The Importance of Non-Native Prey, the Zebra Mussel Dreissena polymorpha, for the Declining Greater Scaup Aythya marila: A Case Study at a Key European Staging and Wintering Site
The European population of Greater Scaup Aythya marila has experienced an alarming, ~60% decline in numbers over the last two decades. The brackish lagoons of the Odra River Estuary (ORE) in the south-western Baltic Sea, represent an important area for the species during the non-breeding season in E...
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Language: | English |
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2015
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Online Access: | https://scholia.toolforge.org/work/Q35879461 http://www.wikidata.org/entity/Q35879461 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4692530 https://doi.org/10.1371/JOURNAL.PONE.0145496 |
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ftenkore:wikidata-Q35879461 2023-10-09T21:50:04+02:00 The Importance of Non-Native Prey, the Zebra Mussel Dreissena polymorpha, for the Declining Greater Scaup Aythya marila: A Case Study at a Key European Staging and Wintering Site Marchowski, Dominik Neubauer, Grzegorz Ławicki, Łukasz Wozniczka, Adam Wysocki, Dariusz Guentzel, Sebastian Jarzemski, Maciej 2015-12-28 https://scholia.toolforge.org/work/Q35879461 http://www.wikidata.org/entity/Q35879461 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4692530 https://doi.org/10.1371/JOURNAL.PONE.0145496 en eng Public Library of Science (PLoS) https://scholia.toolforge.org/work/Q35879461 http://www.wikidata.org/entity/Q35879461 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4692530 doi:10.1371/JOURNAL.PONE.0145496 http://creativecommons.org/licenses/by/4.0/ theme:invasion impact theme:wikidata.org/entity/Q112148709 predation zebra mussel invasive species Greater Scaup non-native prey invasion impact journal article 2015 ftenkore https://doi.org/10.1371/JOURNAL.PONE.0145496 2023-09-22T09:36:30Z The European population of Greater Scaup Aythya marila has experienced an alarming, ~60% decline in numbers over the last two decades. The brackish lagoons of the Odra River Estuary (ORE) in the south-western Baltic Sea, represent an important area for the species during the non-breeding season in Europe. The lagoons regularly support over 20 000 Scaup, with peaks exceeding 100 000 (38%-70% of the population wintering in NW Europe and the highest number recorded in April 2011-105 700). In the ORE, Scaup feed almost exclusively on the non-native Zebra Mussel Dreissena polymorpha. This mussel was present in the ORE already in the 19th century and continues to be superabundant. Using the results of 22 Scaup censuses (November to April 2002/2003 to 2013/2014) from the whole ORE (523 km2 of water), we show that Scaup flocks follow areas with the greatest area of occurrence and biomass of the Zebra Mussel, while areas with low mussel densities are ignored. The numbers of Scaup in the ORE are primarily related to the area of Zebra Mussel occurrence on the lagoon's bottom (km2) in a non-linear fashion. Zebra Mussels were absolutely prevalent (97% of biomass) in the digestive tracts of birds unintentionally by-caught in fishing nets (n = 32). We estimate that Scaup alone consume an average of 5 400 tons of Zebra Mussels annually, which represents 5.6% of the total resources of the mussel in the ORE. Our results provide a clear picture of the strong dependence of the declining, migratory duck species on the non-native mussel, its primary food in the ORE. Our findings are particularly important as they can form the basis for the conservation action plan aimed at saving the north-western European populations of Scaup. Article in Journal/Newspaper Aythya marila greater scaup enKORE project PLOS ONE 10 12 e0145496 |
institution |
Open Polar |
collection |
enKORE project |
op_collection_id |
ftenkore |
language |
English |
topic |
theme:invasion impact theme:wikidata.org/entity/Q112148709 predation zebra mussel invasive species Greater Scaup non-native prey invasion impact |
spellingShingle |
theme:invasion impact theme:wikidata.org/entity/Q112148709 predation zebra mussel invasive species Greater Scaup non-native prey invasion impact Marchowski, Dominik Neubauer, Grzegorz Ławicki, Łukasz Wozniczka, Adam Wysocki, Dariusz Guentzel, Sebastian Jarzemski, Maciej The Importance of Non-Native Prey, the Zebra Mussel Dreissena polymorpha, for the Declining Greater Scaup Aythya marila: A Case Study at a Key European Staging and Wintering Site |
