the landscape.
This means more fertile soil, which makes ecosystems more productive.
Humans tend to group elements together through practices such as farming and creating fenced areas, so that these areas become less fertile over time compared to terrestrial systems, according to Dauty.
Greater fertility means that plants can devote their resources to more fruit and flowers, so that the world looks more vibrant and feeds more animals.
While it is difficult to determine how humans and megafauna have influenced climate change for thousands of years with evidence obscured over time, it is much easier to judge our impact on Earth ’ s climate today.
Through global warming, caused by activities such as burning fossil fuels, humans have raised the global average temperature by about 1.8 degrees Fahrenheit (1 degrees Celsius) since the beginning of the 20th century.
Therefore, the Earth would have been at least colder without us.
A 2016 study published in the journal Nature concluded that human-induced warming would delay the next ice age by at least 100,000 years.
And it wasn't due for another 50,000 years, though, even without human delay, so it's unlikely that Earth would be in the middle of another ice age today if we didn't exist.
Humans are inevitable.
Scientists aren ’ t sure why Neanderthals went extinct about 40,000 years ago, but because they mate with Homo sapiens, parts of their DNA are found in some of us.
There were probably multiple causes of Neanderthal death, but we're a prime suspect.
Chris Stringer, a professor and research leader in human origins at the Natural History Museum in London, believes competition for resources was a factor in the disappearance of Neanderthals.
“If we weren ’ t around, if we hadn ’ t come to Europe 45,000 or 50,000 years ago, I think they ’ d probably stay here, ” he told Live Science.
According to Stringer, Neanderthals lived a complex life in Europe, similar to modern humans, but they had difficulty adapting to climate change and were relatively few in number, with low genetic diversity.
This is bad news for any species, as it is a sign of inbreeding and ill health.
Stringer said Neanderthals were probably “already in trouble, and when modern humans got there too, I think that ’ s probably what pushed them to the edge. ”
Scientists are still learning about at least one human lineage that lived around the same time as modern humans and Neanderthals: Denisovans.
This lineage appears to be closer to Neanderthals than modern humans in genes and appearance, but it can be distinguished from Neanderthals with very large molars.
There is evidence of DNA in current humans living in places like New Guinea in Oceania — a finding that suggests Denisovans were in Southeast Asia interacting with ancestors of modern humans who later settled in the East, according to a 2012 study published in the journal Science.
These Denisovan interactions, along with fossil evidence, suggest that they had a larger geographic range than Neanderthals, encompassing a variety of environments and, therefore, arguably, were more adaptive than Neanderthals.
DNA evidence also suggests that Denisovans may have had greater genetic diversity than Neanderthals, according to Stringer.
Stringer said: “There ’ s no reason why Neanderthals or Denisovans shouldn ’ t do it eventually, given enough time. ”
He added that they may have overcome any potential intellectual deficiency, which is not clear to them, through evolution.
So maybe the world won ’ t look completely different after all.
Likewise, they could have made the same mistakes we have made since then.
So, global warming could have been here, but with Neanderthals or Denisovans leading it, not us.
"Who knows?"
Source: Live Science

According to most recent research, what cause of wooly mammoth extinction is not as important as previously believed?

The discovery of mammoth bones in a single location suggests that early humans may have hunted and slaughtered woolly mammoths.

Title:

Content: Woolly Mammoth Bones Unearthed in Austrian Wine Cellar

It wasn’t the first time that ancient artifacts were discovered in one of Kamptal’s wine cellars.

An Austrian winemaker renovating his cellar unearthed a trove of woolly mammoth bones that could expand our understanding of the relationship between humans and the prehistoric beasts.

Andreas Pernerstorfer’s winery is in the notable winemaking and cultural region of Kamptal in northeastern Austria. After stumbling upon the huge bones in the dirt floor, he reported his discovery to Austria’s Federal Monuments Office. The Austrian Archaeological Institute has been excavating the site since March 2024 to a depth of 55 feet below ground and says it’s the first significant paleontology site found in Austria in a century.

The bones are believed to be between 30,000 and 40,000 years old and belonged to at least three woolly mammoths. According to Hannah Parow-Souchon, the paleontologist leading the excavation, the discovery is significant because mammoth bones are rarely found packed together. This could mean they were bunched there by humans, which could indicate they were hunted and slaughtered by humans; the site might be the remains of a Holocene Epoch cookout.

Most archaeologists agree that humans gathered in groups and used spears and other tools to take down woolly mammoths and other megafauna, which would have been immense sources of meat, hides, and bones to use as raw materials for tools. This activity could have contributed to the animals’ extinction

There is some debate whether preying on the massive beasts was a regular practice for Stone Age people, and science is foggy about how a band of simple humans could get the drop on an animal that stood 10 feet tall, weighed as much as six tons, and had fearsome protective tusks. The process would reveal a lot about coordination and planning among Paleolithic people.

Parow-Souchon said in a statement from the Austrian Academy of Sciences that it is possible that humans set a trap for mammoths there. She also said it was the most significant discovery of woolly mammoth remains in more than 100 years; most such sites in Europe have been dug up and hollowed out, with their archaeological value lost over time.

This is not the first such find in Kamptal. About 150 years ago, relics of early human life—including flint artifacts, jewelry fossils, and charcoal—were discovered there in a wine cellar next door.

How did humans contribute to the wooly mammoth extinction?

What are the causes of the wooly mammoth extinction?

The loss of woolly mammoths and other megafauna reduced nutrient cycling in prehistoric ecosystems by nearly 90%.

Title:

Content: Cave lions in Europe and mammoths in the United States.
Scientists have told what the Earth would be without Homo sapiens
The researchers say that in general, the planet could be an exciting place, which would be inhabited by representatives of megafauna.
Scientists believe that without humans, the Earth would be a more wild and fertile place, in which giants such as ostrich moa birds with a height of 3.6 meters still lived.
They lived in New Zealand for millions of years, but disappeared 750 years after their land was invaded by man, writes LiveScience.
The vanished giant moas and eagles of Haast, whose wingspan was 2.6 meters or more, are a small example of how human activity has changed the planet.
The survival of such large animals is crucial in thinking about what the Earth would be like without humans, as such giants have a crucial influence on landscapes.
Senior lecturer in zoology at the University of Gothenburg in Sweden, Seren Forby, says humans have played a crucial role in the extinction of many large mammals.
Forby led the study, published in the journal Diversity and Distributions.
It said that without humans, the Earth would resemble an ecoregion in East Africa, the Serengeti, teeming with life.
In such a scenario, extinct animals, along with elephants, rhinos and lions, would live throughout Europe.
For example, the African lions (Panthera leo) would still be replaced by cave lions (Panthera spelaea), a larger species that lived in Europe about 12,000 years ago.
At the same time, America would be home to larger relatives of elephants and bears, as well as unique species such as the glyptodon – car-sized armadillos and giant sloths.
“In a world without humans, there would be a lot more different species of large mammals, as well as a much more open habitat, ” says Forby.
Elephants or other species of large animals do not tolerate obstacles in their search for food.
In such cases, the territory acquires a less wooded appearance.
The world would be brighter
During the last Pleistocene Ice Age (2.6 million to 11,700 years ago), the Earth was rich in megafauna.
Much of it went extinct after the end of this ice age or millennia later.
A 2021 study from the journal Nature found that climate change had wiped out woolly mammoths as well as other Arctic megafauna, but humans also put additional pressure on these species by hunting them.
Christopher Doughty, an ecologist at the University of Northern Arizona, modeled how large animals, among other things, affected ecosystems by moving seeds and nutrients during eating and defecating.
The expert found that the movement of elements such as phosphorus, calcium and magnesium, which play a crucial role in life, decreased by almost 90% along with the disappearance of megafauna.
The researcher emphasizes that without human intervention, all the necessary elements would be evenly distributed throughout the landscape.
Thus, the soil would be more fertile and productive.
Agriculture and zoning make land less fertile compared to systems in the wild.
Such increased fertility means that the Earth would be much richer in crops and colors, the planet would definitely be brighter without humans.
Without humans, the climate would be different.
Human induced global warming is known to have raised the average temperature by 1 degree Celsius since the early 20th century.
Consequently, the weather on the planet would be cooler without humanity.
A 2016 study in the journal Nature found that current warming delayed the onset of the ice age by at least 100,000 years.
But this should not have happened for another 50,000 years, so it is unlikely that without humans there would be another ice age on Earth right now.
People are inevitable
Modern humans (Homo sapiens) were not always the only hominins on the planet.
The disappearance of Homo sapiens could open up new perspectives for Neanderthals.
There is no single answer to the question of why the Neanderthals died out about 40 thousand years ago.
There were probably several reasons for their disappearance, and Homo sapiens are the main suspects.
Professor Chris Stringer from the Natural History Museum in London believes that the competition between Neanderthals and humans was one of the reasons for the disappearance of the former.
“If Homo sapiens hadn ’ t come to Europe about 45,000 or 50,000 years ago, I think Neanderthals and their descendants would still have lived on Earth, ” Stringer says.
The expert notes that Neanderthals led a complex life in Europe, they faced climate change, were a small group with low genetic diversity.
“Neanderthals probably were already in distress when modern humans came to their lands, and this factor could be the last, ” the expert notes.
But humans could have influenced the survival of more than just Neanderthals.
At least there is another relative of Homo sapiens who shared land with humans and Neanderthals: the Denisovans.
This line is closer to Neanderthals than to modern humans in terms of genes and appearance.
Judging by a number of studies, people interbred with Denisovans, because modern people continue to find the DNA of Denisovans.
It is assumed that Denisovans had a wider range of habitat than Neanderthals.
They may also have more genetic diversity than Neanderthals.
"Perhaps the Denisovans were even better species for survival than the Neanderthals," Stringer said.
In general, Denisovans and Neanderthals could pave the way similar to H. sapiens, moving from hunting and gathering to the development of agriculture.
"There is no obvious reason why Neanderthals or Denisovans would not have evolved if they had the time to do so," he said.

