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Position: Home > Articles > Functional response and searching rate of Orius sauteri adults on Frankliniella occidentalis nymphs Chinese Journal of Ecology 2007 (8) 1233-1237

东亚小花蝽成虫对西花蓟马若虫的捕食功能反应与搜寻效应

作  者:
张安盛;于毅;李丽莉;张思聪;门兴元
单  位:
山东省农业科学院植物保护研究所
关键词:
东亚小花蝽;西花蓟马;捕食功能反应;搜寻效应
摘  要:
为探明东亚小花蝽对西花蓟马的控制效能,开展了东亚小花蝽成虫对西花蓟马若虫的捕食功能反应与搜寻效应研究。结果表明,在供试温度下,该捕食功能反应符合HollingⅡ型方程。在相同温度下,东亚小花蝽成虫的捕食量随着猎物密度的增加而增大,搜寻效应随着猎物密度的增加而降低。在18℃~26℃内,随着温度的升高,东亚小花蝽成虫对西花蓟马若虫的捕食量增加,而在26℃~34℃则有相反的趋势。在相同猎物密度条件下,随着东亚小花蝽成虫密度的增大,其平均捕食量逐渐减少,捕食作用率也相应地降低,东亚小花蝽成虫之间存在分摊竞争。
译  名:
Functional response and searching rate of Orius sauteri adults on Frankliniella occidentalis nymphs
作  者:
ZHANG An-sheng, YU Yi, LI Li-li, ZHANG Si-cong, MEN Xing-yuan (Institute of Plant Protection, Shangdong Academy of Agricultural Sciences, Ji’nan 250100, China).
关键词:
Orius sauteri; Frankliniella occidentalis; functional response; searching rate.
摘  要:
To approach the controlling effect of Orius sauteri on Frankliniella occidentalis, this paper studied the functional response and searching rate of O. sauteri adults on F. occidentalis nymphs. The results showed that within the range of test temperature, the functional response of O. sauteri adults could be described with Holling Ⅱ equation. At the same temperature, the predation capacity of O. sauteri adults on F. occidentalis nymphs increased with the increasing density of the prey, while searching rate changed in adverse. O. sauteri adults had an increased predation capacity with the increase of temperature at 18 ℃ - 26 ℃, but a decreased one at 26 ℃ - 34 ℃. At the same prey density, the average predation capacity and predation ratio of O. sauteri adults decreased with the increasing density of the predator. There was a scrambling competition among O. sauteri adults.

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