Kleptoparasitic Melees—Modelling Food Stealing Featuring Contests with Multiple Individuals
Kleptoparasitism is the stealing of food by one animal from another. This has been modelled in various ways before, but all previous models have only allowed contests between two individuals. We investigate a model of kleptoparasitism where individuals are allowed to fight in groups of more than two, as often occurs in real populations. We find the equilibrium distribution of the population amongst various behavioural states, conditional upon the strategies played and environmental parameters, and then find evolutionarily stable challenging strategies. We find that there is always at least one ESS, but sometimes there are two or more, and discuss the circumstances when particular ESSs occur, and when there are likely to be multiple ESSs.
KeywordsKleptoparasitism Multiplayer contests ESS Game theory Strategy
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- Grimm, M. P., & Klinge, M. (1996). Pike and some aspects of its dependence on vegetation. In J. F. Craig (Ed.) Pike: biology and exploitation (pp. 125–126). London: Chapman and Hall. Google Scholar
- Jeanne, R. L. (1972). Social biology of the nootropical wasp. Bull. Museum Comp. Zool., 144, 63-1-50. Google Scholar
- Kruuk, H. (1972). The spotted hyena: a study of predation and social behaviour. Chicago: University of Chicago Press. Google Scholar
- Rothschild, M., & Clay, T. (1952). Fleas, Flukes and Cuckoos. Glasgow: Collins. Google Scholar
- Spear, L. B., Howell, S. N. G., Oedekoven, C. S., Legay, D., & Bried, J. (1999). Kleptoparasitism by brown skuas on albatrosses and giant-petrels in the Indian Ocean. The Auk, 116, 545–548. Google Scholar
- Steele, W. K., & Hockey, P. A. R. (1995). Factors influencing rate and success of intraspecific kleptoparasitism among kelp gulls. The Auk, 112, 847–859. Google Scholar