Nonlethal indirect effects of a native predatory mite, Amblyseius womersleyi Schicha (Acari:Phytoseiidae), on the phytophagous mite Tetranychus kanzawai Kishida (Acari: Tetranychidae)
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- 作者：Keiko Oku ; Shuichi Yano and Akio Takafuji
- 关键词：Nonlethal indirect effects ; Direct effects ; Fitness ; Tetranychus kanzawai ; Amblyseius womersleyi
- 刊名：Journal of Ethology
- 出版时间：January 2004
- 出版年：2004
- 期刊代码：130_0289-0771
- 类别：bio
- 卷：22
- 期：1
- 页码：109-112
- 数据来源：sp
摘要
We experimentally tested the indirect and direct effects of Amblyseius womersleyi on Tetranychus kanzawai. The presence of A. womersleyi indirectly reduced egg production of T. kanzawai by 25.9%, although this effect had less impact than direct egg predation. The mechanism of this indirect effect could be explained by behavioral changes in T. kanzawai females; in the presence of A. womersleyi, T. kanzawai females allocated more time to seeking refuge on webs at the expense of feeding on leaves.