Abstract: From June 2010 to August 2011,we deployed 58 infrared cameras along 300 - 1 100 m altitude in Gutianshan National Natural Reserve to monitor the seasonal changes in the activity pattern of black muntjac (Muntiacus crinifrons). Three activity indices (daily-discrepancy index α,diurnal-nocturnal index β and seasonal-activity index γ)were used to
analyze seasonal changes in the activity patterns of black muntjac.Results showed that the daily-discrepancy index α differed between months (P < 0. 01). The α value in winter was higher than in the other three seasons,which indicates that the daily activity time of black muntjac in winter is not even distributed,and shows a single peak each day. The α values in the summer months were lower than those in the other three seasons,which shows that the distribution of daily activity time in summer months was relatively uniform.Diurnal-nocturnal index β also differed between months (P < 0. 01),and also β value was 0.55 > 13 /24,which indicate that black muntjac is strictly diurnal animal. In the summer,the black muntjac reduced activity during the day owing to direct solar radiation and high temperature,but increased activity during the night.Black muntjac was not active between 11∶ 00 and 15∶ 00,and between 1∶ 00 and 4∶ 00,the γ value also showed no significant difference (P > 0. 05). There were two high peaks of the daily activity in summer months - between 6∶ 00 and 8∶ 00,and between 17∶ 00 and 20∶00.In spring,summer and autumn,the activity pattern showed a double-peak pattern, but in winter,it became a single-peak.

Key words: Activity pattern, Black muntjac (Muntiacus crinifron), Infrared camera

关键词: 活动节律, 黑麂, 红外相机