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Earth Science

Cheetahs Heading Towards Extinction as Population Crashes (bbc.com) 120

The sleek, speedy cheetah is rapidly heading towards extinction according to a new study into declining numbers. From a report on BBC: The report estimates that there are just 7,100 of the world's fastest mammals now left in the wild. Cheetahs are in trouble because they range far beyond protected areas and are coming increasingly into conflict with humans. The authors are calling for an urgent re-categorisation of the species from vulnerable to endangered. Cheetahs in Asia have been essentially wiped out. A group estimated to number fewer than 50 individuals clings on in Iran. [...] In Zimbabwe, the cheetah population has fallen from around 1,200 to just 170 animals in 16 years, with the main cause being major changes in land tenure.
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Cheetahs Heading Towards Extinction as Population Crashes

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  • by Quakeulf ( 2650167 ) on Tuesday December 27, 2016 @09:05AM (#53559381)
    The main reason animals get extinct is human presence. We are a bigger threat to wildlife than even nuclear fallout.
    • So what is the solution?
      • Start sending lots of birth control devices (condoms, IUDs, birth control shots, ect) to Africa (where most of the world's population growth is going on), and start some education/propaganda efforts to convince them that having one or two kids per woman will result in a higher quality life for them. As it stands now, most estimates are that Africa will have 4 billion people by 2100, versus the 1 billion they have now. I don't see much of the African megafauna serving that much of a population boom.
        • Why Africa? More than 1 out of 3 people are Indian or Chinese.
          • by DreadCthulhu ( 772304 ) on Tuesday December 27, 2016 @10:36AM (#53559865)
            Africa is where most of the population growth is coming from, so that is where it makes sense to focus efforts on awareness of birth control, and get people to chose quality of children over quantity of children. China, for example, doesn't need any additional birth control programs since their birth rate is already below replacement level. The UN estimates China's population will decline from its current 1.4 billion to 1 billion by 2100. The UN also estimates India will grow from 1.3 billion now to 1.6 billion by 2100. By contrast, Africa is estimated to grow from its current 1 billion people to over 4 billion by 2100.
            • by Anonymous Coward

              You don't need that as much as you need a higher standard of living. There's great empirical evidence that family income as low as $4k/yr can get to replacement-rate fertility, whereas "awareness of birth control" and "chos(ing) quality of children over quantity of children" is paternalistic, makes broad assumptions about millions of individuals, and spends money that could otherwise contribute toward raising the standard of living.

          • x is not dx/dt in the general case.

        • by Stephan Schulz ( 948 ) <schulz@eprover.org> on Tuesday December 27, 2016 @09:41AM (#53559523) Homepage

          Start sending lots of birth control devices (condoms, IUDs, birth control shots, ect) to Africa...

          To quote Christopher Hitchens: "[The cure to poverty is] colloquially called the empowerment of women" [youtube.com].

          • by MightyMartian ( 840721 ) on Tuesday December 27, 2016 @11:27AM (#53560179) Journal

            A fair number of posters here despise women, and view anyone who advocates for female empowerment as an SJW who needs to be derided, trolled, threatened with rape, or any other mechanism possible to silence anyone with a vagina.

            • A fair number of posters here despise women, and view anyone who advocates for female empowerment as an SJW who needs to be derided, trolled, threatened with rape, or any other mechanism possible to silence anyone with a vagina.

              I have a hard time coming up with somebody less fitting the SJW stereotype than Hitchens. But I'm quite sure he would adopt the term with aplomb.

      • So what is the solution?

        You're gonna smack me, but again - nature.

  • When the article says changes in land tenure in Zimbabwe, that means the racist thug Mugabe seizing lands from whites, and passing it out to his political cronies, who apparently, in addition to being shitty farmers are also bad at wild life management.
  • It is sad that it is apparently difficult to breed cheetahs in captivity - they need large open spaces to run and do their courtship rituals. Which is particularity bad, because they actually are one of the easier wild animals to tame, and would be fairly easy to turn into pets (and thus in no danger of extinction) if that breeding issue where solved. I know I would love a pet cheetah.
  • by haruchai ( 17472 ) on Tuesday December 27, 2016 @09:35AM (#53559509)

    http://cheetah.org/about-the-c... [cheetah.org]

    About 12,000 years ago, a mass extinction event occurred that eliminated 75% of the world’s large mammal species. Fortunately, a handful of cheetahs managed to survive this extreme extinction event and were able to restore the world’s population of cheetahs.

