Organização das assembléias de peixes em riachos da bacia do rio Iguatemi, Estado do Mato Grosso do Sul
| Autor: | Yzel Rondon Súarez, Miguel Petrere Júnior |
|---|---|
| Přispěvatelé: | Universidade Estadual de Mato Grosso do Sul (UEMS), Universidade Estadual Paulista (Unesp) |
| Rok vydání: | 2005 |
| Předmět: |
Ecomorphology
Drainage basin STREAMS Biology geography population abundance General Biochemistry Genetics and Molecular Biology statistical analysis Abundance (ecology) Community ecology fish nonhuman geography.geographical_feature_category species diversity Community Ecology species composition Fishes stream (river) Species diversity Population abundance Iguatemi River Basin Streams Pisces Fish General Agricultural and Biological Sciences Brazil river basin |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 1807-863X 1679-9283 |
| DOI: | 10.4025/actascibiolsci.v27i2.1350 |
| Popis: | Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:21:18Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:39:23Z : No. of bitstreams: 1 2-s2.0-33144461859.pdf: 191572 bytes, checksum: c90b07f72a0784aaa7c59e6dd90bd567 (MD5) Made available in DSpace on 2014-05-27T11:21:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-04-01 Aiming to describe the patterns of the fish assemblages organization in streams of the Iguatemi River basin we sampled streams with seine nets and sieves from November/1999 to August/2000. We collected 567 individuals distributed in 24 species. We detected statistically significant influence of the streams characteristics upon species diversity. The species composition was hardly explained by the physical and chemical characteristics of the streams. Then we detected significant influence of the fish ecomorphology in the species occurrence (Mantel r = -0.34; P = 0.04), but not in the distribution of its abundance (Mantel r = -0.21; P = 0.07). We verified through the species co-occurrence index (C-score) that its composition in the studied streams is stochastic. Laboratório de Ecologia Universidade Estadual de Mato Grosso do Sul (UEMS), rodovia Dourados-Itahum km 12, 79804-970, Dourados Departamento de Ecologia Universidade Estadual Paulista (Unesp) Departamento de Ecologia Universidade Estadual Paulista (Unesp) |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|