Reduced foraging effort at the expanding range margin could facilitate poleward shift in a colonial seabird, the Northern gannet Morus bassanus
Abstract: Species distributions are shifting poleward in response to climate change, but not all with the same pace or pattern. In particular, colonial predators may struggle to keep pace with prey because colony formation is rare. Despite its importance, little is known about the complex process of...
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2021
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Online Access: | https://dx.doi.org/10.48448/x0g2-bx57 https://underline.io/lecture/34910-reduced-foraging-effort-at-the-expanding-range-margin-could-facilitate-poleward-shift-in-a-colonial-seabird,-the-northern-gannet-morus-bassanus |
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ftdatacite:10.48448/x0g2-bx57 2023-05-15T16:53:02+02:00 Reduced foraging effort at the expanding range margin could facilitate poleward shift in a colonial seabird, the Northern gannet Morus bassanus 3rd World Seabird Conference 2021 Clark, Bethany 2021 https://dx.doi.org/10.48448/x0g2-bx57 https://underline.io/lecture/34910-reduced-foraging-effort-at-the-expanding-range-margin-could-facilitate-poleward-shift-in-a-colonial-seabird,-the-northern-gannet-morus-bassanus unknown Underline Science Inc. Climate Change Ecosystem Ecology FOS Biological sciences Animal Science Genomics MediaObject article Conference talk Audiovisual 2021 ftdatacite https://doi.org/10.48448/x0g2-bx57 2022-02-09T11:22:26Z Abstract: Species distributions are shifting poleward in response to climate change, but not all with the same pace or pattern. In particular, colonial predators may struggle to keep pace with prey because colony formation is rare. Despite its importance, little is known about the complex process of range shifting in colonial animals. Seabirds provide a useful model, as they are tied to land in the breeding season, but their marine prey is not. Existing colonies provide defence, mates and information, but also cause intense competition for food, which is reflected in high foraging effort as individuals must travel further and search for longer. As such, smaller colonies can expand more quickly than larger colonies, particularly if nearby foraging grounds attract recruits. The presence of nearby colonies also increases foraging effort due to competition, suggesting a possible benefit to being at range margins. Here we examine foraging trip duration and range, using data obtained from bird-borne loggers, to quantify effort across a large latitudinal gradient (48.15°N to 71.23°N) in the northern gannet Morus bassanus. This wide-ranging marine predator provides a rare example of a well-documented poleward-shifting seabird. We collated data representing 850 breeding gannets from 20 of the 54 currently occupied colonies. Trip duration and range both increased substantially with colony size. However, after controlling for colony size, trip duration and range also decreased significantly with latitude suggesting suitable conditions for gannets on the northern edge of their range but poor conditions at the southern edge. Lower foraging effort at the expanding range margin may allow distribution shift in colonial species in response to environmental change if the barriers to colony formation can be overcome. Authors: Bethany Clark¹, Freydís Vigfúsdóttir², Sarah Wanless³, Keith Hamer⁴, Thomas Bodey⁵, Jez Blackburn⁶, Sam Cox⁷, Stefan Garthe⁸, David Grémillet⁹, Amélie Lescroël¹⁰, William Montevecchi¹¹, Pascal Provost¹², Ewan Wakefield¹³, Stephen Votier⁵ ¹BirdLife International, ²University of Iceland, ³Centre for Ecology and Hydrology, ⁴University of Leeds, ⁵University of Exeter, ⁶British Trust for Ornithology, ⁷Centre d'Etude Biologique de Chizé, ⁸Kiel University, ⁹University of Montpellier, ¹⁰Point Blue, ¹¹Memorial University of Newfoundland, ¹²Ligue pour la Protection des Oiseaux, ¹³University of Glasgow Article in Journal/Newspaper Iceland University of Newfoundland DataCite Metadata Store (German National Library of Science and Technology) Wakefield ENVELOPE(-65.183,-65.183,-69.283,-69.283) Blackburn ENVELOPE(-147.267,-147.267,-86.283,-86.283) Amélie ENVELOPE(139.942,139.942,-66.690,-66.690) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Climate Change Ecosystem Ecology FOS Biological sciences Animal Science Genomics |
spellingShingle |