    This event caused an extreme reduction of the cheetah’s genetic diversity, known as a population bottleneck, resulting in the physical homogeneity of today’s cheetahs. Poor sperm quality, focal palatine erosion, susceptibility to the same infectious diseases, and kinked tails characteristic of the majority of the world’s cheetahs are all ramifications of the low genetic diversity within the global cheetah population

    • Third time's the charm [wikipedia.org].

      A genome study concluded that cheetahs experienced two genetic bottlenecks in their history, the first about 100,000 years ago and the second about 12,000 years ago, greatly lowering their genetic variability. These bottlenecks may have been associated with migrations across Asia and into Africa (with the current African population founded about 12,000 years ago), and/or with a depletion of prey species at the end of the Pleistocene.

      As cool as cheetahs are, it would seem their geneti

      • by haruchai ( 17472 )

        Interesting....did not know there once was a cheetah-like feline in NorthAm. Weak design or not, it'll be a damn shame if they do die out, especially if it's because of humans. Perhaps one day many years from now we can have cloned ones - or perhaps we'll eventually have to clone every damn creature except raccoons, squirrels, rats, pigeons & gulls.

      • by Anonymous Coward

        The cheetahs are likely very specialized in terms of pray. They are not social like lions and it maybe that if a certain sized prey animals disappear from the ecosystem, so do the cheetahs. The entering(s) of the interglacial periods significantly altered the whole ecosystem everywhere, killing off many other species. In that sense, it is not "fair" to put the cheetah into the failed experiment basket quite so readily based on those natural events.

  • by PopeRatzo ( 965947 ) on Tuesday December 27, 2016 @10:11AM (#53559715) Journal
  • by Applehu Akbar ( 2968043 ) on Tuesday December 27, 2016 @10:32AM (#53559829)

    For all these years I thought this was just an expression.

  • A cheetah is genetically more than 99% identical to other cheetahs because they suffered not one, but TWO population bottlenecks where the population was wiped out but for a small number of breeding pairs - the first about 100k years ago, the second about 10k years ago. This leaves them all basically as related as identical twins.

    Their doom isn't necessarily humans (at least, not any more than any other large predator) it's their lack of genetic diversity that means a local population can be devastated by

    • Re:Meh (Score:4, Funny)

      by MightyMartian ( 840721 ) on Tuesday December 27, 2016 @11:28AM (#53560185) Journal

      Thank goodness! Now we can get back to destroying large areas of land populated by wild animals!

    • Re:Meh (Score:5, Insightful)

      by Vegan Cyclist ( 1650427 ) on Tuesday December 27, 2016 @11:43AM (#53560289) Homepage

      "and it's only peripherally due to humans"

      Not quite, if humans were out of the equation, they'd probably be doing a lot better, and their limited genetic diversity would probably continue to grow. We've most certainly limited their potential and influenced their chances of survival negatively. Yes, the cards were stacked against them, and humans have burned most of the deck to boot.

      • You missed the "...not any more than any other large predator..." part?

    • This leaves them all basically as related as identical twins.

      They're definitely going to go extinct then, because either they're all male or all female.

  • I'm all for conservation of species, but it seems to me this is just the symptom. Save the cheetah, then what next? Many species are being driven to extinction as well. You can artificially inflate the numbers by pouring lots of money into breeding programs like the Chinese have done with pandas, but that does nothing for the underlying causes.
  • As the article hints, the issue here isn't really raw population, its land.

    Mating for Cheetahs involves miles and miles of chasing. If they don't have that kind of grassland space available to them, there will be no more cheetahs.

    This is also why they could not be domesticated (even though they are quite tamable), and cannot be bred in captivity. Zoos cannot save them. If they go in the wild, they are gone.

    • Rig up a cheetah make-out pad with a treadmill/conveyor belt thing.

      Do you know how tiring it is doing all the thinking?

  • It's not easy being cheesy.

"All the people are so happy now, their heads are caving in. I'm glad they are a snowman with protective rubber skin" -- They Might Be Giants

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