Sympatric Breeding Auks Shift between Dietary and Spatial Resource Partitioning across the Annual Cycle
When species competing for the same resources coexist, some segregation in the way they utilize those resources is expected. However, little is known about how closely related sympatric breeding species segregate outside the breeding season. We investigated the annual segregation of three closely re...
Published in: | PLoS ONE |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2013
|
Subjects: | |
Online Access: | https://pure.au.dk/portal/da/publications/sympatric-breeding-auks-shift-between-dietary-and-spatial-resource-partitioning-across-the-annual-cycle(4489f2d8-d0cd-43db-b8b8-52962acdfc20).html https://doi.org/10.1371/journal.pone.0072987 https://pure.au.dk/ws/files/55974407/Linnebjerg_et_al_2013_PLoS_One.pdf |
id |
ftuniaarhuspubl:oai:pure.atira.dk:publications/4489f2d8-d0cd-43db-b8b8-52962acdfc20 |
---|---|
record_format |
openpolar |
spelling |
ftuniaarhuspubl:oai:pure.atira.dk:publications/4489f2d8-d0cd-43db-b8b8-52962acdfc20 2023-05-15T15:47:02+02:00 Sympatric Breeding Auks Shift between Dietary and Spatial Resource Partitioning across the Annual Cycle Linnebjerg, Jannie Fries Fort, Jerome Guilford, Tim Reuleaux, Anna Mosbech, Anders Frederiksen, Morten 2013 application/pdf https://pure.au.dk/portal/da/publications/sympatric-breeding-auks-shift-between-dietary-and-spatial-resource-partitioning-across-the-annual-cycle(4489f2d8-d0cd-43db-b8b8-52962acdfc20).html https://doi.org/10.1371/journal.pone.0072987 https://pure.au.dk/ws/files/55974407/Linnebjerg_et_al_2013_PLoS_One.pdf eng eng info:eu-repo/semantics/openAccess Linnebjerg , J F , Fort , J , Guilford , T , Reuleaux , A , Mosbech , A & Frederiksen , M 2013 , ' Sympatric Breeding Auks Shift between Dietary and Spatial Resource Partitioning across the Annual Cycle ' , PLOS ONE , vol. 8 , no. 8 , pp. e72987 . https://doi.org/10.1371/journal.pone.0072987 article 2013 ftuniaarhuspubl https://doi.org/10.1371/journal.pone.0072987 2020-09-09T22:42:14Z When species competing for the same resources coexist, some segregation in the way they utilize those resources is expected. However, little is known about how closely related sympatric breeding species segregate outside the breeding season. We investigated the annual segregation of three closely related seabirds (razorbill Alcatorda, common guillemot Uriaaalge and Brünnich's guillemot U. lomvia) breeding at the same colony in Southwest Greenland. By combining GPS and geolocation (GLS) tracking with dive depth and stable isotope analyses, we compared spatial and dietary resource partitioning. During the breeding season, we found the three species to segregate in diet and/or dive depth, but less in foraging area. During both the post-breeding and pre-breeding periods, the three species had an increased overlap in diet, but were dispersed over a larger spatial scale. Dive depths were similar across the annual cycle, suggesting morphological adaptations fixed by evolution. Prey choice, on the other hand, seemed much more flexible and therefore more likely to be affected by the immediate presence of potential competitors. Article in Journal/Newspaper brünnich's guillemot common guillemot Greenland Razorbill Aarhus University: Research Greenland PLoS ONE 8 8 e72987 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
description |
When species competing for the same resources coexist, some segregation in the way they utilize those resources is expected. However, little is known about how closely related sympatric breeding species segregate outside the breeding season. We investigated the annual segregation of three closely related seabirds (razorbill Alcatorda, common guillemot Uriaaalge and Brünnich's guillemot U. lomvia) breeding at the same colony in Southwest Greenland. By combining GPS and geolocation (GLS) tracking with dive depth and stable isotope analyses, we compared spatial and dietary resource partitioning. During the breeding season, we found the three species to segregate in diet and/or dive depth, but less in foraging area. During both the post-breeding and pre-breeding periods, the three species had an increased overlap in diet, but were dispersed over a larger spatial scale. Dive depths were similar across the annual cycle, suggesting morphological adaptations fixed by evolution. Prey choice, on the other hand, seemed much more flexible and therefore more likely to be affected by the immediate presence of potential competitors. |
format |
Article in Journal/Newspaper |
author |
Linnebjerg, Jannie Fries Fort, Jerome Guilford, Tim Reuleaux, Anna Mosbech, Anders Frederiksen, Morten |
spellingShingle |
Linnebjerg, Jannie Fries Fort, Jerome Guilford, Tim Reuleaux, Anna Mosbech, Anders Frederiksen, Morten Sympatric Breeding Auks Shift between Dietary and Spatial Resource Partitioning across the Annual Cycle |
author_facet |
Linnebjerg, Jannie Fries Fort, Jerome Guilford, Tim Reuleaux, Anna Mosbech, Anders Frederiksen, Morten |
author_sort |
Linnebjerg, Jannie Fries |
title |
Sympatric Breeding Auks Shift between Dietary and Spatial Resource Partitioning across the Annual Cycle |
title_short |
Sympatric Breeding Auks Shift between Dietary and Spatial Resource Partitioning across the Annual Cycle |
title_full |
Sympatric Breeding Auks Shift between Dietary and Spatial Resource Partitioning across the Annual Cycle |
title_fullStr |
Sympatric Breeding Auks Shift between Dietary and Spatial Resource Partitioning across the Annual Cycle |
title_full_unstemmed |
Sympatric Breeding Auks Shift between Dietary and Spatial Resource Partitioning across the Annual Cycle |
title_sort |
sympatric breeding auks shift between dietary and spatial resource partitioning across the annual cycle |
publishDate |
2013 |
url |
https://pure.au.dk/portal/da/publications/sympatric-breeding-auks-shift-between-dietary-and-spatial-resource-partitioning-across-the-annual-cycle(4489f2d8-d0cd-43db-b8b8-52962acdfc20).html https://doi.org/10.1371/journal.pone.0072987 https://pure.au.dk/ws/files/55974407/Linnebjerg_et_al_2013_PLoS_One.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
brünnich's guillemot common guillemot Greenland Razorbill |
genre_facet |
brünnich's guillemot common guillemot Greenland Razorbill |
op_source |
Linnebjerg , J F , Fort , J , Guilford , T , Reuleaux , A , Mosbech , A & Frederiksen , M 2013 , ' Sympatric Breeding Auks Shift between Dietary and Spatial Resource Partitioning across the Annual Cycle ' , PLOS ONE , vol. 8 , no. 8 , pp. e72987 . https://doi.org/10.1371/journal.pone.0072987 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0072987 |
container_title |
PLoS ONE |
container_volume |
8 |
container_issue |
8 |
container_start_page |
e72987 |
_version_ |
1766381847100522496 |