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生态学杂志 ›› 2010, Vol. 29 ›› Issue (02): 339-343.

• 研究报告 • 上一篇    下一篇

广大腿小蜂对菜粉蝶蛹体型大小的产卵选择及后代发育表现

高珏晓;孟玲;李保平**   

  1. 南京农业大学植物保护学院昆虫学系|农业部作物病虫害监测与防控重点开放实验室|南京 210095
  • 出版日期:2010-02-10 发布日期:2010-02-10

Oviposition preference for Pieris rapae (lepidoptera: Pieridae) pupae body size and developmental performance of progeny in Brachymeria lasus (Hymenoptera: Chalcididae)

GAO Jue-xiao, MENG Ling, LI Bao-ping   

  1. Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Ministry of Agriculture, Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
  • Online:2010-02-10 Published:2010-02-10

摘要: 产卵选择与后代发育适合度之间的相关性是进化生态学的主要科学问题之一。为探究广大腿小蜂(Brachymeria lasus)对不同体型大小寄主的选择和后代发育表现的关系,采用饥饿方法处理4龄菜粉蝶(Pieris rapae)幼虫以获得体型大小(用体质量表示)差异较大的寄主蛹,供寄生蜂选择寄生。结果表明,广大腿小蜂显著偏好体型较大的寄主蛹,而且在体型较大的蛹内产雌性后代的概率更大;子代蜂体型大小与寄主蛹大小存在显著的正
相关性,但子代蜂发育历期与寄主蛹大小无相关性。研究说明,广大腿小蜂对菜粉蝶蛹的寄生选择与后代发育表现,符合“寄主大小质量”模型的预测。

关键词: 土地覆被变化, 水文响应, SWAT模型, 梭磨河流域

Abstract: The relationship between oviposition preference and progeny performance is one of the central themes in evolutionary ecology. To test whether the oviposition selection of mother parasitoids among hosts with different body size is in accordance with the performance of progeny parasitoids in Brachymeria lasus (Hymenoptera: Chalcididae), the host pupae of Pieris rapae (Lepidoptera: Pieridae) were manipulated by starvation at larval stages to obtain host pupae with wide variation in body size.  B. lasus obviously preferred large host pupae, and accordingly, allocated more female offspring. The body size of offspring parasitoids increased linearly with host pupa size, but the development time was un
affected by host pupa size. Our results supported the predictions of ‘host sizequality’ model.

Key words: Land-cover changes, Hydrological response, SWAT model, Suomo Basin