Foraging behaviour of black guillemots at three Norwegian sites during the breeding season
The intensifcation of coastal development poses potential threats for coastal seabirds, and understanding their habitat use is a key factor to guide conservation and management. In sub-arctic areas, black guillemots (Cepphus grylle) use coastal habitats year-round, which makes them vulnerable to the...
Published in: | Marine Biology |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2023
|
Subjects: | |
Online Access: | https://hdl.handle.net/11250/3069964 https://doi.org/10.1007/s00227-023-04228-x |
id |
ftninstnf:oai:brage.nina.no:11250/3069964 |
---|---|
record_format |
openpolar |
spelling |
ftninstnf:oai:brage.nina.no:11250/3069964 2023-06-18T03:39:36+02:00 Foraging behaviour of black guillemots at three Norwegian sites during the breeding season Dehnhard, Nina Anker-Nilssen, Tycho Johnston, Daniel Masden, Elizabeth A. Lorentsen, Svein-Håkon Christensen-Dalsgaard, Signe Norway 2023 application/pdf https://hdl.handle.net/11250/3069964 https://doi.org/10.1007/s00227-023-04228-x eng eng Egen institusjon: Norwegian institute for nature research (NINA) urn:issn:0025-3162 https://hdl.handle.net/11250/3069964 https://doi.org/10.1007/s00227-023-04228-x cristin:2149650 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2023 The Authors 170 Marine Biology 87 VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Peer reviewed Journal article 2023 ftninstnf https://doi.org/10.1007/s00227-023-04228-x 2023-06-07T22:48:09Z The intensifcation of coastal development poses potential threats for coastal seabirds, and understanding their habitat use is a key factor to guide conservation and management. In sub-arctic areas, black guillemots (Cepphus grylle) use coastal habitats year-round, which makes them vulnerable to the increasing human activities in these areas. In mainland Norway, one of the species’ strongholds, black guillemots are red-listed after substantial population declines. However, their fnescale foraging behaviour has received little attention to date. We collected and analysed GPS tracking data from adult black guillemots at three sites located over a latitudinal gradient of 250 km in central/northern Norway. Maximum foraging ranges of 33 km at Sklinna (65°12′N) for incubating birds, and 18 km at both Vega (65°34′N) and Sklinna for chick-rearing birds, are among the longest reported for this species. At all three sites, foraging probability was highest in shallow waters (<50 m depth) close to the colony and declined with increasing water depth and distance from colony. However, birds from Vega also foraged over deeper waters. Kelp presence was of high importance at Sklinna, but apparently less important at Røst (67°26’N) and Vega. We also found distinct diferences in foraging activity across the day and with tidal height among the sites. Inter-site diferences in habitat use and foraging activity may be explained by diferences in the availability of habitats and suitable prey. Our study highlights the importance of shallow marine areas for black guillemots and shows that habitat use can vary substantially between sites. Cepphus grylle · Marine spatial planning · Habitat use · Species distribution model · Kelp forest publishedVersion Article in Journal/Newspaper Arctic Cepphus grylle Northern Norway Norwegian Institute for Nature Research: Brage NINA Arctic Norway Røst ENVELOPE(11.983,11.983,67.467,67.467) Sklinna ENVELOPE(11.000,11.000,65.200,65.200) Marine Biology 170 7 |
institution |
Open Polar |
collection |
Norwegian Institute for Nature Research: Brage NINA |
op_collection_id |
ftninstnf |
language |
English |
topic |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
spellingShingle |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Dehnhard, Nina Anker-Nilssen, Tycho Johnston, Daniel Masden, Elizabeth A. Lorentsen, Svein-Håkon Christensen-Dalsgaard, Signe Foraging behaviour of black guillemots at three Norwegian sites during the breeding season |
topic_facet |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
description |
The intensifcation of coastal development poses potential threats for coastal seabirds, and understanding their habitat use is a key factor to guide conservation and management. In sub-arctic areas, black guillemots (Cepphus grylle) use coastal habitats year-round, which makes them vulnerable to the increasing human activities in these areas. In mainland Norway, one of the species’ strongholds, black guillemots are red-listed after substantial population declines. However, their fnescale foraging behaviour has received little attention to date. We collected and analysed GPS tracking data from adult black guillemots at three sites located over a latitudinal gradient of 250 km in central/northern Norway. Maximum foraging ranges of 33 km at Sklinna (65°12′N) for incubating birds, and 18 km at both Vega (65°34′N) and Sklinna for chick-rearing birds, are among the longest reported for this species. At all three sites, foraging probability was highest in shallow waters (<50 m depth) close to the colony and declined with increasing water depth and distance from colony. However, birds from Vega also foraged over deeper waters. Kelp presence was of high importance at Sklinna, but apparently less important at Røst (67°26’N) and Vega. We also found distinct diferences in foraging activity across the day and with tidal height among the sites. Inter-site diferences in habitat use and foraging activity may be explained by diferences in the availability of habitats and suitable prey. Our study highlights the importance of shallow marine areas for black guillemots and shows that habitat use can vary substantially between sites. Cepphus grylle · Marine spatial planning · Habitat use · Species distribution model · Kelp forest publishedVersion |
format |
Article in Journal/Newspaper |
author |
Dehnhard, Nina Anker-Nilssen, Tycho Johnston, Daniel Masden, Elizabeth A. Lorentsen, Svein-Håkon Christensen-Dalsgaard, Signe |
author_facet |
Dehnhard, Nina Anker-Nilssen, Tycho Johnston, Daniel Masden, Elizabeth A. Lorentsen, Svein-Håkon Christensen-Dalsgaard, Signe |
author_sort |
Dehnhard, Nina |
title |
Foraging behaviour of black guillemots at three Norwegian sites during the breeding season |
title_short |
Foraging behaviour of black guillemots at three Norwegian sites during the breeding season |
title_full |
Foraging behaviour of black guillemots at three Norwegian sites during the breeding season |
title_fullStr |
Foraging behaviour of black guillemots at three Norwegian sites during the breeding season |
title_full_unstemmed |
Foraging behaviour of black guillemots at three Norwegian sites during the breeding season |
title_sort |
foraging behaviour of black guillemots at three norwegian sites during the breeding season |
publishDate |
2023 |
url |
https://hdl.handle.net/11250/3069964 https://doi.org/10.1007/s00227-023-04228-x |
op_coverage |
Norway |
long_lat |
ENVELOPE(11.983,11.983,67.467,67.467) ENVELOPE(11.000,11.000,65.200,65.200) |
geographic |
Arctic Norway Røst Sklinna |
geographic_facet |
Arctic Norway Røst Sklinna |
genre |
Arctic Cepphus grylle Northern Norway |
genre_facet |
Arctic Cepphus grylle Northern Norway |
op_source |
170 Marine Biology 87 |
op_relation |
Egen institusjon: Norwegian institute for nature research (NINA) urn:issn:0025-3162 https://hdl.handle.net/11250/3069964 https://doi.org/10.1007/s00227-023-04228-x cristin:2149650 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2023 The Authors |
op_doi |
https://doi.org/10.1007/s00227-023-04228-x |
container_title |
Marine Biology |
container_volume |
170 |
container_issue |
7 |
_version_ |
1769004313693126656 |