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Clutton-Brock, T. |
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Title |
Cooperation between non-kin in animal societies |
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Journal Article |
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2009 |
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Nature |
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462 |
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7269 |
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51-57 |
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Explanations of cooperation between non-kin in animal societies often suggest that individuals exchange resources or services and that cooperation is maintained by reciprocity. But do cooperative interactions between unrelated individuals in non-human animals really resemble exchanges or are they a consequence of simpler mechanisms? Firm evidence of reciprocity in animal societies is rare and many examples of cooperation between non-kin probably represent cases of intra-specific mutualism or manipulation. |
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Macmillan Publishers Limited. All rights reserved |
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0028-0836 |
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10.1038/nature08366 |
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Call Number |
Equine Behaviour @ team @ |
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5270 |
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Author |
McComb, K.; Clutton-Brock, T. |
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Title |
Is mate choice copying or aggregation responsible for skewed distributions of females on leks? |
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Journal Article |
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Year |
1994 |
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Proceedings. Biological sciences / The Royal Society |
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Proc Biol Sci |
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255 |
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1342 |
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13-19 |
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Keywords |
Animals; Deer/*physiology; Estrus/physiology; Female; Male; Phenotype; Sexual Behavior, Animal/*physiology; Territoriality |
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In several lek-breeding populations of birds and mammals, females arriving on leks tend to join males that already have females in their territories. This might occur either because females have an evolved preference for mating with males that are attractive to other females, or because they join groups of other females to obtain greater safety from predation or dangerous harassment by males. We have previously used controlled experiments to show that oestrous fallow deer females join males with established harems because they are attracted to female groups rather than to the males themselves. Here we demonstrate that the preference for males with females over males without females is specific to oestrous females and weak or absent in anoestrous ones, and that it is not associated with a preference for mating with males that have previously been seen to mate with other females. Furthermore, oestrous females given the choice between males that do not already have females with them show no significant preference for antlered over deantlered males or for older males over younger ones. We conclude that female attraction to other females on the lek is likely to be an adaptation to avoiding harassment in mixed-sex herds. In this situation, a male's ability to maintain the cohesion of his harem may be the principal cause of variation in mating success between males. |
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Department of Zoology, University of Cambridge, U.K |
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English |
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0962-8452 |
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PMID:8153135 |
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1823 |
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Clutton-Brock, T.H.; Guinness, F.E.; Albon, S.D. |
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Title |
Red Deer: The Behavior and Ecology of Two Sexes |
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Miscellaneous |
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1982 |
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Equine Behaviour @ team @ |
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4886 |
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