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タイトル: | Predator experience changes spider mites’ habitat choice even without current threat |
著者: | Murase, Aoi Fujita, Kazuo |
著者名の別形: | 村瀬, 葵 藤田, 和生 |
キーワード: | Animal behaviour Behavioural ecology |
発行日: | 30-May-2018 |
出版者: | Springer Nature |
誌名: | Scientific Reports |
巻: | 8 |
論文番号: | 8388 |
抄録: | As recent studies have revealed, previous exposure to a predator can change prey behavior even in the absence of current threat. We hypothesized that experiencing a predator increases prey avoidance of lower-quality resources even in the absence of a predator, which in turn influences the prey’s spatial distribution. We examined these hypotheses using the herbivorous spider mite Tetranychus kanzawai and the specialist predatory mite Neoseiulus womersleyi. We used Phaseolus vulgaris as a high-quality host plant and Hydrangea macrophylla as a low-quality host plant. First we examined whether T. kanzawai females that were previously exposed to predators preferred P. vulgaris to H. macrophylla under no current threat more than those without predator experience. Second, we tested the effect of predator experience on dispersal by T. kanzawai females on P. vulgaris or on H. macrophylla. Our results show that: (1) predator-experienced T. kanzawai females expressed stronger avoidance of the low-quality plant H. macrophylla than those without predator experiences; and (2) T. kanzawai females transferred to H. macrophylla traveled farther than those on P. vulgaris, especially females with previous predator experience. These findings reveal neglected aspects of the evolutionary interaction between predators and the habitat choices of their prey. |
記述: | 捕食者との遭遇経験が、捕食者がいないところでの ハダニの寄主植物選択を変えることを発見しました. 京都大学プレスリリース. 2018-07-04. |
著作権等: | © The Author(s) 2018. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
URI: | http://hdl.handle.net/2433/232591 |
DOI(出版社版): | 10.1038/s41598-018-26757-y |
PubMed ID: | 29849059 |
関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2018-07-04-2 |
出現コレクション: | 学術雑誌掲載論文等 |
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