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Hanya G (2009) Effects of food type and number of feeding sites in a tree on aggression during feeding in wild Macaca fuscata. International Journal of Primatology 30:569-581.
Abstract
It is important to understand the effects of ecological factors on aggression
during feeding in order to link habitat characteristics to competitive
regime and social relationships. Multiple habitat characteristics are likely
to affect aggression, but few studies have examined the effect of multiple
factors on within-group competition simultaneously. I examined the effect
of eight factors for an effect on aggression during feeding in wild Japanese
macaques living in a coniferous forest in Yakushima: density of the tree
species, feeding time, number of feeding sites within a feeding tree, number
of co-feeding animals, within-tree macaque density, food type, rank and
sex of the focal animal. When macaques co-fed with other individuals, food
type, the number of feeding sites and their interactions significantly
influenced aggression. Aggression increased when macaques ate fruits/seeds
when compared to other foods and as the number of feeding sites decreased.
Primate socioecological models highlight the importance of clumped distribution
of food patches as a correlate of within-group contest. However, this study
indicated that primatologists need to pay attention to the factors related
to the current feeding tree (food type and feeding tree size with respect
to monopolizability) in addition to the distribution of food in the entire
home range.
Keywords: aggression; co-feeding; food distribution; monopolizability; Yakushima
<Written by: Goro Hanya (hanya.goro.5z<atmark>kyoto-u.ac.jp)>
<Contact: Goro Hanya (hanya.goro.5z<atmark>kyoto-u.ac.jp)>
<Last update: June 26, 2009>