Acta Anthropologica Sinica ›› 2020, Vol. 39 ›› Issue (03): 495-506.doi: 10.16359/j.cnki.cn11-1963/q.2018.0043

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A study of the foraging strategies of Rhesus Macaques (Macaca mulatta) in wild and provisioned free-ranging groups

DING Zhenfang1(), HAO Jing2, XU Hualin3, ZHANG Peng()   

  1. 1. School of Life Sciences, Sun Yat-sen University, Guangzhou 510275
    2. Anthropology Department, Sun Yat-sen University, Guangzhou 510275
    3. Guangdong Futian-Neilingding National Nature Reserve, Shenzhen 518040
  • Received:2017-08-01 Revised:2018-04-19 Online:2020-08-15 Published:2020-08-31
  • Contact: ZHANG Peng E-mail:ding_zhf@126.com;1104965103@qq.com

Abstract:

We conducted a comparative study for one-year (from December 2015 to November 2016) on foraging strategies of rhesus macaques (Macaca mulatta) in wild and provisioned free-ranging groups. The former group was distributed on Neilingding Island and the latter on Shangchuan Island. Both habitats have similar ecological conditions. In both groups, macaques selected fruit as their major food source. Macaques in the provisioned free-ranging group selected fruits with low crude protein and moisture content, whereas those in the wild group were not highly selective. Available fruit resources and nutrient content affected fruit choice of macaques. Throughout the year, both wild and provisioned macaques try to maximize energy gain per unit time with different behavioral strategies. The former continuously selected fruit as their major foods source, while the latter shifted feeding frequency of their fruit diet according to temporal variations of fruit availability. There was no significant relationship between density of trees and leaf consumption, as well as no significant difference in moisture content, crude protein, crude lipid, neutral detergent fibre and crude ash between the major leaf source and other leaf sources in both groups. This study revealed rhesus macaque feeding strategy and behavioral flexibility in response to resource variations in their habitats.

Key words: Foraging strategy, Food, Nutrition, Optimal foraging theory, Non-human primate, Macaca mulatta

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