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dc.contributor.authorBradley, David William
dc.contributor.authorMolles, Laura E.
dc.contributor.authorValderrama Ortiz, Sandra Viviana
dc.contributor.authorKing, Sarah
dc.contributor.authorWaas, Joseph R.
dc.date.accessioned2013-04-12T04:44:45Z
dc.date.available2013-04-12T04:44:45Z
dc.date.copyright2012-03
dc.date.issued2012
dc.identifier.citationBradley, D. W., Molles, L. E., Valderrama, S. V., King, S., & Waas, J. R. (2012). Factors affecting post-release dispersal, mortality, and territory settlement of endangered kokako translocated from two distinct song neighborhoods. Biological Conservation, 147(1), 79-86.en_NZ
dc.identifier.issn0006-3207
dc.identifier.urihttps://hdl.handle.net/10289/7451
dc.description.abstractAnimal translocation success rate is generally low, with the causes of failure poorly understood without comprehensive and protracted monitoring. Here we examine the outcome of a translocation of endangered North Island kokako (Callaeas wilsoni) from two adjacent song neighborhoods in New Zealand, each with individual vocal traditions (c. 75% of phrases unshared) to a single release site. We conducted detailed radio-telemetry to monitor post-release dispersal over 50 days during four serial releases of 20 birds while we broadcast neighborhood-specific song around the release site. The birds moved substantial distances after release, however overall short-term release site dispersal was not as great as predicted by a random walk model, suggesting an attraction to playback and/or a reluctance to explore areas away from the release site. This apparent attraction was not specific to a given song neighborhood, however. Although the post-release mortality rate (22% over 31 days) was relatively high in this translocation, we did not detect an effect of sex, age, source origin, or duration of captivity on mortality. We show that habitat use during this acclimation period was disproportionate to availability – the birds’ preferred habitat was similar to that at the capture site. At least four pairs formed, with two and three confirmed breeding in the first and second seasons post-release respectively. Mate choice was non-assortative with respect to song neighborhood, revealing that reduced phrase sharing rates found in adjoining neighborhoods are not a barrier to pair formation. We compare this example with other kokako translocations and make recommendations for future translocations.en_NZ
dc.language.isoen
dc.publisherElsevieren_NZ
dc.relation.ispartofBiological Conservation
dc.subjectCallaeas wilsonien_NZ
dc.subjectDispersalen_NZ
dc.subjectHabitaten_NZ
dc.subjectMortalityen_NZ
dc.subjectNorth Island kokakoen_NZ
dc.subjectSongen_NZ
dc.subjectTranslocationen_NZ
dc.titleFactors affecting post-release dispersal, mortality, and territory settlement of endangered kokako translocated from two distinct song neighborhoodsen_NZ
dc.typeJournal Articleen_NZ
dc.identifier.doi10.1016/j.biocon.2011.11.019en_NZ
dc.relation.isPartOfBiological Conservationen_NZ
pubs.begin-page79en_NZ
pubs.elements-id37050
pubs.end-page86en_NZ
pubs.issue1en_NZ
pubs.volume147en_NZ


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