Relationship between the Pacific Decadal Oscillation (PDO) and persistent organic pollutants in sympatric Alaskan seabird (Uria aalge and U. lomvia) eggs between 1999 and 2010.
Although climate change occurs alongside other anthropogenic ecosystem impacts, little is known about how sea-surface temperature variability influences the ecotoxicology of persistent organic pollutants (POPs). We analyzed POP contaminant levels, and stable isotopes δ15N and δ13C as measures of tro...
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2021
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ftcdlib:oai:escholarship.org:ark:/13030/qt171441x0 2024-06-23T07:51:46+00:00 Relationship between the Pacific Decadal Oscillation (PDO) and persistent organic pollutants in sympatric Alaskan seabird (Uria aalge and U. lomvia) eggs between 1999 and 2010. Kalia, Vrinda Schuur, Stacy Hobson, Keith Chang, Howard Waller, Lance Hare, Steven Gribble, Matthew 2021-01-01 application/pdf https://escholarship.org/uc/item/171441x0 unknown eScholarship, University of California qt171441x0 https://escholarship.org/uc/item/171441x0 public Behavioral ecology Climate variability Ecotoxicology Alaska Animals Birds Charadriiformes Ecosystem Eggs Environmental Monitoring Environmental Pollutants Hydrocarbons Chlorinated Ovum Pacific Ocean Pesticides Polychlorinated Biphenyls article 2021 ftcdlib 2024-05-29T00:34:23Z Although climate change occurs alongside other anthropogenic ecosystem impacts, little is known about how sea-surface temperature variability influences the ecotoxicology of persistent organic pollutants (POPs). We analyzed POP contaminant levels, and stable isotopes δ15N and δ13C as measures of trophic position, in eggs collected from the Gulf of Alaska and Bering Sea between 1999 and 2010 from two similar avian species with different trophic positions: common murres (Uria aalge) and thick-billed murres (Uria lomvia). The ebb and flow of the Pacific Decadal Oscillation (PDO), a long-lived El Niño-like pattern of climate variability in the Pacific Ocean, predicted both trophic position and polychlorinated biphenyl (PCB) levels in thick-billed murres, but not in common murres. There was a similar pattern of association of the PDO with organochlorine pesticide levels in thick-billed murres, but not in common murres. The magnitude of association in thick-billed murres of PDO with the level of a specific PCB congener was a function of the number of chlorine groups on the PCB congener. Although this statistical analysis does not account for all factors contributing to climate variation, this contrast between the species suggests that facultative changes in foraging behavior, reflected in trophic position, can determine how POPs flow through and thereby alter ecosystems under climate change. Article in Journal/Newspaper Bering Sea Uria aalge Uria lomvia Alaska uria University of California: eScholarship Bering Sea Gulf of Alaska Pacific |
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Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Behavioral ecology Climate variability Ecotoxicology Alaska Animals Birds Charadriiformes Ecosystem Eggs Environmental Monitoring Environmental Pollutants Hydrocarbons Chlorinated Ovum Pacific Ocean Pesticides Polychlorinated Biphenyls |
spellingShingle |
Behavioral ecology Climate variability Ecotoxicology Alaska Animals Birds Charadriiformes Ecosystem Eggs Environmental Monitoring Environmental Pollutants Hydrocarbons Chlorinated Ovum Pacific Ocean Pesticides Polychlorinated Biphenyls Kalia, Vrinda Schuur, Stacy Hobson, Keith Chang, Howard Waller, Lance Hare, Steven Gribble, Matthew Relationship between the Pacific Decadal Oscillation (PDO) and persistent organic pollutants in sympatric Alaskan seabird (Uria aalge and U. lomvia) eggs between 1999 and 2010. |
topic_facet |
Behavioral ecology Climate variability Ecotoxicology Alaska Animals Birds Charadriiformes Ecosystem Eggs Environmental Monitoring Environmental Pollutants Hydrocarbons Chlorinated Ovum Pacific Ocean Pesticides Polychlorinated Biphenyls |
description |
Although climate change occurs alongside other anthropogenic ecosystem impacts, little is known about how sea-surface temperature variability influences the ecotoxicology of persistent organic pollutants (POPs). We analyzed POP contaminant levels, and stable isotopes δ15N and δ13C as measures of trophic position, in eggs collected from the Gulf of Alaska and Bering Sea between 1999 and 2010 from two similar avian species with different trophic positions: common murres (Uria aalge) and thick-billed murres (Uria lomvia). The ebb and flow of the Pacific Decadal Oscillation (PDO), a long-lived El Niño-like pattern of climate variability in the Pacific Ocean, predicted both trophic position and polychlorinated biphenyl (PCB) levels in thick-billed murres, but not in common murres. There was a similar pattern of association of the PDO with organochlorine pesticide levels in thick-billed murres, but not in common murres. The magnitude of association in thick-billed murres of PDO with the level of a specific PCB congener was a function of the number of chlorine groups on the PCB congener. Although this statistical analysis does not account for all factors contributing to climate variation, this contrast between the species suggests that facultative changes in foraging behavior, reflected in trophic position, can determine how POPs flow through and thereby alter ecosystems under climate change. |
format |
Article in Journal/Newspaper |
author |
Kalia, Vrinda Schuur, Stacy Hobson, Keith Chang, Howard Waller, Lance Hare, Steven Gribble, Matthew |
author_facet |
Kalia, Vrinda Schuur, Stacy Hobson, Keith Chang, Howard Waller, Lance Hare, Steven Gribble, Matthew |
author_sort |
Kalia, Vrinda |
title |
Relationship between the Pacific Decadal Oscillation (PDO) and persistent organic pollutants in sympatric Alaskan seabird (Uria aalge and U. lomvia) eggs between 1999 and 2010. |
title_short |
Relationship between the Pacific Decadal Oscillation (PDO) and persistent organic pollutants in sympatric Alaskan seabird (Uria aalge and U. lomvia) eggs between 1999 and 2010. |
title_full |
Relationship between the Pacific Decadal Oscillation (PDO) and persistent organic pollutants in sympatric Alaskan seabird (Uria aalge and U. lomvia) eggs between 1999 and 2010. |
title_fullStr |
Relationship between the Pacific Decadal Oscillation (PDO) and persistent organic pollutants in sympatric Alaskan seabird (Uria aalge and U. lomvia) eggs between 1999 and 2010. |
title_full_unstemmed |
Relationship between the Pacific Decadal Oscillation (PDO) and persistent organic pollutants in sympatric Alaskan seabird (Uria aalge and U. lomvia) eggs between 1999 and 2010. |
title_sort |
relationship between the pacific decadal oscillation (pdo) and persistent organic pollutants in sympatric alaskan seabird (uria aalge and u. lomvia) eggs between 1999 and 2010. |
publisher |
eScholarship, University of California |
publishDate |
2021 |
url |
https://escholarship.org/uc/item/171441x0 |
geographic |
Bering Sea Gulf of Alaska Pacific |
geographic_facet |
Bering Sea Gulf of Alaska Pacific |
genre |
Bering Sea Uria aalge Uria lomvia Alaska uria |
genre_facet |
Bering Sea Uria aalge Uria lomvia Alaska uria |
op_relation |
qt171441x0 https://escholarship.org/uc/item/171441x0 |
op_rights |
public |
_version_ |
1802642899075072000 |