入侵害虫螺旋粉虱的田间种群动态及其对本地节肢动物群落的影响  

Population Dynamics of an Alien Invasive Pest,Aleurodicus disperses and Its Impacts on Local Arthropod Communities

作　　者：陈丽云[1] 朱麟[2] 肖彤斌 陈绵才 林珠凤 符悦冠[4] 

机构地区：[1]海南大学环境与植物保护学院,海南儋州571737 [2]海南师范大学生命科学学院,海南海口571158 [3]海南省农科院环境与植物保护研究所,海南海口571100 [4]中国热带农业科学院环境与植物保护研究所,海南儋州571737

出　　处：《热带作物学报》2010年第5期840-844,共5页Chinese Journal of Tropical Crops

基　　金：农业部公益性行业(农业)科研专项经费项目"新入侵危险性有害生物螺旋粉虱防控技术研究与示范(20083023)"资助

摘　　要：采用随机取样法,调查海南海口地区洋紫荆和番石榴2种螺旋粉虱寄主,记录2种寄主上螺旋粉虱种群动态、受螺旋粉虱危害植株与未受害植株上的节肢动物群落种群及数量,探讨螺旋粉虱种群波动对受害寄主植株上的节肢动物群落种类及数量变动关系。结果表明:(1)螺旋粉虱在海南为害高峰期为4月～9月份,以及11月份;(2)本地螺旋粉虱天敌数量较少,未能对螺旋粉虱达到有效控制;(3)螺旋粉虱的种群波动,不会直接导致受害寄主植株上的节肢动物群落结构的变化;(4)受害与未受害寄主植株上的植食性昆虫年发生量差异显著。Field population dynamics of spiraling whitefly, Aleurodicus disperses, attacking Bauhinia blakeana and Psidium guajava, were investigated using random sampling method, focusing on its impacts on local arthropod communities.The population of Aleurodicus disperses, the number of arthropods on damaged and undamaged plants were recorded.The results indicated that：（1） In Haikou, the whitefly attacked the two plant species around the year, with highest populations from April to September, and November.（2） Number of local natural enemies was so small, that it couldn＇t effectively have the whitefly population controlled below the economic level.（3） The fluctuation of whitefly population did not directly lead to the changes of local arthropod community structures, and （4） Significant difference existed in the number of herbivorous insects between the damaged and undamaged host plants all year round.

关 键 词：螺旋粉虱 种群动态 节肢动物 群落结构 

分 类 号：Q968.1[生物学—昆虫学]