不同人工林喙尾琵甲种群季节性变化

Seasonal Variations of Population Dynamics of Blaps rynchopetera Fairmaire in Different Artificial Forests

喙尾琵甲(Blaps rynchopetera Fairmaire)成虫能分泌具有药用价值的防御液,是云南民间常用的一种药用昆虫。为探究其自然条件下成虫出现的高峰期和生活史,本研究选取大理大学校园6种人工林进行喙尾琵甲年周期监测,采用地陷阱法收集喙尾琵甲样品,记录自然状态下成虫捕获数量,分析不同林下捕获量差异。发现校园内人工林全年都能捕获到喙尾琵甲成虫,成虫出现呈双峰型的季节性变化,高峰期在2~4月和7~10月。不同人工林中喙尾琵甲成虫的捕获数量有差异,雪松林数量最多,竹林数量最少,浇溉频率导致土壤湿度改变是不同人工林喙尾琵甲成虫数量差异的原因。本研究首次开展喙尾琵甲年周期动态监测,为其野外监测时间选择和自然条件下养殖提供参考。

Blaps rynchopetera Fairmaire can secrete defense liquid with medicinal values,and therefore is a medicinal insect commonly used among the people in Yunnan.In order to explore annual cycle dynamics and life histories of adult insects under natural conditions,six plantations on the campus of Dali University were selected to monitor the annual cycle of the insect.Ground trap method was used to collect samples and record the number of adult Blaps rynchopetera Fairmaire captured under natural conditions,and to analyze the differences in the catches in different plantations.It was found that the adult Blaps rynchopetera Fairmaire can be caught throughout the year in the plantation in the campus,and the adult has a bimodal seasonal change,with the peak period from February to April and July to October.The numbers of adults caught in different plantations vary,with the largest number in cedar forests and the smallest in bamboo forests.The change in soil moisture caused by the frequency of irrigation is the reason for the differences in adults in different plantations.For the first time,this research carried out the dynamic monitoring of the annual cycle dynamic monitoring of Blaps rynchopetera Fairmaire,providing a reference for the selection of field monitoring time and breeding under natural conditions.