Data from: Taking a trip to the shelf: behavioural decisions are mediated by the proximity to foraging habitats in the black-legged kittiwake
1. For marine top predators like seabirds, the oceans represent a multitude of habitats regarding oceanographic conditions and food availability. Worldwide, these habitats are undergoing alterations due to changes in climate and increased anthropogenic impact. This is causing a growing concern on ho...
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ftdryad:oai:v1.datadryad.org:10255/dryad.163456 2023-05-15T15:44:58+02:00 Data from: Taking a trip to the shelf: behavioural decisions are mediated by the proximity to foraging habitats in the black-legged kittiwake Christensen-Dalsgaard, Signe May, Roel Lorentsen, Svein-Håkon Norwegian sea Holocene 2017-12-11T19:45:39Z http://hdl.handle.net/10255/dryad.163456 https://doi.org/10.5061/dryad.57nr2 unknown doi:10.5061/dryad.57nr2/1 doi:10.1002/ece3.3700 doi:10.5061/dryad.57nr2 Christensen-Dalsgaard S, May R, Lorentsen S (2018) Taking a trip to the shelf: behavioral decisions are mediated by the proximity to foraging habitats in the black-legged kittiwake. Ecology and Evolution 8(2): 866–878. http://hdl.handle.net/10255/dryad.163456 central-place foragers foraging decisions GPS tracking resource allocation seabird Article 2017 ftdryad https://doi.org/10.5061/dryad.57nr2 https://doi.org/10.5061/dryad.57nr2/1 https://doi.org/10.1002/ece3.3700 2020-01-01T16:00:16Z 1. For marine top predators like seabirds, the oceans represent a multitude of habitats regarding oceanographic conditions and food availability. Worldwide, these habitats are undergoing alterations due to changes in climate and increased anthropogenic impact. This is causing a growing concern on how seabird populations might adapt to these changes. 2. Understanding how seabird populations respond to fluctuating environmental conditions and to what extent behavioural flexibility can buffer variations in food availability, can help predict how seabirds may cope with changes in the marine environment. Such knowledge is important to implement proper long-term conservation measures intended to protect marine predators. 3. We explored behavioural flexibility in choice of foraging habitat of chick-rearing black-legged kittiwakes Rissa tridactyla during multiple years. By comparing foraging behaviour of individuals from two colonies with large differences in oceanographic conditions and distances to predictable feeding areas at the Norwegian shelf break, we investigated how foraging decisions are related to intrinsic and extrinsic factors. 4. We found that proximity to the shelf break determined which factors drove the decision to forage there. At the colony near the shelf break, time of departure from the colony and wind speed were most important in driving the choice of habitat. At the colony farther from the shelf break, the decision to forage there was driven by adult body condition. Birds furthermore adjusted foraging behaviour metrics according to time of the day, tide, weather conditions, body condition as well as the age of the chicks. 5. The study shows that kittiwakes have high degree of flexibility in their behavioural response to a variable marine environment, which might help them buffer changes in prey distribution around the colonies. The flexibility was, however, dependent on the availability of foraging habitats near the colony. Article in Journal/Newspaper Black-legged Kittiwake Norwegian Sea rissa tridactyla Dryad Digital Repository (Duke University) Norwegian Sea |
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Open Polar |
collection |
Dryad Digital Repository (Duke University) |
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ftdryad |
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unknown |
topic |
central-place foragers foraging decisions GPS tracking resource allocation seabird |
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central-place foragers foraging decisions GPS tracking resource allocation seabird Christensen-Dalsgaard, Signe May, Roel Lorentsen, Svein-Håkon Data from: Taking a trip to the shelf: behavioural decisions are mediated by the proximity to foraging habitats in the black-legged kittiwake |
topic_facet |
central-place foragers foraging decisions GPS tracking resource allocation seabird |
description |
1. For marine top predators like seabirds, the oceans represent a multitude of habitats regarding oceanographic conditions and food availability. Worldwide, these habitats are undergoing alterations due to changes in climate and increased anthropogenic impact. This is causing a growing concern on how seabird populations might adapt to these changes. 2. Understanding how seabird populations respond to fluctuating environmental conditions and to what extent behavioural flexibility can buffer variations in food availability, can help predict how seabirds may cope with changes in the marine environment. Such knowledge is important to implement proper long-term conservation measures intended to protect marine predators. 3. We explored behavioural flexibility in choice of foraging habitat of chick-rearing black-legged kittiwakes Rissa tridactyla during multiple years. By comparing foraging behaviour of individuals from two colonies with large differences in oceanographic conditions and distances to predictable feeding areas at the Norwegian shelf break, we investigated how foraging decisions are related to intrinsic and extrinsic factors. 4. We found that proximity to the shelf break determined which factors drove the decision to forage there. At the colony near the shelf break, time of departure from the colony and wind speed were most important in driving the choice of habitat. At the colony farther from the shelf break, the decision to forage there was driven by adult body condition. Birds furthermore adjusted foraging behaviour metrics according to time of the day, tide, weather conditions, body condition as well as the age of the chicks. 5. The study shows that kittiwakes have high degree of flexibility in their behavioural response to a variable marine environment, which might help them buffer changes in prey distribution around the colonies. The flexibility was, however, dependent on the availability of foraging habitats near the colony. |
format |
Article in Journal/Newspaper |
author |
Christensen-Dalsgaard, Signe May, Roel Lorentsen, Svein-Håkon |
author_facet |
Christensen-Dalsgaard, Signe May, Roel Lorentsen, Svein-Håkon |
author_sort |
Christensen-Dalsgaard, Signe |
title |
Data from: Taking a trip to the shelf: behavioural decisions are mediated by the proximity to foraging habitats in the black-legged kittiwake |
title_short |
Data from: Taking a trip to the shelf: behavioural decisions are mediated by the proximity to foraging habitats in the black-legged kittiwake |
title_full |
Data from: Taking a trip to the shelf: behavioural decisions are mediated by the proximity to foraging habitats in the black-legged kittiwake |
title_fullStr |
Data from: Taking a trip to the shelf: behavioural decisions are mediated by the proximity to foraging habitats in the black-legged kittiwake |
title_full_unstemmed |
Data from: Taking a trip to the shelf: behavioural decisions are mediated by the proximity to foraging habitats in the black-legged kittiwake |
title_sort |
data from: taking a trip to the shelf: behavioural decisions are mediated by the proximity to foraging habitats in the black-legged kittiwake |
publishDate |
2017 |
url |
http://hdl.handle.net/10255/dryad.163456 https://doi.org/10.5061/dryad.57nr2 |
op_coverage |
Norwegian sea Holocene |
geographic |
Norwegian Sea |
geographic_facet |
Norwegian Sea |
genre |
Black-legged Kittiwake Norwegian Sea rissa tridactyla |
genre_facet |
Black-legged Kittiwake Norwegian Sea rissa tridactyla |
op_relation |
doi:10.5061/dryad.57nr2/1 doi:10.1002/ece3.3700 doi:10.5061/dryad.57nr2 Christensen-Dalsgaard S, May R, Lorentsen S (2018) Taking a trip to the shelf: behavioral decisions are mediated by the proximity to foraging habitats in the black-legged kittiwake. Ecology and Evolution 8(2): 866–878. http://hdl.handle.net/10255/dryad.163456 |
op_doi |
https://doi.org/10.5061/dryad.57nr2 https://doi.org/10.5061/dryad.57nr2/1 https://doi.org/10.1002/ece3.3700 |
_version_ |
1766379338407608320 |