scholarly journals Effects of windscape on three-dimensional foraging behaviour in a wide-ranging marine predator, the northern gannet

2019 ◽  
Vol 628 ◽  
pp. 183-193 ◽  
Author(s):  
JV Lane ◽  
DV Spracklen ◽  
KC Hamer
Keyword(s):  
Foraging Behaviour ◽  
Three Dimensional ◽  
Marine Predator ◽  
Northern Gannet

scholarly journals Frequency and consequences of individual dietary specialisation in a wide-ranging marine predator, the northern gannet

2018 ◽  
Vol 604 ◽  
pp. 251-262 ◽  
Author(s):  
TW Bodey ◽  
IR Cleasby ◽  
SC Votier ◽  
KC Hamer ◽  
J Newton ◽  
...  
Keyword(s):  
Marine Predator ◽  
Northern Gannet

scholarly journals Individuality of foraging behaviour in a short-ranging benthic marine predator: incidence and implications

2019 ◽  
Vol 609 ◽  
pp. 209-219 ◽  
Author(s):  
EA Morgan ◽  
C Hassall ◽  
CPF Redfern ◽  
RM Bevan ◽  
KC Hamer
Keyword(s):  
Foraging Behaviour ◽  
Marine Predator

scholarly journals Large-scale climatic anomalies affect marine predator foraging behaviour and demography

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Charles A. Bost ◽  
Cedric Cotté ◽  
Pascal Terray ◽  
Christophe Barbraud ◽  
Cécile Bon ◽  
...  
Keyword(s):  
Large Scale ◽  
Foraging Behaviour ◽  
Marine Predator ◽  
Predator Foraging

Individual specialization in diet by a generalist marine predator reflects specialization in foraging behaviour

2008 ◽  
Vol 77 (6) ◽  
pp. 1082-1091 ◽  
Author(s):  
Kerry J. Woo ◽  
Kyle Hamish Elliott ◽  
Melissa Davidson ◽  
Anthony J. Gaston ◽  
Gail K. Davoren
Keyword(s):  
Foraging Behaviour ◽  
Individual Specialization ◽  
Marine Predator

scholarly journals Three-dimensional space utilization by a marine predator

1999 ◽  
Vol 183 ◽  
pp. 263-273 ◽  
Author(s):  
D Grémillet ◽  
RP Wilson ◽  
S Storch ◽  
Y Gary
Keyword(s):  
Dimensional Space ◽  
Three Dimensional ◽  
Space Utilization ◽  
Marine Predator ◽  
Three Dimensional Space

scholarly journals Volumetric spatial behaviour in rats reveals the anisotropic organisation of navigation

2020 ◽  
Author(s):  
Selim Jedidi-Ayoub ◽  
Karyna Mishchanchuk ◽  
Anyi Liu ◽  
Sophie Renaudineau ◽  
Éléonore Duvelle ◽  
...  
Keyword(s):  
Foraging Behaviour ◽  
Three Dimensional ◽  
Vertical Component ◽  
High Accuracy ◽  
Information Gathering ◽  
Horizontal Component ◽  
Spatial Behaviour ◽  
Horizontal Movement ◽  
Home Base ◽  
Base Formation

Abstract We investigated how access to the vertical dimension influences the natural exploratory and foraging behaviour of rats. Using high-accuracy three-dimensional tracking of position in two- and three-dimensional environments, we sought to determine (i) how rats navigated through the environments with respect to gravity, (ii) where rats chose to form their home bases in volumetric space, and (iii) how they navigated to and from these home bases. To evaluate how horizontal biases may affect these behaviours, we compared a 3D maze where animals preferred to move horizontally to a different 3D configuration where all axes were equally energetically costly to traverse. Additionally, we compared home base formation in two-dimensional arenas with and without walls to the three-dimensional climbing mazes. We report that many behaviours exhibited by rats in horizontal spaces naturally extend to fully volumetric ones, such as home base formation and foraging excursions. We also provide further evidence for the strong differentiation of the horizontal and vertical axes: rats showed a horizontal movement bias, they formed home bases mainly in the bottom layers of both mazes and they generally solved the vertical component of return trajectories before and faster than the horizontal component. We explain the bias towards horizontal movements in terms of energy conservation, while the locations of home bases are explained from an information gathering view as a method for correcting self-localisation.

Individual repeatability of foraging behaviour in a marine predator, the great cormorant, Phalacrocorax carbo

2015 ◽  
Vol 103 ◽  
pp. 83-90 ◽  
Author(s):  
Simon Potier ◽  
Alexandre Carpentier ◽  
David Grémillet ◽  
Boris Leroy ◽  
Amélie Lescroël
Keyword(s):  
Foraging Behaviour ◽  
Great Cormorant ◽  
Phalacrocorax Carbo ◽  
Marine Predator ◽  
Individual Repeatability

scholarly journals Understanding the ontogeny of foraging behaviour: insights from combining marine predator bio-logging with satellite-derived oceanography in hidden Markov models

2018 ◽  
Vol 15 (143) ◽  
pp. 20180084 ◽  
Author(s):  
W. James Grecian ◽  
Jude V. Lane ◽  
Théo Michelot ◽  
Helen M. Wade ◽  
Keith C. Hamer
Keyword(s):  
Foraging Behaviour ◽  
Markov Models ◽  
Transition Probabilities ◽  
Hidden Markov ◽  
Extended Period ◽  
Foraging Strategies ◽  
Habitat Features ◽  
Marine Predator ◽  
Age Related ◽  
Frontal Activity

The development of foraging strategies that enable juveniles to efficiently identify and exploit predictable habitat features is critical for survival and long-term fitness. In the marine environment, meso- and sub-mesoscale features such as oceanographic fronts offer a visible cue to enhanced foraging conditions, but how individuals learn to identify these features is a mystery. In this study, we investigate age-related differences in the fine-scale foraging behaviour of adult (aged ≥ 5 years) and immature (aged 2–4 years) northern gannets Morus bassanus . Using high-resolution GPS-loggers, we reveal that adults have a much narrower foraging distribution than immature birds and much higher individual foraging site fidelity. By conditioning the transition probabilities of a hidden Markov model on satellite-derived measures of frontal activity, we then demonstrate that adults show a stronger response to frontal activity than immature birds, and are more likely to commence foraging behaviour as frontal intensity increases. Together, these results indicate that adult gannets are more proficient foragers than immatures, supporting the hypothesis that foraging specializations are learned during individual exploratory behaviour in early life. Such memory-based individual foraging strategies may also explain the extended period of immaturity observed in gannets and many other long-lived species.

scholarly journals Three-dimensional tracking of a wide-ranging marine predator: flight heights and vulnerability to offshore wind farms

2015 ◽  
Vol 52 (6) ◽  
pp. 1474-1482 ◽  
Author(s):  
Ian R. Cleasby ◽  
Ewan D. Wakefield ◽  
Stuart Bearhop ◽  
Thomas W. Bodey ◽  
Stephen C. Votier ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Wind Farms ◽  
Offshore Wind ◽  
Offshore Wind Farms ◽  
Marine Predator

scholarly journals Modelled mid‐trophic pelagic prey fields improve understanding of marine predator foraging behaviour

Ecography ◽  
2020 ◽  
Vol 43 (7) ◽  
pp. 1014-1026
Author(s):  
D. B. Green ◽  
S. Bestley ◽  
R. Trebilco ◽  
S. P. Corney ◽  
P. Lehodey ◽  
...  
Keyword(s):  
Foraging Behaviour ◽  
Marine Predator ◽  
Pelagic Prey ◽  
Predator Foraging
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