基于红外相机技术的海南麂日活动节律研究
An Infrared Camera Technology-based Investigation of the Daily Activity Rhythm of Muntiacus nigripes
丁伟 1方宗文 2文卓玉 3李佳灵 2刘辉3
作者信息
- 1. 海南大学生态学院,海南 海口 570228
- 2. 海南热带雨林国家公园管理局五指山分局,海南五指山 572299
- 3. 海南大学热带农林学院,海南 海口 570228
- 折叠
摘要
通过设置 50 台红外相机,对海南热带雨林国家公园五指山片区内的海南麂进行了 5 年的监测(2015 年 3月至 2020 年 2 月),综合分析所有拍摄到的海南麂照片.采用日活动差异指数α、昼夜指数β、季节性活动强度指数γ等 3 个参数,对海南麂的活动节律进行分析.同时,利用核密度估计方法,计算了同一领域内海南麂和野猪活动节律的重叠程度.研究结果如下:(1)各月份的日活动差异指数α不存在显著差异(t=0.001,df=11,P＜0.05).一天之中,海南麂活动的高峰集中出现在 6∶00～10∶00 和 16∶00～18∶00,峰值分别是 7∶00 和 17∶00,呈典型的双峰型.(2)在各个月份中,昼行性指数的并未发现明显差异(t=0.610,df=11,P＞0.05).同时,β的平均值为 0.68,大于或等于0.54(13/24),表明五指山片区内的海南麂呈昼行性生活.(3)在不同季节类别中,季节性活动强度指数γ存在显著差异(χ2=12.028,df=3,P=0.007,P＜0.05).(4)海南麂和野猪的活动时间重叠系数为 0.82,日活动节律曲线存在显著差异(△4=0.82,P=0.002,P＜0.01),说明它们的活动时间有明显的不同,表明两者活动时间有显著的分化.
Abstract
By deploying 50 infrared cameras,the Muntiacus nigripes in the Wuzhishan Area of the Hainan Tropical Rainforest National Park were monitored for five years from March 2015 to February 2020,and a com-prehensive analysis was conducted based on the collected photos.The activity rhythm of M.nigripes was ana-lyzed by using three different factors:daily-discrepancy index(DDI),diurnal-nocturnal index(DNI),and sea-sonal-activity index(SAI).Meanwhile,the overlap of activity rhythms between M.nigripes and Sus scrofa in the same area was determined through kernel density estimation.The results are as follows:(1)There was no significant difference in the DDIs between each month(t=0.001,df=11,P＞0.05).During the day,the most active periods of M.nigripes concentrated 6:00～10:00 and 16:00～18:00,in which the peak appeared at 7:00 and 17:00,showing a typical bimodal pattern.(2)There was no significant difference in the DNIs between each month(t=0.610,df=11,P＞0.05).The average DNI was 0.68,bigger than 0.54(13/24),which showed that the M.nigripes in the Wuzhishan Area were diurnal.(3)There were significant differences in SAIs between dif-ferent season categories(χ2=12.028,df=3,P=0.007,P＜0.05).(4)The overlap coefficient of activity rhythm between M.nigripes and S.scrofa was 0.82,and the difference between their daily activity rhythm curves was significant(△4=0.82,P=0.002,P＜0.01),indicating that the activity times of the two species were signifi-cantly differentiated.
关键词
海南麂/红外相机技术/日活动节律Key words
Infrared camera/Muntiacus nigripes/Activity rhythm引用本文复制引用
出版年
2024
NETL
NSTL
万方数据