Data from: North Atlantic Gateway: test bed of deep-sea macroecological patterns
Aim: The deep waters around Iceland, known as the North Atlantic Gateway, constitute an ideal location to investigate deep-sea ecological hypotheses. Using ostracods, we constructed a comprehensive deep-sea macroecological dataset of the North Atlantic Gateway region and investigated the controlling...
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ftdryad:oai:v1.datadryad.org:10255/dryad.216437 2023-05-15T16:00:42+02:00 Data from: North Atlantic Gateway: test bed of deep-sea macroecological patterns Jöst, Anna Yasuhara, Moriaki Wei, Chih-Lin Okahashi, Hisayo Ostmann, Alexandra Arbízu Martinez, Pedro Mamo, Briony Svavarsson, Jörundur Brix, Saskia Icelandic waters Sub-polar North Atlantic Ocean Nordic Seas Icelandic Basin Irminger Basin Denmark Strait Norwegian Sea Holocene 2019-06-10T17:29:11Z http://hdl.handle.net/10255/dryad.216437 https://doi.org/10.5061/dryad.821j0b0 unknown doi:10.5061/dryad.821j0b0/1 doi:10.5061/dryad.821j0b0/2 doi:10.1111/jbi.13632 doi:10.5061/dryad.821j0b0 Jöst A, Yasuhara M, Wei C, Okahashi H, Ostmann A, Arbízu Martinez P, Mamo B, Svavarsson J, Brix S (2019) North Atlantic Gateway: test bed of deep-sea macroecological patterns. Journal of Biogeography. http://hdl.handle.net/10255/dryad.216437 beta diversity depth diversity gradient latitudinal diversity gradient meiofauna bathymetric barrier Article 2019 ftdryad https://doi.org/10.5061/dryad.821j0b0 https://doi.org/10.5061/dryad.821j0b0/1 https://doi.org/10.5061/dryad.821j0b0/2 https://doi.org/10.1111/jbi.13632 2020-01-01T16:28:33Z Aim: The deep waters around Iceland, known as the North Atlantic Gateway, constitute an ideal location to investigate deep-sea ecological hypotheses. Using ostracods, we constructed a comprehensive deep-sea macroecological dataset of the North Atlantic Gateway region and investigated the controlling factors of large-scale, deep-sea species diversity patterns. Location: Sub-polar North Atlantic Ocean Time period: Modern Major taxa studied: Ostracoda (Crustacea) Methods: We investigated deep-sea biodiversity patterns and applied ecological modeling (multiple regression and model averaging) to test whether these patterns are governed by environmental factors such as temperature, surface primary productivity, and seasonality. Beta diversity analyses were applied to evaluate the effect of a geographical barrier (Greenland-Iceland-Faeroe Ridge) on deep-sea benthic faunal distributions. Results: We constructed a deep-sea macroecological dataset with 32 stations, 5676 specimens, and 122 species. We confirmed a linear latitudinal diversity gradient with higher diversity in the North Atlantic proper than in the Nordic Seas. We report a unimodal depth diversity gradient south of the ridge, but a linear diversity-decline with depth north of the ridge. The turnover component of beta diversity increased toward the ridge. Main conclusions: We found both temperature and surface primary production are important for deep-sea biodiversity. For the first time, we report a significant diversity-temperature relationship in both macroecological (spatial; this study) and existing paleoecological (time-series) data for the same taxa. In addition to temperature and surface primary production, bathymetric features such as a shallow ridge acting as a barrier, are an important factor for deep-sea biodiversity distribution. The low diversity of the Nordic Seas is likely due to a combination of low temperatures and bathymetric barriers. These results substantially expand our understanding of the well-known yet poorly understood Greenland-Iceland-Faeroe Ridge faunal transition with possible insight to its cause. Article in Journal/Newspaper Denmark Strait Greenland Iceland Nordic Seas North Atlantic Norwegian Sea Dryad Digital Repository (Duke University) Norwegian Sea Greenland Irminger Basin ENVELOPE(-36.000,-36.000,61.000,61.000) |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
beta diversity depth diversity gradient latitudinal diversity gradient meiofauna bathymetric barrier |
spellingShingle |
beta diversity depth diversity gradient latitudinal diversity gradient meiofauna bathymetric barrier Jöst, Anna Yasuhara, Moriaki Wei, Chih-Lin Okahashi, Hisayo Ostmann, Alexandra Arbízu Martinez, Pedro Mamo, Briony Svavarsson, Jörundur Brix, Saskia Data from: North Atlantic Gateway: test bed of deep-sea macroecological patterns |