The extinction of megafauna led to the collapse of predators and the loss of fruit trees that relied on them for seed dispersal.

Title:

Content: Saturday 12 November 1443 AH - 11 June 2022 |
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Extinction of these animals has increased grassland fires
Translated by Voice of Beirut International
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A study has identified that the loss of megafauna in grazing land 50,000 years ago has led to a dramatic increase in grassland fires worldwide.
These large herbivores, which included the iconic woolly mammoth, giant bison and ancient horses, are believed to have become extinct as the climate warms.
However, the experts who led the study from Yale University showed that their loss had conclusive effects, with herbs they no longer ingested to provide fuel for wildfires.
The team added that their findings highlight the need to consider the role of herbivores when predicting current and future global fire activity.
The research was conducted by ancient ecologist Alison Karp of Yale University, Connecticut, and her colleagues.
“These extinctions led to a series of consequences, ” Dr. Karp said, among them, she explained, the collapse of predators and the loss of fruit trees that relied on large herbivores to disperse their seeds.
“Studying these effects helps us understand how herbivores shape the global environment today. ”
The researchers wondered whether the loss of giant herbivores would likely lead to the accumulation of dry grass, leaves and wood, which would lead to an increase in fire activity.
In their study, experts compiled a large list of now lost mammals and approximate dates on which they became extinct across four continents.
Their analysis indicated that South America lost the largest grazing species (83 per cent of all species), followed by North America (68 per cent), Australia (44 per cent) and Africa (22 per cent).
The team then compared this data to records of past wildfire activity as recorded by the presence of coal in lake sediments from 410 locations around the world.
Not only did this reveal wildfire activity increase following the extinction of megafauna, but the Americas, which lost more grazing, saw greater increases in fire levels than in Australia and Africa, where changes were less.
According to Dr. Karp and her colleagues, pastures have changed around the world due to the loss of herbivores, the resulting fires and the loss of grasses eaten by grazing.
It took some time for new livestock breeders, including cattle, to adapt to new ecosystems.
However, the loss of large animal species, such as mastodons, giant sloths and Diprotodons in Australia, which all feed on shrubs and trees, has not been found to be associated with a similar increase in wildfires.
The team said the findings show how we should think about the role of wildlife and livestock herders in mitigating wildfires, especially given climate change.
Study author and ecologist Carla Staffer, also from Yale University, said: “This work really highlights how important grazing is in shaping fire activity. ”
"We need to pay close attention to these interactions if we are to accurately predict the future of fires."

The loss of giant herbivores likely increased fire activity by accumulating dry grass, leaves, and wood.

South America, North America, Australia, and Africa lost 83%, 68%, 44%, and 22% of their largest grazing species, respectively.

The loss of megafauna 50,000 years ago has led to a dramatic increase in grassland fires worldwide.

Experts say herbivores must be considered when predicting global fire activity.

Climate change and human hunting may have contributed to the woolly mammoths' extinction, with the exact role of each factor still debated.

How did humans contribute to the wooly mammoth extinction?

What environmental factors contributed to the wooly mammoth extinction?

Studying the extinction of woolly mammoths informs strategies for conserving species in the face of climate change.

According to most recent research, what is the primary cause of wooly mammoth extinction?

What environmental factors contributed to the wooly mammoth extinction?

The loss of megafauna has had a cascading effect on vegetation and other species, making the world less vibrant and less able to support animal life.

The extinction of large animals has led to less fertile soil due to human practices like farming and fencing.

Without humans, landscapes would have more fertile soil and productive ecosystems.


The extinction of woolly mammoths is attributed to climate change, which altered their habitats and food sources, ultimately leading to their demise.

As the climate warmed, trees and swamp plants took the place of former mammoth pastures, changing the vegetation and reducing the availability of food for the mammoths.

The speed of climate change was a crucial factor, as the mammoths were unable to adapt quickly enough to the rapidly changing landscape and scarcity of food.

Researchers have found that the cause of the extinction of mammoths in Siberia was primarily a sharp climate change, rather than human activity.

However, some scientists argue that humans may have played a role in the extinction of mammoths, as they survived climate change before humans appeared and may have survived to this day had it not been for human pressure.

The discovery of mammoth bones packed together in a single location suggests that early humans may have hunted and slaughtered woolly mammoths, which could indicate a significant interaction between humans and these massive animals.

The loss of woolly mammoths and other megafauna had a significant impact on nutrient cycling in prehistoric ecosystems, with the movement of elements such as phosphorus, calcium, and magnesium decreasing by almost 90% after their disappearance.

The extinction of megafauna led to a series of consequences, including the collapse of predators and the loss of fruit trees that relied on large herbivores to disperse their seeds.

The loss of giant herbivores likely led to the accumulation of dry grass, leaves, and wood, which would lead to an increase in fire activity.

The researchers found that South America lost the largest grazing species, followed by North America, Australia, and Africa, with 83%, 68%, 44%, and 22% of species lost, respectively.

The team's analysis indicated that the loss of megafauna in grazing land 50,000 years ago has led to a dramatic increase in grassland fires worldwide.

The experts who led the study highlighted the need to consider the role of herbivores when predicting current and future global fire activity.

The combination of climate change and human hunting may have contributed to the extinction of the woolly mammoths, although the exact role of each factor is still a subject of debate.

The study of the extinction of woolly mammoths provides valuable insights into the impacts of climate change on species and ecosystems, and can inform strategies for conserving and managing species in the face of climate change.

The loss of megafauna has had a cascading effect on vegetation composition and other species, with the world becoming less vibrant and less able to feed more animals.

The extinction of large animals has led to a less fertile soil, as humans tend to group elements together through practices such as farming and creating fenced areas.

Without humans, elements would be evenly distributed across the landscape, leading to more fertile soil and more productive ecosystems.

