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Li, D./ B. Ren/ X. He/ G. Hu/ B. Li/ M. Li 2011: Diet of Rhinopithecus bieti at Xiangguqing in Baimaxueshan National Nature Reserve. - Acta Theriologica Sinica 31(4): 338-346. [RLL List # 226 / Rec.# 33762]
Keywords: Diet/ Lichen/ Seasonal variation/ Yunnan snub-nosed monkey (Rhinopithecus bieti)/ diet/ feeding behavior/ food consumption/ leaf/ lichen/ nature reserve/ primate/ sampling/ seasonal variation/ seasonality/ shoot/ taxonomy/ Baimaxueshan Nature Reserve/ China/ Yunnan
Abstract: From June 2008 to May 2009, we studied the diet composition for an over-large group of the Yunnan snub-nosed monkey (Rhinopithecus bieti) by direct observation and instantaneous scan sampling method at Xiangguqing (27°37'N, 99°22'E) in the Baimaxueshan National Nature Reserve, Yunnan Province. The results indicated that the diet composition of R. bieti included 105 plant species in 42 families. The annual diet consisted of 50.6% lichens, 16.3% mature leaves, 10.5% fruits and seeds, 8.4% young leaves, 7.9% bamboo shoots, 3.0% buds, 1.9% flowers, 0.8% bark/petiole/stem, and 0. 5% fungi. The results also indicated that the monkey consumed more young leaves in spring, and more fruits and seeds in autumn, which suggested their dietary diversity varied seasonally. Bamboo shoots became one of primary foods of R. bieti in summer. We also found that their feeding the 10 families occupied 39. 6% of the total, and Rosaceae occupied 17. 57% , which showed significantly selectivity for food. Thus, all results suggested that feeding behaviors of R. bieti were significantly influenced by the seasonal variation of diverse foods.
Notes: This monkey primarily eats lichens.
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