INFLUENCE OF PREY DENSITY RELATIVE HUMIDITY AND STARVATION ON PREDACIOUS BEHAVIOR OF PHYTOSEIULUS PERSIMILIS ATHIAS-HENRIOT (ACARINA - PHYTOSEIIDAE)
INFLUENCE OF PREY DENSITY RELATIVE HUMIDITY AND STARVATION ON PREDACIOUS BEHAVIOR OF PHYTOSEIULUS PERSIMILIS ATHIAS-HENRIOT (ACARINA - PHYTOSEIIDAE)
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DOI：
10.1139/z66-047
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发表时间：
1966-01-01
期刊：
影响因子：
--
通讯作者：
CHANT, DA
中科院分区：
文献类型：
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作者：
MORI, H;CHANT, DA
捕食螨Phytoseiulus persimilis Athias Henriot的功能反应进行了测试，在不同密度的二斑叶螨（科赫），猎物物种，并在几个水平的湿度和饥饿。每捕食者的成年猎物的消费上升，在第一增加猎物密度，但在高密度显着下降。这种现象是由于在高猎物密度的其他猎物的干扰造成的放弃捕获的增加。捕食者的卵消耗量随着猎物密度的增加而增加。猎物的消费量在低比在高湿度。在捕食者饥饿水平较高时，重复摄食率显著增加，但3种饥饿水平之间的猎物消耗差异不显著。
The functional response of the predacious mite Phytoseiulus persimilis Athias-Henriot was tested at various densities of Tetranychus urticae (Koch), a prey species, and at several levels of humidity and hunger. The consumption of adult prey per predator rose at first with increasing prey density, but significantly decreased at high densities. This phenomenon was caused by an increase in abandonment of captures resulting from disturbance by other prey at high prey densities. Egg consumption by the predator increased with prey density. Prey consumption was greater at low than at high humidities. A significant increase in the rate of repeat feeding was found at higher levels of predator hunger, but the differences in consumption of prey between the 3 levels of hunger were not significant.