The extinction of woolly mammoths is attributed to climate change, which altered their habitats and food sources, ultimately leading to their demise.

Title:

Content: Partners news
The cause of the extinction of mammoths
Scientists have found that mammoths died out due to climate change
Photo: Stanislav Krasilnikov / TASS
An international team of researchers found that the cause of the extinction of mammoths in Siberia was primarily a sharp climate change, not human activity.
The article is published in the journal Nature.
Woolly mammoths became extinct only about four thousand years ago.
They were not only the main source of meat of ancient people – the latter made from their bones the basis for dwellings, from their tusks made harpoons and even musical instruments.
Therefore, there is a widespread theory that the main cause of extinction was humans.
Researchers from the Institute of Earth Sciences of St. Petersburg State University together with colleagues from the UK, Denmark, China, Norway and the United States decided to restore the appearance of the tundrosteppe, which was inhabited by mammoths.
To do this, they using the shotgun method — obtaining from a random massive sample of cloned fragments of the original sequence — analyzed the DNA of ancient plants and animals collected from 535 different places in the Arctic, where the mammoth lived, over 20 years.
They also analyzed the DNA of more than 1,500 modern plants and animals.
Researchers were able to map the distribution of populations of mammoths and other representatives of the megafauna of the tundrosteppe.
They saw that over time their populations and genetic diversity became smaller and smaller — making survival increasingly difficult.
With the end of the Pleistocene about 12 thousand years ago and the accompanying retreat of glaciers and the formation of rivers, lakes and marshes, vegetation has decreased in volume, and it has become insufficient to maintain the previous level of populations.
As the climate warms, trees and swamp plants have taken the place of former mammoth pastures.
“We have shown that climate change, in particular rainfall, has directly led to changes in vegetation.
According to our models, people did not have any influence on them [mammoths], ” said the first author of the work, a researcher at the University of Cambridge Yuchen Wang.
However, the extinction of mammoths was influenced not only by the warming of the climate itself.
“His speed was the last nail in the lid of the coffin – they (megafauna tundrosteppe – approx.
“Tape.ru ”) could not adapt quickly enough, when the landscape radically changed and food was not enough, ” said the head of the scientific group, Professor of Copenhagen and Cambridge universities Eske Willerslev.
Only what is important to you is in the “Tape of the Day ” in Telegram.
Subscribe now

According to most recent research, what is the primary cause of wooly mammoth extinction?

How did climate change affect mammoth' habitat?

food sources disappearing
restricted habitat
pastures becoming swampy
shrank grassland

What are the causes of the wooly mammoth extinction?

What aspects of climate change contributed to the wooly mammoth extinction?

What environmental factors contributed to the wooly mammoth extinction?

As the climate warmed, trees and swamp plants took the place of former mammoth pastures, changing the vegetation and reducing the availability of food for the mammoths.

According to most recent research, what is the primary cause of wooly mammoth extinction?

How did climate change affect mammoth' habitat?

food sources disappearing
restricted habitat
pastures becoming swampy
shrank grassland

What are the causes of the wooly mammoth extinction?

What aspects of climate change contributed to the wooly mammoth extinction?

What environmental factors contributed to the wooly mammoth extinction?

The speed of climate change was a crucial factor, as the mammoths were unable to adapt quickly enough to the rapidly changing landscape and scarcity of food.

According to most recent research, what is the primary cause of wooly mammoth extinction?

How did climate change affect mammoth' habitat?

food sources disappearing
restricted habitat

What are the causes of the wooly mammoth extinction?

What aspects of climate change contributed to the wooly mammoth extinction?

What environmental factors contributed to the wooly mammoth extinction?

Researchers have found that the cause of the extinction of mammoths in Siberia was primarily a sharp climate change, rather than human activity.

According to most recent research, what cause of wooly mammoth extinction is not as important as previously believed?

According to most recent research, what is the primary cause of wooly mammoth extinction?

What are the causes of the wooly mammoth extinction?

What aspects of climate change contributed to the wooly mammoth extinction?

What environmental factors contributed to the wooly mammoth extinction?

However, some scientists argue that humans may have played a role in the extinction of mammoths, as they survived climate change before humans appeared and may have survived to this day had it not been for human pressure.

