Abstract: This paper deals with the daily activity rhythm of 5 radio-collared giant pandas(Zhen Zhen, adult♀; Han Han, adult♀; Wei Wei, adult ; Ning Ning, subadult♀, Long Long, subadult♂) by the methods of direct observation, telemetering and tracing from 1981-1982 at Wolong Nature Conservation, Sichuan.The active and inactive behavior of the 5 giant pandas have been recorded by radio-telemetry, for continuative 5 days (120 hours) every month, one record a quarter, 96 records a day.There are two daily active peaks, the highest appears at 18:00 and the secondary at 04:00; there are two troughs also,the lowest appears at 09:00 and the secondary at 24:00.The daily active rate is 57-66%(year mean).The present paper also analyses the daily activity rhythm of giant pandas in spring, summer autumn,winter and in oestrus and parturition period respectively.

Key words: Giant panda, Ailuropoda melanoleuca, Daily activity rhythm, Seasonal activity rhythm

摘要： 本文采用无线电遥测、跟踪和直接观察等方法,研究了四川卧龙自然保护区野外5只大熊猫1981—1982年的昼夜活动。大熊猫昼夜有两个活动高峰,最高是18:00时,次高是04:00时;有两个低谷,最低是09:00时,次低是24:00时;年平均昼夜活动率为57—66%。

关键词: 大熊猫, 昼夜活动节律, 季节活动节律