Diet and activity budget of Rhinopithecus roxellana in the Qinling Mountains, China
Diet and activity budget of Rhinopithecus roxellana in the Qinling Mountains, China
复制标题
中国秦岭地区川金丝猴的饮食和活动预算
DOI：
10.1007/s10329-007-0048-z
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发表时间：
2007-10-01
期刊：
影响因子：
1.7
通讯作者：
Watanabe, Kunio
中科院分区：
文献类型：
--
作者：
Guo, Songtao;Li, Baoguo;Watanabe, Kunio
2001年11月至2003年12月，对秦岭玉皇庙东岭川金丝猴（Rhinopithecusroxellana）的食物树物候和食物丰富度进行了调查。我们计算的季节性活动预算使用扫描采样收集的数据，从84个全天观测（冬季16，春季18，夏季28，秋季22天）。在扫描采样期间，我们记录了行为状态，以及所消耗的食物和物种。受试者食用了84种植物，包括29科的乔木和灌木以及地衣。食物种类随季节变化。R.结果表明，川金丝桃果实/种子占29.4%，地衣占29.0%，叶占24.0%，树皮占11.1%，芽占4.2%，枝条占1.3%，未鉴定物占1.0%。由于不同食物的丰富度随季节而变化，猴子不得不季节性地改变它们的主要食物。R. roxellana的主要行为是：36.2%的时间用于休息，35.8%的时间用于进食，22.9%的时间用于移动，5.1%的时间用于其他行为。观察到活动预算的季节性变化。R.在食物质量最高的秋季，川金丝猴活动时间最长，而在食物质量最低的冬季，川金丝猴活动时间最短。因此，这种类型的猴子有一个被动的觅食策略。
We collected data on diet and daytime activity budget, and investigated the phenology of food trees and food abundance for a group of Rhinopithecus roxellana on the East Ridge of Yuhuangmiao in the Qinling Mountains from November 2001 to December 2003. We calculated the seasonal activity budget using data collected by scan sampling from 84 full-day observations (winter 16, spring 18, summer 28, autumn 22 days). During scan sampling we recorded behavioral states, and the food items and species consumed. The subjects consumed 84 plant species, including trees and shrubs of 29 families, and lichens. Food species varied seasonally. The overall diet of R. roxellana consisted of 29.4% fruit/seeds, 29.0% lichens, 24.0% leaves, 11.1% bark, 4.2% buds, 1.3% twigs and 1.0% unidentified items. Because the abundance of different food items varied seasonally, the monkeys had to shift their major food items seasonally. The annual activity budget of R. roxellana was 36.2% time spent resting, 35.8% feeding, 22.9% moving, and 5.1% other behavior. Seasonal changes in activity budget were observed. R. roxellana spent more time moving in autumn, when the quality of the food might be highest, and least time moving in winter when the food quality might be lowest. Thus, this type of monkey has a passive foraging strategy.