Climate Change Ecosystem Ecology FOS Biological sciences Animal Science Genomics 3rd World Seabird Conference 2021 Clark, Bethany Reduced foraging effort at the expanding range margin could facilitate poleward shift in a colonial seabird, the Northern gannet Morus bassanus |
topic_facet |
Climate Change Ecosystem Ecology FOS Biological sciences Animal Science Genomics |
description |
Abstract: Species distributions are shifting poleward in response to climate change, but not all with the same pace or pattern. In particular, colonial predators may struggle to keep pace with prey because colony formation is rare. Despite its importance, little is known about the complex process of range shifting in colonial animals. Seabirds provide a useful model, as they are tied to land in the breeding season, but their marine prey is not. Existing colonies provide defence, mates and information, but also cause intense competition for food, which is reflected in high foraging effort as individuals must travel further and search for longer. As such, smaller colonies can expand more quickly than larger colonies, particularly if nearby foraging grounds attract recruits. The presence of nearby colonies also increases foraging effort due to competition, suggesting a possible benefit to being at range margins. Here we examine foraging trip duration and range, using data obtained from bird-borne loggers, to quantify effort across a large latitudinal gradient (48.15°N to 71.23°N) in the northern gannet Morus bassanus. This wide-ranging marine predator provides a rare example of a well-documented poleward-shifting seabird. We collated data representing 850 breeding gannets from 20 of the 54 currently occupied colonies. Trip duration and range both increased substantially with colony size. However, after controlling for colony size, trip duration and range also decreased significantly with latitude suggesting suitable conditions for gannets on the northern edge of their range but poor conditions at the southern edge. Lower foraging effort at the expanding range margin may allow distribution shift in colonial species in response to environmental change if the barriers to colony formation can be overcome. Authors: Bethany Clark¹, Freydís Vigfúsdóttir², Sarah Wanless³, Keith Hamer⁴, Thomas Bodey⁵, Jez Blackburn⁶, Sam Cox⁷, Stefan Garthe⁸, David Grémillet⁹, Amélie Lescroël¹⁰, William Montevecchi¹¹, Pascal Provost¹², Ewan Wakefield¹³, Stephen Votier⁵ ¹BirdLife International, ²University of Iceland, ³Centre for Ecology and Hydrology, ⁴University of Leeds, ⁵University of Exeter, ⁶British Trust for Ornithology, ⁷Centre d'Etude Biologique de Chizé, ⁸Kiel University, ⁹University of Montpellier, ¹⁰Point Blue, ¹¹Memorial University of Newfoundland, ¹²Ligue pour la Protection des Oiseaux, ¹³University of Glasgow |
format |
Article in Journal/Newspaper |
author |
3rd World Seabird Conference 2021 Clark, Bethany |
author_facet |
3rd World Seabird Conference 2021 Clark, Bethany |
author_sort |
3rd World Seabird Conference 2021 |
title |
Reduced foraging effort at the expanding range margin could facilitate poleward shift in a colonial seabird, the Northern gannet Morus bassanus |
title_short |
Reduced foraging effort at the expanding range margin could facilitate poleward shift in a colonial seabird, the Northern gannet Morus bassanus |
title_full |
Reduced foraging effort at the expanding range margin could facilitate poleward shift in a colonial seabird, the Northern gannet Morus bassanus |
title_fullStr |
Reduced foraging effort at the expanding range margin could facilitate poleward shift in a colonial seabird, the Northern gannet Morus bassanus |
title_full_unstemmed |
Reduced foraging effort at the expanding range margin could facilitate poleward shift in a colonial seabird, the Northern gannet Morus bassanus |
title_sort |
reduced foraging effort at the expanding range margin could facilitate poleward shift in a colonial seabird, the northern gannet morus bassanus |
publisher |
Underline Science Inc. |
publishDate |
2021 |
url |
https://dx.doi.org/10.48448/x0g2-bx57 https://underline.io/lecture/34910-reduced-foraging-effort-at-the-expanding-range-margin-could-facilitate-poleward-shift-in-a-colonial-seabird,-the-northern-gannet-morus-bassanus |
long_lat |
ENVELOPE(-65.183,-65.183,-69.283,-69.283) ENVELOPE(-147.267,-147.267,-86.283,-86.283) ENVELOPE(139.942,139.942,-66.690,-66.690) |
geographic |
Wakefield Blackburn Amélie |
geographic_facet |
Wakefield Blackburn Amélie |
genre |
Iceland University of Newfoundland |
genre_facet |
Iceland University of Newfoundland |
op_doi |
https://doi.org/10.48448/x0g2-bx57 |
_version_ |
1766043552747356160 |