tailieunhanh - Zoos and Animal Welfare Phần 7

Tham khảo tài liệu 'zoos and animal welfare phần 7', ngoại ngữ, anh ngữ phổ thông phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Percentage of World s Mammals Threatened with Extinction Percentage of World s Birds Threatened with Extinction Taken from Jeffrey p. Bonner Sailing with Noah. Missouri University of Missouri Press. Evading Extinction AZA s Species Survival Plan SSP breeding programs were instrumental in saving the Guam rail Attwater s prairie chicken California condor and Micronesian kingfisher from extinction. Each of these bird species were essentially extinct in the wild however several AZA zoos took in pairs of the birds from the wild and breeding them establishing a stable population and reintroducing the birds back to the wild. Breeding the Black-Footed Ferret Twenty-five years ago AZA-accredited zoos captured and bred the last remaining black-footed ferrets in an attempt to prevent their extinction. Today the black-footed ferret population numbers approximately 1 000 of which more than half were reared in AZA institutions. Working alongside other AZA institutions Cheyenne Mountain Zoo has led the charge in the Black-Footed Ferret Species Survival Plan. In 2006 24 kits were born at the zoo and seven have been sent to the . Fish and Wildlife Service USFWS National Black-Footed Ferret Conservation Center in preparation for their release into the wild. Saving the Frogs Hundreds of frog toad salamander and other amphibian species are on the verge of extinction due to a devastating disease caused by the chytrid fungus. Scientists from the Smithsonian National Zoological Park played a large role in identifying the chytrid fungus as the culprit. Although individual frogs can be treated for chytrid there is no way to remove it from the environment. To save frogs AZA zoos and aquariums are collecting healthy pairs and bringing them into zoos to breed creating a hedge against extinction. Reintroducing the White-Winged Guan The white-winged guan is a critically endangered bird native to the arid valleys of northwest Peru. Fewer than 200 individuals Captive Breeding Programs .

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