| Texto completo | |
| Autor(es): |
Fonseca, G.
[1, 2]
;
Maria, T. F.
[3]
;
Kandratavicius, N.
[4]
;
Venekey, V.
[5]
;
Gheller, P. F.
[6]
;
Gallucci, F.
[1, 2]
Número total de Autores: 6
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Ctr Biol Marinha, BR-11600000 Sao Sebastiao - Brazil
[2] Univ Fed Sao Paulo, Inst Mar, BR-11030400 Santos - Brazil
[3] Univ Fed Estado Rio de Janeiro UNIRIO, Dept Ecol & Recursos Marinhos, BR-22290240 Rio De Janeiro, RJ - Brazil
[4] Fac Ciencias Montevideo, Lab Oceanog & Ecol Marina, Montevideo - Uruguay
[5] Univ Fed Para UFPA, Inst Ciencias Biol, BR-66075110 Belem, Para - Brazil
[6] Univ Sao Paulo, Inst Oceanog, BR-05508120 Sao Paulo - Brazil
Número total de Afiliações: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MARINE BIODIVERSITY; v. 44, n. 3, p. 435-443, SEP 2014. |
| Citações Web of Science: | 13 |
| Resumo | |
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. (AU) | |
| Processo FAPESP: | 09/11808-3 - Meiofauna marinha do estado de São Paulo: diversidade desconhecida e ameaçada |
| Beneficiário: | Fabiane Gallucci |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |
| Processo FAPESP: | 09/14019-0 - Nematodas marinhos de vida livre: taxonomia, sistemática e filogenia |
| Beneficiário: | Gustavo Fernandes Camargo Fonseca |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |
| Processo FAPESP: | 11/21289-3 - Taxonomy and diversity of marine meiofauna |
| Beneficiário: | Gustavo Fernandes Camargo Fonseca |
| Modalidade de apoio: | Auxílio Organização - Reunião Científica |