Determinants of hyena participation in risky collective action.

Autor: Montgomery TM; Department of Integrative Biology and Program in Ecology, Evolution, and behavior, Michigan State University, 288 Farm Lane, East Lansing, MI 48824, USA.; Mara Hyena Project, PO Box 164-00502, Karen, Nairobi, Kenya.; Department for the Ecology of Animal Societies, Max Planck Institute for Animal Behavior, Bücklestraße 5a, 78467 Konstanz, Germany.; Center for the Advanced Study of Collective Behavior, University of Konstanz, Universitätsstraße 10, 78464 Konstanz, Germany., Lehmann KDS; Department of Integrative Biology and Program in Ecology, Evolution, and behavior, Michigan State University, 288 Farm Lane, East Lansing, MI 48824, USA.; Human Biology Program, Michigan State University, 288 Farm Lane, East Lansing, MI 48824, USA.; Mara Hyena Project, PO Box 164-00502, Karen, Nairobi, Kenya., Gregg S; Department of Integrative Biology and Program in Ecology, Evolution, and behavior, Michigan State University, 288 Farm Lane, East Lansing, MI 48824, USA., Keyser K; Department of Integrative Biology and Program in Ecology, Evolution, and behavior, Michigan State University, 288 Farm Lane, East Lansing, MI 48824, USA., McTigue LE; Department of Integrative Biology and Program in Ecology, Evolution, and behavior, Michigan State University, 288 Farm Lane, East Lansing, MI 48824, USA.; Rocky Mountain Research Station, Colorado State University, 240 W Prospect St, Fort Collins, CO 80525, USA., Beehner JC; Department of Psychology, University of Michigan, 530 Church Street, Ann Arbor, MI 48109, USA.; Department of Anthropology, University of Michigan, 1085 South University Avenue, Ann Arbor, MI 48109, USA., Holekamp KE; Department of Integrative Biology and Program in Ecology, Evolution, and behavior, Michigan State University, 288 Farm Lane, East Lansing, MI 48824, USA.; Mara Hyena Project, PO Box 164-00502, Karen, Nairobi, Kenya.
Jazyk: angličtina
Zdroj: Proceedings. Biological sciences [Proc Biol Sci] 2023 Nov 29; Vol. 290 (2011), pp. 20231390. Date of Electronic Publication: 2023 Nov 29.
DOI: 10.1098/rspb.2023.1390
Abstrakt: Collective action problems arise when cooperating individuals suffer costs of cooperation, while the benefits of cooperation are received by both cooperators and defectors. We address this problem using data from spotted hyenas fighting with lions. Lions are much larger and kill many hyenas, so these fights require cooperative mobbing by hyenas for them to succeed. We identify factors that predict when hyena groups engage in cooperative fights with lions, which individuals choose to participate and how the benefits of victory are distributed among cooperators and non-cooperators. We find that cooperative mobbing is better predicted by lower costs (no male lions, more hyenas) than higher benefits (need for food). Individual participation is facilitated by social factors, both over the long term (close kin, social bond strength) and the short term (greeting interactions prior to cooperation). Finally, we find some direct benefits of participation: after cooperation, participants were more likely to feed at contested carcasses than non-participants. Overall, these results are consistent with the hypothesis that, when animals face dangerous cooperative dilemmas, selection favours flexible strategies that are sensitive to dynamic factors emerging over multiple time scales.
Databáze: MEDLINE