| Full text | |
| Author(s): |
Fonseca, G.
[1, 2]
;
Maria, T. F.
[3]
;
Kandratavicius, N.
[4]
;
Venekey, V.
[5]
;
Gheller, P. F.
[6]
;
Gallucci, F.
[1, 2]
Total Authors: 6
|
| Affiliation: | [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
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | MARINE BIODIVERSITY; v. 44, n. 3, p. 435-443, SEP 2014. |
| Web of Science Citations: | 13 |
| 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. (AU) | |
| FAPESP's process: | 09/11808-3 - Marine meiofauna in the State of São Paulo: hidden and threatened diversity |
| Grantee: | Fabiane Gallucci |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 09/14019-0 - Free living marine nematodes: taxonomy, systematics and phylogeny |
| Grantee: | Gustavo Fernandes Camargo Fonseca |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 11/21289-3 - Taxonomy and diversity of marine meiofauna |
| Grantee: | Gustavo Fernandes Camargo Fonseca |
| Support Opportunities: | Organization Grants - Scientific Meeting |