Abstract
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.
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Acknowledgements
We thank Drs. M. Osakabe and K. Fujisaki of Kyoto University for their comments and encouragement, and two anonymous reviewers for their valuable suggestions.
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Oku, K., Yano, S. & Takafuji, A. Nonlethal indirect effects of a native predatory mite, Amblyseius womersleyi Schicha (Acari:Phytoseiidae), on the phytophagous mite Tetranychus kanzawai Kishida (Acari: Tetranychidae). J Ethol 22, 109–112 (2004). https://doi.org/10.1007/s10164-003-0102-2
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DOI: https://doi.org/10.1007/s10164-003-0102-2