| 斑痣悬茧蜂寄生对甜菜夜蛾幼虫行为的影响 |
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| 引用本文： | 郭林芳,孟玲,李保平.斑痣悬茧蜂寄生对甜菜夜蛾幼虫行为的影响[J].南京农业大学学报,2010,33(5). |
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| 作者姓名： | 郭林芳 孟玲 李保平 |
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| 作者单位： | 南京农业大学植物保护学院/农业部作物病虫害监测与防控重点开放实验室,江苏,南京,210095 |
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| 基金项目： | 国家自然科学基金项目(30871670) |
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| 摘 要： | 采用固定时间间隔扫描抽样观察法,在大透明罩内观察了被斑痣悬茧蜂寄生和未寄生甜菜夜蛾幼虫的活动、取食和栖境选择行为。结果表明:到寄主幼虫生长后期,被寄生幼虫的取食行为比例(3.74%)极显著低于未被寄生幼虫(15.71%),空间位移比例(8.19%)极显著低于未被寄生幼虫(32.04%),在植物叶正面的比例(47.00%)极显著高于未被寄生幼虫(24.27%),但在叶背面与未被寄生的寄主幼虫无显著差异。在植株的上部、中部和外部,两类寄主幼虫出现的比例直到幼虫生长后期才表现出显著差异。在植株上部和外部,被寄生的寄主幼虫出现的比例(分别为26.09%、5.89%)显著低于未被寄生幼虫(38.88%、17.50%),在植株中部则相反,被寄生幼虫出现的比例(63.57%)显著高于未被寄生幼虫(35.74%);然而在植株的下部,两类寄主幼虫只在幼虫生长前期表现出差异,被寄生的寄主幼虫出现的比例(5.50%)极显著低于未被寄生幼虫(21.96%)。
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| 关 键 词： | 寄生 适应性 行为 寄生性昆虫 寄主操纵 |
Behaviors of Spodoptera exigua larvae as affected by parasitization of Meteorus pulchricornis (Braconidae,Hymenoptera) |
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| GUO Lin-fang,MENG Ling,LI Bao-ping.Behaviors of Spodoptera exigua larvae as affected by parasitization of Meteorus pulchricornis (Braconidae,Hymenoptera)[J].Journal of Nanjing Agricultural University,2010,33(5). |
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| Authors: | GUO Lin-fang MENG Ling LI Bao-ping |
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| Institution: | GUO Lin-fang,MENG Ling,LI Bao-ping* ( College of Plant Protection/Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects,Ministry of Agriculture,Nanjing Agricultural University,Nanjing 210095,China) |
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| Abstract: | To understand the adaptation of behaviors of host larvae manipulated by parasitism of parasitoids,we observed behaviors on potted soybean plants of Spodoptera exigua larvae parasitized by Meteorus pulchricornis by using the fixed-interval time scan sampling method. The results showed that up to the later developmental stage,parasitized host larvae were significantly different from healthy host larvae in proportion feeding behavior ( 3. 74% versus 15. 71% ) and proportion spatial displacement ( 8. 19% versus... |
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| Keywords: | parasitism adaptation behavior parasitoids host manipulation |
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