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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 39, No. 4, 2018, pp. 284-290
Bioline Code: zr18027
Full paper language: English
Document type: Report
Document available free of charge

Zoological Research, Vol. 39, No. 4, 2018, pp. 284-290

 en Variations in diet composition of sympatric Trachypithecus francoisi check for this species in other resources and Macaca assamensis check for this species in other resources in the limestone habitats of Nonggang, China
Zhou, Qi-Hai; Huang, Zhong-Hao; Wei, Hua & Huang, Cheng-Ming

Abstract

Comparative studies of sympatric species are essential for understanding behavioral and ecological adaptation as well as the mechanisms that can reduce resource competition to allow coexistence. François’ langurs (Trachypithecus francoisi) and Assamese macaques (Macaca assamensis) are sympatric primate species found in the limestone seasonal rainforests of Nonggang Nature Reserve, southwestern Guangxi, China. To explore their different adaptation strategies, we collected data on diet using scan sampling at 15-min intervals. Our results revealed that François’ langurs showed a more flexible diet composition than Assamese macaques. François’ langurs increased dietary diversity and mature leaf consumption in response to seasonal scarcity of preferred young leaves and fruits, whereas Assamese macaques relied heavily on young bamboo leaves (Indocalamus calcicolus) in most months. These variations reflect the differences in digestive physiology, morphology, and the temporal and spatial distribution of food resources.

Keywords
François' langurs; Assamese macaques; Diet composition; Limestone habitat

 
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