摘要
测定了虎天牛幼虫空间分布型及聚集指标，得知虎天牛幼虫空间分布符合负二项分 布，少数也符合奈曼分布，且虎天牛幼虫属聚集分布，引起聚集的原因与环境因素有关。
From December, 1996 to April, 1997, the larvae of tiger longicorn beetle (Xylotrechus chinensis Chev. ) in the mulberry field were recorded and their spatial distribution was analyzed. It was found that the spatial distribution of the insect can be described by a binominal distribution model and, to a smaller extent, by Neyman distribution model. They were found to be distributed in an aggregation pattern, the cause of which is associated with the environment.
出处
《蚕学通讯》
2000年第1期12-15,共4页
Newsletter of Sericultural Science
关键词
桑虎天牛幼虫
空间分布型
桑树害虫
Tiger longicom beetle(Xylotrechus chinensis) spatial distribution