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Content: How would the earth be different if modern man did not exist?
The Libyan Observatory Newspaper
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The human footprint can be seen across the planet today, from the towering skyscrapers that define our modern capitals to the pyramids and other ancient relics from our past.
Human activity also represents the sprawling open fields of agriculture, the roads that connect everything together.
But what would the world look like if humans didn ’ t exist before?
Some scientists paint a picture of a pure wilderness and an abundance of species, from fashionable to uncommon.
Trevor Worthy, a paleontologist and assistant professor at Flinders University in Australia, told Live Science: “I think it would be a much more vegetative place with a wealth of animals, of great size, spread across all continents except Antarctica. ”
A world without modern humans may also mean that our extinct human relatives, such as Neanderthals, will still exist.
And, of course, they would have changed the scene as well.
Humans shaped the world at the expense of many species, from the dodo (Raphus cucullatus) to the Tasmanian tiger (Thylacinus cynocephalus), which pushed us to extinction through activities such as hunting and habitat destruction.
The rate of extinction on Earth today is more than 100 times what it would have been without humans, according to the most conservative estimates, and has not been higher since the Cretaceous and Paleogene (K-Pg) extinction event that wiped out about 80% of animal species, including non-floating dinosaurs, 66 million years ago.
In other words, humans collided with the planet like an asteroid, and the dust continues to settle as wildlife continues to deteriorate.
“My great-grandfather was able to see herds of thousands of parrots in the landscape, my grandfather saw a hundred flocks, my father saw little and I ’ m lucky if I could see two in the woods, ” said Worthy.
The human-driven decline of nature suggests that Earth would be a more wild place without us, with some lost giants, such as moas, standing out the most.
This group of ostrich-like birds, some of which extend up to 11.8 feet (3.6 m) in New Zealand, evolved over millions of years.
Within 200 years of humans reaching their land 750 years ago, all nine species of moa have disappeared, along with at least 25 other vertebrate species, including the giant Haast eagles (Hieraaetus moorei) that hunted moa, according to Worthy.
The giant moa and the Haast vultures are recent examples of large animals whose eventual extinction is linked to human activities, such as unsustainable hunting and the introduction of invasive species into new habitats.
They are also indicators of what our relationship with large animals might be like elsewhere.
The survival of large animals is crucial to speculate on the existence of a land without humans, as these monsters have a significant impact on the landscape.
– Serengeti System
Soren Furby, senior lecturer in zoology at the University of Gothenburg in Sweden, believes that humans played a key role in the disappearance of many large mammals thousands of years ago.
He led a 2015 study, published in the journal Diversity and Distributions, which suggested that without humans, the Earth would be much like the contemporary Serengeti system, an African ecosystem teeming with life.
In this scenario, extinct animals similar to those found in Serengeti today – including elephants, rhinos and lions – would live across Europe.
For example, instead of African lions (Panthera leo), there are still cave lions (Panthera spelaea), a slightly larger species that lived in Europe until about 12,000 years ago.
Meanwhile, the Americas will be home to relatives of huge elephants and bears, along with unique species, according to Forby.
"In a world without humans, there will be much more diversity than large mammals, and if you see a greater diversity than large mammals, you tend to see a more open habitat," Forby said.
Elephants and other large animals are well identified when finding food, and will not tolerate unnecessary obstacles.
“If you ’ re old enough, it might be easier to knock on a tree and eat fresh leaves on top of it, ” Forby said.
But also, if there are a large number of large mammals, there is a tendency to have fewer wooded plants in the first place, he said.
Large animals, such as elephants, are known as megafauna.
During the last ice age (2.6 million to 11,700 years ago), the world was rich in megafauna, but most of them died at the end of the ice age, or in the thousands of years since.
For example, about 38 genera of large animals went extinct in North America at the end of the last ice age, according to a 2020 study published in the journal Proceedings of the National Academy of Sciences.
Over the past century, scientists have debated whether natural climate changes or human activities, such as overfishing, are the main reason for the decline of these large animals.
A 2021 study published in Nature concluded that climate change ultimately wiped out the woolly mammoths (Mammuthus primigenius) and other Arctic megafauna that survived the end of the ice age.
However, humans hunted mammoths.
Scientists who believe humans may have been the main factor in their extinction, such as Forby, argue that mammoths survived climate change before humans appeared and would probably survive to this day had it not been for the added pressure humans placed on them.
Christopher Dottie, an associate professor and ecologist at Northern Arizona University, is modeling how past and present large animals transport seeds and nutrients through eating and defecating.
His work indicates that the transport of elements such as phosphorus, calcium and magnesium, which are important for life, was reduced by more than 90% through the extinction of large animals.
Dotti hypothesizes that without humans, elements would be evenly distributed across the landscape.
This means more fertile soil, which makes ecosystems more productive.
Humans tend to group elements together through practices such as farming and creating fenced areas, so that these areas become less fertile over time compared to terrestrial systems, according to Dauty.
Greater fertility means that plants can devote their resources to more fruit and flowers, so that the world looks more vibrant and feeds more animals.
While it is difficult to determine how humans and megafauna have influenced climate change for thousands of years with evidence obscured over time, it is much easier to judge our impact on Earth ’ s climate today.
Through global warming, caused by activities such as burning fossil fuels, humans have raised the global average temperature by about 1.8 degrees Fahrenheit (1 degrees Celsius) since the beginning of the 20th century.
Therefore, the Earth would have been at least colder without us.
A 2016 study published in the journal Nature concluded that human-induced warming would delay the next ice age by at least 100,000 years.
And it wasn't due for another 50,000 years, though, even without human delay, so it's unlikely that Earth would be in the middle of another ice age today if we didn't exist.
Humans are inevitable.
Scientists aren ’ t sure why Neanderthals went extinct about 40,000 years ago, but because they mate with Homo sapiens, parts of their DNA are found in some of us.
There were probably multiple causes of Neanderthal death, but we're a prime suspect.
Chris Stringer, a professor and research leader in human origins at the Natural History Museum in London, believes competition for resources was a factor in the disappearance of Neanderthals.
“If we weren ’ t around, if we hadn ’ t come to Europe 45,000 or 50,000 years ago, I think they ’ d probably stay here, ” he told Live Science.
According to Stringer, Neanderthals lived a complex life in Europe, similar to modern humans, but they had difficulty adapting to climate change and were relatively few in number, with low genetic diversity.
This is bad news for any species, as it is a sign of inbreeding and ill health.
Stringer said Neanderthals were probably “already in trouble, and when modern humans got there too, I think that ’ s probably what pushed them to the edge. ”
Scientists are still learning about at least one human lineage that lived around the same time as modern humans and Neanderthals: Denisovans.
This lineage appears to be closer to Neanderthals than modern humans in genes and appearance, but it can be distinguished from Neanderthals with very large molars.
There is evidence of DNA in current humans living in places like New Guinea in Oceania — a finding that suggests Denisovans were in Southeast Asia interacting with ancestors of modern humans who later settled in the East, according to a 2012 study published in the journal Science.
These Denisovan interactions, along with fossil evidence, suggest that they had a larger geographic range than Neanderthals, encompassing a variety of environments and, therefore, arguably, were more adaptive than Neanderthals.
DNA evidence also suggests that Denisovans may have had greater genetic diversity than Neanderthals, according to Stringer.
Stringer said: “There ’ s no reason why Neanderthals or Denisovans shouldn ’ t do it eventually, given enough time. ”
He added that they may have overcome any potential intellectual deficiency, which is not clear to them, through evolution.
So maybe the world won ’ t look completely different after all.
Likewise, they could have made the same mistakes we have made since then.
So, global warming could have been here, but with Neanderthals or Denisovans leading it, not us.
"Who knows?"
Source: Live Science

How did humans contribute to the wooly mammoth extinction?

What are the causes of the wooly mammoth extinction?

The discovery of mammoth bones packed together in a single location suggests that early humans may have hunted and slaughtered woolly mammoths, which could indicate a significant interaction between humans and these massive animals.

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Content: Woolly Mammoth Bones Unearthed in Austrian Wine Cellar

It wasn’t the first time that ancient artifacts were discovered in one of Kamptal’s wine cellars.

An Austrian winemaker renovating his cellar unearthed a trove of woolly mammoth bones that could expand our understanding of the relationship between humans and the prehistoric beasts.

Andreas Pernerstorfer’s winery is in the notable winemaking and cultural region of Kamptal in northeastern Austria. After stumbling upon the huge bones in the dirt floor, he reported his discovery to Austria’s Federal Monuments Office. The Austrian Archaeological Institute has been excavating the site since March 2024 to a depth of 55 feet below ground and says it’s the first significant paleontology site found in Austria in a century.

The bones are believed to be between 30,000 and 40,000 years old and belonged to at least three woolly mammoths. According to Hannah Parow-Souchon, the paleontologist leading the excavation, the discovery is significant because mammoth bones are rarely found packed together. This could mean they were bunched there by humans, which could indicate they were hunted and slaughtered by humans; the site might be the remains of a Holocene Epoch cookout.

Most archaeologists agree that humans gathered in groups and used spears and other tools to take down woolly mammoths and other megafauna, which would have been immense sources of meat, hides, and bones to use as raw materials for tools. This activity could have contributed to the animals’ extinction

There is some debate whether preying on the massive beasts was a regular practice for Stone Age people, and science is foggy about how a band of simple humans could get the drop on an animal that stood 10 feet tall, weighed as much as six tons, and had fearsome protective tusks. The process would reveal a lot about coordination and planning among Paleolithic people.

Parow-Souchon said in a statement from the Austrian Academy of Sciences that it is possible that humans set a trap for mammoths there. She also said it was the most significant discovery of woolly mammoth remains in more than 100 years; most such sites in Europe have been dug up and hollowed out, with their archaeological value lost over time.

This is not the first such find in Kamptal. About 150 years ago, relics of early human life—including flint artifacts, jewelry fossils, and charcoal—were discovered there in a wine cellar next door.

How did humans contribute to the wooly mammoth extinction?

What are the causes of the wooly mammoth extinction?

The loss of woolly mammoths and other megafauna had a significant impact on nutrient cycling in prehistoric ecosystems, with the movement of elements such as phosphorus, calcium, and magnesium decreasing by almost 90% after their disappearance.

