このエントリーをはてなブックマークに追加
ID 57915
著者
Matsumura, Kentarou Graduate School of Environmental and life Science, Okayama University
Miyatake, Takahisa Graduate School of Environmental and life Science, Okayama University ORCID Kaken ID researchmap
抄録
Tonic immobility is an adaptive anti-predator behaviour observed in many species. This anti-predator behaviour is often correlated with a species' movement motivation, so a relationship between the duration of tonic immobility and morphological traits supporting movement would be expected. Using the red flour beetle, Tribolium castaneum, we carried out two-way artificial selection for the duration of tonic immobility over more than 43 generations, establishing populations with longer (L) and shorter (S) tonic immobility durations compared to those of a non-selected control (C) population. Here, we investigated differences in walking motivation and leg length between the selected populations. Walking motivation was significantly higher in beetles from the S population than that in those from the L population. Moreover, S-population beetles of both sexes had significantly longer legs than those from L and C populations. The present results suggest the evolution of longer legs in response to selection pressure for a shorter duration of tonic immobility in T. castaneum.
キーワード
anti-predator strategy
tonic immobility
artificial selection
leg
Tribolium castaneum
備考
This fulltext will be available in Oct 2020
発行日
2019-10
出版物タイトル
Behaviour
157巻
1号
出版者
Brill Academic Publishers
開始ページ
17
終了ページ
31
ISSN
0005-7959
NCID
AA00558701
資料タイプ
学術雑誌論文
言語
English
OAI-PMH Set
岡山大学
論文のバージョン
author
DOI
Web of Science KeyUT
関連URL
isVersionOf https://doi.org/10.1163/1568539X-00003579