Winter locations of red-throated divers from geolocation and feather isotope signatures.
Migratory species have geographically separate distributions during their annual cycle, and these areas can vary between populations and individuals. This can lead to differential stress levels being experienced across a species range. Gathering informa-tion on the areas used during the annual cycle...
Published in: | Ecology and Evolution |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Wiley
2022
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Online Access: | http://hdl.handle.net/10138/347544 |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/347544 2024-01-07T09:44:11+01:00 Winter locations of red-throated divers from geolocation and feather isotope signatures. Duckworth, James O'Brien, Susan Petersen, Ib Krag Petersen, Aevar Benediktsson, Guðmundur Johnson, Logan Lehikoinen, Petteri Okill, David Väisänen, Roni Williams, Jim Williams, Stuart Daunt, Francis Green, Jonathan A. Organismal and Evolutionary Biology Research Programme Zoology 2022-08-29T12:02:11Z 10 application/pdf http://hdl.handle.net/10138/347544 eng eng Wiley 10.1002/ece3.9209 Duckworth , J , O'Brien , S , Petersen , I K , Petersen , A , Benediktsson , G , Johnson , L , Lehikoinen , P , Okill , D , Väisänen , R , Williams , J , Williams , S , Daunt , F & Green , J A 2022 , ' Winter locations of red-throated divers from geolocation and feather isotope signatures. ' , Ecology and Evolution , vol. 12 , no. 8 , e9209 . https://doi.org/10.1002/ece3.9209 ORCID: /0000-0002-2272-024X/work/118366383 8e544897-7947-43fd-bb9a-fd32e36e70bd http://hdl.handle.net/10138/347544 000843320000001 cc_by openAccess info:eu-repo/semantics/openAccess 1181 Ecology evolutionary biology Gavia GLS isotope loon movement STABLE-ISOTOPES GAVIA-STELLATA SEABIRD TRACKING MOVEMENTS MIGRATION Article publishedVersion 2022 ftunivhelsihelda 2023-12-14T00:15:02Z Migratory species have geographically separate distributions during their annual cycle, and these areas can vary between populations and individuals. This can lead to differential stress levels being experienced across a species range. Gathering informa-tion on the areas used during the annual cycle of red- throated divers (RTDs; Gavia stel-lata) has become an increasingly pressing issue, as they are a species of concern when considering the effects of disturbance from offshore wind farms and the associated ship traffic. Here, we use light- based geolocator tags, deployed during the summer breeding season, to determine the non- breeding winter location of RTDs from breed-ing locations in Scotland, Finland, and Iceland. We also use δ15N and δ13C isotope signatures, from feather samples, to link population- level differences in areas used in the molt period to population- level differences in isotope signatures. We found from geolocator data that RTDs from the three different breeding locations did not overlap in their winter distributions. Differences in isotope signatures suggested this spatial separation was also evident in the molting period, when geolocation data were unavailable. We also found that of the three populations, RTDs breeding in Iceland moved the shortest distance from their breeding grounds to their wintering grounds.In contrast, RTDs breeding in Finland moved the furthest, with a westward migration from the Baltic into the southern North Sea. Overall, these results suggest that RTDs breeding in Finland are likely to encounter anthropogenic activity during the win-ter period, where they currently overlap with areas of future planned developments. Icelandic and Scottish birds are less likely to be affected, due to less ship activity and few or no offshore wind farms in their wintering distributions. We also demonstrate that separating the three populations isotopically is possible and suggest further work to allocate breeding individuals to wintering areas based solely on feather samples. ... Article in Journal/Newspaper Iceland HELDA – University of Helsinki Open Repository Ecology and Evolution 12 8 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
1181 Ecology evolutionary biology Gavia GLS isotope loon movement STABLE-ISOTOPES GAVIA-STELLATA SEABIRD TRACKING MOVEMENTS MIGRATION |
spellingShingle |
