Dominic Amalraj D, Das P K
Vector Control Research Centre (Indian Council of Medical Research), Indira Nagar, Pondicherry.
Southeast Asian J Trop Med Public Health. 1998 Mar;29(1):177-83.
Predation by instars of Toxorhynchites splendens on aquatic stages of Aedes aegypti was studied by estimating functional response parameters such as attack rate (a') and handling time (Th) in the laboratory. The predator displayed typical type-II functional response, similar to that of most insect predators when presented with increasing densities of any given size class of prey. Second instar predator attacked prey significantly at higher rate than the other instars. Small prey were attacked at higher rate than the predation on larger prey. Except second instar predator, other instars showed significant reduction in a' with increase in Th. Foraging surface area did not influence the predation rate. Predation was high at high water temperature and this was more prominent in the second instar predator. However, prey handling time was independent of the water temperature. Modeling of the predation of mixed age populations of prey and the predator through this short-term functional response experiment is discussed.
通过在实验室中估计诸如攻击率（a'）和处理时间（Th）等功能反应参数，研究了华丽巨蚊幼虫对埃及伊蚊水生阶段的捕食情况。捕食者表现出典型的II型功能反应，类似于大多数昆虫捕食者在面对任何给定大小类别的猎物密度增加时的反应。二龄捕食者攻击猎物的速率明显高于其他龄期。小型猎物被攻击的速率高于对大型猎物的捕食速率。除二龄捕食者外，其他龄期的a'随着Th的增加而显著降低。觅食表面积不影响捕食率。在高水温下捕食率较高，这在二龄捕食者中更为明显。然而，猎物处理时间与水温无关。讨论了通过这种短期功能反应实验对猎物和捕食者混合年龄种群捕食的建模。
