A
Akinori Takahashi
Researcher at National Institute of Polar Research
Publications - 153
Citations - 5692
Akinori Takahashi is an academic researcher from National Institute of Polar Research. The author has contributed to research in topics: Foraging & Seabird. The author has an hindex of 39, co-authored 144 publications receiving 4790 citations. Previous affiliations of Akinori Takahashi include Graduate University for Advanced Studies & Kyoto University.
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Journal ArticleDOI
Key Questions in Marine Megafauna Movement Ecology
Graeme C. Hays,Luciana C. Ferreira,Luciana C. Ferreira,Ana M. M. Sequeira,Mark G. Meekan,Carlos M. Duarte,Helen Bailey,Fred Bailleul,W. Don Bowen,M. Julian Caley,M. Julian Caley,Daniel P. Costa,Víctor M. Eguíluz,Sabrina Fossette,Ari S. Friedlaender,Nick Gales,Adrian C. Gleiss,John Gunn,Robert Harcourt,Elliott L. Hazen,Michael R. Heithaus,Michelle R. Heupel,Michelle R. Heupel,Kim N. Holland,Markus Horning,Ian D. Jonsen,Gerald L. Kooyman,Christopher G. Lowe,Peter T. Madsen,Peter T. Madsen,Helene Marsh,Richard A. Phillips,David Righton,Yan Ropert-Coudert,Katsufumi Sato,Scott A. Shaffer,Colin A. Simpfendorfer,David W. Sims,David W. Sims,David W. Sims,Gregory B. Skomal,Akinori Takahashi,Philip N. Trathan,Martin Wikelski,Martin Wikelski,Jamie N. Womble,Michele Thums +46 more
TL;DR: This exercise assembled 40 experts to identify key questions in this field, focussing on marine megafauna, which include a broad range of birds, mammals, reptiles, and fish, and shows that the questions have broad applicability to other taxa, including terrestrial animals, flying insects, and swimming invertebrates.
Journal ArticleDOI
Can Ethograms Be Automatically Generated Using Body Acceleration Data from Free-Ranging Birds?
Kentaro Q. Sakamoto,Katsufumi Sato,Mayumi Ishizuka,Yutaka Watanuki,Akinori Takahashi,Francis Daunt,Sarah Wanless +6 more
TL;DR: This work demonstrates an automated procedure to categorize behavior from body acceleration, together with the release of a user-friendly computer application, “Ethographer”, which has the potential to detect previously unknown types of behavior and unknown sequences of some behaviors.
Journal ArticleDOI
Translating Marine Animal Tracking Data into Conservation Policy and Management
Graeme C. Hays,Helen Bailey,Steven J. Bograd,W. Don Bowen,Claudio Campagna,Ruth H. Carmichael,Paolo Casale,André Chiaradia,Daniel P. Costa,Eduardo Cuevas,P J Nico de Bruyn,Maria P. Dias,Maria P. Dias,Carlos M. Duarte,Daniel C. Dunn,Peter H. Dutton,Nicole Esteban,Ari S. Friedlaender,Kimberly T. Goetz,Brendan J. Godley,Patrick N. Halpin,Mark Hamann,Neil Hammerschlag,Robert Harcourt,Autumn-Lynn Harrison,Elliott L. Hazen,Michelle R. Heupel,Erich Hoyt,Nicolas E. Humphries,Connie Y. Kot,James S. E. Lea,Helene Marsh,Sara M. Maxwell,Clive R. McMahon,Clive R. McMahon,Giuseppe Notarbartolo di Sciara,Giuseppe Notarbartolo di Sciara,Daniel M. Palacios,Richard A. Phillips,David Righton,David Righton,Gail Schofield,Jeffrey A. Seminoff,Colin A. Simpfendorfer,David W. Sims,David W. Sims,David W. Sims,Akinori Takahashi,Michael J. Tetley,Michele Thums,Philip N. Trathan,Stella Villegas-Amtmann,Randall S. Wells,Scott D. Whiting,Natalie Wildermann,Ana M. M. Sequeira +55 more
TL;DR: A broad range of case studies from diverse marine taxa are compiled to show how tracking data have helped inform conservation policy and management, including reductions in fisheries bycatch and vessel strikes, and the design and administration of marine protected areas and important habitats.
Journal ArticleDOI
A new technique for monitoring the behaviour of free-ranging Adélie penguins.
Ken Yoda,Yasuhiko Naito,Katsufumi Sato,Akinori Takahashi,Jun Nishikawa,Yan Ropert-Coudert,M. Kurita,Y. Le Maho +7 more
TL;DR: Using this new approach, further studies combining the monitoring of marine resources in different Antarctic sites and the measurement of the energy expenditure of foraging penguins, e.g. using heart rates, will constitute a powerful tool for investigating the effects of environmental conditions on their foraging strategy.
Journal ArticleDOI
Stroke frequency, but not swimming speed, is related to body size in free-ranging seabirds, pinnipeds and cetaceans
Katsufumi Sato,Yutaka Watanuki,Akinori Takahashi,Patrick J. O. Miller,Patrick J. O. Miller,Hideji Tanaka,Ryo Kawabe,Paul J. Ponganis,Yves Handrich,Tomonari Akamatsu,Yuuki Y. Watanabe,Yoko Mitani,Daniel P. Costa,Charles-André Bost,Kagari Aoki,Masao Amano,Phil Trathan,Ari D. Shapiro,Yasuhiko Naito +18 more
TL;DR: It is suggested that muscle characteristics may constrain swimming during cruising travel, with convergence among diving specialists in the proportions and contraction rates of propulsive muscles.