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Female Yellowhammers (Emberiza-Citrinella) Prefer Yellower Males - A Laboratory Experiment
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Ecology and Evolution, Animal Ecology.
1995 (English)In: Behavioral Ecology and Sociobiology, ISSN 0340-5443, E-ISSN 1432-0762, Vol. 37, no 4, 275-282 p.Article in journal (Refereed) Published
Abstract [en]

The importance of male plumage coloration as a signal of male dominance and a cue for female choice in the monogamous yellowhammer, Emberiza citrinella, was tested in two sets of experiments in an indoor aviary. Dominance was tested by introducing two individuals, with no previous experience of each other, in an aviary with food and water. Aggression occurred more often between two males than between a male and a female and more frequently between pairs of males including at least one old male than between two young males. Dominance was not related to male colour in trials between males of the same age class, but it was in trials between an old and a young male, often differing in colour. Thus, age may be a more important determinant of dominance than colour. Female preference for more colourful males was tested by allowing hormone-induced females to choose between a more and a less colourful dummy male. Females spent more time in front of more colourful than drabber males and also more often perched beside colourful males than duller individuals. Although male colour cannot be ruled out as a dominance signal, the results suggest that male colour is primarily used as a signal in mate choice. Female choice may hence be responsible for maintenance of bright plumage in the male yellowhammer.

Place, publisher, year, edition, pages
1995. Vol. 37, no 4, 275-282 p.
National Category
Ecology Zoology
URN: urn:nbn:se:uu:diva-268364DOI: 10.1007/BF00177407ISI: A1995TC81600008OAI: oai:DiVA.org:uu-268364DiVA: diva2:876647
Available from: 2015-12-04 Created: 2015-12-04 Last updated: 2015-12-04Bibliographically approved

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Sundberg, Jan
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