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Content: Cave lions in Europe and mammoths in the United States.
Scientists have told what the Earth would be without Homo sapiens
The researchers say that in general, the planet could be an exciting place, which would be inhabited by representatives of megafauna.
Scientists believe that without humans, the Earth would be a more wild and fertile place, in which giants such as ostrich moa birds with a height of 3.6 meters still lived.
They lived in New Zealand for millions of years, but disappeared 750 years after their land was invaded by man, writes LiveScience.
The vanished giant moas and eagles of Haast, whose wingspan was 2.6 meters or more, are a small example of how human activity has changed the planet.
The survival of such large animals is crucial in thinking about what the Earth would be like without humans, as such giants have a crucial influence on landscapes.
Senior lecturer in zoology at the University of Gothenburg in Sweden, Seren Forby, says humans have played a crucial role in the extinction of many large mammals.
Forby led the study, published in the journal Diversity and Distributions.
It said that without humans, the Earth would resemble an ecoregion in East Africa, the Serengeti, teeming with life.
In such a scenario, extinct animals, along with elephants, rhinos and lions, would live throughout Europe.
For example, the African lions (Panthera leo) would still be replaced by cave lions (Panthera spelaea), a larger species that lived in Europe about 12,000 years ago.
At the same time, America would be home to larger relatives of elephants and bears, as well as unique species such as the glyptodon – car-sized armadillos and giant sloths.
“In a world without humans, there would be a lot more different species of large mammals, as well as a much more open habitat, ” says Forby.
Elephants or other species of large animals do not tolerate obstacles in their search for food.
In such cases, the territory acquires a less wooded appearance.
The world would be brighter
During the last Pleistocene Ice Age (2.6 million to 11,700 years ago), the Earth was rich in megafauna.
Much of it went extinct after the end of this ice age or millennia later.
A 2021 study from the journal Nature found that climate change had wiped out woolly mammoths as well as other Arctic megafauna, but humans also put additional pressure on these species by hunting them.
Christopher Doughty, an ecologist at the University of Northern Arizona, modeled how large animals, among other things, affected ecosystems by moving seeds and nutrients during eating and defecating.
The expert found that the movement of elements such as phosphorus, calcium and magnesium, which play a crucial role in life, decreased by almost 90% along with the disappearance of megafauna.
The researcher emphasizes that without human intervention, all the necessary elements would be evenly distributed throughout the landscape.
Thus, the soil would be more fertile and productive.
Agriculture and zoning make land less fertile compared to systems in the wild.
Such increased fertility means that the Earth would be much richer in crops and colors, the planet would definitely be brighter without humans.
Without humans, the climate would be different.
Human induced global warming is known to have raised the average temperature by 1 degree Celsius since the early 20th century.
Consequently, the weather on the planet would be cooler without humanity.
A 2016 study in the journal Nature found that current warming delayed the onset of the ice age by at least 100,000 years.
But this should not have happened for another 50,000 years, so it is unlikely that without humans there would be another ice age on Earth right now.
People are inevitable
Modern humans (Homo sapiens) were not always the only hominins on the planet.
The disappearance of Homo sapiens could open up new perspectives for Neanderthals.
There is no single answer to the question of why the Neanderthals died out about 40 thousand years ago.
There were probably several reasons for their disappearance, and Homo sapiens are the main suspects.
Professor Chris Stringer from the Natural History Museum in London believes that the competition between Neanderthals and humans was one of the reasons for the disappearance of the former.
“If Homo sapiens hadn ’ t come to Europe about 45,000 or 50,000 years ago, I think Neanderthals and their descendants would still have lived on Earth, ” Stringer says.
The expert notes that Neanderthals led a complex life in Europe, they faced climate change, were a small group with low genetic diversity.
“Neanderthals probably were already in distress when modern humans came to their lands, and this factor could be the last, ” the expert notes.
But humans could have influenced the survival of more than just Neanderthals.
At least there is another relative of Homo sapiens who shared land with humans and Neanderthals: the Denisovans.
This line is closer to Neanderthals than to modern humans in terms of genes and appearance.
Judging by a number of studies, people interbred with Denisovans, because modern people continue to find the DNA of Denisovans.
It is assumed that Denisovans had a wider range of habitat than Neanderthals.
They may also have more genetic diversity than Neanderthals.
"Perhaps the Denisovans were even better species for survival than the Neanderthals," Stringer said.
In general, Denisovans and Neanderthals could pave the way similar to H. sapiens, moving from hunting and gathering to the development of agriculture.
"There is no obvious reason why Neanderthals or Denisovans would not have evolved if they had the time to do so," he said.

The extinction of megafauna led to a series of consequences, including the collapse of predators and the loss of fruit trees that relied on large herbivores to disperse their seeds.

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Content: Saturday 12 November 1443 AH - 11 June 2022 |
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Extinction of these animals has increased grassland fires
Translated by Voice of Beirut International
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A study has identified that the loss of megafauna in grazing land 50,000 years ago has led to a dramatic increase in grassland fires worldwide.
These large herbivores, which included the iconic woolly mammoth, giant bison and ancient horses, are believed to have become extinct as the climate warms.
However, the experts who led the study from Yale University showed that their loss had conclusive effects, with herbs they no longer ingested to provide fuel for wildfires.
The team added that their findings highlight the need to consider the role of herbivores when predicting current and future global fire activity.
The research was conducted by ancient ecologist Alison Karp of Yale University, Connecticut, and her colleagues.
“These extinctions led to a series of consequences, ” Dr. Karp said, among them, she explained, the collapse of predators and the loss of fruit trees that relied on large herbivores to disperse their seeds.
“Studying these effects helps us understand how herbivores shape the global environment today. ”
The researchers wondered whether the loss of giant herbivores would likely lead to the accumulation of dry grass, leaves and wood, which would lead to an increase in fire activity.
In their study, experts compiled a large list of now lost mammals and approximate dates on which they became extinct across four continents.
Their analysis indicated that South America lost the largest grazing species (83 per cent of all species), followed by North America (68 per cent), Australia (44 per cent) and Africa (22 per cent).
The team then compared this data to records of past wildfire activity as recorded by the presence of coal in lake sediments from 410 locations around the world.
Not only did this reveal wildfire activity increase following the extinction of megafauna, but the Americas, which lost more grazing, saw greater increases in fire levels than in Australia and Africa, where changes were less.
According to Dr. Karp and her colleagues, pastures have changed around the world due to the loss of herbivores, the resulting fires and the loss of grasses eaten by grazing.
It took some time for new livestock breeders, including cattle, to adapt to new ecosystems.
However, the loss of large animal species, such as mastodons, giant sloths and Diprotodons in Australia, which all feed on shrubs and trees, has not been found to be associated with a similar increase in wildfires.
The team said the findings show how we should think about the role of wildlife and livestock herders in mitigating wildfires, especially given climate change.
Study author and ecologist Carla Staffer, also from Yale University, said: “This work really highlights how important grazing is in shaping fire activity. ”
"We need to pay close attention to these interactions if we are to accurately predict the future of fires."

The loss of giant herbivores likely led to the accumulation of dry grass, leaves, and wood, which would lead to an increase in fire activity.

The researchers found that South America lost the largest grazing species, followed by North America, Australia, and Africa, with 83%, 68%, 44%, and 22% of species lost, respectively.

The team's analysis indicated that the loss of megafauna in grazing land 50,000 years ago has led to a dramatic increase in grassland fires worldwide.

The experts who led the study highlighted the need to consider the role of herbivores when predicting current and future global fire activity.

The combination of climate change and human hunting may have contributed to the extinction of the woolly mammoths, although the exact role of each factor is still a subject of debate.

According to most recent research, what cause of wooly mammoth extinction is not as important as previously believed?

How did humans contribute to the wooly mammoth extinction?

What environmental factors contributed to the wooly mammoth extinction?

The study of the extinction of woolly mammoths provides valuable insights into the impacts of climate change on species and ecosystems, and can inform strategies for conserving and managing species in the face of climate change.

According to most recent research, what is the primary cause of wooly mammoth extinction?

What environmental factors contributed to the wooly mammoth extinction?

According to most recent research, what is the primary cause of wooly mammoth extinction?

What environmental factors contributed to the wooly mammoth extinction?

The loss of megafauna has had a cascading effect on vegetation composition and other species, with the world becoming less vibrant and less able to feed more animals.

The extinction of large animals has led to a less fertile soil, as humans tend to group elements together through practices such as farming and creating fenced areas.

Without humans, elements would be evenly distributed across the landscape, leading to more fertile soil and more productive ecosystems.


The medication shortage poses a significant risk to patient safety by delaying necessary treatment and limiting access to vital drugs.

The US deficit of medications has reached a record level, with 323 drugs in short supply in the first quarter of 2024.

The most worrisome shortages include sterile injectable generic drugs, such as cancer chemotherapy and emergency drugs.

The FDA reported that about 111 drugs, including digoxin injection, Dacarbazine, and some antibiotics, are out of stock in the US.

The authorities cite production and quality issues, drug problems, and production suspensions as reasons for the shortage.

Hospital pharmacists are reporting a critical shortage of chemotherapy drugs and nearly universal medicine supply gaps.

