紫金白溪自然保护区白鹇活动节律分析

The Analysis of Lophura nycthemera Activity Rhythm in Zijin Baixi Nature Reserve

2020年7月至2022年8月,利用红外相机技术对广东省紫金白溪自然保护区内白鹇的日活动节律进行了调查和分析.分析结果显示:白鹇的行为具有明显的昼行性,日活动节律有2个高峰期,分别出现在6∶00—7∶00和15∶00—16∶00,活动低谷期在12∶00.白鹇在不同季节内的日活动节律存在变化,冬夏季差异最为显著,日活动节律重叠程度最低(Δ=0.860,P<0.01).在相同季节的不同海拔上白鹇的活动节律也存在一定差异,主要体现在夏季.夏季高海拔带个体活动比低海拔带个体活动频繁,早晨更为活跃;低海拔带个体活动则在午后更为活跃.

From July 2020 to August 2022,the daily activity rhythm of Lophura nycthemera in Zijin Baixi Nature Reserve,Guangdong Province is systematically investigated and analyzed using infrared camera technology.The results show that the Lophura nycthemera′s behavior is diurnal,with daily activity concentrated between 4∶00 and 19∶00,peak activity occurring between 6∶00 and 7∶00,and from 15∶00 to 16∶00,and low activity occurring at 12∶00.The results of kernel density function analysis show that the daily activity rhythm changed in different seasons,the diffe-rence is most significant in winter and summer,and the overlap of daily activity rhythm is lowest(Δ=0.860,P<0.01).The diurnal activity rhythm of Lophura nycthemera is different in different altitudes,mainly reflecting that individuals in the high altitude zone are more active in summer than those in the low altitude zone,and are more active in the morning,while those in the low altitude zone are more active in the afternoon.