关键词: 四川梅花鹿, 昼夜活动节律, 时间分配

Abstract: The daily activity rhythm and time budget of Sichuan sika deer ( Cervus nippon sichuanicus) were studied in the Tiebu Nature Reserve of Sichuan province during April , 1997. 191 and 29 individuals were observed by scan sampling in daytime and night respectively. The results indicated that the diurnal activity rhythmof Sichuan sika deer was characterized by two peaks : first peak at 08 : 30 and second peak at 19 : 00. But they were more active in night than in day time , except at about 01 : 30. By the object sampling , 69 individuals of Sichuan sika deer recorded. It was concluded that their most activity time were spent in feeding and moving (90 %) . Among them , feeding accounted for 74.27 % in daytime and 58.90 % in night , and moving made 15.20 % and 31.29 % respectively. Sunlight , food and human activities are major factors that affect the daily activity rhythm and time budget of Sichuan sika deer.

Key words: Sichuan sika deer ( Cervus nippon sichuanicus), Daily activity rhythms, Time budget