Hospitals are substituting drugs and changing treatment plans due to key drug scarcity, putting patients at risk when no alternatives are available.

The lack of medication can lead to increased anxiety and stress due to uncertainty about treatment availability.

Medication shortages lead to additional economic costs for the health system and patients.

Growing demand and manufacturing problems, such as supply chain gaps and downtime, can cause drug shortages.

A factory closure in India, due to FDA-found quality issues, caused a shortage of the generic chemical drug.

The Ministry of Health and Welfare has proposed a strategy to address the medication shortage by allocating drugs to medical institutions and pharmacies.

The FDA disseminates drug supply and alternative information through channels like the "Drug Supply Information Platform", VPN, and weekly letters to medical institutions and pharmacies.

The White House proposed spending $3.26 billion to $5.11 billion over the next decade to address the nation's drug shortage.

The WHO reports that 28 of 35 countries lack sufficient penicillin-type drugs, according to Lisa Hedman.

Complaints about amoxicillin shortages were reported in the US and Canada, with less information available on poorer or small

The medication shortage poses a significant risk to patient safety by delaying necessary treatment and limiting access to vital drugs.

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Content: Lack of medicines in MOH hospitals and accumulation of indebtedness Repercussions / solutions
3 hours ago
Dr. Naeem Malkawi
The problem of shortage of medicines in Jordanian hospitals requires quick and effective attention and intervention, as providing medicines to patients is one of the foundations of quality health care and one of the most important strategies of the Ministry of Health, however, the shortage of medicines in many hospitals leads to health, economic and social challenges that threaten the quality of health care and patient safety.
The budget of the Ministry of Health of medicines, vaccines, vaccines and medical consumables for this year 2023 was estimated at 103.75 million dinars, where the actual for the past year 2022 was 93.8 million dinars.
The question is, how did the Ministry of Health accumulate such a large indebtedness in the item of medicines to reach 300 million dinars for pharmaceutical companies?
And why last week was the debt of 2019 cleared and deducted estimated at 50% of the debt for that year?
This means that there is still a delay in the payment of dues for companies for the years 2020, 2021 and 2022 in addition to eight months of the current year 2023, and this brings us to a range of reasons and challenges:
1.
The aim of the Ministry of Health was to reduce the bureaucracy of procedures and overcome the complexity of procurement references in hospitals and health directorates in the governorates and not to obtain price and discount preferences, but the results indicate a defect in the management and mechanism of dealing with the strategy of unified and central procurement, despite the margin for hospital administrations to use the power of direct purchase in cases of necessity.
2.
Preparation of sub-budgets for hospitals: Evidence shows that there is a problem in the preparation of sub-budgets for hospitals and the main budget of the Ministry of Health with regard to the item of medicines, which is due to the lack of accurate and sufficient data on the number of patients and hospital needs of medicines, and the lack of accurate forecasting of future needs.
3.
Delays in the review of financial claims and invoices between the Ministry of Health and the hospitals on the one hand and the pharmaceutical companies on the other hand, is one of the most important reasons behind the accumulation of indebtedness, and this negatively affects the liquidity of the pharmaceutical companies and hinders them from providing a sustainable service in adhering to the procedures of supplying medicines according to schedule.
4.
Lack of coordination and communication: There may be a lack of coordination and communication between hospitals, the Ministry of Health and pharmaceutical companies, which complicates the supply and distribution of medicines and increases the chances of delays and the depletion of medicines from hospitals in the absence of an effective policy for stock management and the time required for stock adequacy.
5.
Focusing on the trade names of certain drugs from specific production sources and not adopting the protocol of writing the scientific name for the prescriptions of patients.
6.
One of the reasons that may be major and important at the same time is the funding aspect and the lack of the necessary allocations or use them in other aspects other than medicines to fill a deficit or emergency during the use of budget items due to the scarcity of available liquidity. Medication.
Lack of medication can lead to:
1.
Threat to patient safety: Lack of medication puts sick people at risk, as this can lead to delays in receiving necessary treatment or the unavailability of vital drugs, putting their lives at risk.
2.
Economic Implications: The lack of medicines entails additional economic costs for the health system and patients.
Medical cases may be referred to other medical centers or private hospitals, increasing pressure on other MOH budget items.
3.
Pressure on health care workers: Health care workers are under pressure as a result of dealing with patients affected by drug shortages and repeatedly facing their inquiries and complaints.
4.
Social repercussions:
Increased anxiety and stress: A lack of medication can lead to an increase in anxiety and stress among patients and their families, as they live in uncertainty about the availability of the necessary treatment.
Lack of medication can affect the level of trust in the health system among citizens, who may feel that the system is unable to provide them with adequate health care.
Increased costs and social burdens: Some patients may have to incur additional costs to obtain drugs from other sources outside hospitals, affecting their financial and economic status.
After all this narrative there must be ways to overcome these dilemmas:
1.
Preparation of budgets scientifically and professionally: Hospitals should develop more accurate standards for the preparation of sub-budgets for medicines, through the analysis of previous data, estimation of future needs and other scientific and methodological foundations in the preparation of budgets and commitment to apply them accurately.
2.
Improve coordination and communication between parties: Coordination between the Ministry of Health, hospitals and pharmaceutical companies should be strengthened through the establishment of structured mechanisms for information exchange, review of invoices, and completion of claims, and not delay them.
3.
Implementation of fiscal reforms: The Government and the Ministry of Health should implement fiscal reforms that provide funding to cover this important item and pay dues in a timely manner, reduce bureaucracy in the financial audit process, and proceed with payment procedures within the timetable mechanism agreed in the tender terms.
4.
Achieving social responsibility: The government and pharmaceutical companies should adopt a social responsibility towards patients by providing these drugs and reducing their prices in the market to make them more accessible to patients while relieving part of the pressure and burden on hospitals.
Addressing the problem of drug shortages in government hospitals requires comprehensive cooperation between all concerned parties from government, Ministry of Health, hospitals, drug suppliers and patients.
To provide medicines on a permanent basis and to ensure the provision of high quality health care to the Jordanian patient.

The US deficit of medications has reached a record level, with 323 drugs in short supply in the first quarter of 2024.

Title:

