The Role of Immigration in the Decline of an Isolated Migratory Bird Population
Article Abstract:
Four hypotheses are tested for their role(s) in the decline of an isolated Yellow-headed Blackbird population in Illinois: poor reproductive success, low immigration, low adult survival, and local habitat loss. Despite high levels of reproduction and survival, low recruitment was found to be the main factor behind the decline. Conventional conservation management techniques may therefore be insufficient to restore populations undergoing declines.
Publication Name: Conservation Biology
Subject: Zoology and wildlife conservation
ISSN: 0888-8892
Year: 2005
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Conspecific Attraction and the Conservation of Territorial Songbirds
Article Abstract:
Research on Black-capped Vireo populations shows that playing vireo vocalizations can attract birds to unoccupied habitats, with one year of vocalization playbacks appearing to be sufficient to establish a vireo population. Implications for using this method for conservation efforts are discussed.
Publication Name: Conservation Biology
Subject: Zoology and wildlife conservation
ISSN: 0888-8892
Year: 2004
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Genetic Identification of Spotted Owls, Barred Owls, and Their Hybrids: Legal Implications of Hybrid Identity
Article Abstract:
Fragment-length polymorphism (AFLP) analysis is used to identify species and hybrids in Barred Owl and Northern Spotted Owl populations. Implications for conservation, law enforcement under the Endangered Species Act, and further research are discussed.
Publication Name: Conservation Biology
Subject: Zoology and wildlife conservation
ISSN: 0888-8892
Year: 2004
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