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Title  |
Personality predicts foraging site fidelity and trip repeatability in a marine predator |
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Journal |
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Year |
2020 |
Publication |
Journal of Animal Ecology |
Abbreviated Journal |
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Volume |
89 |
Issue |
1 |
Pages |
68-79 |
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Keywords |
biologging boldness foraging niche width foraging specialization marine vertebrate movement ecology personality site fidelity |
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Abstract |
Animal populations are often comprised of both foraging specialists and generalists. For instance, some individuals show higher foraging site fidelity (spatial specialization) than others. Such individual differences in degree of specialization can persist over time-scales of months or even years in long-lived animals, but the mechanisms leading to these different individual strategies are not fully understood. There is accumulating evidence that individual variation in foraging behaviour is shaped by animal personality traits, such as boldness. Despite this, the potential for boldness to drive differences in the degree of specialization is unknown. In this study, we used novel object tests to measure boldness in black-legged kittiwakes (Rissa tridactyla) breeding at four colonies in Svalbard and deployed GPS loggers to examine their at-sea foraging behaviour. We estimated the repeatability of foraging trips and used a hidden Markov model to identify locations of foraging sites in order to quantify individual foraging site fidelity. Across the breeding season, bolder birds were more repeatable than shy individuals in the distance and range of their foraging trips, and during the incubation period (but not chick rearing), bolder individuals were more site-faithful. Birds exhibited these differences while showing high spatial similarity in foraging areas, indicating that site selection was not driven by personality-dependent spatial partitioning. We instead suggest that a relationship between boldness and site fidelity may be driven by differences in behavioural flexibility between bold and shy individuals. Together, these results provide a potential mechanism by which widely reported individual differences in foraging specialization may emerge. |
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330 |
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1365-2656 |
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1365-2656 |
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yes |
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7633 |
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Title |
Parasitoids indicate major climate-induced shifts in arctic communities |
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Year |
2020 |
Publication |
Global Change Biology |
Abbreviated Journal |
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Volume |
26 |
Issue |
11 |
Pages |
6276-6295 |
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1036 |
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1365-2486 |
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yes |
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7686 |
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Author |
Boulinier, T., Betoulle, S., Caza, F., St Pierre, Y., Tornos, J., Gamble, A. &Amp; Tasiemski, A |
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Book Chapter |
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2020 |
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54-65 |
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333,1151 |
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Bachelor's thesis |
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1246-7375 |
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yes |
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6951 |
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Title |
Over Winter Microbial Processes in a Svalbard Snow Pack: An Experimental Approach |
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Journal |
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Year |
2020 |
Publication |
Frontiers in Microbiology |
Abbreviated Journal |
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11 |
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1029 |
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1192 |
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ISSN |
1664-302X |
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yes |
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7965 |
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Author |
Y. Kebukawa, M. Zolensly, J. Mathurin, E. Dartois, C. Engrand, J. Duprat, A. Deniset-Besseau, A. Dazzi, M. Fries, T. Ohigashi, D. Wakabayashi, S. Yamashita, Y. Takeichi, Y. Takahashi, M. Kondo, M. Ito, Y. Kodama, Z. Rahman, K. Kobayashi |
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Title |
Organic matter in the Aguas Zarcas (CM2) meteorite: high abundance of aliphatic carbon in metal-rich lithology |
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Peer-reviewed symposium |
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2020 |
Publication |
Lunar and Planetary Science Conference, id 1349 |
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51 |
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1614 |
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1120 |
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Approved |
yes |
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Call Number |
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Serial |
7911 |
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Title |
On the observation of magnetic events on broad-band seismometers |
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Year |
2020 |
Publication |
Earth, planets and space |
Abbreviated Journal |
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Volume |
72 |
Issue |
1 |
Pages |
109 |
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Keywords |
Anthropogenic sources of magnetic noise Seismic instrumentation Sudden Storm Commencements |
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Programme |
133 |
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ISSN |
1880-5981 |
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yes |
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7888 |
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Title |
On the nightglow polarisation for space weather exploration |
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2020 |
Publication |
Journal of Space Weather and Space Climate |
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10 |
Issue |
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Pages |
35 |
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Keywords |
polarisation / aurora |
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Abstract |
We present here observations of the polarisation of four auroral lines in the auroral oval and in the polar cusp using a new ground polarimeter called Petit Cru. Our results confirm the already known polarisation of the red line, and show for the first time that the three other lines observed here (namely 557.7 nm, 391.4 nm and 427.8 nm) are polarised as well up to a few percent. We show that in several circumstances, this polarisation is linked to the local magnetic activity and to the state of the ionosphere through the electron density measured with EISCAT. However, we also show that the contribution of light pollution from nearby cities via scattering can not be ignored and can play an important role in polarisation measurements. This series of observations questions the geophysical origin of the polarisation. It also leaves open its relation to the magnetic field orientation and to the state of both the upper atmosphere and the troposphere. |
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1026 |
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2115-7251 |
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yes |
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Serial |
7796 |
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Title |
Ocean sentinel albatrosses locate illegal vessels and provide the first estimate of the extent of nondeclared fishing |
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2020 |
Publication |
Proceedings of the National Academy of Sciences |
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Volume |
117 |
Issue |
6 |
Pages |
3006-3014 |
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Keywords |
bio-logging conservation illegal fisheries seabird vessel attraction |
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Programme |
109 |
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0027-8424, 1091-6490 |
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yes |
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7684 |
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Author |
Zhiyong Xie, Zhen Wang, Olivier Magand, Alban Thollot, Ralf Ebinghaus, Wenying Mi, Aurelien Dommergue |
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Title |
Occurrence of legacy and emerging organic contaminants in snow at Dome C in the Antarctic |
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2020 |
Publication |
Science of The Total Environment |
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Volume |
741 |
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Pages |
140200 |
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Keywords |
Antarctic Organophosphate esters PAH PFAS Snow |
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Programme |
1028 |
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ISSN |
0048-9697 |
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yes |
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7685 |
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Author |
Petra Quillfeldt, Henri Weimerskirch, Karine Delord, Yves Cherel |
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Title |
Niche switching and leapfrog foraging: movement ecology of sympatric petrels during the early breeding season |
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Journal |
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Year |
2020 |
Publication |
Movement Ecology |
Abbreviated Journal |
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Volume |
8 |
Issue |
1 |
Pages |
23 |
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Keywords |
Breeding schedule Central-place forager Foraging ecology Tracking |
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Abstract |
The timing of events in the early part of the breeding season is crucially important for successful reproduction. Long-lived animals that migrate large distances independently of each other meet at the breeding sites to re-establish their pair bonds and coordinate their breeding duties with their partners. |
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109 |
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ISSN |
2051-3933 |
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yes |
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8080 |
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