稻田蜘蛛捕食作用及其数学模拟模型研究

STUDIES ON PREDATION OF THE PADDY FIELD SPIDERS AND THEIR MATHEMATICAL SIMULATION MODEL

在室内和田间自然条件下研究了稻田蜘蛛对稻纵卷叶螟和飞虱的捕食作用。模拟了几种蜘蛛和不同猎物间功能反应和干扰反应模型。单种蜘蛛对单种猎物的功能反应符合HollingⅡ型,而两种蜘蛛共同作用于一种猎物的功能反应符合HollingⅢ型(S型)。猎物不同、捕食者不同或容器不同,捕食功能反应亦不相同。本文尝试了田间自然条件下蜘蛛捕食功能反应和干扰反应模型的模拟方法,并与室内模拟结果进行比较。

Researches were carried out on the predation of the spiders in paddy field on rice leaf roller and planthopper in laboratory and field conditions. Models that were functional response and interference response of the spiders to the different preys were simulated. The functional response of one spider species to one prey could be described by Holling's equation Ⅱ, while that of two spider species to one prey could be simulated by S-shaped curve. The functional response paramters were not alike because of the different preys and spiders, or under different space environment. The authors attempted the method that was utilized to simulate functional response and interference response of the spiders to the prey in the field natural conditions, and their results were compared with that in the labortory.