topic_facet |
theme:invasion impact theme:wikidata.org/entity/Q112148709 predation zebra mussel invasive species Greater Scaup non-native prey invasion impact |
description |
The European population of Greater Scaup Aythya marila has experienced an alarming, ~60% decline in numbers over the last two decades. The brackish lagoons of the Odra River Estuary (ORE) in the south-western Baltic Sea, represent an important area for the species during the non-breeding season in Europe. The lagoons regularly support over 20 000 Scaup, with peaks exceeding 100 000 (38%-70% of the population wintering in NW Europe and the highest number recorded in April 2011-105 700). In the ORE, Scaup feed almost exclusively on the non-native Zebra Mussel Dreissena polymorpha. This mussel was present in the ORE already in the 19th century and continues to be superabundant. Using the results of 22 Scaup censuses (November to April 2002/2003 to 2013/2014) from the whole ORE (523 km2 of water), we show that Scaup flocks follow areas with the greatest area of occurrence and biomass of the Zebra Mussel, while areas with low mussel densities are ignored. The numbers of Scaup in the ORE are primarily related to the area of Zebra Mussel occurrence on the lagoon's bottom (km2) in a non-linear fashion. Zebra Mussels were absolutely prevalent (97% of biomass) in the digestive tracts of birds unintentionally by-caught in fishing nets (n = 32). We estimate that Scaup alone consume an average of 5 400 tons of Zebra Mussels annually, which represents 5.6% of the total resources of the mussel in the ORE. Our results provide a clear picture of the strong dependence of the declining, migratory duck species on the non-native mussel, its primary food in the ORE. Our findings are particularly important as they can form the basis for the conservation action plan aimed at saving the north-western European populations of Scaup. |
format |
Article in Journal/Newspaper |
author |
Marchowski, Dominik Neubauer, Grzegorz Ławicki, Łukasz Wozniczka, Adam Wysocki, Dariusz Guentzel, Sebastian Jarzemski, Maciej |
author_facet |
Marchowski, Dominik Neubauer, Grzegorz Ławicki, Łukasz Wozniczka, Adam Wysocki, Dariusz Guentzel, Sebastian Jarzemski, Maciej |
author_sort |
Marchowski, Dominik |
title |
The Importance of Non-Native Prey, the Zebra Mussel Dreissena polymorpha, for the Declining Greater Scaup Aythya marila: A Case Study at a Key European Staging and Wintering Site |
title_short |
The Importance of Non-Native Prey, the Zebra Mussel Dreissena polymorpha, for the Declining Greater Scaup Aythya marila: A Case Study at a Key European Staging and Wintering Site |
title_full |
The Importance of Non-Native Prey, the Zebra Mussel Dreissena polymorpha, for the Declining Greater Scaup Aythya marila: A Case Study at a Key European Staging and Wintering Site |
title_fullStr |
The Importance of Non-Native Prey, the Zebra Mussel Dreissena polymorpha, for the Declining Greater Scaup Aythya marila: A Case Study at a Key European Staging and Wintering Site |
title_full_unstemmed |
The Importance of Non-Native Prey, the Zebra Mussel Dreissena polymorpha, for the Declining Greater Scaup Aythya marila: A Case Study at a Key European Staging and Wintering Site |
title_sort |
importance of non-native prey, the zebra mussel dreissena polymorpha, for the declining greater scaup aythya marila: a case study at a key european staging and wintering site |
publisher |
Public Library of Science (PLoS) |
publishDate |
2015 |
url |
https://scholia.toolforge.org/work/Q35879461 http://www.wikidata.org/entity/Q35879461 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4692530 https://doi.org/10.1371/JOURNAL.PONE.0145496 |
genre |
Aythya marila greater scaup |
genre_facet |
Aythya marila greater scaup |
op_relation |
https://scholia.toolforge.org/work/Q35879461 http://www.wikidata.org/entity/Q35879461 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4692530 doi:10.1371/JOURNAL.PONE.0145496 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1371/JOURNAL.PONE.0145496 |
container_title |
PLOS ONE |
container_volume |
10 |
container_issue |
12 |
container_start_page |
e0145496 |
_version_ |
1779313137617469440 |