枣大球蚧和球蚧蓝绿跳小蜂空间分布型吻合程度  

Coincidence level in spatial distribution of Eulecanium gigantea and Blastothrix sericae

作　　者：王玉兰[1] 刘爱华[1] 张静文[1] 赵边建[2] 岳朝阳[1] 张新平[1] 唐丽[1] 

机构地区：[1]新疆林业科学院森林生态研究所,新疆乌鲁木齐830002 [2]新疆维吾尔自治区林业厅天然林保护办公室,新疆乌鲁木齐830000

出　　处：《浙江农林大学学报》2012年第5期799-802,共4页Journal of Zhejiang A&F University

基　　金：农业部公益性行业科研专项项目(201103024);科技部农业成果转化资金项目(2011GB2G400004)

摘　　要：采用多个聚集度指标和回归分析法对枣大球蚧Eulecanium gigantea及其主要天敌球蚧蓝绿跳小蜂Blastothrixsericae的空间分布格局进行研究。各聚集度指标均表明:枣大球蚧及其球蚧蓝绿跳小蜂在空间上的分布格局均是聚集分布;Taylor幂法则、Iwao的回归分析法也表明:枣大球蚧及其球蚧蓝绿跳小蜂在空间上的分布格局也是聚集分布,且聚集强度随种群密度的升高而增加;这种分布形式的一致性,有力地提高了天敌对寄主的自然控制能力。The spatial distribution patterns of Eulecanium gigantea and its natural enemies Blastothrix sericae were determined, the equations of optimal sampling were formulated based on the regression models with mul- tiple aggregation indices. The result showed that spatial distribution pattern of Eulecanium gigantea and Blas- tothrix sericae belonged to aggregative distribution. Regression analysis of Iwao and Tayler also obtained a sim ilar conclusion, Eulecanium gigantea and Blastothrix sericae belonged to aggregative distribution and with the population density increasing, aggregation index increased. The coincidence in distribution effectively in- creased the control capacity of natural enemies on their hosts. [Ch, 3 tab. 10 ref. ]

关 键 词：森林保护学 枣大球蚧 球蚧蓝绿跳小蜂 空间分布型 

分 类 号：S763.3[农业科学—森林保护学]