Previous Articles     Next Articles

DAILY ACTIVITY RHYTHM AND TIME BUDGET OF GOLDEN TAKIN IN SPRING AND SUMMER

ZENG Zhigao,SONG Yanling   

  • Online:2006-06-01 Published:2008-07-07

秦岭羚牛春夏季昼夜活动节律与时间分配

曾治高,宋延龄   

  1. 中国科学院动物研究所,北京

Abstract: Daily active rhythm of four radio-collared golden takins (Budorcas taxicolor bedfordi) had been studied by monitoring each individual at 10 minute interval for more than 3 continuous days in each months at Foping Nature Reserve, Shaanxi Province from April to August in 1996. The activities of feeding standing and walking were accounted 69.95±11.06% for each 24 hours (n=40), and 76.77% of the activities were recorded in the period of sun raising to sun setting. Three active peaks were found in 06: 00-08: 00, 10: 00-12: 00, 18: 00-20: 00, during which takins were observed feeding in the field. In the night takins spend most time at rest, but one active peak was more likely to record in the midnight of 0: 00-1: 00. The daily active rhythm of takin could be affected by climate factors such as the intensity of sunshine temperature and raining etc. Takins were engaged in busily feeding in the morning from 06: 00 to 07: 00 and in the evening of 18: 30-19: 30. At those time period more than 90% of the active signals were recorded for the four radio-collared animals. The activity rate of radio-collared animals were much lower in the hard raining days. There were difference in active rhythm and time budget between individuals in different ages among the four radio-collared takins.

Key words: Golden takin (Budorcas taxicolor bedjbrdi), Radio-monitoring, Daily activity rhythm, Time budget

摘要: 1996年4~8月,在陕西省佛坪自然保护区内采用无线电遥测技术对4只秦岭羚牛(Budorcas taxicolor bedfordi)的活动规律进行了研究。春夏季羚牛的活动规律以白昼活动为主。羚牛每昼夜有69.95+11.06%的时间处于活动状态(n=40),其中76.77%的活动时间是在日出后到日落前的白昼。白昼有3个活动高峰期,分别出现在06:00~08:00、10:00~12:00、18:00~20:00 3个时间段。在夜间羚牛只有1个活动高峰期,通常出现在24:00至次日凌晨01:00的时间段。野外观察证实,羚牛白昼的3个活动高峰期与羚牛群体活跃采食的时间吻合。羚牛的昼夜活动节律的形成与变化,可能会受到诸如光照、温度、雨等气候条件的影响。每天的黎明阶段(06:00~07:00)及黄昏阶段(18:30~19:30)是羚牛活动最频繁的时候,平均活动率在90%以上。大雨期间羚牛常常站立或卧地休息。此外,羚牛昼夜活动节律和时间分配方面的差异在年龄上也有所体现。

关键词: 秦岭羚牛, 无线电遥测, 昼夜活动节律, 时间分配