Mechanism and adaptive significance in evolution of body shape

• Project/Area Number: 25840157
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Ecology/Environment
• Research Institution: Okayama University
• Principal Investigator: OKADA KENSUKE 岡山大学, その他の研究科, 助教 (40550299)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 生態学 / 生態 / 昆虫

Outline of Final Research Achievements

This study focused on body shape in animal. We conducted on the following investigations with the male beetle. We first examined how body shape change affects individual fitness with ecological approach. In addition, we second examined how body shape change is regulated with molecular approach. Using a part of these results, we published several peer reviewed papers with scientific journals.

Research Products

• [Journal Article] Polyandry and fitness in emale horned flour beetles (Gnatocerus cornutus) (2015)
  • Author(s): Kensuke Okada, C. Ruth Archer, Masako Katsuki, Yu Suzaki, Manmohan D. Sharma, Clarissa M. House, David J. Hosken
  • Journal Title: Animal Behaviour Volume: 106 Pages: 11-16
  • DOI: 10.1016/j.anbehav.2015.05.008
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Sexual conflict over mating in Gnatocerus cornutus? Females prefer lovers not fighters. (2014)
  • Author(s): Okada K, Katsuki M, Shrma MD, House CM, Hosken DJ
  • Journal Title: Proceedings of the Royal Society B Volume: 281 Issue: 1785 Pages: 200140285-200140285
  • DOI: 10.1098/rspb.2014.0281
  • Peer Reviewed
• [Journal Article] Pre-copulatory sexual selection in the cigarette beetle Lasioderma serricorne (2013)
  • Author(s): Okada K, Katsuki M, Omae Y, Fuchikawa T
  • Journal Title: Behavioral Ecology and Sociobiology Volume: 67 Pages: 53-59
  • Peer Reviewed
• [Journal Article] Inter- and intrasexual genetic correlations of exaggerated traits and locomotor activity (2013)
  • Author(s): Fuchikawa T, Okada K
  • Journal Title: Journal of Evolutionary Biology Volume: 26 Pages: 1979-1987
  • Peer Reviewed
• [Presentation] タバコシバンムシにおける交尾前と交尾後性選択の関係 (2016)
  • Author(s): 香月雅子、藤原晴日、小寺聡子、洲崎雄、佐々木力也、岡田賢祐
  • Organizer: 第60回日本応用動物昆虫学会大会
  • Place of Presentation: 堺市
  • Year and Date: 2016-03-25
• [Presentation] オオツノコクヌストモドキのメスにおける配偶者選択の利益と交尾のコスト (2016)
  • Author(s): 清瀬勝也、香月雅子、洲崎雄、岡田賢祐
  • Organizer: 日本生態学会第62回大会
  • Place of Presentation: 仙台市
  • Year and Date: 2016-03-20
• [Presentation] オツノコクヌストモドキにおける求愛行動における闘争経験の効果 (2015)
  • Author(s): 香月雅子・岡田賢祐
  • Organizer: 第59回日本応用動物昆虫学会大会
  • Place of Presentation: 山形市
  • Year and Date: 2015-03-27
• [Presentation] オオツノコクヌストモドキにおける雄の交尾戦術と生体アミン (2015)
  • Author(s): 清瀬勝也・洲崎雄・香月雅子・岡田泰和・岡田賢祐.
  • Organizer: 第59回日本応用動物昆虫学会大会
  • Place of Presentation: 山形市
  • Year and Date: 2015-03-27
• [Presentation] Allometry and sexual dimorphism in legs of Sagra femorata (2015)
  • Author(s): Masako Katsuki・Yasukazu Okada・Tomoyuki Yokoi・Kensuke Okada
  • Organizer: 第61回日本生態学会大会
  • Place of Presentation: 鹿児島市
  • Year and Date: 2015-03-21
• [Presentation] オオツノコクヌストモドキにおけるメスの配偶者選択 (2014)
  • Author(s): 岡田賢祐・香月雅子
  • Organizer: 第61回日本生態学会大会
  • Place of Presentation: 広島