Supplementary material from "Small birds, big effects: the little auk ( Alle alle ) transforms high Arctic ecosystems"
In some arctic areas, marine-derived nutrients (MDN) resulting from fish migrations fuel freshwater and terrestrial ecosystems, increasing primary production and biodiversity. Less is known, however, about the role of seabird-MDN in shaping ecosystems. Here, we examine how the most abundant seabird...
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ftdatacite:10.6084/m9.figshare.c.3683161 2023-05-15T13:16:14+02:00 Supplementary material from "Small birds, big effects: the little auk ( Alle alle ) transforms high Arctic ecosystems" González-Bergonzoni, Ivan Johansen, Kasper L. Mosbech, Anders Landkildehus, Frank Jeppesen, Erik Davidson, Thomas A. 2017 https://dx.doi.org/10.6084/m9.figshare.c.3683161 https://figshare.com/collections/Supplementary_material_from_Small_birds_big_effects_the_little_auk_i_Alle_alle_i_transforms_high_Arctic_ecosystems_/3683161 unknown Figshare https://dx.doi.org/10.1098/rspb.2016.2572 CC BY https://creativecommons.org/licenses/by/4.0 CC-BY Environmental Science Ecology FOS Biological sciences Collection article 2017 ftdatacite https://doi.org/10.6084/m9.figshare.c.3683161 https://doi.org/10.1098/rspb.2016.2572 2021-11-05T12:55:41Z In some arctic areas, marine-derived nutrients (MDN) resulting from fish migrations fuel freshwater and terrestrial ecosystems, increasing primary production and biodiversity. Less is known, however, about the role of seabird-MDN in shaping ecosystems. Here, we examine how the most abundant seabird in the North Atlantic, the little auk ( Alle alle ), alters freshwater and terrestrial ecosystems around the North Water Polynya (NOW) in Greenland. We compare stable isotope ratios ( δ 15 N and δ 13 C) of freshwater and terrestrial biota, terrestrial vegetation indices and physical–chemical properties, productivity and community structure of fresh waters in catchments with and without little auk colonies. The presence of colonies profoundly alters freshwater and terrestrial ecosystems by providing nutrients and massively enhancing primary production. Based on elevated δ 15 N in MDN, we estimate that MDN fuels more than 85% of terrestrial and aquatic biomass in bird influenced systems. Furthermore, by using different proxies of bird impact (colony distance, algal δ 15 N) it is possible to identify a gradient in ecosystem response to increasing bird impact. Little auk impact acidifies the freshwater systems, reducing taxonomic richness of macroinvertebrates and truncating food webs. These results demonstrate that the little auk acts as an ecosystem engineer, transforming ecosystems across a vast region of Northwest Greenland. Article in Journal/Newspaper Alle alle Arctic Greenland little auk North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Arctic Greenland |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Environmental Science Ecology FOS Biological sciences |
spellingShingle |
Environmental Science Ecology FOS Biological sciences González-Bergonzoni, Ivan Johansen, Kasper L. Mosbech, Anders Landkildehus, Frank Jeppesen, Erik Davidson, Thomas A. Supplementary material from "Small birds, big effects: the little auk ( Alle alle ) transforms high Arctic ecosystems" |
topic_facet |
Environmental Science Ecology FOS Biological sciences |
description |
In some arctic areas, marine-derived nutrients (MDN) resulting from fish migrations fuel freshwater and terrestrial ecosystems, increasing primary production and biodiversity. Less is known, however, about the role of seabird-MDN in shaping ecosystems. Here, we examine how the most abundant seabird in the North Atlantic, the little auk ( Alle alle ), alters freshwater and terrestrial ecosystems around the North Water Polynya (NOW) in Greenland. We compare stable isotope ratios ( δ 15 N and δ 13 C) of freshwater and terrestrial biota, terrestrial vegetation indices and physical–chemical properties, productivity and community structure of fresh waters in catchments with and without little auk colonies. The presence of colonies profoundly alters freshwater and terrestrial ecosystems by providing nutrients and massively enhancing primary production. Based on elevated δ 15 N in MDN, we estimate that MDN fuels more than 85% of terrestrial and aquatic biomass in bird influenced systems. Furthermore, by using different proxies of bird impact (colony distance, algal δ 15 N) it is possible to identify a gradient in ecosystem response to increasing bird impact. Little auk impact acidifies the freshwater systems, reducing taxonomic richness of macroinvertebrates and truncating food webs. These results demonstrate that the little auk acts as an ecosystem engineer, transforming ecosystems across a vast region of Northwest Greenland. |
format |
Article in Journal/Newspaper |
author |
González-Bergonzoni, Ivan Johansen, Kasper L. Mosbech, Anders Landkildehus, Frank Jeppesen, Erik Davidson, Thomas A. |
author_facet |
González-Bergonzoni, Ivan Johansen, Kasper L. Mosbech, Anders Landkildehus, Frank Jeppesen, Erik Davidson, Thomas A. |
author_sort |
González-Bergonzoni, Ivan |
title |
Supplementary material from "Small birds, big effects: the little auk ( Alle alle ) transforms high Arctic ecosystems" |
title_short |
Supplementary material from "Small birds, big effects: the little auk ( Alle alle ) transforms high Arctic ecosystems" |
title_full |
Supplementary material from "Small birds, big effects: the little auk ( Alle alle ) transforms high Arctic ecosystems" |
title_fullStr |
Supplementary material from "Small birds, big effects: the little auk ( Alle alle ) transforms high Arctic ecosystems" |
title_full_unstemmed |
Supplementary material from "Small birds, big effects: the little auk ( Alle alle ) transforms high Arctic ecosystems" |
title_sort |
supplementary material from "small birds, big effects: the little auk ( alle alle ) transforms high arctic ecosystems" |
publisher |
Figshare |
publishDate |
2017 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.3683161 https://figshare.com/collections/Supplementary_material_from_Small_birds_big_effects_the_little_auk_i_Alle_alle_i_transforms_high_Arctic_ecosystems_/3683161 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Alle alle Arctic Greenland little auk North Atlantic |
genre_facet |
Alle alle Arctic Greenland little auk North Atlantic |
op_relation |
https://dx.doi.org/10.1098/rspb.2016.2572 |
op_rights |
CC BY https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.3683161 https://doi.org/10.1098/rspb.2016.2572 |
_version_ |
1766273135976382464 |