| 刘萍1, 沈平1*, 吴建华2, 朱惠英1, 杨学毅1, 常承秀1, 张永.迭球螋成虫对棉蚜的捕食作用[J].植物保护,2014,40(5):70-74. |
| 迭球螋成虫对棉蚜的捕食作用 |
| Predation of Aphis gossypii by Forficula vicaria adult |
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| DOI： |
| 中文关键词: 迭球螋 棉蚜 功能反应 寻找效应 |
| 英文关键词:Forficula vicaria Aphis gossypii functional response searching efficiency |
| 基金项目:甘肃省临夏州科技计划项目(2010-L-3-04) |
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| 中文摘要: |
| 在室内测定迭球螋(Forficula vicaria Semenov)成虫对棉蚜(Aphis gossypii Glover)的捕食作用。结果表明, 迭球螋对棉蚜的捕食功能反应符合HollingⅡ(1959)型模型, 拟合的圆盘方程为 Na=0.993 6 Nt/(1+0.004 1 Nt); 根据汪世泽等(1988)提出的 HollingⅢ型功能反应新模型 Na=a ?exp(- bNt -1 )拟合, 求得日均最大捕食量176.9头, 最佳寻找密度92头; 利用Holling(1959)寻找效应与猎物密度关系公式 E=a/(1+aThNt ), 结果表明寻找效应随猎物密度的增加而降低; 利用Hassell (1969)模型 E=QP-m 和 Beddington(1975)模型 E=aT/［1+btw(P-1)］对寻找效应与迭球螋成虫密度之间的关系进行拟合, 拟合方程分别为: E=0.631 8 P -1.369 3 和E =0.738 4/(2.266 8 P -1.266 8), Beddington模型更好地反映了寻找效应与迭球螋密度之间的关系; 寻找效应与迭球螋密度和棉蚜密度之间的关系用Beddington(1975)模型 E=a/［1+aThNa+btW(P-1)］进行描述, 拟合方程: E=0.738 4/(2.266 8 P+0.004 04 Na -1.266 8), 寻找效应随迭球螋密度和猎物棉蚜密度的增大而下降。 |
| 英文摘要: |
| Predation of Aphis gossypii by Forficula vicaria adults was determined in the laboratory. The results showed that the predator prey model fitted Holling Ⅱ (1959): Na=0.993 6 Nt/(1+0.004 1 Nt). The largest daily predation number was 176.9, and the best seeking density was about 92 according to Holling Ⅲ new functional response model Na=a ?exp(- bNt -1 ) by Wang Shize et al (1988) . The relationships between searching efficiency and prey density were studied by using Holling (1959) model: E=a/(1+aThNt ), showing that the searching efficiency decreased as the prey density increased. The relationships between searching efficiency and F. vicaria density were described by Hassell (1969) model E= QP-m and Beddington (1975) model E=aT/［1+ btw (P-1)］ as E=0.631 8 P -1.369 3 and E =0.738 4/(2.266 8 P -1.266 8), respectively; Beddington (1975) model could describe the relationships between searching efficiency and F. vicaria density better than Hassell (1969) model. The relationships between searching density and A. gossypii and F. vicaria densities were described by Beddington (1975) model E=a/［1+aThNa+btW(P-1)］ as E =0.738 4/(2.266 8 P+0.004 04 Na-1.266 8), suggesting that the searching efficiency declined when F. vicaria and A.gossypii densities increased. |
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