Development on ausitory recognition of non-social lizards through heterospecific eavesdropping

• Project/Area Number: 25870369
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Cognitive science; Ecology/Environment
• Research Institution: Kyoto University
• Principal Investigator: Ryo Ito 京都大学, 霊長類研究所, 研究員 (70583467)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 鳴かない動物 / 盗聴 / 音声学習 / 発達的変化 / 盗聴行動 / 学習 / 嫌悪刺激 / 爬虫類の音声認知 / 音声認知の発達的変化 / 国際研究者交流 / マダガスカル

Outline of Final Research Achievements

I have studied the developmental change of heterospecific eavesdropping ability of Oplurus cuvieri to compare the ability of auditory learning between vocal animals and non-vocal animals. I found the clear evidence on the developmental change of responses in the eavesdropping of O. cuvieri. This result suggests that developmental change on the ability of auditory learning may make this developmental change in the eavesdropping. Then I surveyed the auditory learning ability of the lizard. However, I could not show any clear evidence on associate learning between auditory stimuli and aversion.

Research Products

• [Journal Article] Oplurus cuvieri cuvieri (Madagascan Spiny-tailed Iguana). Prey (2015)
  • Author(s): Makoto M. Itoh, Ryo Ito
  • Journal Title: Herpetological Review Volume: 46 Pages: 632-633
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Non-flying mammalian fauna of Ampijoroa, Ankarafantsika National Park. (2013)
  • Author(s): Ito, Ryo, Felix Rakotondraparany, and Hiroki Sato
  • Journal Title: Madagascar Conservation & Development Volume: 8 Issue: 1 Pages: 45-48
  • DOI: 10.4314/mcd.v8i1.7
  • Peer Reviewed
• [Journal Article] Oplurus cuvieri cuvieri (Madagascan Spiny-tailed Iguana). Prey. (2013)
  • Author(s): ITO R.
  • Journal Title: Herpetological Review Volume: 44 Pages: 678-678
  • Peer Reviewed
• [Presentation] Non-vocal lizards eavesdrop on avian alarm calls (2015)
  • Author(s): Ryo Ito, Akira Mori
  • Organizer: Behaviour 2015
  • Place of Presentation: Cairns, Australia
  • Year and Date: 2015-08-09
  • Int'l Joint Research
• [Presentation] コモンテンレックにおける足音による群れの動きの制御 (2015)
  • Author(s): 伊藤 亮
  • Organizer: 日本生態学会第６２回全国大会
  • Place of Presentation: 鹿児島
  • Year and Date: 2015-03-19
• [Presentation] コモンテンレックにおける他個体の足音を利用した群れの動態と個体の同調性 (2014)
  • Author(s): 伊藤 亮
  • Organizer: 日本哺乳類学会
  • Place of Presentation: 京都
  • Year and Date: 2014-09-05
• [Presentation] Non-vocal lizards in Madagascar eavesdrop on avian alarm calls (2014)
  • Author(s): Ryo ITO & Akira MORI
  • Organizer: Joint Meeting of Ichthyologists and Herpetologists
  • Place of Presentation: Chattanooga, U.S.A.
  • Year and Date: 2014-08-03
• [Presentation] 鳥類が発する未経験の警戒声に対するトカゲ類の反応
  • Author(s): 伊藤亮、森哲
  • Organizer: 日本動物学会第８４回大会
  • Place of Presentation: 岡山