稻田越冬害虫及其捕食性节肢动物类群的空间分布动态  

Dynamics and spatial pattern of arthropod community in overwintering rice habitats in Guangzhou

作　　者：张娟[1] 曾玲[1] 梁广文[1] 陆永跃[1] 

机构地区：[1]华南农业大学昆虫生态研究室,广州510642

出　　处：《环境昆虫学报》2010年第3期299-306,共8页Journal of Environmental Entomology

基　　金：国家科技支撑计划项目(2008BADA5B01;2008BADA5B04)

摘　　要：采用人工拨查法调查了越冬稻田生境内节肢动物群落。共收集到水稻害虫及其天敌13类,分别隶属于3纲9目。其中捕食性的7类,包括蜘蛛1类、昆虫5种和蜈蚣1种;害虫3类,中性昆虫3类。青翅蚁形隐翅虫、蜘蛛和红火蚁是稻田越冬害虫的主要捕食者。应用相关分析和通径分析,研究青翅蚁形隐翅虫、蜘蛛、红火蚁、害虫蛹之间相关性,剖析了三种捕食者控制害虫蛹的途径。空间格局分析结果表明,害虫蛹多为聚集分布,青翅蚁形隐翅虫均为聚集分布;应用Taylor幂法则检验和Iwaom*-m方程检验,结果表明,2008年12月10日、12月17日、12月23日和12月30日调查的害虫蛹空间格局为聚集分布,2009年1月7日、2月20日和2月27日为均匀分布;青翅蚁形隐翅虫在整个调查过程中均为聚集分布。A systematical investigation on arthropod community was carried out in overwintering rice habitats, and 13 taxa of arthropod, including 7 taxa of predators, 3 taxa of insect pests and 3 taxa of neutral insects were collected. Paederus fuscipes Curtis,spiders and Solenopsis invicta Buren were the main predators. The results revealed that was obviously relative between the pest pupae and three predators,and so was among three predators,by use of the correlation and path analyses.The indices showed that most of spatial patterns of pest pupae were aggregative,and those of P.fuscipes all were aggregative. Taylor＇s power law models and Iwao m-m equations were presented,and those parameters proved that spatial patterns of pest pupae on 10th,17th,23rd,30th,Dec.,2008,were aggregative,while uniform on 7thJan., and 20th,27thFeb.,2009,and those of P.fuscipes all were aggregative.

关 键 词：稻田生境 越冬 节肢动物群落 种群动态 空间分布 

分 类 号：Q968.1[生物学—昆虫学]