Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Ian Jonsen"'
Autor:
Kimberley Kliska, Rebecca R. McIntosh, Ian Jonsen, Fiona Hume, Peter Dann, Roger Kirkwood, Robert Harcourt
Publikováno v:
Royal Society Open Science, Vol 9, Iss 10 (2022)
Marine ecosystems in southeastern Australia are responding rapidly to climate change. We monitored the diet of the Australian fur seal (Arctocephalus pusillus doriferus), a key marine predator, over 17 years (1998–2014) to examine temporal changes.
Externí odkaz:
https://doaj.org/article/aa5223a478cd4771b5a3c709ddc0fda6
Autor:
Lachlan R. Phillips, Neil Malan, Moninya Roughan, Robert Harcourt, Ian Jonsen, Martin Cox, Andrew S. Brierley, David Slip, Adam Wilkins, Gemma Carroll
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
Coastal pelagic ecosystems are highly variable in space and time, with environmental conditions and the distribution of biomass being driven by complex processes operating at multiple scales. The emergent properties of these processes and their inter
Externí odkaz:
https://doaj.org/article/cc5874240bf346649b4528aff5ab0809
Autor:
Lachlan R. Phillips, Gemma Carroll, Ian Jonsen, Robert Harcourt, Andrew S. Brierley, Adam Wilkins, Martin Cox
Publikováno v:
Royal Society Open Science, Vol 9, Iss 9 (2022)
Understanding how marine predators encounter prey across patchy landscapes remains challenging due to difficulties in measuring the three-dimensional structure of pelagic prey fields at scales relevant to animal movement. We measured at-sea behaviour
Externí odkaz:
https://doaj.org/article/5893fc73156a464484e09f0410c70797
Autor:
Mark A. Hindell, Clive R. McMahon, Ian Jonsen, Robert Harcourt, Fernando Arce, Christophe Guinet
Publikováno v:
Ecology and Evolution, Vol 11, Iss 4, Pp 1620-1633 (2021)
Abstract Partitioning resources is a key mechanism for avoiding intraspecific competition and maximizing individual energy gain. However, in sexually dimorphic species it is difficult to discern if partitioning is due to competition or the different
Externí odkaz:
https://doaj.org/article/2478eed608f642b39f19fd5aa7d8fba5
Autor:
Clive R. McMahon, Fabien Roquet, Sophie Baudel, Mathieu Belbeoch, Sophie Bestley, Clint Blight, Lars Boehme, Fiona Carse, Daniel P. Costa, Michael A. Fedak, Christophe Guinet, Robert Harcourt, Emma Heslop, Mark A. Hindell, Xavier Hoenner, Kim Holland, Mellinda Holland, Fabrice R. A. Jaine, Tiphaine Jeanniard du Dot, Ian Jonsen, Theresa R. Keates, Kit M. Kovacs, Sara Labrousse, Philip Lovell, Christian Lydersen, David March, Matthew Mazloff, Megan K. McKinzie, Mônica M. C. Muelbert, Kevin O’Brien, Lachlan Phillips, Esther Portela, Jonathan Pye, Stephen Rintoul, Katsufumi Sato, Ana M. M. Sequeira, Samantha E. Simmons, Vardis M. Tsontos, Victor Turpin, Esmee van Wijk, Danny Vo, Mia Wege, Frederick Gilbert Whoriskey, Kenady Wilson, Bill Woodward
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
Marine animals equipped with biological and physical electronic sensors have produced long-term data streams on key marine environmental variables, hydrography, animal behavior and ecology. These data are an essential component of the Global Ocean Ob
Externí odkaz:
https://doaj.org/article/014ceaf47bf441dfba272867141d526f
Publikováno v:
Frontiers in Marine Science, Vol 7 (2020)
The East Australian Current (EAC) is a southward flowing western boundary current that transports relatively warm and nutrient-depleted subtropical water along Australia's east coast. The EAC is a highly variable system that is formed by temporally-v
Externí odkaz:
https://doaj.org/article/b2ed5255f29748b3be3bd3a6904146b2
Autor:
Rob Harcourt, Ana M. M. Sequeira, Xuelei Zhang, Fabien Roquet, Kosei Komatsu, Michelle Heupel, Clive McMahon, Fred Whoriskey, Mark Meekan, Gemma Carroll, Stephanie Brodie, Colin Simpfendorfer, Mark Hindell, Ian Jonsen, Daniel P. Costa, Barbara Block, Mônica Muelbert, Bill Woodward, Mike Weise, Kim Aarestrup, Martin Biuw, Lars Boehme, Steven J. Bograd, Dorian Cazau, Jean-Benoit Charrassin, Steven J. Cooke, Paul Cowley, P. J. Nico de Bruyn, Tiphaine Jeanniard du Dot, Carlos Duarte, Víctor M. Eguíluz, Luciana C. Ferreira, Juan Fernández-Gracia, Kimberly Goetz, Yusuke Goto, Christophe Guinet, Mike Hammill, Graeme C. Hays, Elliott L. Hazen, Luis A. Hückstädt, Charlie Huveneers, Sara Iverson, Saifullah Arifin Jaaman, Kongkiat Kittiwattanawong, Kit M. Kovacs, Christian Lydersen, Tim Moltmann, Masaru Naruoka, Lachlan Phillips, Baptiste Picard, Nuno Queiroz, Gilles Reverdin, Katsufumi Sato, David W. Sims, Eva B. Thorstad, Michele Thums, Anne M. Treasure, Andrew W. Trites, Guy D. Williams, Yoshinari Yonehara, Mike A. Fedak
Publikováno v:
Frontiers in Marine Science, Vol 6 (2019)
Animal telemetry is a powerful tool for observing marine animals and the physical environments that they inhabit, from coastal and continental shelf ecosystems to polar seas and open oceans. Satellite-linked biologgers and networks of acoustic receiv
Externí odkaz:
https://doaj.org/article/c21fa796c2544d6aa374dd3fcd5d179d
Autor:
Benjamin Arthur, Mark Hindell, Marthan Bester, Phil Trathan, Ian Jonsen, Iain Staniland, W Chris Oosthuizen, Mia Wege, Mary-Anne Lea
Publikováno v:
PLoS ONE, Vol 12, Iss 6, p e0179322 (2017)
[This corrects the article DOI: 10.1371/journal.pone.0120888.].
Externí odkaz:
https://doaj.org/article/8160cf93cfdd435e8acc59e9ac186e62
Autor:
Benjamin Arthur, Mark Hindell, Marthan Bester, Phil Trathan, Ian Jonsen, Iain Staniland, W Chris Oosthuizen, Mia Wege, Mary-Anne Lea
Publikováno v:
PLoS ONE, Vol 10, Iss 3, p e0120888 (2015)
Strategies employed by wide-ranging foraging animals involve consideration of habitat quality and predictability and should maximise net energy gain. Fidelity to foraging sites is common in areas of high resource availability or where predictable cha
Externí odkaz:
https://doaj.org/article/f587acb1478c44efa091a40fd608e3b6
Autor:
Mónica A Silva, Ian Jonsen, Deborah J F Russell, Rui Prieto, Dave Thompson, Mark F Baumgartner
Publikováno v:
PLoS ONE, Vol 9, Iss 3, p e92277 (2014)
Argos recently implemented a new algorithm to calculate locations of satellite-tracked animals that uses a Kalman filter (KF). The KF algorithm is reported to increase the number and accuracy of estimated positions over the traditional Least Squares
Externí odkaz:
https://doaj.org/article/e67aa6666b6d4b0eb866695fa07772f0