秦岭蝮蛇的活动节律和反捕行为研究

STUDY ON CIRCADIAN ACTIVITY AND ANTIPREDATION BEHAVIOUR OF AGKISTRODON QINLINGENSIS

本文观察研究了秦岭蝮蛇的活动节律和反捕行为。蝮蛇在不同季节活动高峰出现的时间不同，夏季晴天每天上午８点３０分～９点３０分，下午１４点３０分～１８点３０分分别有一活动高峰。下雨前后活动明显加强。蝮蛇的身体姿态也呈明显的节律变化：夏季上午１０点以前，身体松散放置，１０～１８点，身体姿势多呈紧密缠绕或多条堆集在一起。单条蝮蛇多顺时针方向盘卷。蝮蛇受惊吓时的反应行为有收缩、歪头、摆尾、吐舌和逃跑，被捉时的反捕行为有张口、露齿、咬、挣脱，分泌粘臭的物质。

Circadian activity and antipredation behaviour of Agkistrodon qinlingensis are observed.The time of activity peeks of Agkistrodon qinlingensis changes in different seasons.There are four activity peeks during a day:8∶30～9∶30am,2∶30～6∶30pm,dawn and dusk in summer.The activities become more frequent before and after a rainfall.Postures of the snake change regularily everyday in normal wheather.The snakes lie loosely before 10am,wind close together or several ones pile up from 10am to 6pm.One snake always coils clockwise.Behaviours of Agkistrodon qinlingensis when alarmed include:contracting,shaking tail,stretching out its tongue,running away.Antipredation behaviours of Agkistrodon qinlingensis include:opening mouth,showing teeth,biting,struggling,secreting sticky offensive substance.