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蒙新河狸夏季夜间活动节律和时间分配

刘冬志 蒋志刚 初红军 黄效文 张帆 陈刚   

  1. 新疆大学资源与环境科学学院
  • 出版日期:2013-02-27 发布日期:2013-11-20

Summer nocturnal activity rhythms and time budgets of the Sino-Mongo- lia beaver (Castor fiber birulai)in Xinjiang,China

LIU Dongzhi,JIANG Zhigang,CHU Hongjun,WONG Howman,ZHANG Fan,CHEN Gang   

  • Online:2013-02-27 Published:2013-11-20

摘要: 2011 年7 ~8 月和2012 年7 ~ 8 月,采用瞬时扫描取样法和焦点动物取样法研究了新疆布尔根河狸保护区蒙新河狸夏季夜间行为节律和时间分配,结果表明:夏季蒙新河狸活动高峰呈晨昏型。觅食和移动行为分别占69.5% 和24.5% ,修饰、警戒和其他行为的时间比例依次是3.4% 、0.4% 、2.2% 。利用Pearson’s correlation 检验发现移动和警戒行为之间存在显著正相关,而觅食行为分别与移动、修饰和其他行为之间呈极显著负相关,与警戒存在显著负相关;Mann-Whitney U 检验表明年龄因素对河狸各种行为的影响不显著(P > 0. 05)。

关键词: 蒙新河狸, 行为节律, 时间分配

Abstract: From July to August in 2011 and 2012,we studied the nocturnal activity rhythms and time budgets of Eurasian beaver (Castor fiber birulai ) in the Bulgan Beaver Nature Reserve of Xinjiang,China. The results indicated that C. f. birulai had obvious periodic activities with activity peaks at dawn and dusk. The beavers spent 69. 5% of their time foraging,24. 5% moving,3.4% grooming,0. 4% on vigilance and 2.2% on the other activities. Pearson’s correlation test indicated that there were positive correlations between movements and vigilance behavior,there also were highly significant negative correlations between foraging behavior and movements,and between grooming and other behaviors,and a significant
negative correlation between foraging and vigilance behavior. The results of Mann-Whitney U test revealed that age did not affect the behaviors of C. f. birulai.

Key words: Castor fiber birulai, Nocturnal activity rhythms, Time budgets