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The Scientific Bases for the Preservation of the Hawaiian Crow (1992) / Chapter Skim
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5 RELEVANT PRECEDENTS IN ENDANGERED SPECIES PRESERVATION
Pages 68-78

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From page 68...
... win manipulative, or "clinical," techniques aimed at immediate enhancement of fecundity and sunrivorship. Manipulative techniques that have been successfully applied In recovery programs range from such in situ measures as predator control, nest-site provisioning, reproductive manipulation, and supplemental feeding to ex situ measlires such as hansIocation, captive breeding and reintroduction, and cryopresenrabon of gametes and embryos CTemple, 1977b; Cade, 1986a, 1988; Conway, 1988; Seal, 1988)
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From page 69...
... Guam and Rota a From Collar and Andrew, (1988~; International Union for the Conservation of Nature Red Data Book, (1990~.
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From page 70...
... 1992) a T=translocation of wild eggs, young, or adults; CR=captive rearing of wild~rigin stock; CB=captive breeding; R=release of young; H=hacking of young; F=fostering of eggs or young; CF= cross-fostering of eggs or young.
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From page 71...
... Common and Scientific Names; Locality Andean Condor Vultur gryphus; Peru, Colombia, United States Bald Eagle, HaiZiaeetus le ucocephalus; United States White-Tailed Sea Eagle, Hailiaeems albicilla; Europe Bearded Vulture, Oypaetus barbatus aureus; Europe Griffon Vulture. C~ps,fidvus; Europe Mauritius Kestrelb, Falco punctatus; Mauritius Seychelles Kestrel, Falco araea; Praslin Island, Seychelles Peregrine Falcon, Falco peregr~nus; United States, Europe Masked Bobwhite, CoZinus wrginianus ridgw~yi; United States Cheer Pheasant, Catreus wallichi; Pakistan Mississippi Sandhill Crane, Grus car7adensis pu7la; United States Whooping Crane, Grus americana; United States Me~ods CB/H CR,CB/F,H CB/H CB/H CB/H CR,CB/H,F T CR,CB/H,F,CF CB/F CB/R CB/H,F CB/CF,H 71 References Wallace and Temple (1987)
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From page 72...
... (1991a) Lord Howe Island Woodhenb, Tncholimnas sylvestris; Lourie-Fraser (1983)
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From page 73...
... Initial proposals to trap condors for radiotelemetry and captive propagation brought forth a large opposition. Through the effective use of the press and political pressure, opponents sought to stop all intensive research and ~hands-on" management activities.
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From page 74...
... Field studies soon revealed Mat one of the principal causes of mortality was lead poisoning that resulted from the ingestion of lead bullet fragments in deer carcasses, and the sudden loss of six wild adults during the winter of 1984-1985 convinced many that all the wild birds should be brought into captivity. That proposal culminated in an expensive lawsuit against the USFWS by the National Audubon Society.
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From page 75...
... Takahe (Nolo this mantellD Populations of this flightless gallinule, endemic to the alpine tussock grasslands of the Murchison Mountains on the South Island of New Zealand, declined precipitously as a result of predation by introduced mammals, competition win introduced deer for its principal food plant, and egg predation by Wekas (Gallirallus australis greyi) (Williams and Given, 1981~.
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From page 76...
... Chatham Island Black Robin (Peiroica ~Kzvers`D Once widespread throughout the Chatham Islands of New Zealand, the Black Robin disappeared from all the larger islands after European colon~zabon, until only a remnant population of 25 birds survived on Little Mangere Island. As a result of habitat degeneration in the 1970s, the population declined from IS in 1972 to seven birds (two females and five males)
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From page 77...
... . Conclusions Me recovery programs described here demonstrate a number of important points Hat are especially relevant to preservation efforts for the 'Alala: ~ Wild populations of many threatened species have declined to extremely low numbers, but have responded positively to well-conceived and carefully implemented progrmns.
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From page 78...
... ~ The geographic distributions of several endangered species that had been reduced to single, relict populations have been expanded through deliberate releases into suitable habitat either within or outside their historical ranges. Some species, such as the Mauritius Kestrel, have even been induced to colonize successfully habitats that differ from their original ones.
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Key Terms

  • wild population
  • recovery programs
  • california condor
  • captive breeding
  • endangered species

  • lord howe
  • suitable habitat
  • chatham island
  • howe island
  • wildlife service

  • breeding pairs
  • black robin
  • captive population
  • insular species
  • management activities

  • recovery program
  • international union
  • wild birds
  • population declined
  • national audubon

  • gallirallus australis
  • zealand wildlife
  • data book
  • feral cats
  • australis greyi

  • sri lanka
  • mauritius kestrel
  • mangere island
  • island black
  • seychelles brush


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