Avoidance of parasitized host by female wasps of Aphidius gifuensis (Hymenoptera:Braconidae):The role of natal rearing effects and host availability?

作     者：Ming-Zhen Pan Tong-Xian Liu Christian Nansen 

作者机构：Key Laboratory of Integrated Pest Management in CropsMinistry of Agriculture /Institute of Plant ProtectionChinese Academy of Agricultural SciencesSine-American Biological Control LaboratoryBeijingChina State Key Laboratory of Crop Stress Biology for Arid Areasand Key Laboratory of Northwest Loess Plateau Crop Pest Management of Ministry of AgricultureNorthwest A and F UniversityYanglingShaanxiChina Department of Entomology and NematologyUniversity of California DavisCAUSA 

出 版 物：《Insect Science》 (昆虫科学（英文版）)

年 卷 期：2018年第25卷第6期

页      面：1035-1044页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 09[农学] 

基　　金：the National Basic Research Program of Ministry of Science and Technology,China(973 Program,2012CB114105) National Natural Science Foundation of China (31272089) China Agriculture Research System (CARS一25一B一06) 

主　　题：host discrimination Myzus persicae self superparasitism Sitobion avenae 

摘      要：Natal rearing experience of animals may affect their behaviors,such as habitat selection and oviposition *** part of the overall fitness of insect parasitoids, successful host discrimination (distinguishing parasitized hosts from unparasitized hosts) is of paramount *** this study we examined whether and how parasitoids natal rearing experience would affect their host discrimination ability according to host *** established separate colonies ofAphidius gifuensis Ashmead by continual rearing on two hosts,Sitobion avenae E and Myzuspersicae (Suzler),and quantified self superparasitism and self superparasitism versus parasitism ratio for the four:combinations ofparasitoid colonies and host species (*** and ***)at four host densities (30,50,100 or 150 per plant).Results showed that self superparasitism *** by *** reared on *** was significantly higher than by those reared on ***,no matter whether the host densities were 30,50,100 or *** gifuensis reared on *** significantly superparasitized more *** than those reared on *** only when host density was *** superparasitism versus parasitism ratio of *** from both colonies was always lower on natal hosts than on new hosts,and the difference was more pronounced as the host density *** results suggested that natal rearing effects is important on host discrimination and oviposition decision of the parasitoid *** effects promoted the parasitoid s host adaptation and made them confer greater fitness.