Content: General Supervision
Elham Aboul Fath
Editor-in-Chief
Thank you for your patience.
General Supervision
Elham Aboul Fath
Editor-in-Chief
Thank you for your patience.
An Unexpected Catastrophe in the World ’ s Largest Country: The Complete Story of U.S. Drug Shortages
The deficit is at a record level.
According to data from the American Society of Health System Pharmacists and the University of Utah Drug Information Service, organizations began tracking drug shortages for the first time in 2001. Steady since 2021 – now reaching a record high of 323 drugs in the first three months of 2024.
Paul Abramowitz, CEO of the American Society of Health System Pharmacists, wrote in a blog post on Thursday: “It ’ s been a long time to end drug shortages, ” and wrote:“ All drug classes are vulnerable to shortages, some of the most worrisome shortages include sterile injectable generic drugs, including cancer chemotherapy drugs and emergency drugs stored in hospital vans and procedural areas. It is dangerous for doctors and patients. ”
In addition to the 32 chemotherapy drugs that are deficient, the five categories of drugs with the greatest deficiency include central nervous system stimulants, antimicrobials, hormonal agents, and intravenous fluids. [1] The Drug Deficiency Database maintained by the American Society of Health System Pharmacists and the University of Utah is based on voluntary reports from practitioners, patients, and others that have been confirmed by manufacturers. The U.S. drug is in short supply, because it captures broader effects on service providers and patients.
The crisis has lasted a year and a half.
More than half of the treatment shortages have lasted for more than two years, according to an analysis by health consultancy IQVIA, and the average shortage affects at least half a million patients, many of them elderly, according to the US Office of Health and Human Services under the Assistant Secretary for Planning and Evaluation, which shared its analysis with Congress in May.
Growing demand can play a role in drug shortages, as with the recent shortage of weight-loss drugs, but often manufacturing and quality problems, such as supply chain gaps and downtime, are the root cause. And varied.
But the American Society of Health System Pharmacists has “serious concerns ” about parts of this proposal, especially financial sanctions imposed on hospitals that lack the resources to comply with the recommendations, Abramowitz wrote:“ We all know that managing shortages is not enough and is not a sustainable solution to the worsening crisis, and there is still a lot of work to be done at the federal level to fix the root causes of drug shortages. ”
Why Shortage Occurs
Shortages can be caused by high demand, as with the recent shortage of weight-loss drugs, but this is not usually the main problem.
The FDA also blames manufacturing and quality problems, supply chain gaps, and downtime, and Dr. Emily Tucker, a drug shortage expert and an assistant professor of industrial engineering at Clemson University, says that when there is an indication of shortages, large health systems often also proactively place large orders, adding to the system ’ s stress.
“I don ’ t blame anyone.
“When I talk to all the stakeholders – whether it ’ s wholesalers, manufacturers, or the government – everyone wants this problem to end, ” she said.
Lack of transparency
Dr. Julie Grallo, chief medical officer and executive vice president of the American Society of Clinical Oncology, told the House Committee earlier that the shortage puts providers in a terrible position: “The drug shortage crisis is forcing providers to make impossible choices, and it is also hindering the development of new drugs. Health drugs are purchased only on a price basis, and manufacturers do not have to disclose the source of their acquisition of the ingredients.
The shortage of this generic chemical drug came due to the closure of one factory in India that manufactures the active ingredient after a surprise FDA inspection found “significant quality issues, ” says Jarallo:“ We didn ’ t know, and there was no transparency regarding the company ’ s supply of the majority of active pharmaceutical ingredients to all manufacturers across the board.
Knowing this in advance, we could have responded much faster, ” Dr. Steven Schundlemeyer, director of the PRIME Institute of the University of Minnesota School of Pharmacy, which focuses on economic and management issues, told the committee that as with defense contractors in the United States, New Zealand requires manufacturers to disclose their suppliers, and that information is required.
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The most worrisome shortages include sterile injectable generic drugs, such as cancer chemotherapy and emergency drugs.

The FDA reported that about 111 drugs, including digoxin injection, Dacarbazine, and some antibiotics, are out of stock in the US.

Title:

Content: US supply chain crisis continues, FDA points to 111 drug shortages
Global Social Hotspot 16: 35 2021 / 12 / 05
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The supply chain crisis in the United States continues, and many goods are facing shortages.
The US media said that the US pharmacies have a number of critical prescription drugs in stock. The US Food and Drug Administration (FDA) pointed out that about 111 drugs are out of stock in the United States. The FDA stressed that it will continue to take measures to monitor the supply chain.
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The Federal Reserve warned on Wednesday that large parts of the United States had begun to be affected by supply chain disruptions and labor shortages last month.
According to the FDA website, 111 drugs are out of stock in the United States, including the heart disease drug digoxin injection, the chemical drug Dacarbazine and some antibiotics.
The authorities say there are many reasons for the shortage, including production problems, quality problems, drugs and even the suspension of production.
According to the FDA, about 80% of the manufacturers of active pharmaceutical ingredients are located overseas, and the manufacturers have provided the FDA with most of the drug shortage information.
The Administration will also work closely with these manufacturers to address the drug shortage.
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Long Island Newspaper Newsday quoted Tom D'Angelo, president of the New York State Association of Pharmacists, as saying the shipping of a large number of medicines, including those for common blood pressure and for the treatment of colds and flu, was blocked.
Because of supply chain problems, the owner of a New York drugstore said there were fewer brands for some drugs, including Ibuprofen.
The National Association of Community Pharmacists (NCPA) released a survey last month that found that most non-chain pharmacies are struggling to fill employee vacancies and cope with supply chain disruptions.
Sixty percent of pharmacies surveyed said they were dealing with supply chain disruptions, and nearly 70 percent said it was difficult to fill staff vacancies.
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The authorities cite production and quality issues, drug problems, and production suspensions as reasons for the shortage.

Hospital pharmacists are reporting a critical shortage of chemotherapy drugs and nearly universal medicine supply gaps.

Title:

Content: As drug shortage list grows, many hospitals face tough decisions on rationing care

More than half of hospital pharmacists are reporting a critical shortage of chemotherapy drugs and nearly all are reporting overall medicine supply gaps as prescription drug shortages near an all time high, according to a new survey.

Hospital pharmacists said drug shortages have forced 1 in 3 health systems to delay, cancel or ration care or switch to alternate drugs to continue to treat patients. And 99% are reporting some drug supply shortages, an American Society of Health-System Pharmacists survey of more than 1,000 pharmacists released Thursday found.

The organization reported shortages of 309 drugs, near the all-time high of 320 shortages in 2014. The scarcity of key drugs is prompting hospitals to find or substitute drugs and change treatment plans as needed.

“In some cases, there are no alternatives to the affected drugs, which puts patients at risk," ASHP Chief Executive Officer Paul W. Abramowitz said in a statement. "This issue requires quick action from Congress to address the underlying causes of shortages and ensure patients have the medications they need.”

Cancer drug shortages

In June, the Food and Drug Administration said it will temporarily allow overseas drug manufacturers to import some chemotherapy drugs.

The FDA allowed Qilu Pharmaceutical, a drug manufacturer in China, to import the injectable chemotherapy drug cisplatin in 50-milligram vials. Toronto pharmaceutical company Apotex Corp. will distribute the medication in the United States.

More than a dozen cancer drugs have been in shortage in recent months, including cisplatin and carboplatin, used to treat lung, breast, prostate and gynecologic cancers. The National Cancer Institute said cisplatin and similar drugs are prescribed for 10% to 20% of all cancer patients.

In June, the National Comprehensive Cancer Network released a survey of 27 academic cancer centers that found 93% reported shortages of carboplatin and 70% faced shortages of cisplatin.

When cancer hospitals face such shortages, they attempt to make sure there's enough medication for patients to finish the course of treatment, said Mike Ganio, ASHP's senior director of pharmacy practice and quality.

Cancer hospitals facing such shortages might change medications for new patients starting on chemotherapy, said Ganio, a former pharmacy manager at an academic cancer center.

"You try to keep that patient on the same regimen as much as you can, unless they're failing it for some reason, and then you would switch," Ganio said.

Steroids, hormonal drugs also in short supply

More than 1 in 5 hospital pharmacists also reported shortages for steroids, hormonal drugs and oral liquids such as lidocaine, ibuprofen and amoxicillin.

A smaller number of pharmacists said heart medications, emergency prefilled syringes and drugs used for intensive care unit patients were in short supply. Others reported shortages of attention deficit hyperactivity disorder medicines, antimicrobial drugs and injectable opioids.

In all, about two-thirds of pharmacists said the shortages were "moderately impactful," which means they are managing shortages but patients are affected.

Pharmacists are managing the shortages by offering therapeutic alternatives, buying different vial sizes or concentrations and rationing medicines.

This article originally appeared on USA TODAY: Survey: Drug shortages are widespread, hospitals ration care

Hospitals are substituting drugs and changing treatment plans due to key drug scarcity, putting patients at risk when no alternatives are available.

The lack of medication can lead to increased anxiety and stress due to uncertainty about treatment availability.

Medication shortages lead to additional economic costs for the health system and patients.

Growing demand and manufacturing problems, such as supply chain gaps and downtime, can cause drug shortages.

A factory closure in India, due to FDA-found quality issues, caused a shortage of the generic chemical drug.

The Ministry of Health and Welfare has proposed a strategy to address the medication shortage by allocating drugs to medical institutions and pharmacies.

