农田蜘蛛群落结构及动态分析

Analysis on the Structure of Spider Community and Developments in Population in Cultivated Land

对石河子地区农田及其附近典型生境中的农林蜘蛛种类、群落结构及优势种群的消长动态进行了初步研究和分析，并对优势种群的保护与利用做了一些探讨。在农田及其附近典型生境中的农林蜘蛛种类有１２科、３３属、４５种。蜘蛛在不同生境和时间下群落特征及多样性有明显的差异性。蜘蛛种群的消长动态是从５月中下旬到６月初，白色消遥蛛和黄褐新圆蛛在数量上占绝对优势；微蛛和花蟹蛛数量在６月下旬先后达到最高峰；在７月中旬三突花蛛、跳蛛达到最高峰；到８月上旬，微蛛。

In this paper,the structure of the spider community and its diversity and developments in population in cutivated land in Xinjiang Shihezi have been studied.The total number of spiders collected was 3257 which includes 12 families,33 genues and 45 species.The diversities of the spider community at habitat and time sequence are different.Great changes have taken place on population with time sequence.