基于红外相机技术的广东曲江沙溪省级自然保护区兽类资源分析

2019年7月,使用网格法布设了11台红外相机首次对广东曲江沙溪省级自然保护区大中型兽类资源进行了调查研究,调查累计102天,累计回收1 123个相机工作日的数据,共拍摄到兽类独立有效照片数103张,鉴定出兽类3目6科9种,分别为黄腹鼬Mustela kathiah、鼬獾Melogale moschata、斑林狸Prionodon pardicolor、豹猫Prionailurus bengalensis、野猪Sus scrofa、小麂Muntiacus reevesi、赤腹松鼠Callosciurus erythraeus、倭花鼠Tamiops maritimus和红腿长吻松鼠Dremomys pyrrhomer,其中,斑林狸和红腿长吻松鼠为沙溪自然保护区新纪录种;发现相对多度指数最高的兽类是野猪,为29.39,分布最广泛的地栖兽类是鼬獾;建立兽类累积曲线发现前31天兽类种数上升较快,后71天趋于平缓;研究进一步证实了红外相机技术可以作为保护区兽类补充调查的重要手段,可以在保护区兽类物种编目、相对多度指数、分布现状与凭证标本等收集上发挥重大作用。

Analysis of Mammal Resources in Guangdong Qujiang Shaxi Provincial Nature Reserve based on the infrared Camera Technology

To understand the mammal resources in Guangdong Qujiang Sha-xi Provincial Nature Reserve,we deployed 11 infrared cameras in July 2019.With an intensive survey effort of 1123 camera-days,103 detections of mammal,including 9 species belonging to 6 families and 3 orders were obtained.They are Mustela kathiah,Melogale moschata,Prionodon pardicolor,Prionailurus bengalensis,Sus scrofa,Muntiacus reevesi,Callosciurus erythraeus,Tamiops maritimus and Dremomys pyrrhomer.Among them,P.pardicolor and D.pyrrhomer were first recorded.It was found that the mammal with the highest relative abundance index was S.scrofa(29.39)and the most widely distributed was M.moschata.The establishment of the animal cumulative curve showed that the number of mammals increased rapidly in the first 31 days and tended to be smooth in the after 71 days.This study further confirmed that the infrared camera technology can be used as an important means to supplement the survey of mammals in the reserve,it can play an important role in the collection of mammal species cataloguing,relative abundance,distribution status and voucher specimens.