Monday December 10, 2018
Home World Big Cat Speci...

Big Cat Species face the Same Challenges as their Ancestors that went extinct towards the end of the last Ice Age: Study

0
//
A Tiger, Wikimedia
Republish
Reprint

London, May 11, 2017: Big cat species, especially African lion and Sunda clouded leopard, face the same challenges as their ancestors that went extinct towards the end of the last Ice Age, a new study says.

The team researched the cause of extinction of seven large cats from the Ice Age including four different types of sabre-toothed cats.

NewsGram brings to you current foreign news from all over the world.

The seven big cats that went extinct during that period are those which lost the greatest proportion of their prey, showed the study published in the journal Ecography.

Using a new global database of felid diets called FelidDiet, the researchers assessed whether Ice Age extinction trends could be applied to populations of big cat species now.

They discovered that if all the currently threatened and declining prey species within big cat natural ranges were to go extinct, only 39 percent of the African lion’s prey and 37 percent of Sunda clouded leopard’s would remain.

NewsGram brings to you top news around the world today.

The researchers believe that if this prey loss trend continued, this would pose a high risk of extinction to these two big cat species in particular.

Prey decline puts tiger, leopard and cheetah at risk too, the researchers said.

“If primary big cat prey continues to decline at such a rate, then big cats, including lion, Sunda clouded leopard, tiger and cheetah, are at high risk of extinction,” said Chris Sandom from the University of Sussex in Britain.

“The Churchillian aphorism that those that fail to learn from history are doomed to repeat it was painfully in mind when we saw how many of the prey of lions and in East Africa and of clouded leopards in Indo-Malaya look set to go down the same drain which their counterparts in other regions have already been flushed,” said Professor David Macdonald, Director of the University of Oxford’s Wildlife Conservation Research Unit.

“We need to buck this Ice Age trend once and for all and to reinforce the urgent need for governments to protect both big cat species and their prey,” Sandom added. (IANS)

Click here for reuse options!
Copyright 2017 NewsGram

Next Story

Neanderthals And Sapiens Both Faced Risks

But the new study is not the final word on Neanderthal trauma

0
Neanderthal
A 3D-printed model of a Neanderthal man stands at the stand of FIT AG during a media presentation at the international fairs FabCon 3.D and Rapid.Tech, Germany. VOA

Life as a Neanderthal was no picnic, but a new analysis says it was no more dangerous than what our own species faced in ancient times.

That challenges what the authors call the prevailing view of our evolutionary cousins, that they lived risky, stressful lives. Some studies have suggested they had high injury rates, which have been blamed on things like social violence, attacks by carnivores, a hunting style that required getting close to large prey, and the hazards of extensive travel in environments full of snow and ice.

While it’s true that their lives were probably riskier than those of people in today’s industrial societies, the vastly different living conditions of those two groups mean comparing them isn’t really appropriate, said Katerina Harvati of the University of Tuebingen in Germany.

Neanderthal model
Neanderthal model. Reconstruction of a Neanderthal (Homo neanderthalensis) based on the La Chapelle-aux-Saints fossils. Neanderthals inhabited Europe and western Asia between 230,000 and 29,000 years ago. They did not use complex tools but had mastery of fire and built shelters. It is thought that they had language and a complex social structure, living in small family groups and hunting for food. It is not known why Neanderthals became extinct, but one theory is that they were outcompeted by modern humans (Homo sapiens). Reconstruction by Elisabeth Daynes of the Daynes Studio, Paris, France.

A better question is whether Neanderthals faced more danger than our species did when we shared similar environments and comparable lifestyles of mobile hunter-gatherers, she and study co-authors say in a paper released Wednesday by the journal Nature.

To study that, they focused on skull injuries. They reviewed prior studies of fossils from western Eurasia that ranged from about 80,000 to 20,000 years old. In all they assessed data on 295 skull samples from 114 individual Neanderthals, and 541 skull samples from 90 individuals of our own species, Homo sapiens.

Injury rates turned out to be about the same in both species.

Also Read: Neanderthal Genes Helped Early Humans Beings to Fight Flu, Hepatits

That questions the idea that the behavior of Neanderthals created particularly high levels of danger, Marta Mirazon Lahr of Cambridge University wrote in an accompanying commentary.

But the new study is not the final word on Neanderthal trauma, she wrote. It didn’t include injuries other than to the skull. And scientists still have plenty of work to do in seeking the likely cause of injuries and evidence of care for the injured, which could give insights into the behavior of both Neanderthals and ancient members of our species, she wrote. (VOA)