1181 Ecology evolutionary biology Gavia GLS isotope loon movement STABLE-ISOTOPES GAVIA-STELLATA SEABIRD TRACKING MOVEMENTS MIGRATION Duckworth, James O'Brien, Susan Petersen, Ib Krag Petersen, Aevar Benediktsson, Guðmundur Johnson, Logan Lehikoinen, Petteri Okill, David Väisänen, Roni Williams, Jim Williams, Stuart Daunt, Francis Green, Jonathan A. Winter locations of red-throated divers from geolocation and feather isotope signatures. |
topic_facet |
1181 Ecology evolutionary biology Gavia GLS isotope loon movement STABLE-ISOTOPES GAVIA-STELLATA SEABIRD TRACKING MOVEMENTS MIGRATION |
description |
Migratory species have geographically separate distributions during their annual cycle, and these areas can vary between populations and individuals. This can lead to differential stress levels being experienced across a species range. Gathering informa-tion on the areas used during the annual cycle of red- throated divers (RTDs; Gavia stel-lata) has become an increasingly pressing issue, as they are a species of concern when considering the effects of disturbance from offshore wind farms and the associated ship traffic. Here, we use light- based geolocator tags, deployed during the summer breeding season, to determine the non- breeding winter location of RTDs from breed-ing locations in Scotland, Finland, and Iceland. We also use δ15N and δ13C isotope signatures, from feather samples, to link population- level differences in areas used in the molt period to population- level differences in isotope signatures. We found from geolocator data that RTDs from the three different breeding locations did not overlap in their winter distributions. Differences in isotope signatures suggested this spatial separation was also evident in the molting period, when geolocation data were unavailable. We also found that of the three populations, RTDs breeding in Iceland moved the shortest distance from their breeding grounds to their wintering grounds.In contrast, RTDs breeding in Finland moved the furthest, with a westward migration from the Baltic into the southern North Sea. Overall, these results suggest that RTDs breeding in Finland are likely to encounter anthropogenic activity during the win-ter period, where they currently overlap with areas of future planned developments. Icelandic and Scottish birds are less likely to be affected, due to less ship activity and few or no offshore wind farms in their wintering distributions. We also demonstrate that separating the three populations isotopically is possible and suggest further work to allocate breeding individuals to wintering areas based solely on feather samples. ... |
author2 |
Organismal and Evolutionary Biology Research Programme Zoology |
format |
Article in Journal/Newspaper |
author |
Duckworth, James O'Brien, Susan Petersen, Ib Krag Petersen, Aevar Benediktsson, Guðmundur Johnson, Logan Lehikoinen, Petteri Okill, David Väisänen, Roni Williams, Jim Williams, Stuart Daunt, Francis Green, Jonathan A. |
author_facet |
Duckworth, James O'Brien, Susan Petersen, Ib Krag Petersen, Aevar Benediktsson, Guðmundur Johnson, Logan Lehikoinen, Petteri Okill, David Väisänen, Roni Williams, Jim Williams, Stuart Daunt, Francis Green, Jonathan A. |
author_sort |
Duckworth, James |
title |
Winter locations of red-throated divers from geolocation and feather isotope signatures. |
title_short |
Winter locations of red-throated divers from geolocation and feather isotope signatures. |
title_full |
Winter locations of red-throated divers from geolocation and feather isotope signatures. |
title_fullStr |
Winter locations of red-throated divers from geolocation and feather isotope signatures. |
title_full_unstemmed |
Winter locations of red-throated divers from geolocation and feather isotope signatures. |
title_sort |
winter locations of red-throated divers from geolocation and feather isotope signatures. |
publisher |
Wiley |
publishDate |
2022 |
url |
http://hdl.handle.net/10138/347544 |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
10.1002/ece3.9209 Duckworth , J , O'Brien , S , Petersen , I K , Petersen , A , Benediktsson , G , Johnson , L , Lehikoinen , P , Okill , D , Väisänen , R , Williams , J , Williams , S , Daunt , F & Green , J A 2022 , ' Winter locations of red-throated divers from geolocation and feather isotope signatures. ' , Ecology and Evolution , vol. 12 , no. 8 , e9209 . https://doi.org/10.1002/ece3.9209 ORCID: /0000-0002-2272-024X/work/118366383 8e544897-7947-43fd-bb9a-fd32e36e70bd http://hdl.handle.net/10138/347544 000843320000001 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Ecology and Evolution |
container_volume |
12 |
container_issue |
8 |
_version_ |
1787425516680118272 |