摘要:
报道了马六甲肉食螨生活史,并首次用功能反应、数值反应对马六甲肉食螨同仓贮重要害螨-害嗜鳞螨之间相互关系进行探讨。研究表明:该螨一生经历卵,幼螨,第Ⅰ若螨,第Ⅲ若螨,成螨5个时期。在18-26℃,卵→卵需26～29d,整个生活周期50-48d,日取食害嗜鳞螨量10-12头。12℃贮存22d存活率25%.在固定猎物密度下马六甲肉食螨的捕食功能有随自身密度上升呈下降移势,其模型A=16.5462P-0.5725(r=-0.96).猎物密度与捕食者产卵关系模型:Y=6.65+5.64X(r=0.96);与捕食者产卵历期关系模型:Y=5.79+1.03X(r=0.96).马六甲肉食螨与害嗜鳞螨系统数量关系模型:dN/dt=N(0.76+0. 62P)与dP/dt=P(-0.50-0.11N)。
Abstract:
The life history of Cheyletus Malaccensis oudms was reported in this paper.It consists of egg stage, larve stage, Protonymphal stage, deutonymphal stage and adult.The mites were reared in separately small special cell at 18-26℃.The whole life history requires 48-50 d.Each mite eats about 10-12 preys/d and five hundreds preys in its whole life history.Unchanged the numbers of preys, the preing capacity decreased with C.malaccensis oudms density increased.The model was A =16.5462P-0.5725 (r=0.96).The model of oviferous number of predator to prey density was Y=6.65 +5.64X (r = 0.96).The model of the relationship of systematic number between C.malaccensis and L.destructor was:dN/dt=N(0.76+0. 62P) and dP/dt=P(-0.50-0.11N).
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