Migration and opportunistic feeding increase PCB accumulation in Arctic seabirds
It is widely accepted that body concentrations of persistent organic pollutants (POPs) tend to increase with trophic level (TL). Yet, little attention has been paid to the causes underlying differences in POP body concentrations between species occupying similar TLs. In this paper we use two modelin...
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ftunivgent:oai:archive.ugent.be:4166838 2023-06-11T04:03:23+02:00 Migration and opportunistic feeding increase PCB accumulation in Arctic seabirds Baert, Jan Janssen, Colin Borgå, Katrine De Laender, Frederik 2013 application/pdf https://biblio.ugent.be/publication/4166838 http://hdl.handle.net/1854/LU-4166838 https://doi.org/10.1021/es402898t https://biblio.ugent.be/publication/4166838/file/4170464 eng eng https://biblio.ugent.be/publication/4166838 http://hdl.handle.net/1854/LU-4166838 http://dx.doi.org/10.1021/es402898t https://biblio.ugent.be/publication/4166838/file/4170464 No license (in copyright) info:eu-repo/semantics/restrictedAccess ENVIRONMENTAL SCIENCE & TECHNOLOGY ISSN: 0013-936X Biology and Life Sciences PERSISTENT ORGANIC POLLUTANTS GULLS LARUS-HYPERBOREUS STABLE-ISOTOPE ANALYSES BARENTS-SEA FOOD-WEB ORGANOCHLORINE CONTAMINANTS TROPHIC RELATIONSHIPS NORTHWATER POLYNYA TOP PREDATOR SUMMER DIET journalArticle info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2013 ftunivgent https://doi.org/10.1021/es402898t 2023-05-10T22:34:21Z It is widely accepted that body concentrations of persistent organic pollutants (POPs) tend to increase with trophic level (TL). Yet, little attention has been paid to the causes underlying differences in POP body concentrations between species occupying similar TLs. In this paper we use two modeling approaches to quantify the importance of migration and opportunistic feeding, relative to that of trophic level, in explaining interspecific differences in polychlorinated biphenyl (PCB) body concentrations between 6 Arctic seabird species breeding in the Barents Sea: Little Auk (Alle alle), Black Guillemot (Cepphus grylle), Brünnich’s Guillemot (Uria lomvia), Common Eider (Somateria mollissima), Black-legged Kittiwake (Rissa tridactyla) and Glaucous Gull (Larus hyperboreus). As a first approach, we use additive models to analyse two independent datasets (n=470 and n=726). We demonstrate that migration, opportunistic feeding and TL significantly (p<0.001) increase PCB body concentrations by a factor 3.61-4.10, 2.66-20.95 and 2.38-2.41, respectively. Our second approach, using a mechanistic bioaccumulation model, confirmed these positive effects on the body burdens but suggested lower effects of migration, opportunistic feeding and TL (1.55, 2.39 and 2.38) than did our statistical analysis. These two independent approaches demonstrate that the effects of migration and opportunistic feeding on seabird body burdens can be similar to that of an increase of one TL, and should therefore be accounted for in future analyses. Article in Journal/Newspaper Alle alle Arctic Barents Sea Black guillemot Black-legged Kittiwake Cepphus grylle Common Eider Glaucous Gull Larus hyperboreus little auk rissa tridactyla Somateria mollissima Uria lomvia uria Ghent University Academic Bibliography Arctic Barents Sea Environmental Science & Technology 47 20 11793 11801 |
institution |
Open Polar |
collection |
Ghent University Academic Bibliography |
op_collection_id |
ftunivgent |
language |
English |
topic |
Biology and Life Sciences PERSISTENT ORGANIC POLLUTANTS GULLS LARUS-HYPERBOREUS STABLE-ISOTOPE ANALYSES BARENTS-SEA FOOD-WEB ORGANOCHLORINE CONTAMINANTS TROPHIC RELATIONSHIPS NORTHWATER POLYNYA TOP PREDATOR SUMMER DIET |
spellingShingle |
Biology and Life Sciences PERSISTENT ORGANIC POLLUTANTS GULLS LARUS-HYPERBOREUS STABLE-ISOTOPE ANALYSES BARENTS-SEA FOOD-WEB ORGANOCHLORINE CONTAMINANTS TROPHIC RELATIONSHIPS NORTHWATER POLYNYA TOP PREDATOR SUMMER DIET Baert, Jan Janssen, Colin Borgå, Katrine De Laender, Frederik Migration and opportunistic feeding increase PCB accumulation in Arctic seabirds |
