send more elephants
Aug. 23rd, 2005 06:09 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
alonewiththemoonThere are a group of people who want to re-establish our long-lost megafauna to the North American continent, because human beings owe it to them for having wiped them out in the first place (leaving climate change aside, of course). How does one do this? By establishing preserves full of elephants, cheetahs, African lions, Przewalski's horses, etc., of course. Pretending for the moment that of course all these animals would behave analogously to their extinct counterparts, there's the non-trivial fact that these animals are not adapted to the North American climate, and that there is in fact controversy about keeping elephants in zoos in northern climes, where at least they have heated stables for shelter. And never mind the fact that even the animals that do live here now that most resemble these animals that they'd like to introduce--bison, mountain lions, elk, etc.--are not doing so well as it is. If bison can't migrate, how on earth are elephants supposed to? If there is already conflict between suburbanites and mountain lions, why add bigger and stronger lions, who by the way might drive the native ones into extinction through competition?
If people would put half the energy into sensible things that they do into ridiculous things, the world would be a much improved place. Anyway, the Reuters article about this project is below the cut, for anyone who cares to read it.
Re-wilding of America proposed as rescue measure
August 22, 2005
Scientists are proposing reintroducing large mammals such as elephants, lions, cheetahs, and wild horses to North America to replace populations lost 13,000 years ago.
The scientists say that not only could large tracts of North America act as breeding sanctuaries for species of large wild animals under threat in Africa and Asia, but such ecological history parks could be major tourist attractions.
''Africa and parts of Asia are now the only places where megafauna are relatively intact, and the loss of many of these species within this century seems likely," the team, led by Josh Donlan from New York's Cornell University, said.
''Given this risk of further extinction, re-wilding of North American sites carries global conservation implications," the team wrote in Wednesday's issue of the science journal Nature.
It said large mammals were common across all continents until the Late Pleistocene wipeout that hit North America hardest and handed the world to smaller species. The largest mammals in the United States today are bison.
The Pleistocene epoch lasted from about 1.65 million years ago to 10,000 years ago.
''Large carnivores and herbivores often play important roles in the maintenance of biodiversity, and thus many extinct mammals must have shaped the evolution of the species we know today," the scientists wrote.
They said the pronghorn antelope's remarkable turn of speed must be due at least in part to the presence of the now extinct predatory American cheetah alongside it on North America's grasslands.
Reintroducing the modern relatives of the Late Pleistocene losers to North America could spark fresh interest in conservation, contribute to biodiversity, and begin to put right some of the wrongs caused by human activities.
''Establishing Asian asses and Przewalski's horse in North America might help prevent the extinction of these endangered species and would restore equid species to their evolutionary homeland," the scientists wrote.
They proposed a second phase that would include reintroducing African cheetahs, lions and Asian and African elephants to large private parks.
''Free-roaming, managed cheetahs in the southwestern United States could save the fastest carnivore from extinction, restore what must have been strong interactions with pronghorn and facilitate ecotourism as an alternative for ranchers.
''Managed elephant populations could similarly benefit ranchers through grassland maintenance and ecotourism," they wrote, adding that reintroducing lions would represent the pinnacle of the Pleistocene re-wilding of North America.
They admitted the plan would be controversial but said it was a far better option than simply accepting the terminal decline of some of the world's most impressive species due to human encroachment and global warming.
''Pleistocene re-wilding is an optimistic alternative," they wrote. ''The obstacles are substantial and the risks are not trivial, but we can no longer accept a hands-off approach to wilderness preservation."
REUTERS
Idiots.
If people would put half the energy into sensible things that they do into ridiculous things, the world would be a much improved place. Anyway, the Reuters article about this project is below the cut, for anyone who cares to read it.
Re-wilding of America proposed as rescue measure
August 22, 2005
Scientists are proposing reintroducing large mammals such as elephants, lions, cheetahs, and wild horses to North America to replace populations lost 13,000 years ago.
The scientists say that not only could large tracts of North America act as breeding sanctuaries for species of large wild animals under threat in Africa and Asia, but such ecological history parks could be major tourist attractions.
''Africa and parts of Asia are now the only places where megafauna are relatively intact, and the loss of many of these species within this century seems likely," the team, led by Josh Donlan from New York's Cornell University, said.
''Given this risk of further extinction, re-wilding of North American sites carries global conservation implications," the team wrote in Wednesday's issue of the science journal Nature.
It said large mammals were common across all continents until the Late Pleistocene wipeout that hit North America hardest and handed the world to smaller species. The largest mammals in the United States today are bison.
The Pleistocene epoch lasted from about 1.65 million years ago to 10,000 years ago.
''Large carnivores and herbivores often play important roles in the maintenance of biodiversity, and thus many extinct mammals must have shaped the evolution of the species we know today," the scientists wrote.
They said the pronghorn antelope's remarkable turn of speed must be due at least in part to the presence of the now extinct predatory American cheetah alongside it on North America's grasslands.
Reintroducing the modern relatives of the Late Pleistocene losers to North America could spark fresh interest in conservation, contribute to biodiversity, and begin to put right some of the wrongs caused by human activities.
''Establishing Asian asses and Przewalski's horse in North America might help prevent the extinction of these endangered species and would restore equid species to their evolutionary homeland," the scientists wrote.
They proposed a second phase that would include reintroducing African cheetahs, lions and Asian and African elephants to large private parks.
''Free-roaming, managed cheetahs in the southwestern United States could save the fastest carnivore from extinction, restore what must have been strong interactions with pronghorn and facilitate ecotourism as an alternative for ranchers.
''Managed elephant populations could similarly benefit ranchers through grassland maintenance and ecotourism," they wrote, adding that reintroducing lions would represent the pinnacle of the Pleistocene re-wilding of North America.
They admitted the plan would be controversial but said it was a far better option than simply accepting the terminal decline of some of the world's most impressive species due to human encroachment and global warming.
''Pleistocene re-wilding is an optimistic alternative," they wrote. ''The obstacles are substantial and the risks are not trivial, but we can no longer accept a hands-off approach to wilderness preservation."
REUTERS
Idiots.
