β-Diversity and Species Accumulation in Antarctic Coastal Benthos: Influence of Habitat, Distance and Productivity on Ecological Connectivity
High Antarctic coastal marine environments are comparatively pristine with strong environmental gradients, which make them important places to investigate biodiversity relationships. Defining how different environmental features contribute to shifts in β-diversity is especially important as these sh...
Published in: | PLoS ONE |
---|---|
Main Authors: | , , , , |
Format: | Text |
Language: | English |
Published: |
Public Library of Science
2010
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2912761 http://www.ncbi.nlm.nih.gov/pubmed/20689578 https://doi.org/10.1371/journal.pone.0011899 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:2912761 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:2912761 2023-05-15T13:57:27+02:00 β-Diversity and Species Accumulation in Antarctic Coastal Benthos: Influence of Habitat, Distance and Productivity on Ecological Connectivity Thrush, Simon F. Hewitt, Judi E. Cummings, Vonda J. Norkko, Alf Chiantore, Mariachiara 2010-07-30 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2912761 http://www.ncbi.nlm.nih.gov/pubmed/20689578 https://doi.org/10.1371/journal.pone.0011899 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2912761 http://www.ncbi.nlm.nih.gov/pubmed/20689578 http://dx.doi.org/10.1371/journal.pone.0011899 Thrush et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2010 ftpubmed https://doi.org/10.1371/journal.pone.0011899 2013-09-03T03:11:08Z High Antarctic coastal marine environments are comparatively pristine with strong environmental gradients, which make them important places to investigate biodiversity relationships. Defining how different environmental features contribute to shifts in β-diversity is especially important as these shifts reflect both spatio-temporal variations in species richness and the degree of ecological separation between local and regional species pools. We used complementary techniques (species accumulation models, multivariate variance partitioning and generalized linear models) to assess how the roles of productivity, bio-physical habitat heterogeneity and connectivity change with spatial scales from metres to 100's of km. Our results demonstrated that the relative importance of specific processes influencing species accumulation and β–diversity changed with increasing spatial scale, and that patterns were never driven by only one factor. Bio-physical habitat heterogeneity had a strong influence on β-diversity at scales <290 km, while the effects of productivity were low and significant only at scales >40 km. Our analysis supports the emphasis on the analysis of diversity relationships across multiple spatial scales and highlights the unequal connectivity of individual sites to the regional species pool. This has important implications for resilience to habitat loss and community homogenisation, especially for Antarctic benthic communities where rates of recovery from disturbance are slow, there is a high ratio of poor-dispersing and brooding species, and high biogenic habitat heterogeneity and spatio-temporal variability in primary production make the system vulnerable to disturbance. Consequently, large areas need to be included within marine protected areas for effective management and conservation of these special ecosystems in the face of increasing anthropogenic disturbance. Text Antarc* Antarctic PubMed Central (PMC) Antarctic PLoS ONE 5 7 e11899 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Research Article |
spellingShingle |
Research Article Thrush, Simon F. Hewitt, Judi E. Cummings, Vonda J. Norkko, Alf Chiantore, Mariachiara β-Diversity and Species Accumulation in Antarctic Coastal Benthos: Influence of Habitat, Distance and Productivity on Ecological Connectivity |
topic_facet |
Research Article |
description |
High Antarctic coastal marine environments are comparatively pristine with strong environmental gradients, which make them important places to investigate biodiversity relationships. Defining how different environmental features contribute to shifts in β-diversity is especially important as these shifts reflect both spatio-temporal variations in species richness and the degree of ecological separation between local and regional species pools. We used complementary techniques (species accumulation models, multivariate variance partitioning and generalized linear models) to assess how the roles of productivity, bio-physical habitat heterogeneity and connectivity change with spatial scales from metres to 100's of km. Our results demonstrated that the relative importance of specific processes influencing species accumulation and β–diversity changed with increasing spatial scale, and that patterns were never driven by only one factor. Bio-physical habitat heterogeneity had a strong influence on β-diversity at scales <290 km, while the effects of productivity were low and significant only at scales >40 km. Our analysis supports the emphasis on the analysis of diversity relationships across multiple spatial scales and highlights the unequal connectivity of individual sites to the regional species pool. This has important implications for resilience to habitat loss and community homogenisation, especially for Antarctic benthic communities where rates of recovery from disturbance are slow, there is a high ratio of poor-dispersing and brooding species, and high biogenic habitat heterogeneity and spatio-temporal variability in primary production make the system vulnerable to disturbance. Consequently, large areas need to be included within marine protected areas for effective management and conservation of these special ecosystems in the face of increasing anthropogenic disturbance. |
format |
Text |
author |
Thrush, Simon F. Hewitt, Judi E. Cummings, Vonda J. Norkko, Alf Chiantore, Mariachiara |
author_facet |
Thrush, Simon F. Hewitt, Judi E. Cummings, Vonda J. Norkko, Alf Chiantore, Mariachiara |
author_sort |
Thrush, Simon F. |
title |
β-Diversity and Species Accumulation in Antarctic Coastal Benthos: Influence of Habitat, Distance and Productivity on Ecological Connectivity |
title_short |
β-Diversity and Species Accumulation in Antarctic Coastal Benthos: Influence of Habitat, Distance and Productivity on Ecological Connectivity |
title_full |
β-Diversity and Species Accumulation in Antarctic Coastal Benthos: Influence of Habitat, Distance and Productivity on Ecological Connectivity |
title_fullStr |
β-Diversity and Species Accumulation in Antarctic Coastal Benthos: Influence of Habitat, Distance and Productivity on Ecological Connectivity |
title_full_unstemmed |
β-Diversity and Species Accumulation in Antarctic Coastal Benthos: Influence of Habitat, Distance and Productivity on Ecological Connectivity |
title_sort |
β-diversity and species accumulation in antarctic coastal benthos: influence of habitat, distance and productivity on ecological connectivity |
publisher |
Public Library of Science |
publishDate |
2010 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2912761 http://www.ncbi.nlm.nih.gov/pubmed/20689578 https://doi.org/10.1371/journal.pone.0011899 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2912761 http://www.ncbi.nlm.nih.gov/pubmed/20689578 http://dx.doi.org/10.1371/journal.pone.0011899 |
op_rights |
Thrush et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0011899 |
container_title |
PLoS ONE |
container_volume |
5 |
container_issue |
7 |
container_start_page |
e11899 |
_version_ |
1766265124096573440 |