茶毛虫及其天敌的生态位

通过对茶毛虫及其天敌的时间和空间生态位的调查，测定生态位宽度、重叠和比例相似性．在时间生态位上，宽度序列为茶毛虫＞ 白斑猎蛛＞ 茶毛虫绒茧蜂＞ 茶毛虫黑卵蜂＞ 寄蝇，重叠序列与比例相似性序列均与宽度序列相同；在空间生态位上，宽度序列为茶毛虫＞ 白斑猎蛛＞ 茶毛虫绒茧蜂＞ 寄蝇＞ 茶毛虫黑卵蜂，重叠序列为茶毛虫黑卵蜂＞ 白斑猎蛛＞ 茶毛虫绒茧蜂＞ 寄蝇，比例相似性序列与时间生态位序列相同；在时间—空间二维生态位上，生态位宽度、重叠和比例相似性序列均与时间生态位序列相同．在生态位研究的基础上，分析了茶毛虫及其天敌的发生分布规律和相互关系，探明了茶毛虫各虫期的优势天敌，探讨了天敌在茶毛虫综合治理中的控制作用

Niches of tea caterpillar (Euproctis pseudoconspersa) and its natural enemies

The niche breadth, overlap and the proportional similarity of tea caterpillar (Euproctis pseudoconspersa) and its natural enemies were estimated by means of investigating their single dimensional temporal and spatial niches. On temporal niches, the sequence of breadth was E. pseudoconspersa > Evarcha albaria > Apanteles conspersae > Telenomus euproctidis > Tachina sp. & Exorista sp., the sequences of overlap and proportional similarity were the same as the sequence of breadth. On spatial niches, the sequence of breadth was E.pseudoconspersa > E.albaria > A.conspersae > Tachina sp. & Exorista sp. > T.euproctidis, the sequence of overlap was T.euproctidis> E.albaria > A.conspersae>Tachina sp. & Exorista sp., the sequence of proportional similarity was the same as that on temporal niches. On temporal spatial niches, the sequences of breadth, overlap and proportional similarity were the same as the sequences on temporal niches. Based on niches, the occurrence and mutual relationships of tea caterpillar and its natural enemies were analysed, the dominant enemies at different stages of tea caterpillar were verified, and the effect of the enemies on the comprehensive management of tea caterpillar was discussed.