Benthic communities and their drivers: A spatial analysis off the Antarctic Peninsula
Multiple environmental factors control benthic community patterns, and their relative importance varies with spatial scale. Since this variation is difficult to evaluate quantitatively, extensive sampling across a broad range of spatial scales is required. Here, we present a first case study on Sout...
Published in: | Limnology and Oceanography |
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AMER SOC LIMNOLOGY OCEANOGRAPHY
2019
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Online Access: | https://epic.awi.de/id/eprint/49647/ https://epic.awi.de/id/eprint/49647/1/2019_Gutt_et_al.pdf https://hdl.handle.net/10013/epic.9aaa8913-2936-41f6-bd66-6963b0b41fe6 https://hdl.handle.net/ |
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ftawi:oai:epic.awi.de:49647 2023-05-15T13:45:21+02:00 Benthic communities and their drivers: A spatial analysis off the Antarctic Peninsula Gutt, Julian Arndt, Janina Kraan, Casper Dorschel, Boris Schröder, Michael Bracher, Astrid Piepenburg, Dieter 2019 application/pdf https://epic.awi.de/id/eprint/49647/ https://epic.awi.de/id/eprint/49647/1/2019_Gutt_et_al.pdf https://hdl.handle.net/10013/epic.9aaa8913-2936-41f6-bd66-6963b0b41fe6 https://hdl.handle.net/ unknown AMER SOC LIMNOLOGY OCEANOGRAPHY https://epic.awi.de/id/eprint/49647/1/2019_Gutt_et_al.pdf https://hdl.handle.net/ Gutt, J. , Arndt, J. , Kraan, C. orcid:0000-0003-2062-6222 , Dorschel, B. orcid:0000-0002-3495-5927 , Schröder, M. , Bracher, A. orcid:0000-0003-3025-5517 and Piepenburg, D. orcid:0000-0003-3977-2860 (2019) Benthic communities and their drivers: A spatial analysis off the Antarctic Peninsula , Limnology and Oceanography, 64 , pp. 2341-2357 . doi:10.1002/lno.11187 <https://doi.org/10.1002/lno.11187> , hdl:10013/epic.9aaa8913-2936-41f6-bd66-6963b0b41fe6 EPIC3Limnology and Oceanography, AMER SOC LIMNOLOGY OCEANOGRAPHY, 64, pp. 2341-2357, ISSN: 0024-3590 Article isiRev 2019 ftawi https://doi.org/10.1002/lno.11187 2021-12-24T15:44:42Z Multiple environmental factors control benthic community patterns, and their relative importance varies with spatial scale. Since this variation is difficult to evaluate quantitatively, extensive sampling across a broad range of spatial scales is required. Here, we present a first case study on Southern Ocean shelf benthos, in which mega-epibenthic communities and biota-environment relationships have been explored at multiple spatial scales. The analyses encompassed 20 seafloor, water-column, and sea-ice parameters, as well as abundances of 18 mega-epibenthic taxa in a total of 2799 high-resolution seabed images taken at 28 stations at 32–786 m depth off the northern Antarctic Peninsula. Based on a priori nesting of sampling stations into ecoregions, subregions, and habitats, analyses indicated most pronounced patchiness levels at finest (within transects among adjacent seabed photos) and largest (among ecoregions) spatial scale considered. Using an alternative approach, explicitly involving the spatial distances between the geo-referenced data, Moran’s Eigenvector mapping (MEM) classified the continuum of spatial scales into four categories: broad (> 60 km), meso (10–60 km), small (2–10 km), and fine (< 2 km). MEM analyses generally indicated an increase in mega-epibenthic community complexity with increasing spatial scale. Moreover, strong relationships between biota and environmental drivers were found at scales of > 2 km. In contrast, few environmental variables contributed to explaining biotic structures at finer scales. These are likely rather determined by nonmeasured environmental variables, as well as biological traits and interactions that are assumed to be most effective at small spatial scales. