News tagged with captive populations
Recovery efforts not enough for critically endangered Asian vulture
Biology /
Sep 05, 2008 |
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Captive breeding colonies of a critically endangered vulture, whose numbers in the wild have dwindled from tens of millions to a few thousand, are too small to protect the species from extinction, a University ...
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Conserving biodiversity or plundering genetic diversity? What is captive breeding doing to fish populations?
Biology /
Dec 11, 2008 |
4.5 / 5 (4) |
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Human impacts on the environment have reduced populations of wild species to dangerously low levels. Nowhere is this more apparent than in worldwide fisheries, where thanks to overfishing and habitat destruction, countless ...
Serious disease in pet lizards caused by new bacteria
Biology /
Sep 19, 2008 |
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Skin infections are common in pet lizards and can lead to fatal organ disease and septicaemia. Infections are particularly risky in lizards that are bred in captivity for release into the wild, as they can spread into the ...
Do zoo programs help save endangered species?
Apr 13, 2009 |
3.7 / 5 (3) |
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Do zoos have serious programs to save endangered species, besides putting a few captives on display for everyone to see? (Kelly Traw, Seattle)
Land iguanas under continuing threat on Galapagos archipelago
Biology /
Nov 26, 2008 |
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The Galápagos Islands, which provided impetus and inspiration for Charles Darwin's seminal work, "On the Origin of Species", are home to unique populations of reptiles. Since the time of man's first visit in the 16th century ...
Hatchery fish may hurt efforts to sustain wild salmon runs
Jun 10, 2009 |
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Steelhead trout that are originally bred in hatcheries are so genetically impaired that, even if they survive and reproduce in the wild, their offspring will also be significantly less successful at reproducing, according ...
First live rhinoceros birth from frozen-thawed semen
Biology /
Nov 13, 2008 |
5 / 5 (4) |
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There may be less than 20,000 rhinoceros in the world, with one species perhaps already extinct and another with possibly only four animals remaining in the wild. As the populations of these animals age and become infirm, ...
Captive breeding introduced infectious disease to Mallorcan amphibians
Biology /
Sep 22, 2008 |
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A potentially deadly fungus that can kill frogs and toads was inadvertently introduced into Mallorca by a captive breeding program that was reintroducing a rare species of toad into the wild, according to a new study published ...
California Academy of Sciences becomes first aquarium in US to breed dwarf cuttlefish
Nov 12, 2009 |
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Anchored to an algae-covered rock in a 120-gallon tank at the California Academy of Sciences' Steinhart Aquarium, a cluster of inky-colored cuttlefish eggs is beginning to swell—evidence of success for the ...
Tasmanian devils listed as endangered in Australia
May 22, 2009 |
5 / 5 (3) |
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(AP) -- The Tasmanian devil, a snarling fox-sized marsupial made notorious by its Looney Tunes cartoon namesake Taz, was listed in Australia as an endangered species Friday because of a contagious cancer ...
Frogs with disease-resistance genes may escape extinction
Biology /
Jul 16, 2008 |
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As frog populations die off around the world, researchers have identified certain genes that can help the amphibians develop resistance to harmful bacteria and disease. The discovery may provide new strategies to protect ...
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