Title:

Content: The lack of medicine continues to burn!
The Ministry of Health and Welfare has proposed a short, medium and long-term strategy to deal with the current 5 coping mechanisms.
Journalist Yen Zhenzhen / Taipei Report
According to the Ministry of Health and Welfare, the shortage of drugs is not a single factor, but includes supply problems, manufacturing problems, clinical demand factors, uneven distribution of drugs, drug use habits and drug prices. In addition to dealing with the relatively high clinical demand items, it is properly allocated to all levels of medical institutions and pharmacies to fully meet the needs of clinical end-use drugs.
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In the face of the shortage of drugs, Wang said, the existing health insurance uses five major coping mechanisms, including 1, a single processing window, a dedicated person to help deal with the problem of drug purchase, and contact the Food and Drug Administration to put relevant information on the website of the NHI. (4) Drug price adjustment mechanism that does not meet the cost can be re-checked according to the way of raising the price of special drugs; (5) Alternative drugs can still declare the cost, if they are not irreplaceable, they can be replaced at the same price or lower than the original prescription drug price.
In addition, Wang pointed out that in the face of the international epidemic, the Russian-Ukrainian war, and labor shortage, drug shortage is a problem facing all countries. In order to strengthen the stable supply mechanism of drugs in China, the Ministry of Health and Welfare continues to actively respond to the short-term strategy to solve the problem of drug shortage. The Food and Drug Administration (FDA) and the pharmaceutical industry have made every effort to actively arrange production lines, strive for early import, increase production / import quantity, and properly distribute to all levels of medical institutions and pharmacies to fully meet the demand for clinical end use drugs.
In addition, to properly handle the issue of drug price adjustment, the Central Health Insurance Administration of the Ministry of Health and Welfare intends to implement the "Universal Health Insurance Cost Distribution Target System (DET)" in April this year, which will adjust the number of drug prices and adjust the quota in a suitable manner, taking into account factors such as the epidemic, the Russian-Ukrainian war and inflation.
In terms of medium-term strategy, Wang said that he will establish a permanent drug shortage treatment center and optimize drug supply information transmission.
In order to speed up the handling of drug shortage incidents, we will adopt dedicated personnel and cross-departmental cooperation to develop drug shortage prevention policies to prevent drug shortage in advance, strengthen cross-departmental data integration and proactive monitoring to detect drug shortage incidents at an early stage, and intervene early through cross-departmental cooperation to stabilize drug supply.
At the same time, the Food and Drug Administration (FDA) continues to disseminate drug supply and alternative drug information through various channels. In addition to posting on the “Drug Supply Information Platform ”, the FDA will notify medical institutions and pharmacies through VPN, and weekly letters to relevant medical associations and public associations to inform members. Management system.
In the long-term strategy section, it includes reviewing the current health insurance drug pricing policy and encouraging the production of domestically manufactured generic drugs.
Wang Bi-sheng pointed out that in the review of the current health insurance drug price policy, including the development of the price protection of indicative drugs, drug price review for the lack of drugs; start the review of drug expenditure target (DET), plan the establishment of a risk control mechanism, plan the national unified procurement trial plan; comprehensively review the health insurance drug price policy, give an appropriate price protection mechanism for necessary drugs, and also target the patent period. To encourage the production of domestic manufacturers to ensure that when there is a shortage of original pharmaceutical products, there are domestic famous drugs to respond.
Wang also stressed that the Food and Drug Administration has set up a "Drug Supply Information Platform" (https: / / dsms.fda.gov.tw /), reporting hotline (02) 27878249. If medical institutions and pharmacies have any shortage of drugs, they can go to the platform for enquiry or notification, and the department will deal with it immediately.
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The FDA disseminates drug supply and alternative information through channels like the "Drug Supply Information Platform", VPN, and weekly letters to medical institutions and pharmacies.

The White House proposed spending $3.26 billion to $5.11 billion over the next decade to address the nation's drug shortage.

Title:

Content: Meitu
The first quarter of the United States serious drug shortage 323 drugs urgent cancer patients also have to be diverted and rationed!
CHU HENG NETWORK NEWS CENTER 2024-04-16 10: 42
According to the latest data from the American Society of Health System Pharmacists (ASHP) and the Utah Center for Drug Information Services, a total of 323 drugs in the United States were in severe shortages in the first quarter of this year, surpassing the record of 320 in 2014.
Among the drugs affected are the widely used diabetes drugs Ozempic and Mounjaro, the allergy treatment drug adrenaline, the common antibiotic amoxicillin for children, chemotherapy drugs and injections commonly used in hospitals in intensive care.
ASHP CEO Paul Abramowitz said in a statement that almost all categories of drugs are facing shortages, with non-patented sterile injectable drugs, including cancer chemotherapy drugs, and emergency drugs stored in hospital emergency vans and operating areas, the shortage of such drugs is the most worrying.
According to the American Cancer Society, chemotherapy is one of the top five drugs most affected by the shortage, which threatens to have a devastating impact on patients, and some hospitals and clinics say doctors have had to divert patients to ration their medications because of a shortage of some chemotherapy drugs.
In addition, ASHP noted that the continued nationwide shortage of ADHD drugs is “a problem for clinicians and patients. ”
The shortage of popular drugs is even more acute, with Mounjaro, the diabetes drug known as the “slimming pill ”, already in dire straits.
In response, Lilly said that the “unprecedented surge in demand ” for Mounjaro and its similar drug Zepbound has led to a shortage in the market, which the company is struggling to cope with.
Lilly is ramping up investments to boost production at Mounjaro and Zepbound in the second half of 2024.
The company said it expects intermittent supply disruptions in the near term due to unprecedented demand.
How to cure the drug shortage
The last major “drug shortage ” in U.S. history occurred in 2014, and it has only been alleviated in the years since.
Since 2021, the drug shortage situation seems to be increasing, and scholars in the field of medical health and economics in the United States believe that the reason for most drug shortages in the United States is the fragmentation of the drug supply chain.
The White House this month proposed spending between $3.26 billion and $5.11 billion over the next decade to help address the nation ’ s drug shortage.
The bill requires approval and funding from the U.S. Congress.
U.S. researchers and policymakers believe that a complete solution to the “drug shortage ” may require changes to the business model of the U.S. pharmaceutical industry, including measures to increase the price of generic drugs to attract more drug manufacturers.
Policymakers recommend giving the FDA more power to access more information about drug shortages and impending shortages.
Currently, the FDA relies primarily on phone calls to manufacturers asking if they can increase their supply to understand the situation.
The American Society of Health System Pharmacists said it is working with the federal government to advise the government on measures to address the drug shortage, including that Congress should require manufacturers to be more transparent on any supply chain issues and encourage more diversity in supply chains.
According to Abramowitz, “The federal government still has a lot of work to do to fundamentally address drug shortages, and the American Society of Health System Pharmacists will continue to engage regularly with policymakers to guide them in drafting and passing new legislation to address drug shortages and continue to advocate vigorously for proven solutions on behalf of our members. ”

The WHO reports that 28 of 35 countries lack sufficient penicillin-type drugs, according to Lisa Hedman.

Title:

Content: Experts have recorded a shortage of antibiotics in the world due to the increase in the number of infectious diseases.
On December 21, writes the Financial Times with reference to the head of the group of the World Health Organization (WHO) for the supply of medicines and ensuring access to them Lisa Hedman, reports Day.Az.
Twenty-eight of the 35 countries for which WHO collects data are deficient in penicillin-type drugs.
In the United States and Canada complained about the lack of amoxicillin.
Less is known about the situation in poor or small countries, according to Hedman.
It is noted that in addition to the difficulties experienced by pharmaceutical manufacturers in the pandemic, the current situation is complicated by high energy prices, and this leads to a decrease in profits of companies.
In addition, countries, according to Hedman, did not expect that in the first year without masks, respiratory infections would hit the population so hard.
In addition to antibiotics, pharmacists also complain about the lack of painkillers, drugs for tuberculosis and drugs for skin infections.

Complaints about amoxicillin shortages were reported in the US and Canada, with less information available on poorer or small