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Food exploitation: searching for the optimal joining policy.

Giraldeau, Luc-Alain; Beauchamp, Guy (1999). Food exploitation: searching for the optimal joining policy. Trends in Ecology & Evolution , vol. 14 , nº 3. p. 102-106. DOI: 10.1016/S0169-5347(98)01542-0.

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Résumé

Commonly invoked foraging advantages of group membership include increased mean food intake rates and/or reduced variance in foraging success. These foraging advantages rely on the occurrence of 'joining': feeding from food discovered or captured by others. Joining occurs in most social species but the assumptions underlying its analysis have been clarified only recently, giving rise to two classes of model: information-sharing and producer-scrounger models. Recent experimental evidence suggests that joining in ground-feeding birds might be best analysed as a producer-scrounger game, with some intriguing consequences for the spatial distribution of foragers and patch exploitation.

Type de document: Article
Mots-clés libres: food intake; foraging behavior; theoretical study
Centre: Institut national de la recherche scientifique
Date de dépôt: 02 mai 2018 17:51
Dernière modification: 02 mai 2018 17:51
URI: http://espace.inrs.ca/id/eprint/7019

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