南蝠捕食行为及其对稻田虫害发生的影响  

Effect of Ia io Predatory Behavior on Pest Occurrence in Rice Field

作　　者：韩宝银[1] 贺红早 

机构地区：[1]贵州师范学院化学与生命科学学院,贵州贵阳550018 [2]贵州省生物研究所,贵州贵阳550009

出　　处：《贵州农业科学》2012年第4期115-117,共3页Guizhou Agricultural Sciences

摘　　要：为了解南蝠(Ia io)在维持稻田生态系统稳定性中的作用,采用粪便分析和直观法,研究了南蝠的捕食行为及其对稻田虫害发生的影响。结果表明:南蝠是控制农田害虫的有效天敌之一,在其捕食区域内稻田病虫害较轻,2～3km半径区域水稻的平均产量比6～7km半径区域增产98.2kg/667m2;南蝠的食物组成除鸟类外,还有鞘翅目、鳞翅目、半翅目、直翅目、膜翅目和蜱螨等昆虫/生物,多数种类昆虫均是水稻害虫或病害的传播者。南蝠在维护稻田生态系统稳定性和提高农作物产量方面具有重要的作用。The effect of Ia io predatory behavior on pest occurrence in rice field was studied by excrement analysis and the direct-vision method to know the role of Ia io in ecosystem stability of rice field.Ia io is one of effective natural enemies to control pests in rice field.The average rice yield in 2~3 km radius area was 98.2 kg/667m2 higher than in 6~7 km radius area.The diet composition for Ia io includes Coleoptera,Lepidoptera,Hemiptera,Orthoptera,Hymenoptera,and Acaria etc.besides birds.Because most insect species are spreaders of rice pests and diseases,Ia io can play an important role in maintenance of ecosystem stability in rice field and improvement of rice yield.

关 键 词：南蝠 捕食 稻田 生态系统稳定性 

分 类 号：S476[农业科学—农业昆虫与害虫防治]