Small-Scale Heterogeneity in Deep-Sea Nematode Communities around Biogenic Structures
The unexpected high species richness of deep-sea sediments gives rise to the questions, which processes produce and maintain diversity in the deep sea, and at what spatial scales do these processes operate? The idea of a small-scale habitat structure at the deep-sea floor provides the background for...
Published in: | PLoS ONE |
---|---|
Main Authors: | , |
Format: | Text |
Language: | English |
Published: |
Public Library of Science
2011
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3247241 http://www.ncbi.nlm.nih.gov/pubmed/22216193 https://doi.org/10.1371/journal.pone.0029152 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:3247241 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:3247241 2023-05-15T15:12:22+02:00 Small-Scale Heterogeneity in Deep-Sea Nematode Communities around Biogenic Structures Hasemann, Christiane Soltwedel, Thomas 2011-12-28 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3247241 http://www.ncbi.nlm.nih.gov/pubmed/22216193 https://doi.org/10.1371/journal.pone.0029152 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3247241 http://www.ncbi.nlm.nih.gov/pubmed/22216193 http://dx.doi.org/10.1371/journal.pone.0029152 Hasemann, Soltwedel. 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 2011 ftpubmed https://doi.org/10.1371/journal.pone.0029152 2013-09-04T00:31:40Z The unexpected high species richness of deep-sea sediments gives rise to the questions, which processes produce and maintain diversity in the deep sea, and at what spatial scales do these processes operate? The idea of a small-scale habitat structure at the deep-sea floor provides the background for this study. At small scales biogenic structures create a heterogeneous environment that influences the structure of the surrounding communities and the dynamics of the meiobenthic populations. As an example for biogenic structures, small deep-sea sponges (Tentorium semisuberites Schmidt 1870) and their sedimentary environment were investigated for small-scale distribution patterns of benthic deep-sea nematodes. Sampling was carried out with the remotely operated vehicle Victor 6000 at the Arctic deep-sea observatory HAUSGARTEN. In order to investigate nematode community patterns sediment cores around three small sponges and corresponding control cores were analysed. A total of approx. 5800 nematodes were identified. The comparison of the nematode communities from sponge and control samples indicated an influence of the biogenic structure “sponge” on diversity patterns and habitat heterogeneity. The increased number of nematode species and functional groups found in the sediments around the sponges suggest that on a small scale the sponge acts as a gradient and creates a more divers habitat structure. The nematode community from the sponge sediments shows a greater taxonomic variance and species richness together with lower relative abundances of the species compared to those from control sediments. Obviously, the more homogeneous habitat conditions of the control sediments offer less micro-habitats than the sediments around the sponges. This seems to reduce the number of functional groups and species coexisting in the control sediments. Text Arctic PubMed Central (PMC) Arctic PLoS ONE 6 12 e29152 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Research Article |
spellingShingle |
Research Article Hasemann, Christiane Soltwedel, Thomas Small-Scale Heterogeneity in Deep-Sea Nematode Communities around Biogenic Structures |
topic_facet |
Research Article |
description |
The unexpected high species richness of deep-sea sediments gives rise to the questions, which processes produce and maintain diversity in the deep sea, and at what spatial scales do these processes operate? The idea of a small-scale habitat structure at the deep-sea floor provides the background for this study. At small scales biogenic structures create a heterogeneous environment that influences the structure of the surrounding communities and the dynamics of the meiobenthic populations. As an example for biogenic structures, small deep-sea sponges (Tentorium semisuberites Schmidt 1870) and their sedimentary environment were investigated for small-scale distribution patterns of benthic deep-sea nematodes. Sampling was carried out with the remotely operated vehicle Victor 6000 at the Arctic deep-sea observatory HAUSGARTEN. In order to investigate nematode community patterns sediment cores around three small sponges and corresponding control cores were analysed. A total of approx. 5800 nematodes were identified. The comparison of the nematode communities from sponge and control samples indicated an influence of the biogenic structure “sponge” on diversity patterns and habitat heterogeneity. The increased number of nematode species and functional groups found in the sediments around the sponges suggest that on a small scale the sponge acts as a gradient and creates a more divers habitat structure. The nematode community from the sponge sediments shows a greater taxonomic variance and species richness together with lower relative abundances of the species compared to those from control sediments. Obviously, the more homogeneous habitat conditions of the control sediments offer less micro-habitats than the sediments around the sponges. This seems to reduce the number of functional groups and species coexisting in the control sediments. |
format |
Text |
author |
Hasemann, Christiane Soltwedel, Thomas |
author_facet |
Hasemann, Christiane Soltwedel, Thomas |
author_sort |
Hasemann, Christiane |
title |
Small-Scale Heterogeneity in Deep-Sea Nematode Communities around Biogenic Structures |
title_short |
Small-Scale Heterogeneity in Deep-Sea Nematode Communities around Biogenic Structures |
title_full |
Small-Scale Heterogeneity in Deep-Sea Nematode Communities around Biogenic Structures |
title_fullStr |
Small-Scale Heterogeneity in Deep-Sea Nematode Communities around Biogenic Structures |
title_full_unstemmed |
Small-Scale Heterogeneity in Deep-Sea Nematode Communities around Biogenic Structures |
title_sort |
small-scale heterogeneity in deep-sea nematode communities around biogenic structures |
publisher |
Public Library of Science |
publishDate |
2011 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3247241 http://www.ncbi.nlm.nih.gov/pubmed/22216193 https://doi.org/10.1371/journal.pone.0029152 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3247241 http://www.ncbi.nlm.nih.gov/pubmed/22216193 http://dx.doi.org/10.1371/journal.pone.0029152 |
op_rights |
Hasemann, Soltwedel. 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.0029152 |
container_title |
PLoS ONE |
container_volume |
6 |
container_issue |
12 |
container_start_page |
e29152 |
_version_ |
1766343069469245440 |