Sleeping Sites of <Emphasis Type="Italic">Rhinopithecus brelichi</Emphasis> at Yangaoping,Guizhou |
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Authors: | Zuo-Fu Xiang Shuai-Guo Nie Zong-Fei Chang Fu-Wen Wei Ming Li |
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Institution: | (1) Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China;(2) College of Life Science and Technology, Central South University of Forestry & Technology, Changsha, Hunan, 410004, China;(3) Graduate School of the Chinese Academy of Sciences, Beijing, 100039, China; |
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Abstract: | Arboreal primates spend about half of their lives at sleeping sites; hence, selection of sleeping sites is crucial for individual
survival, and data concerning them is important for conservation efforts. We collected data on sleeping sites for a group
of the endangered snub-nosed monkey (Rhinopithecus brelichi) at Yangaoping (27°58′N, 108°45′E) from January 2006 to December 2007. All sleeping sites were located in the mid-slope and
in the shadow of ridges facing the northeast and southeast. The monkeys remained quiet while entering and occupying sleeping
sites, and slept in evergreen species during the cold season (December–March). Trees in sleeping sites were similar in height
and girth at breast height to those elsewhere, but some trees in lower areas were larger. The monkeys usually slept in close
proximity to the last feeding spot, and their daily activities usually occurred around the sleeping site. Areas adjacent to
sleeping sites were used more intensively than those not adjacent. Monkeys left the sleeping sites later in the morning in
the cold season. These behavioral responses suggested that predation risk, thermoregulation, and climate stresses are the
main determining factors in the selection of sleeping sites for this temperate monkey. |
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