topic_facet |
beta diversity depth diversity gradient latitudinal diversity gradient meiofauna bathymetric barrier |
description |
Aim: The deep waters around Iceland, known as the North Atlantic Gateway, constitute an ideal location to investigate deep-sea ecological hypotheses. Using ostracods, we constructed a comprehensive deep-sea macroecological dataset of the North Atlantic Gateway region and investigated the controlling factors of large-scale, deep-sea species diversity patterns. Location: Sub-polar North Atlantic Ocean Time period: Modern Major taxa studied: Ostracoda (Crustacea) Methods: We investigated deep-sea biodiversity patterns and applied ecological modeling (multiple regression and model averaging) to test whether these patterns are governed by environmental factors such as temperature, surface primary productivity, and seasonality. Beta diversity analyses were applied to evaluate the effect of a geographical barrier (Greenland-Iceland-Faeroe Ridge) on deep-sea benthic faunal distributions. Results: We constructed a deep-sea macroecological dataset with 32 stations, 5676 specimens, and 122 species. We confirmed a linear latitudinal diversity gradient with higher diversity in the North Atlantic proper than in the Nordic Seas. We report a unimodal depth diversity gradient south of the ridge, but a linear diversity-decline with depth north of the ridge. The turnover component of beta diversity increased toward the ridge. Main conclusions: We found both temperature and surface primary production are important for deep-sea biodiversity. For the first time, we report a significant diversity-temperature relationship in both macroecological (spatial; this study) and existing paleoecological (time-series) data for the same taxa. In addition to temperature and surface primary production, bathymetric features such as a shallow ridge acting as a barrier, are an important factor for deep-sea biodiversity distribution. The low diversity of the Nordic Seas is likely due to a combination of low temperatures and bathymetric barriers. These results substantially expand our understanding of the well-known yet poorly understood Greenland-Iceland-Faeroe Ridge faunal transition with possible insight to its cause. |
format |
Article in Journal/Newspaper |
author |
Jöst, Anna Yasuhara, Moriaki Wei, Chih-Lin Okahashi, Hisayo Ostmann, Alexandra Arbízu Martinez, Pedro Mamo, Briony Svavarsson, Jörundur Brix, Saskia |
author_facet |
Jöst, Anna Yasuhara, Moriaki Wei, Chih-Lin Okahashi, Hisayo Ostmann, Alexandra Arbízu Martinez, Pedro Mamo, Briony Svavarsson, Jörundur Brix, Saskia |
author_sort |
Jöst, Anna |
title |
Data from: North Atlantic Gateway: test bed of deep-sea macroecological patterns |
title_short |
Data from: North Atlantic Gateway: test bed of deep-sea macroecological patterns |
title_full |
Data from: North Atlantic Gateway: test bed of deep-sea macroecological patterns |
title_fullStr |
Data from: North Atlantic Gateway: test bed of deep-sea macroecological patterns |
title_full_unstemmed |
Data from: North Atlantic Gateway: test bed of deep-sea macroecological patterns |
title_sort |
data from: north atlantic gateway: test bed of deep-sea macroecological patterns |
publishDate |
2019 |
url |
http://hdl.handle.net/10255/dryad.216437 https://doi.org/10.5061/dryad.821j0b0 |
op_coverage |
Icelandic waters Sub-polar North Atlantic Ocean Nordic Seas Icelandic Basin Irminger Basin Denmark Strait Norwegian Sea Holocene |
long_lat |
ENVELOPE(-36.000,-36.000,61.000,61.000) |
geographic |
Norwegian Sea Greenland Irminger Basin |
geographic_facet |
Norwegian Sea Greenland Irminger Basin |
genre |
Denmark Strait Greenland Iceland Nordic Seas North Atlantic Norwegian Sea |
genre_facet |
Denmark Strait Greenland Iceland Nordic Seas North Atlantic Norwegian Sea |
op_relation |
doi:10.5061/dryad.821j0b0/1 doi:10.5061/dryad.821j0b0/2 doi:10.1111/jbi.13632 doi:10.5061/dryad.821j0b0 Jöst A, Yasuhara M, Wei C, Okahashi H, Ostmann A, Arbízu Martinez P, Mamo B, Svavarsson J, Brix S (2019) North Atlantic Gateway: test bed of deep-sea macroecological patterns. Journal of Biogeography. http://hdl.handle.net/10255/dryad.216437 |
op_doi |
https://doi.org/10.5061/dryad.821j0b0 https://doi.org/10.5061/dryad.821j0b0/1 https://doi.org/10.5061/dryad.821j0b0/2 https://doi.org/10.1111/jbi.13632 |
_version_ |
1766396709199413248 |