Evolutionary and ontogenetic mechanisms of eavesdropping by lizards in the terrestrial vertebrate community in Madagascar

2014 Fiscal Year Final Research Report

• Project/Area Number: 24405008
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 海外学術
• Research Field: Ecology/Environment
• Research Institution: Kyoto University
• Principal Investigator: MORI Akira 京都大学, 理学(系)研究科(研究院), 准教授 (80271005)
• Co-Investigator(Kenkyū-buntansha): NAKAMURA Masahiko 上越教育大学, 学校教育研究科, 教授 (90272880) ; HORI Michio 京都大学, 大学院理学研究科, 名誉教授 (40112552) ; HASEGAWA Masami 東邦大学, 理学部, 教授 (40250162)
• Research Collaborator: ITO Ryo 京都大学, 霊長類研究所, ポスドク研究員 ; SATO Hiroki 京都大学, 霊長類研究所, ポスドク研究員 ; KOJIMA Yosuke 京都大学, 大学院理学研究科, 日本学術振興会特別研究員PD ; KAWAI Ushio Texas Tech University ; JONO Teppei 成都生物研究所, ポスドク研究員 ; RAKOTONDRAPARANY Felix アンタナナリブ大学, 理学部, 教授 ; RAKOTOMANANA Hajanirina アンタナナリブ大学, 理学部, 教授
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 生態学 / 行動学 / 進化 / 爬虫類 / 鳥類 / マダガスカル / 盗聴

Outline of Final Research Achievements

Many animals communicate each other using an auditory sense. Usually, an individual sends acoustic signals that contain some information to an intended receiver. However, during this process, another individual may be able to receive the signals and use them for its own sake. We investigated this eavesdropping behavior in lizards inhabiting a tropical dry forest in Madagascar. We examined the ontogenetic development of eavesdropping and possible environmental factors that affect the acquirement of this behavior. Our results will contribute to the understanding of evolutionary and ontogenetic mechanisms of eavesdropping behavior in animals.

Free Research Field

進化生態学