基于自动相机技术对西伯利亚狍(Capreolus pygargus)季节性换毛序的测定

Measurement Method of Molt Sequence of Siberian Roe Deer (Capreolus pygargus) in Northeast China Based on Camera-Trapping

换毛是动物的物候现象,是了解动物适应季节更迭和环境的重要手段,受制于技术手段,野生动物的换毛序一直是动物学研究的难点。随着自动相机在野生动物监测的应用和普及,使基于自动相机影像数据对动物季节性换毛序的研究成为可能。本文以东北林区常见的西伯利亚狍为研究对象,基于自动相机监测技术,对不同地区狍春季和秋季换毛过程进行研究,分析狍季节性换毛的启动时间、换毛过程、节律、结束时间等,得出以下结果:在不同纬度地区,狍的换毛序基本一致。与较低纬度地区相比,狍在高纬度地区秋季换毛启动早,换毛持续的时间短;春季换毛启动晚,持续的时间长。

Molt is a phenological phenomenon of animals,and an important means to understand the adaptation of animals to seasonal changes in their environments.Due to the technical limitations,the sequence of molt among wild animals has been difficult to document in zoology research.With the application and popularization of camera-traps in wildlife monitoring,it is possible to study the seasonal molting schedule of animals based on the image data of camera-traps.We used camera-traps to study the molting process of Siberian roe deer in spring and autumn in different areas.We analyzed the time of onset of molt,the molting process,the sequency and the end time of seasonal molting with the following results.At different latitudes the molting sequence of roe deer is basically the same.Compared with lower latitudes,roe deer molt starts earlier and lasts for a shorter time period in autumn at high latitudes,and starts later and lasts longer in spring.