Ecological and Physiological Basis underlying Acquisition of Behavioral Laterlity
Project/Area Number |
24405001
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 海外学術 |
Research Field |
Neuroscience in general
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Research Institution | Nagoya University |
Principal Investigator |
ODA Yoichi 名古屋大学, 理学(系)研究科(研究院), 教授 (00144444)
|
Co-Investigator(Kenkyū-buntansha) |
HORI Michio 京都大学, 大学院理学研究科, 名誉教授 (40112552)
TAKEUCHI Yuichi 富山大学, 大学院医学薬学研究部(医学), 助教 (40508884)
|
Project Period (FY) |
2012-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2014: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
|
Keywords | タンガニイカ湖 / 鱗食シクリッド / 左右性 / 口部形態 / 発達 / 利き / 種内二型 / マウスナー細胞 / 鱗食魚 / Perissodus microlepis / 交差捕食の卓越 / 頻度依存淘汰 / 摂食行動 / 学習 |
Outline of Final Research Achievements |
The skewed-mouthed scale-eating cichlid Perissodus microlepis in Lake Tanganyika is an attractive model of behavioural laterality: each adult robs scales from its prey fishes’ left or right flanks according to the direction in which its mouth is skewed. To investigate the development of behavioural laterality and mouth asymmetry, we analysed stomach contents and lower jaw-bone asymmetry of various-sized P. microlepis sampled in the southern tip of the Lake. The shapes of the pored scales found in each specimen’s stomach indicated its attack side preference. Early-juveniles (SL <45mm) feeding on zooplankton exhibited slight mouth asymmetry. After scale-eating began, the attack side preference was gradually strengthened, as did mouth asymmetry. Our findings show that mouth asymmetry in P. microlepis precedes behavioural laterality, which is established in association with mouth development, and suggest that physical and behavioural lateralities confer a synergistic advantage.
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Report
(4 results)
Research Products
(61 results)
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[Book] リッピンコットシリーズ イラストレイテッド 神経科学2014
Author(s)
名今村一之, 小田洋一, 黒見坦, 齋藤繁, 齋藤康彦, 白尾智明, 関野祐子, 高田昌彦, 田中聡一, 永雄総一, 西条寿夫, 丸山敬
Total Pages
480
Publisher
丸善出版
Related Report
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