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- W4310348081 abstract "The quantity and quality of individual social relationships is a fundamental feature of social structure for group-living species. In many species, individuals preferentially associate with close relatives, which can amplify social benefits through inclusive fitness. Reproductive variation, dispersal and other factors may nevertheless impact relative kin availability, especially for species with slow life histories. As such, variation in family size can affect the social integration of the individual. Here, we investigated the effects of family size on female sociality in a population of Indo-Pacific bottlenose dolphins, Tursiops aduncus, in Shark Bay, Australia. This population exhibits high fission–fusion dynamics, with females varying widely in gregariousness and both sexes remaining philopatric, providing females with both matrilineal and nonmatrilineal kin as potential associates. We used genetic relatedness data obtained from a large single nucleotide polymorphism (SNP) panel and a spatially explicit null model to measure females' propensities to form affiliations with both related and unrelated individuals. We found that females had strong social preferences for matrilineal close (first, second and third degree) kin, but also significant preferences for nonmatrilineal close and more distant kin compared to unrelated individuals. Despite these preferences, we found only small effects of kin availability on individual social position. Stronger and more consistent effects were attributable to individual foraging ecology, although much of the variation remains unexplained. Overall, our models suggest that while female dolphins have strong kin preferences, their social connectivity is not determined by family size; rather, individual foraging strategies and high fission–fusion dynamics enable a diverse repertoire of social strategies to coexist within a population." @default.
- W4310348081 created "2022-12-09" @default.
- W4310348081 creator A5047894039 @default.
- W4310348081 creator A5066470767 @default.
- W4310348081 creator A5078793187 @default.
- W4310348081 creator A5079121743 @default.
- W4310348081 creator A5088019966 @default.
- W4310348081 creator A5089734991 @default.
- W4310348081 date "2023-01-01" @default.
- W4310348081 modified "2023-09-30" @default.
- W4310348081 title "Small effects of family size on sociality despite strong kin preferences in female bottlenose dolphins" @default.
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- W4310348081 doi "https://doi.org/10.1016/j.anbehav.2022.10.011" @default.