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タイトル: | Sexual selection of male parental care in giant water bugs |
著者: | Ohba, Shin-ya Okuda, Noboru Kudo, Shin-ichi |
著者名の別形: | 大庭, 伸也 奥田, 昇 |
キーワード: | Belostomatidae egg-bearing mate choice paternal care sexual selection |
発行日: | May-2016 |
出版者: | The Royal Society |
誌名: | Royal Society Open Science |
巻: | 3 |
号: | 5 |
論文番号: | 150720 |
抄録: | Paternal care can be maintained under sexual selection, if it helps in attracting more mates. We tested the hypothesis in two giant water bug species, Appasus major and Appasus japonicus, that male parental care is sexually selected through female preference for caring males. Females were given an opportunity to choose between two males. In the first test of female mate choice, one male carried eggs on its back, while the other did not. The egg status was switched between these two males in the second test. The experiment revealed that females of both species preferred caring males (i.e. egg-bearing) to non-caring males. Nonetheless, the female mate preference for egg-bearing males was stronger in A. major than in A. japonicus. Our results suggest that sexual selection plays an important role in maintaining elaborate paternal care in giant water bugs, but the importance of egg-bearing by males in female mate choice varies among species. |
著作権等: | © 2016 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
URI: | http://hdl.handle.net/2433/227517 |
DOI(出版社版): | 10.1098/rsos.150720 |
PubMed ID: | 27293778 |
出現コレクション: | 学術雑誌掲載論文等 |
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