volutionarily Ecological Base of Decision-making: Ecological Genetic Mechanism of the memory of lose
| Project/Area Number |
23570027
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Ecology/Environment
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| Research Institution | Okayama University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
OKADA Kensuke 岡山大学, 大学院環境生命科学研究科, 助教 (40550299)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 行動生態 / 意思決定 / 遺伝基盤 / 闘争 / 経験による修飾 / 動物行動 / 武器形質 / 適応度 / 昆虫 / 記憶 / 生体アミン / 表現型可塑性 / decision making |
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| Research Abstract |
The relationship between lose-win of male combat and memory was examined in the broad horned beetle, Gnatocerus cornutus. Experience-dependent tactics of males trying to gain access to females were examined. Losing decreased a male's rate of fighting for four days, and few defeated males fought any males. The experience of losing not only decreased a male's aggressiveness but also switched the male behavior from fighting to dispersal from the fighting arena. The volume of ejaculation by loser males increased when they met a female and copulated with her. In Riptortus pedestris, male combat behavioral patterns changed during a day.
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Report
(4 results)
Research Products
(49 results)
