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Ian D. Jonsen
Researcher at Macquarie University
Publications - 96
Citations - 7189
Ian D. Jonsen is an academic researcher from Macquarie University. The author has contributed to research in topics: Foraging & Population. The author has an hindex of 37, co-authored 87 publications receiving 6093 citations. Previous affiliations of Ian D. Jonsen include Bedford Institute of Oceanography & Dalhousie University.
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Journal ArticleDOI
Tracking apex marine predator movements in a dynamic ocean
Barbara A. Block,Ian D. Jonsen,Salvador J. Jorgensen,Arliss J. Winship,Scott A. Shaffer,Steven J. Bograd,Elliott L. Hazen,David G. Foley,Greg A. Breed,Greg A. Breed,Autumn-Lynn Harrison,James E. Ganong,Alan M. Swithenbank,Michael Castleton,Heidi Dewar,Bruce R. Mate,George L. Shillinger,Kurt M. Schaefer,Scott R. Benson,Michael J. Weise,Robert W. Henry,Daniel P. Costa +21 more
TL;DR: It is shown that top predators exploit their environment in predictable ways, providing the foundation for spatial management of large marine ecosystems, and critical habitats across multinational boundaries are identified.
Journal ArticleDOI
Robust state-space modeling of animal movement data
TL;DR: It is shown how known information regarding error distributions can be used to improve inference of the underlying process(es) and demonstrated that the frame- work provides a powerful and flexible method for fitting different behavioral models to tracking data.
Journal ArticleDOI
Predicted habitat shifts of Pacific top predators in a changing climate
Elliott L. Hazen,Elliott L. Hazen,Salvador J. Jorgensen,Ryan R. Rykaczewski,Steven J. Bograd,David G. Foley,David G. Foley,Ian D. Jonsen,Scott A. Shaffer,John P. Dunne,Daniel P. Costa,Larry B. Crowder,Barbara A. Block +12 more
TL;DR: In this paper, the authors investigated the potential effect of climate change on the distribution and diversity of marine top predators and found that, based on data from electronic tags on 23 marine species, a change in core habitat range of up to 35% is possible for some species by 2100.
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
Identifying leatherback turtle foraging behaviour from satellite telemetry using a switching state-space model
TL;DR: A switching state-space model (SSSM) for discerning different movement behaviours hidden within error-prone satellite telemetry data is presented and it is shown that while transiting, leatherbacks make longer, deeper dives; and while foraging, they encounter cooler waters that range from 13 to 22°C.