| 七星瓢虫和多异瓢虫对三叶草彩斑蚜的功能反应研究 |
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| 引用本文： | 刘乾,刘长仲,孙鹭,窦晓青.七星瓢虫和多异瓢虫对三叶草彩斑蚜的功能反应研究[J].植物保护,2009,35(2):78-80. |
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| 作者姓名： | 刘乾 刘长仲 孙鹭 窦晓青 |
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| 作者单位： | 甘肃农业大学草业学院昆虫学系,甘肃农业大学草业生态系统教育部重点实验室,兰州,730070 |
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| 基金项目： | 甘肃省自然科学基金，国家科技支撑计划，草业生态系统部省共建重点实验室项目 |
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| 摘 要： | 研究了七星瓢虫和多异瓢虫在不同猎物密度下对三叶草彩斑蚜的功能反应，结果表明，七星瓢虫和多异瓢虫对三叶草彩斑蚜密度的功能反应可用HollingⅡ方程较好地拟合，经卡平方检验误差不显著（p>0.05）；捕食量在一定范围内随猎物密度的增加而增大；而七星瓢虫和多异瓢虫对三叶草彩斑蚜的捕食量随自身密度的增加而减少，相互之间存在一定的干扰，自身密度的功能反应能用Hassell数学模型较好地反映，经卡平方检验误差不显著（p>0.05）。
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| 关 键 词： | 七星瓢虫 多异瓢虫 三叶草彩斑蚜 功能反应 捕食作用 |
Functional responses of Coccinella septempunctata and Hippodamia variegata to Therioaphis trifolii |
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| Liu Qian,Liu Changzhong,Sun Lu,Dou Xiaoqing.Functional responses of Coccinella septempunctata and Hippodamia variegata to Therioaphis trifolii[J].Plant Protection,2009,35(2):78-80. |
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| Authors: | Liu Qian Liu Changzhong Sun Lu Dou Xiaoqing |
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| Institution: | College of Grassland Science, Key Laboratory of Grassland Ecosystem of Education Ministry, Gansu Agricultural University, Lanzhou730070, China |
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| Abstract: | In the laboratory, the functional responses of Coccinella septempunctata Linnaeus and Hippodamia variegata (Goeze) to different densities of Therioaphis trifolii (Monell) were studied, The results showed that the HollingⅡ equation could well describe the functional responses of C. septempunctata and H. variegata to the T. trifolii, and the error is not significant (p＞0.05) by χ2 test. The predatory number of C. septempunctata and H. variegata to T. trifolii increased with the increase of prey density, but decreased with the increase of their own density, and they was interactive with each other. The Hassell mathematical model could reflect their functional responses, and the error is not significant (p＞0.05) by χ2 test. |
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| Keywords: | Coccinella septempunctata Hippodamia variegata Therioaphis trifolii functional responses predation |
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