微量元素对虫草蝠蛾幼虫生长发育的影响

按月采样,分析测定虫草蝠蛾幼虫体微量元素的组成。应用Q模式系统聚类方法,分析了幼虫受环境影响引起的元素代谢变化。结果表明虫体所含元素与环境温度的变化及自身的生理活动密切相关。5、10月份幼虫组的元素含量相近,前者正当幼虫结束休眠后恢复活动的时期,后者是幼虫处于准备进入越冬的前期,两组幼虫此时均处于取食高峰期。3、4月份组的亦较接近,幼虫正渐恢复活动但不取食。8月份幼虫蜕皮前后,消耗较大,需摄取大量食物。计算结果表明7、9月份的元素含量接近,这与上述现象有一定联系;应用对应因子分析法得到的结果是:元素Fe、P对10、11月份幼虫组的贡献值显著;Na、Ca、Mg对8、9月份的贡献值显著;Cu、Zn、Co、Cd、Si对4、5月份的贡献值显著。

INFLUENCE OF TRACE ELEMENTS ON THE LARVAE GROWTH OF THE GHOST MOTH (Hepialus)

This paper dealt with comparative studies on the trace elements inside Ghost Moth's larva(Hepialus) grown in 12 distinct months during one year. 204 trace elements variablsc were measured from the 12 groups larva, division of the groups into months, which were collected monthly during one year. All the variables and some combinations of them were explored to study the relationships among elements, feeding, behaviour and development etc. Together with all the investigation on ecological environments of the larva, by using the mathematical method we studied that the growth of the larva were influenced by the elements which were absorbed by itself. The results of clustering analysis showed that the elements contents in the body of the larva were tuned by surrounding temperature. The elements inside the larva collected in Oct. arc almost equal they collected in May. The larva must moved severe and so they need to feed after hibernation in May, and stored tood for winter sleep in Oct. These need led to the addition of eating substances. The resulte of correspondence analysis demonstrated that the larva absorb more elements Fe P from nourishments in Oct. and Nov. than in other months, and absorb more Na Ca Mg in Aug. and Sep., and absorb more Cu Zn Co Cd Si elements in Apr. and May.