|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Agriculture / Faculty of Agriculture >
Peer-reviewed Journal Articles, etc >
Nest size variation reflecting anti-predator strategies in social spider mites of Stigmaeopsis (Acari: Tetranychidae)
| Title: | Nest size variation reflecting anti-predator strategies in social spider mites of Stigmaeopsis (Acari: Tetranychidae) |
| Authors: | Mori, Kotaro Browse this author | | Saito, Yutaka2 Browse this author →KAKEN DB |
| Authors(alt): | 斉藤, 裕2 |
| Keywords: | Spider mites | | Silken web nest | | Protective refuge | | Predator-prey interaction | | Stigmaeopsis |
| Issue Date: | 20-Mar-2004 |
| Publisher: | Springer-Verlag GmbH |
| Journal Title: | Behavioral Ecology and Sociobiology |
| Volume: | 51 |
| Issue: | 3 |
| Start Page: | 201 |
| End Page: | 206 |
| Publisher DOI: | 10.1007/s00265-004-0776-7 |
| Abstract: | The social spider mites (Acari: Tetranychidae) of Stigmaeopsis weave dense nests on the underside of host leaves. Four species occur on the leaves of bamboo in Japan: Stigmaeopsis longus, S. celarius, S. takahashii and S. saharai. We initially reconfirmed the occurrence of distinct variation in nest size among the species. Based on the hypothesis that this variation plays a role in protecting the spider mites from predators, we looked at the behavior of the natural enemies that occur on the host plants along with members of Stigmaeopsis. We found considerable variation in the ability of nests to protect the spider mite eggs. The smallest nests protected the eggs against 3 predators, whereas the largest nests protected the eggs only against one predator species. In other words, decreases in nest size increased egg defense. Thus we concluded that nest size variation reflects a strategy for reducing predation. |
| Rights: | The original publication is available at www.springerlink.com |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/924 |
| Appears in Collections: | 農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 齋藤 裕
|
