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...

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Autores principales:	Dorota L Porazinska, Robin M Giblin-Davis, Thomas O Powers, W Kelley Thomas
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5cf53a78c678447d9d7fdc3b957187f9
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spelling	oai:doaj.org-article:5cf53a78c678447d9d7fdc3b957187f92021-11-18T07:06:01ZNematode spatial and ecological patterns from tropical and temperate rainforests.1932-620310.1371/journal.pone.0044641https://doaj.org/article/5cf53a78c678447d9d7fdc3b957187f92012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22984536/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Large 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.Dorota L PorazinskaRobin M Giblin-DavisThomas O PowersW Kelley ThomasPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 9, p e44641 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dorota L Porazinska Robin M Giblin-Davis Thomas O Powers W Kelley Thomas Nematode spatial and ecological patterns from tropical and temperate rainforests.
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	article
author	Dorota L Porazinska Robin M Giblin-Davis Thomas O Powers W Kelley Thomas
author_facet	Dorota L Porazinska Robin M Giblin-Davis Thomas O Powers W Kelley Thomas
author_sort	Dorota L Porazinska
title	Nematode spatial and ecological patterns from tropical and temperate rainforests.
title_short	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_sort	nematode spatial and ecological patterns from tropical and temperate rainforests.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/5cf53a78c678447d9d7fdc3b957187f9
work_keys_str_mv	AT dorotalporazinska nematodespatialandecologicalpatternsfromtropicalandtemperaterainforests AT robinmgiblindavis nematodespatialandecologicalpatternsfromtropicalandtemperaterainforests AT thomasopowers nematodespatialandecologicalpatternsfromtropicalandtemperaterainforests AT wkelleythomas nematodespatialandecologicalpatternsfromtropicalandtemperaterainforests
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Nematode spatial and ecological patterns from tropical and temperate rainforests.

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