Juvenile Female Aggression in Cooperatively Breeding Pied Babblers: Causes and Contexts
Sex biases in adult aggression have been well studied and commonly arise when resources which affect survival or lifetime reproductive success are less abundant or more valuable for individuals of one sex. Despite the prevalence of sex biases in adult aggression, evidence for sex biases in juvenile...
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Published in | Ethology Vol. 114; no. 5; pp. 452 - 458 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Oxford, UK
Oxford, UK : Blackwell Publishing Ltd
01.05.2008
Blackwell Publishing Ltd |
Subjects | |
Online Access | Get full text |
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Summary: | Sex biases in adult aggression have been well studied and commonly arise when resources which affect survival or lifetime reproductive success are less abundant or more valuable for individuals of one sex. Despite the prevalence of sex biases in adult aggression, evidence for sex biases in juvenile aggression is scant. Here, we present evidence for female-biased juvenile aggression in cooperatively breeding pied babblers (Turdoides bicolor). Unlike most cases of non-lethal sibling aggression, juvenile aggression in pied babblers does not seem to be determined by food availability. Instead, we found that juvenile aggression was related to adult dispersal patterns. This study shows that females that were more aggressive as juveniles attempted dispersal earlier than less aggressive females. Potential explanations for the association between juvenile aggression and adult dispersal patterns are discussed. |
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Bibliography: | http://dx.doi.org/10.1111/j.1439-0310.2008.01482.x istex:BF85B03F5F415BE752A63A6EBCB2E1AA94A179A2 ark:/67375/WNG-643V0241-M ArticleID:ETH1482 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0179-1613 1439-0310 |
DOI: | 10.1111/j.1439-0310.2008.01482.x |