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Do networks of.social interactions ref.ect patterns of.kinship？

Current Zoology 2012年第2期58卷 319-328页

作者： Joah R. MADDEN johanna f. nielsen Tim H. CLUTTON-BROCK Centre f.r Research in Animal Behaviour College of Life and Environmental Sciences University of Exeter Exeter EX4 4QG UK. Institute of.Evolutionary Biology School of Biological Sciences University of Edinburgh West Mains Road Edinburgh EH9 3JT UK. Institute of.Zoology Zoological Society of London Regent＇s Park London NW1 4RY UK Large Animal Research Group Department of Zoology University of Cambridge Cambridge CB2 3E J UK.

The underlying kin structure of.groups of.animals may be glimpsed f.om patterns of.spatial position or temporal as- sociation between individuals, and is presumed to f.cilitate inclusive f.tness benef.ts. Such structure may be evident at a f.ner, behavioural, scale with individuals pref.rentially interacting with kin. We tested whether kin structure within groups of.meerkats Suricata suricatta matched three f.rms of.social interaction networks： grooming, dominance or f.raging competitions. Networks of.dominance interactions were positively related to networks of.kinship, with close relatives engaging in dominance interactions with each other. This relationship persisted even af.er excluding the breeding dominant pair and when we restricted the kinship network to only include links between f.rst order kin, which are most likely to be able to discern kin through simple rules of.thumb. Conversely, we f.und no relationship between kinship networks and either grooming networks or networks of.f.raging competitions. This is surprising because a positive association between kin in a grooming network, or a negative association be- tween kin in a network of.f.raging competitions of.ers opportunities f.r inclusive f.tness benef.ts. Indeed, the positive association between kin in a network of.dominance interactions that we did detect does not of.er clear inclusive f.tness benef.ts to group members. We conclude that kin structure in behavioural interactions in meerkats may be driven by f.ctors other than indirect f.t- ness benef.ts, and that networks of.cooperative behaviours such as grooming may be driven by direct benef.ts accruing to indi- viduals perhaps through mutualism or manipulation

关键词： Social network Kinship Social structure Grooming Dominance Meerkats

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