Testing for nematode-granulometry relationships

Testing for nematode-granulometry relationships

Author Fonseca, Gustavo Fernandes Camargo Autor UNIFESP Google Scholar
Maria, T. F. Google Scholar
Kandratavicius, N. Google Scholar
Venekey, V. Google Scholar
Gheller, P. F. Google Scholar
Gallucci, Fabiane Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Universidade de São Paulo (USP)
Univ Fed Estado Rio de Janeiro UNIRIO
Fac Ciencias Montevideo
Universidade Federal do Pará (UFPA)
Abstract The majority of studies have advocated that diversity of marine nematodes increases with increasing sediment grain size, although the opposite trend has also been suggested. the controversy is partially caused by not taking into account the effect of density on patterns of diversity and by analyzing datasets from different environments. the present study investigated nematode assemblages from sediments varying from very fine sand (mean grain size of 0.12 mm) to very coarse sand (1 mm) in shallow sublittoral marine environments. Contrary to previous studies, species richness was constant along the granulometric spectrum, despite significant changes in composition. the dominant genera were separated into five groups according to their optimum distribution and there was little overlap between these groups. Concepts from the niche theory explain to some extent the observed patterns. for instance, some of the coexisting genera were from different feeding types.
Keywords Free-living marine nematodes
Sediment
Shallow water
Species richness
Species range
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Grant number FAPESP: 2009/14019-0
FAPESP: 2009/11808-3
FAPESP: 2011/21289-3
Date 2014-09-01
Published in Marine Biodiversity. Heidelberg: Springer Heidelberg, v. 44, n. 3, p. 435-443, 2014.
ISSN 1867-1616 (Sherpa/Romeo, impact factor)
Publisher Springer
Extent 435-443
Origin http://dx.doi.org/10.1007/s12526-014-0241-4
Access rights Closed access
Type Article
Web of Science ID WOS:000342443800016
URI http://repositorio.unifesp.br/handle/11600/38146

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