Disproportionate participation by age/sex classes in aggressive interactions between long‐tailed macaques (Macaca fascicularis) and human tourists at Padangtegal monkey forest, Bali, Indonesia

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Abstract
We observed 420 aggressive interactions between tourists and Macaca fascicularis at the Padangtegal Wanara Wana Temple forest site in Bali, Indonesia, during the months of June and July 2001. The data collected included patterns of aggression, presence or absence of food, and demographic information on resident macaques and human visitors. Analyses of the interactions suggest that macaques respond differentially to humans according to the age/sex classes involved. Additionally, adult and subadult male macaques participated in more aggressive behaviors than expected, while adult female macaques and immatures participated in such behaviors less than expected. These variations in interaction patterns between macaques and tourists may have substantial implications for management issues and the potential for pathogen transmission. Am. J. Primatol. 66:197–204, 2005.