Captive Propagation for Recovery of Species Under Esa Hearing Before the Subco
Captive Propagation for Recovery of Species Under Esa Hearing Before the Subco
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In our eReader you can find the full English version of the book. Read Captive Propagation for Recovery of Species Under Esa Hearing Before the Subco Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Captive Propagation for Recovery of Species Under Esa Hearing Before the Subco
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Although captive-raised Whooping Cranes are now being released into the wild in Florida, the captive population is still being periodically supplemented from eggs collected in the wild (Derrickson 1987, Lewis 1990). Similarly, the breeding program for the Puerto Rican Parrot (Amazona vittata) has been underway for some 20 years, yet has never achieved full viability even though the captive population now exceeds 50 birds achieved largely through the infusion of wild-origin young. Despite the ef...forts of a succession of capable biologists and aviculturists, and the application of propagation and husbandry procedures successfully used with other closely-related species, reproduction in captivity has rarely exceeded six fledglings per year, and the population is still not self- sustaining. Basic causes of poor reproduction have not been surely identified. Although fertility of eggs has been a chronic problem (Brock and White 1992), the extent to which low fertility may trace to behavioral or genetic limitations remains uncertain.
What to read after Captive Propagation for Recovery of Species Under Esa Hearing Before the Subco?
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To quickly assess the difficulty of the text, read a short excerpt:
Although captive-raised Whooping Cranes are now being released into the wild in Florida, the captive population is still being periodically supplemented from eggs collected in the wild (Derrickson 1987, Lewis 1990). Similarly, the breeding program for the Puerto Rican Parrot (Amazona vittata) has been underway for some 20 years, yet has never achieved full viability even though the captive population now exceeds 50 birds achieved largely through the infusion of wild-origin young. Despite the ef...forts of a succession of capable biologists and aviculturists, and the application of propagation and husbandry procedures successfully used with other closely-related species, reproduction in captivity has rarely exceeded six fledglings per year, and the population is still not self- sustaining. Basic causes of poor reproduction have not been surely identified. Although fertility of eggs has been a chronic problem (Brock and White 1992), the extent to which low fertility may trace to behavioral or genetic limitations remains uncertain.
What to read after Captive Propagation for Recovery of Species Under Esa Hearing Before the Subco?
You can find similar books in the "Read Also" column, or choose other free books by United States Congress House Committee On Merch to read onlineMoreLess
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