摘要
1998～ 1 999年试验结果表明 ,龟纹瓢虫 (PropylaeajaponicaThunberg)对麦长管蚜 (MacrosiphumgranariumKriby)的功能反应符合HollingⅡ型模型 ,为Na =0 .63 782N/ 1 +0 .0 1 1 3 8N。捕食麦长管蚜的数量随其密度增加而增加 ,但寻找效应随麦长管蚜密度增加而降低。日最大捕食量为 52 .2头。龟纹瓢虫寻找效应随自身密度增加而降低 ,其数学模型为E =0 .2 56×P- 1.6 0 70 。干扰反应数学模型为E =0 .7564×P- 2 .2 72 7。
During the years of 1998 and 1999 of experiment results showed that the functional response models that Propylaea japonica preyed on Macrosiphum granarium were: Na=0.637852/(1+0.01138N). Relationship bitween amount of aphid preyed by ladybirds and density showed a negative accelerative curve. The daily maximum number of aphid preyed theoretically by ladybirds were 52.2. The searching efficiency decreased with increase of predator density, and the mathematical models were: E=0.25600×P -1.6070 . The nutural interference among individual predators and preys could described by Hassell(1969) equation: E=0.7564×P -2.2727 .
出处
《莱阳农学院学报》
2000年第2期103-106,共4页
Journal of Laiyang Agricultural College
关键词
龟纹瓢虫
麦长管蚜
功能反应
寻找效应
捕食功能
Propylaea japonica
Macrosiphum granarium
functional response
searching efficiency
