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Position: Home > Articles > A preliminary study on the spatial distribution pattern of Dysmicoccus neobrevipes(Beardsley) Plant Protection 2009,35 (3) 81-83

新菠萝灰粉蚧雌成虫空间分布型的初步研究

作  者:
张小冬;陈泽坦;钟义海;陈伟
单  位:
中国热带农业科学院环境与植物保护研究所
关键词:
新菠萝灰粉蚧;空间分布型;聚集度;剑麻
摘  要:
本文通过对新菠萝灰粉蚧的雌成虫进行田间调查,应用David和Moore的聚集性指标、Cassie的指标C和Kuno的指标CA、Lloyd的平均拥挤度m*及聚块性指标m*/m3个聚集性指标及Taylor的幂法则和Iwao的m*-m的回归法对新菠萝灰粉蚧雌成虫的空间分布型进行了分析和检验。结果表明,其在剑麻株内的空间分布为聚集分布,且具有密度依赖性,引起聚集的原因主要是新菠萝灰粉蚧雌成虫自身习性,与环境因素也有一定关系。
译  名:
A preliminary study on the spatial distribution pattern of Dysmicoccus neobrevipes(Beardsley)
作  者:
Zhang Xiaodong,Chen Zetan,Zhong Yihai,Chen Wei(Environment and Plant Protection Institute,CATAS,Danzhou 571737,China)
关键词:
Dysmicoccus neobrevipes;spatial distribution;aggregation degree;sisal
摘  要:
The spatial distribution pattern of the larvae of Dysmicoccus neobrevipes(Beardsley) female adults was studied by 3 aggregation indices and regressional analysis.The results showed that the spatial distribution pattern of the larvae was aggregated distribution in individual plants of the sisal,and density-dependent.The aggregation of the populations of this insect was due to their behavior and some environmental factors.

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