Reproductive promiscuity in the splendid fairy-wren: effects of group size and auxiliary reproduction
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چکیده
Michael S. Webster, Keith A. Tarvin, Elaina M. Tuttle, and Stephen Pruett-Jones School of Biological Sciences and Center for Reproductive Biology, Washington State University, Pullman, WA 99164-4236, USA, Department of Biology, Oberlin College, Oberlin, OH 44074, USA, Department of Life Sciences, Indiana State University, Terre Haute, IN 47809, USA, and Department of Ecology and Evolution, University of Chicago, Chicago, IL 60637, USA
منابع مشابه
Promiscuity drives sexual selection in a socially monogamous bird.
Many socially monogamous species paradoxically show signs of strong sexual selection, suggesting cryptic sources of sexual competition among males. Darwin argued that sexual selection could operate in monogamous systems if breeding sex ratios are biased or if some males attract highly fecund females. Alternatively, sexual selection might result from promiscuous copulations outside the pair bond...
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The red-backed fairy-wren is a socially monogamous passerine bird which exhibits two distinct types of breeding male, bright males that breed in bright red and black plumage and dull males that breed in dull brown plumage. Most males spend their first potential breeding season in dull plumage and subsequent breeding seasons in bright plumage, but a relatively small proportion of males develop b...
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Males of certain species of fairy-wrens (Aves: Maluridae) emit a unique vocalization, the Type II vocalization, in response to the calls of potential predators. We conducted ®eld observations and playback experiments to identify the contexts in which the Type II vocalization is emitted by splendid fairy-wren (Malurus splendens) males, and to examine social and genetic factors that in ̄uence its ...
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Why females mate with multiple males, particularly in socially monogamous species, is one of the central unanswered questions in sexual selection and behavioural ecology. Recent theory suggests that socially monogamous females may improve the genetic quality of their offspring by mating with extrapair males with whom they are more genetically dissimilar (relative to their social mates), because...
متن کاملInferring the phylogeography and evolutionary history of the splendid fairy-wren Malurus splendens from mitochondrial DNA and spectrophotometry
A. M. Kearns (correspondence) and M. C. Double, Div. of Botany and Zoology, Australian National University, Canberra, ACT 0200, Australia. E-mail: [email protected]. L. Joseph, Australian National Wildlife Collection, CSIRO Sustainable Ecosystems, GPO Box 284, Canberra, ACT 2601, Australia. S. V. Edwards, Dept. of Organismic and Evolutionary Biology, Museum of Comparative Zoology, Harvard Univ...
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تاریخ انتشار 2004