James Redcliffe
Swansea University
11 Papers
6 Citations
James Redcliffe is an academic researcher from Swansea University. The author has contributed to research in topics: Acceleration & Biology. The author has an hindex of 3, co-authored 7 publications.
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Papers
Dead-reckoning animal movements in R: a reappraisal using Gundog.Tracks
Richard Gunner,Mark D. Holton,Michael Scantlebury,O. Louis van Schalkwyk,O. Louis van Schalkwyk,O. Louis van Schalkwyk,Holly M. English,Hannah J. Williams,P Hopkins,Flavio Quintana,Agustina Gómez-Laich,Luca Börger,James Redcliffe,Ken Yoda,Takashi Yamamoto,Sam M. Ferreira,Danny Govender,Pauli Viljoen,Angela Bruns,Stephen H. Bell,Nikki J. Marks,Nigel C. Bennett,Mariano Hernan Tonini,Carlos M. Duarte,Martin C. van Rooyen,Mads F. Bertelsen,Craig J. Tambling,Rory P. Wilson +27 more
TL;DR: The function provided will allow anyone familiar with R to dead‐reckon animal tracks readily and locally, as the key complex issues are dealt with by Gundog.Tracks, a valuable, but often overlooked method of reconstructing high‐resolution animal movement paths across diverse species and systems without requiring a bespoke application.
Why did the animal turn? Time-varying step selection analysis for inference between observed turning points in high frequency data
Rhys Munden,Luca Börger,Rory P. Wilson,James Redcliffe,Rowan Brown,Mathieu Garel,Jonathan R. Potts +6 more
TL;DR: By constructing a step selection technique that works between observed turning-points of animals, this method enables step selection to be used on high-frequency movement data, which are becoming increasingly prevalent in modern biologging studies.
Path tortuosity changes the transport cost paradigm in terrestrial animals
Rory P. Wilson,Kayleigh A. R. Rose,Richard S. Metcalfe,Mark D. Holton,James Redcliffe,Richard Gunner,Luca Börger,Anne Loison,J. Miloš,Michael S. Painter,Václav Silovský,Nikki J. Marks,Mathieu Garel,Carole Toïgo,Pascal Marchand,Nigel C. Bennett,Melitta A. McNarry,Kelly A. Mackintosh,M. R. Brown,David M. Scantlebury +19 more
TL;DR: This work measured oxygen consumption in humans to demonstrate that the energetic costs of turning increase disproportionately with both speed and angular velocity, which resulted in the minimum COT speed occurring at very low speeds, which reduced with increased path tortuosity.
Highlighting when animals expend excessive energy for travel using dynamic body acceleration
Rory P. Wilson,Samantha D. Reynolds,Jonathan R. Potts,James Redcliffe,Mark D. Holton,A. C. Buxton,Kayleigh A. R. Rose,Brad Norman +7 more
TL;DR: In this paper , the authors use Dynamic Body Acceleration (DBA), an acceleration-based metric, as a proxy for movement-based power, in tandem with vertical velocity (rate of change in depth) in a shark (Rhincodon typus) to derive the minimum estimated power required to swim at defined vertical velocities.
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Steep slopes, shallow angles; mountain ungulates create their own topography through movements
James Redcliffe,Mark Holton,Phil Hopkins,Mathieu Garel,Pascal Marchand,Gwendoline Wilson,Rowan Brown,Luca Börger +7 more