Nesting henderson reed-warblers (acrocephalus vaughani taiti) studied by dna fingerprinting:Unrelated coalitions in a Stable Habitat?

Brooke, M. De L. and Hartley, Ian R. (1995) Nesting henderson reed-warblers (acrocephalus vaughani taiti) studied by dna fingerprinting:Unrelated coalitions in a Stable Habitat? Auk, 112 (1). pp. 77-86. ISSN 0004-8038

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Abstract

Using DNA fingerprinting we studied Henderson Reed-Warblers (Acrocephalus vaughani taiti), which are confined to Henderson Island in the central South Pacific. During the single study season, the birds had a well-defined nesting period from late August to early January. About one-third of nesting groups comprised three, not two adults. The members of trios, which could include two males and one female, or one male and two females, were unrelated. However, all members of trios contributed to incubation and/or feeding the young, whether or not they were parents of the chicks. The output of young per adult was slightly but not significantly higher in pairs than trios. We suggest a compensating advantage for members of trios: in the stable island habitat, young birds may be more readily able to secure a nesting territory when belonging to a trio than when in a pair.

Item Type: Journal Article
Journal or Publication Title: Auk
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/1100/1103
Subjects:
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 129263
Deposited By: ep_importer_pure
Deposited On: 30 Nov 2018 10:18
Refereed?: Yes
Published?: Published
Last Modified: 30 Sep 2019 21:27
URI: https://eprints.lancs.ac.uk/id/eprint/129263

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