摘要
拟小食螨瓢虫成虫能捕食柑桔全爪螨的各虫态。在一定的猎物密度范围内,随着猎物密度的增大其捕食量逐渐增加,两者之间有密切的相关性。其个体对柑桔全爪螨幼螨、若螨、成螨和卵的日捕食量上限分别为103,79,47头和175粒;当猎物密度不变时,随其密度的增大,个体捕食量减小;当不同虫态的柑桔全爪螨同时存在时,其较喜食幼螨。
This paper deals with the functional response of Stethorus parapauperculus Pangto Panonychus citri(McGregor),mutual interference between predator individualsand choosing effect to prey of S.parapauperculus.With the growth of prey densitywithin a certain range,the number of preys killed by predators increased gradually.However,when the prey density was constant,the number of preys killed by preda-tors declined with the higher density of the predators.When the predators were feededwith the four stages of Panonychus citri at the same time,S.parapauperculus preferedlarvae to other stages.
出处
《热带作物学报》
CSCD
1990年第2期113-118,共6页
Chinese Journal of Tropical Crops
关键词
柑桔全爪螨
拟小食螨瓢虫
捕食
Stethorus parapauperculus Pang
Panonychus citri(McGregor)
functional response
mutual interference
selectivity
