Variation between Self- and Mutual Assessment in Animal Contests
Mesterton-Gibbons, M., & Heap, S. (2014). Variation between Self- and Mutual Assessment in Animal Contests. The American Naturalist, 183(2), 199-213. https://doi.org/10.1086/674443
Julkaistu sarjassa
The American NaturalistPäivämäärä
2014Limited resources lead animals into conflicts of interest, which are resolved when an individual withdraws from a direct contest. Current theory suggests that the decision to withdraw can be based on a threshold derived from an individual’s own state (self-assessment) or on a comparison between their own state and their opponent’s (mutual assessment). The observed variation between these assessment strategies in nature does not conform to theory. Thus, we require theoretical developments that explain the functional significance of different assessment strategies. We consider a hawk-dove game with two discrete classes that differ in fighting ability, in which the players strategically decide on their investment toward mutual assessment. Analysis of the model indicates that there are simultaneous trade-offs relating to assessment strategies. First, weak individuals in a population must decide on whether to acquire information about their opponents at the cost of providing opponents with information about themselves. Secondly, all individuals must decide between investing in mutual assessment and being persistent in contests. Our analysis suggests that the potential for individuals to make errors during contests and differences in the consequences of sharing information within a population may serve as fundamental concepts for explaining variation in assessment strategy.
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Julkaisija
The University of Chicago PressISSN Hae Julkaisufoorumista
0003-0147
Alkuperäislähde
http://www.jstor.org/stable/10.1086/674443Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/23105976
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