2022
DOI: 10.1007/s00265-022-03262-x
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Patch choice decisions by a fission–fusion forager as a test of the ecological constraints model

Abstract: Chapman et al.’s (Behav Ecol Sociobiol 36:59–70, 1995) ecological constraints model posits that the size and distribution of food patches place restrictions upon foraging group size. Larger groups incur increased travel costs for any given array of patches, and thus, to fulfil individual energetic and nutritional requirements, foragers should adjust group sizes to balance energy obtained against that spent on travelling. Support for this model comes from both comparative and species-specific studies but findin… Show more

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Cited by 3 publications
(2 citation statements)
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“…Our finding of greater agonistic competition in larger groups (parties) suggests the operation of ecological constraints on group size, as seen in high fission–fusion taxa [25,48,69]. Thus, although larger group (party) size may confer feeding benefits in this strong between-group contest regime [47], a part of such benefits is likely to be offset by the costs of within-group competition, possibly similar to the quadratic relationship between group size and foraging efficiency in some primates [50].…”
Section: Discussionmentioning
confidence: 97%
See 1 more Smart Citation
“…Our finding of greater agonistic competition in larger groups (parties) suggests the operation of ecological constraints on group size, as seen in high fission–fusion taxa [25,48,69]. Thus, although larger group (party) size may confer feeding benefits in this strong between-group contest regime [47], a part of such benefits is likely to be offset by the costs of within-group competition, possibly similar to the quadratic relationship between group size and foraging efficiency in some primates [50].…”
Section: Discussionmentioning
confidence: 97%
“…Here, we examined how food distribution influences the frequencies of agonistic interactions within and between clans (schematic in figure 1). We also examined the role of competitor density: while it was known to increase within-group contest (group size effect: [16,48]), its link with between-group contest was less studied (effect of population density: [5]; e.g. [49] explored the effect of population growth).…”
Section: Introductionmentioning
confidence: 99%