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(-bN-1t)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。
Predation of Aphis gossypii by Forficula vicaria adults was determined in the laboratory. The results showed that the predator-prey model fitted HollingⅡ（1959）：Na=0. 9936Nt/（1＋0. 0041Nt）. The largest dai-ly predation number was 176. 9, and the best seeking density was about 92 according to Holling Ⅲ new functional response model Na=a·exp（-bN-1t）by Wang Shize et al （1988）. The relationships between searching efficien-cy 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. vicariadensity were described by Hassell （1969）model E=QP-m and Beddington （1975）model E=aT/[1＋btw（P-1）] as E=0. 6318P-1.3693 and E=0.7384/（2.2668P-1.2668）, respectively;Beddington （1975）model could de-scribe the relationships between searching efficiency and F. vicariadensity better than Hassell （1969）model. The relationships between searching density and A. gossypii and F. vicariadensities were described by Beddington （1975）model E=a/[1＋aThNa＋btW（P-1）]. as E=0.7384/（2. 2668P＋0. 00404Na-1. 2668）, suggesting that the searching efficiency declined when F. vicaria and A.gossypi idensities increased.
出处
《植物保护》
CAS
CSCD
北大核心
2014年第5期70-74,共5页
Plant Protection
基金
甘肃省临夏州科技计划项目(2010-L-3-04)
关键词
迭球螋
棉蚜
功能反应
寻找效应
Forficula vicaria
Aphis gossypii
functional response
searching efficiency