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Sea ice Southern Ocean Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Antarctic Peninsula Southern Ocean The Antarctic Limnology and Oceanography 64 6 2341 2357 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Multiple environmental factors control benthic community patterns, and their relative importance varies with spatial scale. Since this variation is difficult to evaluate quantitatively, extensive sampling across a broad range of spatial scales is required. Here, we present a first case study on Southern Ocean shelf benthos, in which mega-epibenthic communities and biota-environment relationships have been explored at multiple spatial scales. The analyses encompassed 20 seafloor, water-column, and sea-ice parameters, as well as abundances of 18 mega-epibenthic taxa in a total of 2799 high-resolution seabed images taken at 28 stations at 32–786 m depth off the northern Antarctic Peninsula. Based on a priori nesting of sampling stations into ecoregions, subregions, and habitats, analyses indicated most pronounced patchiness levels at finest (within transects among adjacent seabed photos) and largest (among ecoregions) spatial scale considered. Using an alternative approach, explicitly involving the spatial distances between the geo-referenced data, Moran’s Eigenvector mapping (MEM) classified the continuum of spatial scales into four categories: broad (> 60 km), meso (10–60 km), small (2–10 km), and fine (< 2 km). MEM analyses generally indicated an increase in mega-epibenthic community complexity with increasing spatial scale. Moreover, strong relationships between biota and environmental drivers were found at scales of > 2 km. In contrast, few environmental variables contributed to explaining biotic structures at finer scales. These are likely rather determined by nonmeasured environmental variables, as well as biological traits and interactions that are assumed to be most effective at small spatial scales. |
format |
Article in Journal/Newspaper |
author |
Gutt, Julian Arndt, Janina Kraan, Casper Dorschel, Boris Schröder, Michael Bracher, Astrid Piepenburg, Dieter |
spellingShingle |
Gutt, Julian Arndt, Janina Kraan, Casper Dorschel, Boris Schröder, Michael Bracher, Astrid Piepenburg, Dieter Benthic communities and their drivers: A spatial analysis off the Antarctic Peninsula |
author_facet |
Gutt, Julian Arndt, Janina Kraan, Casper Dorschel, Boris Schröder, Michael Bracher, Astrid Piepenburg, Dieter |
author_sort |
Gutt, Julian |
title |
Benthic communities and their drivers: A spatial analysis off the Antarctic Peninsula |
title_short |
Benthic communities and their drivers: A spatial analysis off the Antarctic Peninsula |
title_full |
Benthic communities and their drivers: A spatial analysis off the Antarctic Peninsula |
title_fullStr |
Benthic communities and their drivers: A spatial analysis off the Antarctic Peninsula |
title_full_unstemmed |
Benthic communities and their drivers: A spatial analysis off the Antarctic Peninsula |
title_sort |
benthic communities and their drivers: a spatial analysis off the antarctic peninsula |
publisher |
AMER SOC LIMNOLOGY OCEANOGRAPHY |
publishDate |
2019 |
url |
https://epic.awi.de/id/eprint/49647/ https://epic.awi.de/id/eprint/49647/1/2019_Gutt_et_al.pdf https://hdl.handle.net/10013/epic.9aaa8913-2936-41f6-bd66-6963b0b41fe6 https://hdl.handle.net/ |
geographic |
Antarctic Antarctic Peninsula Southern Ocean The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Sea ice Southern Ocean |
op_source |
EPIC3Limnology and Oceanography, AMER SOC LIMNOLOGY OCEANOGRAPHY, 64, pp. 2341-2357, ISSN: 0024-3590 |
op_relation |
https://epic.awi.de/id/eprint/49647/1/2019_Gutt_et_al.pdf https://hdl.handle.net/ Gutt, J. , Arndt, J. , Kraan, C. orcid:0000-0003-2062-6222 , Dorschel, B. orcid:0000-0002-3495-5927 , Schröder, M. , Bracher, A. orcid:0000-0003-3025-5517 and Piepenburg, D. orcid:0000-0003-3977-2860 (2019) Benthic communities and their drivers: A spatial analysis off the Antarctic Peninsula , Limnology and Oceanography, 64 , pp. 2341-2357 . doi:10.1002/lno.11187 <https://doi.org/10.1002/lno.11187> , hdl:10013/epic.9aaa8913-2936-41f6-bd66-6963b0b41fe6 |
op_doi |
https://doi.org/10.1002/lno.11187 |
container_title |
Limnology and Oceanography |
container_volume |
64 |
container_issue |
6 |
container_start_page |
2341 |
op_container_end_page |
2357 |
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1766221632365395968 |