topic_facet |
Biology and Life Sciences PERSISTENT ORGANIC POLLUTANTS GULLS LARUS-HYPERBOREUS STABLE-ISOTOPE ANALYSES BARENTS-SEA FOOD-WEB ORGANOCHLORINE CONTAMINANTS TROPHIC RELATIONSHIPS NORTHWATER POLYNYA TOP PREDATOR SUMMER DIET |
description |
It is widely accepted that body concentrations of persistent organic pollutants (POPs) tend to increase with trophic level (TL). Yet, little attention has been paid to the causes underlying differences in POP body concentrations between species occupying similar TLs. In this paper we use two modeling approaches to quantify the importance of migration and opportunistic feeding, relative to that of trophic level, in explaining interspecific differences in polychlorinated biphenyl (PCB) body concentrations between 6 Arctic seabird species breeding in the Barents Sea: Little Auk (Alle alle), Black Guillemot (Cepphus grylle), Brünnich’s Guillemot (Uria lomvia), Common Eider (Somateria mollissima), Black-legged Kittiwake (Rissa tridactyla) and Glaucous Gull (Larus hyperboreus). As a first approach, we use additive models to analyse two independent datasets (n=470 and n=726). We demonstrate that migration, opportunistic feeding and TL significantly (p<0.001) increase PCB body concentrations by a factor 3.61-4.10, 2.66-20.95 and 2.38-2.41, respectively. Our second approach, using a mechanistic bioaccumulation model, confirmed these positive effects on the body burdens but suggested lower effects of migration, opportunistic feeding and TL (1.55, 2.39 and 2.38) than did our statistical analysis. These two independent approaches demonstrate that the effects of migration and opportunistic feeding on seabird body burdens can be similar to that of an increase of one TL, and should therefore be accounted for in future analyses. |
format |
Article in Journal/Newspaper |
author |
Baert, Jan Janssen, Colin Borgå, Katrine De Laender, Frederik |
author_facet |
Baert, Jan Janssen, Colin Borgå, Katrine De Laender, Frederik |
author_sort |
Baert, Jan |
title |
Migration and opportunistic feeding increase PCB accumulation in Arctic seabirds |
title_short |
Migration and opportunistic feeding increase PCB accumulation in Arctic seabirds |
title_full |
Migration and opportunistic feeding increase PCB accumulation in Arctic seabirds |
title_fullStr |
Migration and opportunistic feeding increase PCB accumulation in Arctic seabirds |
title_full_unstemmed |
Migration and opportunistic feeding increase PCB accumulation in Arctic seabirds |
title_sort |
migration and opportunistic feeding increase pcb accumulation in arctic seabirds |
publishDate |
2013 |
url |
https://biblio.ugent.be/publication/4166838 http://hdl.handle.net/1854/LU-4166838 https://doi.org/10.1021/es402898t https://biblio.ugent.be/publication/4166838/file/4170464 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Alle alle Arctic Barents Sea Black guillemot Black-legged Kittiwake Cepphus grylle Common Eider Glaucous Gull Larus hyperboreus little auk rissa tridactyla Somateria mollissima Uria lomvia uria |
genre_facet |
Alle alle Arctic Barents Sea Black guillemot Black-legged Kittiwake Cepphus grylle Common Eider Glaucous Gull Larus hyperboreus little auk rissa tridactyla Somateria mollissima Uria lomvia uria |
op_source |
ENVIRONMENTAL SCIENCE & TECHNOLOGY ISSN: 0013-936X |
op_relation |
https://biblio.ugent.be/publication/4166838 http://hdl.handle.net/1854/LU-4166838 http://dx.doi.org/10.1021/es402898t https://biblio.ugent.be/publication/4166838/file/4170464 |
op_rights |
No license (in copyright) info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1021/es402898t |
container_title |
Environmental Science & Technology |
container_volume |
47 |
container_issue |
20 |
container_start_page |
11793 |
op_container_end_page |
11801 |
_version_ |
1768379083355324416 |