Social information use by predators : expanding the information ecology of prey defences
Hämäläinen, L., M. Rowland, H., Mappes, J., & Thorogood, R. (2021). Social information use by predators : expanding the information ecology of prey defences. Oikos, Early View. https://doi.org/10.1111/oik.08743
© 2021 the Authors
Social information use is well documented across the animal kingdom, but how it influences ecological and evolutionary processes is only just beginning to be investigated. Here we evaluate how social transmission may influence species interactions and potentially change or create novel selection pressures by focusing on predator–prey interactions, one of the best studied examples of species coevolution. There is extensive research into how prey can use social information to avoid predators, but little synthesis of how social transmission among predators can influence the outcome of different stages of predation. Here we review evidence that predators use social information during 1) encounter, 2) detection, 3) identification, 4) approach, 5) subjugation and 6) consumption. We use this predation sequence framework to evaluate the implications of social information use on current theoretical predictions about predator–prey dynamics, and find that social transmission has the potential to alter selection pressures for prey defences at each predation stage. This suggests that considering social interactions can help answer open questions about species coevolution, and also predict how populations and communities respond to rapid human-induced changes in the environment. ...
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Related funder(s)Academy of Finland
Funding program(s)Research costs of Academy Professor, AoF
Additional information about fundingLH was supported by Jenny and Antti Wihuri Foundation. HMR is supported by the Max Planck Society. JM was supported by the Academy of Finland (no. 320438) and the University of Jyväskylä. RT was supported by a start-up grant from the Helsinki Institute of Life Science (HiLIFE), University of Helsinki.
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