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- W2024726045 endingPage "20122772" @default.
- W2024726045 startingPage "20122772" @default.
- W2024726045 abstract "Environmental factors can determine which group size will maximize the fitness of group members. This is particularly important in cooperative breeders, where group members often serve different purposes. Experimental studies are yet lacking to check whether ecologically mediated need for help will change the propensity of dominant group members to accept immigrants. Here, we manipulated the perceived risk of predation for dominant breeders of the cooperatively breeding cichlid fish Neolamprologus pulcher to test their response to unrelated and previously unknown immigrants. Potential immigrants were more readily accepted if groups were exposed to fish predators or egg predators than to herbivorous fish or control situations lacking predation risk. Our data are consistent with both risk dilution and helping effects. Egg predators were presented before spawning, which might suggest that the fish adjust acceptance rates also to a potential future threat. Dominant group members of N. pulcher apparently consider both present and future need of help based on ecological demand. This suggests that acceptance of immigrants and, more generally, tolerance of group members on demand could be a widespread response to ecological conditions in cooperatively breeding animals." @default.
- W2024726045 created "2016-06-24" @default.
- W2024726045 creator A5045250829 @default.
- W2024726045 creator A5052457752 @default.
- W2024726045 creator A5085923180 @default.
- W2024726045 date "2013-04-07" @default.
- W2024726045 modified "2023-09-30" @default.
- W2024726045 title "Group size adjustment to ecological demand in a cooperative breeder" @default.
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- W2024726045 doi "https://doi.org/10.1098/rspb.2012.2772" @default.
- W2024726045 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3574370" @default.
- W2024726045 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/23390105" @default.
- W2024726045 hasPublicationYear "2013" @default.
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