摘要
【目的】明确多寄主型寄生蜂蝇蛹俑小蜂Spalangia endius对不同类型新寄主的偏好选择与适应性。【方法】选择分别以瓜实蝇Zeugodacus cucurbitae、南瓜实蝇Z.tau和家蝇Musca domestica的蛹为寄主饲养的蝇蛹俑小蜂成蜂,比较研究其对上述3种寄主中其他2种非饲养寄主的选择行为、寄生选择及适应性。【结果】与家蝇蛹相比,以瓜实蝇蛹为饲养寄主的蝇蛹俑小蜂成蜂偏好选择和寄生南瓜实蝇蛹,且在南瓜实蝇蛹上产生更多的子代;以南瓜实蝇蛹为饲养寄主的蝇蛹俑小蜂成蜂偏好选择和寄生瓜实蝇蛹,且在瓜实蝇蛹上产生更多的子代;而以家蝇蛹为饲养寄主的蝇蛹俑小蜂成蜂对瓜实蝇蛹和南瓜实蝇蛹的选择数量以及在选择和非选择试验条件下的寄生率与子代数量上并无显著差异。此外,以瓜实蝇和南瓜实蝇蛹为饲养寄主的蝇蛹俑小蜂成蜂分别更容易适应南瓜实蝇和瓜实蝇蛹。【结论】基于3种蝇的生态位关系,推测蝇蛹俑小蜂偏好选择和更容易适应与其饲养寄主有重叠生态位的新寄主。
【Aim】The objective of this research is to clarify the preference and adaptability of the generalist parasitoid Spalangia endius to different types of novel hosts.【Methods】We selected S.endius adults reared on the pupae of Zeugodacus cucurbitae,Z.tau and Musca domestica,respectively,and compared their selective behavior,parasitization preference and adaptability to the other two non-rearing hosts from the above three hosts.【Results】S.endius adults reared on Z.cucurbitae pupae preferred to select and parasitize Z.tau pupae over M.domestica pupae,producing more offspring on Z.tau pupae.Similarly,S.endius adults reared on Z.tau pupae tended to select and parasitize Z.cucurbitae pupae,producing more offspring as well.However,no significant difference was found in the number of the selected hosts,parasitism rate and number of offspring in choice and no-choice experiments when S.endius adults reared on M.domestica pupae were transferred to Z.cucurbitae and Z.tau pupae.In addition,S.endius adults reared on the pupae of Z.cucurbitae and Z.tau more easily adapted to the pupae of Z.tau and Z.cucurbitae,respectively.【Conclusion】Based on the niche relationship of the three fly species,it is inferred that S.endius has higher fitness to a new host that has an overlapping niche with its rearing host.
作者
李磊
韩冬银
张方平
陈俊谕
王建赟
叶政培
符悦冠
LI Lei;HAN Dong-Yin;ZHANG Fang-Ping;CHEN Jun-Yu;WANG Jian-Yun;YE Zheng-Pei;FU Yue-Guan(Key Laboratory of Integrated Pest Management on Tropical Crops,Ministry of Agriculture and Rural Affairs,Environment and Plant Protection Institute,Chinese Academy of Tropical Agricultural Sciences,Haikou 571101,China)
出处
《昆虫学报》
CAS
CSCD
北大核心
2022年第9期1177-1184,共8页
Acta Entomologica Sinica
基金
海南省自然科学基金项目(320RC694,319QN271)
中国热带农业科学院基本科研业务费专项资金(1630042017014)。
关键词
蝇蛹俑小蜂
瓜实蝇
南瓜实蝇
家蝇
寄生蜂
寄主适应性
寄生
Spalangia endius
Zeugodacus cucurbitae
Z.tau
Musca domestica
parasitic wasp
host adaptability
parasitism
