Analyze Publications Database

Adaptive bill morphology for enhanced tool manipulation in New Caledonian crows

Hiroshi Matsui1, Gavin R. Hunt2, Katja Oberhofer3, Naomichi Ogihara4, Kevin J. McGowan5, Kumar Mithraratne3, Takeshi Yamasaki6, Russell D. Gray2,7 & Ei-Ichi Izawa1. Adaptive bill morphology for enhanced tool manipulation in New Caledonian crows. Scientific Reports. March 9th, 2016.

Publication Date
March 2016

How Analyze was Used
“We used a 3D landmark analysis to compare the overall bill shapes of the 11 species. Cross-sectional images of the head of each specimen were obtained with a micro-CT scanner (LaTheta LCT-100, Hitachi Aloka Medical, Tokyo, Japan). We next created a 3D reconstruction of each skull as a triangular mesh model based on the marching cube method, with an in-plane resolution of 0.2 mm/pixel and a gap size of 0.2 mm between images (image processing software Analyze 9.0, AnalyzeDirect, Overland Park, KS, USA).”

Keywords
Biomechanics
Evolutionary ecology

Author Affiliation(s)
1Department of Psychology, Keio University, Tokyo, Japan.
2School of Psychology, University of Auckland, Auckland, New Zealand.
3Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand.
4Department of Mechanical Engineering, Keio University, Yokohama, Japan.
5Cornell Lab of Ornithology, Ithaca, New York, USA.
6Yamashina Institute for Ornithology, Abiko, Japan.
7Max Planck Institute for the Science of Human History, Jena, Germany.

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