洱海周边2种寄生蜂对拟环纹豹蛛和星豹蛛卵孵化的影响  

Effects of two parasitoid wasp species on egg hatching of Pardosa pseudoannulata and Pardosa astrigera （Araneae, Lycosidae） around Erhai Lake

作　　者：杨庭榜 石爱民[2] 马艳滟 冯萍 杨自忠 

机构地区：[1]云南省药用昆虫及蛛形类资源开发利用工程实验室,云南大理671000 [2]西华师范大学生命科学学院,四川南充637002

出　　处：《蛛形学报》2013年第2期110-115,共6页Acta Arachnologica Sinica

基　　金：国家自然科学基金（31060070）;云南省科技厅应用基础研究面上项目（2009CD092）;云南省教育厅重点基金项目（20112107）资助项目

摘　　要：为探讨Hidryta sp．和Idris sp．对云南洱海周边拟环纹豹蛛Pardosa pseudoannulata（Boes．＆Str．）和星豹蛛Pastvigera C．L．Koch卵孵化的影响，对具卵囊的拟环纹豹蛛和星豹蛛进行为期1年的野外采集和室内卵囊孵化观察，发现Hidryta sp．寄生蜘蛛卵囊后，每个卵囊内仅羽化出1只蜂，不再有幼蛛孵化出；而被Idris sp．寄生后每个卵囊羽化出一至数十只蜂，仍有幼蛛孵化出。比较未被寄生与被寄生蜘蛛卵囊的孵化量显示，拟环纹豹蛛未被寄生与被Idrissp．寄生后的孵化量间无显著差异（P〉0．05）；星豹蛛未被寄生与被Idris sp．寄生后的孵化量问存在显著差异（P〈0．01）。比较单位个体孵化量显示，Hidrytasp．对拟环纹豹蛛卵孵化的影响程度大于Idris sp．；而Hidrytasp．对星豹蛛卵孵化的影响程度小于Idris sp．。In order to investigate the effects of Hidryta sp. and Idris sp. on egg hatching of Pardosa pseudoannulata and P. astrigera around Erhai Lake, Yunnan province, P. pseudoannulata and P. astrigera with egg sacs were collected, and egg sacs hatching were observed for one year. Typically, when an egg sac is parasitized by Hidryta sp., there is only one wasp emerge, and no spiderling. With regard to Idris sp., the number of parasitoids emerge from per egg sac ranges from one to dozens, and still with spiderling hatching out. Between spider egg sacs unparasitized and parasitized by Idris sp., there is no significant difference in hatching output of P. pseudoannulata （P 〉 0.05）, while there shows significant difference in hatching output ofP. astrigera （P〈0.01）. Individual hatching output shows that the effect level of Hidryta sp. on P. pseudoannulata is greater than Idris sp., and the effect level of Hidryta sp. on P. astrigera is less than ldris sp..

关 键 词：洱海 Hidryta SP Idris SP 拟环纹豹蛛 星豹蛛 卵孵化 

分 类 号：S435.622.9[农业科学—农业昆虫与害虫防治]