Comparison of thread-cutting behavior in three specialist predatory mites to cope with complex webs of <Emphasis Type="Italic">Tetranychus</Emphasis> spider mites |
| |
Authors: | Takeshi Shimoda Hidenari Kishimoto Junji Takabayashi Hiroshi Amano Marcel Dicke |
| |
Institution: | (1) National Agricultural Research Center, Tsukuba Ibaraki, 305-8666, Japan;(2) National Institute of Fruit Tree Science, Tsukuba Ibaraki, 305-8605, Japan;(3) Center for Ecological Research, Kyoto University, Otsu Shiga, 520-2113, Japan;(4) Graduate School of Horticulture, Chiba University, Matsudo Chiba, 271-8510, Japan;(5) Laboratory of Entomology, Wageningen University, 6700EH Wageningen, The Netherlands |
| |
Abstract: | Anti-predator defenses provided by complex webs of Tetranychus mites can severely impede the performance of generalist predatory mites, whereas this may not be true for specialist predatory
mites. Although some specialist predatory mites have developed morphological protection to reduce the adverse effects of complex
webs, little is known about their behavioral abilities to cope with the webs. In this study, we compared thread-cutting behavior
of three specialist predatory mites, Phytoseiulus persimilis, Neoseiulus
womersleyi and N. californicus, exhibited inside the complex web of T. urticae. No major difference was observed among them in the basic pattern of this behavior, using chelicerae and palps, and in the
number of silken threads severed while moving inside the web. These results and observations suggest that each predator species
cut many sticky silken threads to move inside the complex web without suffering from serious obstruction.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. |
| |
Keywords: | Spider mite Complex web Defense Predatory mite Specialist Counteradaptation |
本文献已被 PubMed SpringerLink 等数据库收录! |
|