Linking Ross Sea Coastal Benthic Communities to Environmental Conditions: Documenting Baselines in a Spatially Variable and Changing World
Understanding the functionality of marine benthic ecosystems, and how they are influenced by their physical environment, is fundamental to realistically predicting effects of future environmental change. The Antarctic faces multiple environmental pressures associated with greenhouse gas emissions, e...
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Online Access: | https://doi.org/10.3389/fmars.2018.00232 https://doaj.org/article/2a6d7605505d4d34886b9a1ed267f576 |
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ftdoajarticles:oai:doaj.org/article:2a6d7605505d4d34886b9a1ed267f576 2023-05-15T13:32:27+02:00 Linking Ross Sea Coastal Benthic Communities to Environmental Conditions: Documenting Baselines in a Spatially Variable and Changing World Vonda J. Cummings Judi E. Hewitt Simon F. Thrush Peter M. Marriott N. Jane Halliday Alf Norkko 2018-07-01T00:00:00Z https://doi.org/10.3389/fmars.2018.00232 https://doaj.org/article/2a6d7605505d4d34886b9a1ed267f576 EN eng Frontiers Media S.A. https://www.frontiersin.org/article/10.3389/fmars.2018.00232/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2018.00232 https://doaj.org/article/2a6d7605505d4d34886b9a1ed267f576 Frontiers in Marine Science, Vol 5 (2018) Antarctica benthos coast environmental change multi-scale observations functional traits Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2018 ftdoajarticles https://doi.org/10.3389/fmars.2018.00232 2022-12-31T07:04:03Z Understanding the functionality of marine benthic ecosystems, and how they are influenced by their physical environment, is fundamental to realistically predicting effects of future environmental change. The Antarctic faces multiple environmental pressures associated with greenhouse gas emissions, emphasizing the need for baseline information on biodiversity and the bio-physical processes that influence biodiversity. We describe a survey of shallow water benthic communities at eight Ross Sea locations with a range of environmental characteristics. Our analyses link coastal benthic community composition to seafloor habitat and sedimentary parameters and broader scale features, at locations encompassing considerable spatial extent and variation in environmental characteristics (e.g., seafloor habitat, sea ice conditions, hydrodynamic regime, light). Our aims were to: (i) document existing benthic communities, habitats and environmental conditions against which to assess future change, (ii) investigate the relationships between environmental and habitat characteristics and benthic community structure and function, and (iii) determine whether these relationships were dependent on spatial extent. A very high percentage (>95%) of the between-location variability in macro- or epifaunal community composition was explainable using multi-scale environmental variables. The explanatory power varied depending on the scale of influence of the environmental variables measured (fine and medium-scale habitat, broad scale), and with community type. However, the inclusion of parameters at all scales produced the most powerful model for both communities. Ice duration, ice thickness and snow cover were important broad scale variables identified that directly relate to climate change. Even when using only habitat-scale variables, extending the spatial scale of the study from three locations covering 32 km to eight locations covering ~340 km increased the degree of explanatory power from 18–32 to 64–78%. The increase in explanatory ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Ross Sea Sea ice Directory of Open Access Journals: DOAJ Articles Antarctic Ross Sea The Antarctic Frontiers in Marine Science 5 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Antarctica benthos coast environmental change multi-scale observations functional traits Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
Antarctica benthos coast environmental change multi-scale observations functional traits Science Q General. Including nature conservation geographical distribution QH1-199.5 Vonda J. Cummings Judi E. Hewitt Simon F. Thrush Peter M. Marriott N. Jane Halliday Alf Norkko Linking Ross Sea Coastal Benthic Communities to Environmental Conditions: Documenting Baselines in a Spatially Variable and Changing World |
topic_facet |
Antarctica benthos coast environmental change multi-scale observations functional traits Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Understanding the functionality of marine benthic ecosystems, and how they are influenced by their physical environment, is fundamental to realistically predicting effects of future environmental change. The Antarctic faces multiple environmental pressures associated with greenhouse gas emissions, emphasizing the need for baseline information on biodiversity and the bio-physical processes that influence biodiversity. We describe a survey of shallow water benthic communities at eight Ross Sea locations with a range of environmental characteristics. Our analyses link coastal benthic community composition to seafloor habitat and sedimentary parameters and broader scale features, at locations encompassing considerable spatial extent and variation in environmental characteristics (e.g., seafloor habitat, sea ice conditions, hydrodynamic regime, light). Our aims were to: (i) document existing benthic communities, habitats and environmental conditions against which to assess future change, (ii) investigate the relationships between environmental and habitat characteristics and benthic community structure and function, and (iii) determine whether these relationships were dependent on spatial extent. A very high percentage (>95%) of the between-location variability in macro- or epifaunal community composition was explainable using multi-scale environmental variables. The explanatory power varied depending on the scale of influence of the environmental variables measured (fine and medium-scale habitat, broad scale), and with community type. However, the inclusion of parameters at all scales produced the most powerful model for both communities. Ice duration, ice thickness and snow cover were important broad scale variables identified that directly relate to climate change. Even when using only habitat-scale variables, extending the spatial scale of the study from three locations covering 32 km to eight locations covering ~340 km increased the degree of explanatory power from 18–32 to 64–78%. The increase in explanatory ... |
format |
Article in Journal/Newspaper |
author |
Vonda J. Cummings Judi E. Hewitt Simon F. Thrush Peter M. Marriott N. Jane Halliday Alf Norkko |
author_facet |
Vonda J. Cummings Judi E. Hewitt Simon F. Thrush Peter M. Marriott N. Jane Halliday Alf Norkko |
author_sort |
Vonda J. Cummings |
title |
Linking Ross Sea Coastal Benthic Communities to Environmental Conditions: Documenting Baselines in a Spatially Variable and Changing World |
title_short |
Linking Ross Sea Coastal Benthic Communities to Environmental Conditions: Documenting Baselines in a Spatially Variable and Changing World |
title_full |
Linking Ross Sea Coastal Benthic Communities to Environmental Conditions: Documenting Baselines in a Spatially Variable and Changing World |
title_fullStr |
Linking Ross Sea Coastal Benthic Communities to Environmental Conditions: Documenting Baselines in a Spatially Variable and Changing World |
title_full_unstemmed |
Linking Ross Sea Coastal Benthic Communities to Environmental Conditions: Documenting Baselines in a Spatially Variable and Changing World |
title_sort |
linking ross sea coastal benthic communities to environmental conditions: documenting baselines in a spatially variable and changing world |
publisher |
Frontiers Media S.A. |
publishDate |
2018 |
url |
https://doi.org/10.3389/fmars.2018.00232 https://doaj.org/article/2a6d7605505d4d34886b9a1ed267f576 |
geographic |
Antarctic Ross Sea The Antarctic |
geographic_facet |
Antarctic Ross Sea The Antarctic |
genre |
Antarc* Antarctic Antarctica Ross Sea Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Ross Sea Sea ice |
op_source |
Frontiers in Marine Science, Vol 5 (2018) |
op_relation |
https://www.frontiersin.org/article/10.3389/fmars.2018.00232/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2018.00232 https://doaj.org/article/2a6d7605505d4d34886b9a1ed267f576 |
op_doi |
https://doi.org/10.3389/fmars.2018.00232 |
container_title |
Frontiers in Marine Science |
container_volume |
5 |
_version_ |
1766027205925666816 |