People are involved in the herding of the largest animals in the world just over the past. extinction, and the drunken need is an unparalleled separation for meat.
It's a warning, and it's a # 39; from the first analysis to look at how people have affected the "megafauna" of the world.
Combining more than 300 species of extreme unusual vertebrates – including poles, blue whales, hippos, saltwater crocodiles, strokes – the results of the " showing the future to our shared environment.
Everyone knows that at least 200 species of megafauna are falling in numbers, with over 150 being shaken to disappear.
"Our findings suggest that we are involved in eating megafauna to be extinct," said author William Ripple, an ecological expert at the State of Oregon State.
"In the future, 70% will drop down an additional population and 60% of the species may become extinct or rare."
If people choose to continue on this route, the loss may cause a problem as we know it. Biodiversity is the life of our life; maintains all the ecosystems in the world, but after thousands of unexplored activities, people now face an environmental crisis.
Imagine a game of Jenga. With the extra pieces that we remove, the whole system will be more unstable, but to expand its & # 39; of emerging danger.
"Biodiversity maintenance is essential to the structure and ecosystem system, but it is endangered by a population diminution and a range of geographic range left around one unit of the world's species that are at risk of separation, "the authors have a & # 39; writing.
The problem has been building for a while now.
Occasionally a late Pleistocene, over a hundred thousand years ago, people have spoiled the biodiversity of the world, which extends greatly after its death; converted into the wilderness, according to an unprecedented level in the previous 65 million years.
But in the last 500 years or so, things have begun to improve, and scientists are worried. Today, every class of megafauna is the risk of human hunting.
Of course, of the endangered megafauna species, 98 per cent were at risk of simply harvesting for a & # 39; throwing meat or parts of the body. "
Not only do these great creatures keep more meat and be more clever, they are more abundant than smaller species and they are more and less; much slower.
This causes extreme abrasives at risk of extinction, not only from hunting, but also from a "# 39; the decline of their customs.
"Larger megafauna species are at risk and a higher percentage of people are increasingly lower than the rest of the remote species together", and Ripple definition.
So although there is a small, cooperative biomass of megafauna, their ongoing losses already alter the structure and function of our ecosystems, in ways that we still find.
In the last 250 years, we know that nine megafauna species have completely disappeared, or have disappeared in the wild. The most vulnerable animals are at land.
This is undoubtedly because people can reach it easier. For example, in 2012, two species of extinct wildcats, and two deer species.
Sea creatures have been a bit better. Only 27% of the species are considered as a threat, but there are also more than two dozen we do not know enough about it.
Bony fish, like sharks, shields and rays at the top of the list, are more at risk more than any other marine body.
But at the end, these great creatures were the ones that would be. serving the land and sea that saw the worst results. Of all mega amphibians, there is only one species left on Earth.
Improving 40 kilograms and a & # 39; stretching up to 1.8 meters, the Chinese Giant Salamander (Andrias davidianus) sometimes called living fossils, one of the few people who lived in a family dating 170 million years ago.
They thought he was hardworking in Asia, and he is now in danger and scientists say it's only a bit of time before he does.
It is difficult that more creatures are managed in the same way, the authors want us to "have our enhanced capacities as hunters" in line with "the ability to consider, to judge, and to develop our own behavior. "
Despite this, we may eat the last of the megafauna of our planet.
"Keeping the remaining megafauna can be difficult and difficult," said Ripple.
"There will be economic arguments, as well as cultural and social barriers. But if we do not consider, judge and develop our behaviors, increase our abilities as hunters may We use many of the last of the megafauna of the Earth. "
This study was published Conservation LettersSouth Westerly