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Low level of extrapair parentage in wild zebra finches

Griffith, Simon C., Holleley, Clare E., Mariette, Mylene M. and Svedin, Nina 2010, Low level of extrapair parentage in wild zebra finches, Animal behaviour, vol. 79, no. 2, pp. 261-264, doi: 10.1016/j.anbehav.2009.11.031.

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Title Low level of extrapair parentage in wild zebra finches
Author(s) Griffith, Simon C.
Holleley, Clare E.
Mariette, Mylene M.
Svedin, Nina
Journal name Animal behaviour
Volume number 79
Issue number 2
Start page 261
End page 264
Total pages 4
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2010
ISSN 0003-3472
Keyword(s) extrapair paternity
intraspecific brood parasitism
sexual conflict
sexual selection
sperm competition
Taeniopygia guttata
zebra finch
Summary The captive zebra finch, Taeniopygia guttata, has become one of the key vertebrate model systems for studying a range of behavioural, physiological and neurological phenomena. In particular, this species has played a key role in developing our understanding of sexual selection and sperm competition. In contrast with the large number of studies using domesticated zebra finches, relatively few studies have focused on free-living populations of wild zebra finches. Investigating the incidence of extrapair paternity in zebra finches in the Australian desert, we found a very low level; 1.7% of 316 offspring from four of 80 broods fathered outside the pair bond. These numbers contrast with the high levels of extrapair paternity observed in domesticated aviary populations, and suggest a low level of sperm competition and sexual selection in natural populations. Our finding of such a low rate of extrapair paternity in the wild zebra finch suggests that it is one of the most genetically monogamous of all passerine species and that has important implications for future studies of this model organism in studies of sexual selection and reproductive biology. In addition, we found that 5.4% of 316 offspring were not related to either putative parent and hatched from eggs that had been dumped by intraspecific brood parasites.
Language eng
DOI 10.1016/j.anbehav.2009.11.031
Field of Research 059999 Environmental Sciences not elsewhere classified
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2010, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30059346

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