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Nematode Spatial and Ecological Patterns from Tropical and Temperate Rainforests
Large scale diversity patterns are well established for terrestrial macrobiota (e.g. plants and vertebrates), but not for microscopic organisms (e.g. nematodes). Due to small size, high abundance, and extensive dispersal, microbiota are assumed to exhibit cosmopolitan distributions with no biogeogra...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3439412/ https://www.ncbi.nlm.nih.gov/pubmed/22984536 http://dx.doi.org/10.1371/journal.pone.0044641 |
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author | Porazinska, Dorota L. Giblin-Davis, Robin M. Powers, Thomas O. Thomas, W. Kelley |
author_facet | Porazinska, Dorota L. Giblin-Davis, Robin M. Powers, Thomas O. Thomas, W. Kelley |
author_sort | Porazinska, Dorota L. |
collection | PubMed |
description | Large scale diversity patterns are well established for terrestrial macrobiota (e.g. plants and vertebrates), but not for microscopic organisms (e.g. nematodes). Due to small size, high abundance, and extensive dispersal, microbiota are assumed to exhibit cosmopolitan distributions with no biogeographical patterns. This assumption has been extrapolated from local spatial scale studies of a few taxonomic groups utilizing morphological approaches. Recent molecularly-based studies, however, suggest something quite opposite. Nematodes are the most abundant metazoans on earth, but their diversity patterns are largely unknown. We conducted a survey of nematode diversity within three vertical strata (soil, litter, and canopy) of rainforests at two contrasting latitudes in the North American meridian (temperate: the Olympic National Forest, WA, U.S.A and tropical: La Selva Biological Station, Costa Rica) using standardized sampling designs and sample processing protocols. To describe nematode diversity, we applied an ecometagenetic approach using 454 pyrosequencing. We observed that: 1) nematode communities were unique without even a single common species between the two rainforests, 2) nematode communities were unique among habitats in both rainforests, 3) total species richness was 300% more in the tropical than in the temperate rainforest, 4) 80% of the species in the temperate rainforest resided in the soil, whereas only 20% in the tropics, 5) more than 90% of identified species were novel. Overall, our data provided no support for cosmopolitanism at both local (habitats) and large (rainforests) spatial scales. In addition, our data indicated that biogeographical patterns typical of macrobiota also exist for microbiota. |
format | Online Article Text |
id | pubmed-3439412 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-34394122012-09-14 Nematode Spatial and Ecological Patterns from Tropical and Temperate Rainforests Porazinska, Dorota L. Giblin-Davis, Robin M. Powers, Thomas O. Thomas, W. Kelley PLoS One Research Article Large scale diversity patterns are well established for terrestrial macrobiota (e.g. plants and vertebrates), but not for microscopic organisms (e.g. nematodes). Due to small size, high abundance, and extensive dispersal, microbiota are assumed to exhibit cosmopolitan distributions with no biogeographical patterns. This assumption has been extrapolated from local spatial scale studies of a few taxonomic groups utilizing morphological approaches. Recent molecularly-based studies, however, suggest something quite opposite. Nematodes are the most abundant metazoans on earth, but their diversity patterns are largely unknown. We conducted a survey of nematode diversity within three vertical strata (soil, litter, and canopy) of rainforests at two contrasting latitudes in the North American meridian (temperate: the Olympic National Forest, WA, U.S.A and tropical: La Selva Biological Station, Costa Rica) using standardized sampling designs and sample processing protocols. To describe nematode diversity, we applied an ecometagenetic approach using 454 pyrosequencing. We observed that: 1) nematode communities were unique without even a single common species between the two rainforests, 2) nematode communities were unique among habitats in both rainforests, 3) total species richness was 300% more in the tropical than in the temperate rainforest, 4) 80% of the species in the temperate rainforest resided in the soil, whereas only 20% in the tropics, 5) more than 90% of identified species were novel. Overall, our data provided no support for cosmopolitanism at both local (habitats) and large (rainforests) spatial scales. In addition, our data indicated that biogeographical patterns typical of macrobiota also exist for microbiota. Public Library of Science 2012-09-11 /pmc/articles/PMC3439412/ /pubmed/22984536 http://dx.doi.org/10.1371/journal.pone.0044641 Text en © 2012 Porazinska et al http://creativecommons.org/licenses/by/4.0/ 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 properly credited. |
spellingShingle | Research Article Porazinska, Dorota L. Giblin-Davis, Robin M. Powers, Thomas O. Thomas, W. Kelley Nematode Spatial and Ecological Patterns from Tropical and Temperate Rainforests |
title | Nematode Spatial and Ecological Patterns from Tropical and Temperate Rainforests |
title_full | Nematode Spatial and Ecological Patterns from Tropical and Temperate Rainforests |
title_fullStr | Nematode Spatial and Ecological Patterns from Tropical and Temperate Rainforests |
title_full_unstemmed | Nematode Spatial and Ecological Patterns from Tropical and Temperate Rainforests |
title_short | Nematode Spatial and Ecological Patterns from Tropical and Temperate Rainforests |
title_sort | nematode spatial and ecological patterns from tropical and temperate rainforests |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3439412/ https://www.ncbi.nlm.nih.gov/pubmed/22984536 http://dx.doi.org/10.1371/journal.pone.0044641 |
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