Why some species of birds do not avoid inbreeding: insights from New Zealand robins and saddlebacks
نویسندگان
چکیده
Ian G. Jamieson, Sabrina S. Taylor, Lisa N. Tracy, Hanna Kokko, and Doug P. Armstrong Department of Zoology, University of Otago, P.O. Box 56, Dunedin, 9054, New Zealand, Department of Forest Sciences, Centre for Applied Conservation Research, 3041 2424 Main Mall, Vancouver, British Columbia, Canada V6T 1Z4, Department of Biological and Environmental Science, P.O. Box 56, University of Helsinki, FIN-00014 Helsinki, Finland, School of Botany and Zoology, Banks Wing Building, Australian National University, Canberra ACT 0200, Australia, and Wildlife Ecology Group, Institute of Natural Resources, P.O. Box 11 222, Massey University, Palmerston North, New Zealand
منابع مشابه
Successful island reintroductions of New Zealand robins and saddlebacks with small numbers of founders
Populations established with a small number of founders are thought to have a high risk of extinction due to Allee effects, demographic stochasticity, inbreeding and reduced genetic variation. We tested whether the initial number of birds released was related to persistence in reintroductions of saddlebacks (Philesturnus carunculatus) and robins (Petroica australis) to New Zealand offshore isla...
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We compared historic and contemporary genetic variation in two threatened New Zealand birds (saddlebacks and robins) with disparate bottleneck histories. Saddlebacks showed massive loss of genetic variation when extirpated from the mainland, but no significant loss of variation following a severe bottleneck in the 1960s when the last population was reduced from approximately 1000 to 36 birds. L...
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High rates of extra-pair paternity (EPP) can be relatively common in passerines whereas low rates or absence of EPP are often associated with taxa that are long-lived and exhibit obligatory paternal care. We examined EPP in an underrepresented category: passerine species with relatively long life spans (or low annual mortality rates). Specifically, we studied EPP in New Zealand saddlebacks Phil...
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