Data/hora: 04/06/2024 06:11:41

Provedor de dados: 	3	
País: 	Brazil	
Título: 	Does riparian vegetation affect fish assemblage? A longitudinal gradient analysis in three Amazonian streams	
Autores: 	Virgilio, Lucena Rocha; Ramalho, Werther Pereira; Silva, João Carlos Barbosa da Silva; Suçuarana, Monik da Silveira; Brito, Cleyton Holanda de; Vieira, Lisandro Juno Soares.	
Data: 	2018-11-30	
Ano: 	2018	
Palavras-chave: 	Low-order streams; Environmental alteration; Diversity loss; Fish diversity; Indicator species; Pasture.	
Resumo: 	 The degradation of riparian vegetation in low-order streams can cause irreversible environmental damage, biodiversity loss and alter the structure of communities. In this context, the present study evaluated how the level of degradation of riparian vegetation influences the fish assemblage in three low-order streams in the Brazilian Amazon. In each stream, three different stretches were delimited, distributed in the environments of forest, edge and pasture, and the samplings were conducted in three hydrological regimes using dip nets. Influences of the stretches and streams on richness and abundance were tested with GLMM, on the composition with PERMANOVA and on indicator species with IndVal. Species richness was higher in forest environments and lower in pasture; while abundance was higher in pasture and lower in forest. Species composition differed between stretches, streams and in the interaction between stretches and streams, with a strong difference between stretches of forest and pasture environments. Six species dependent of the riparian vegetation were classified as indicators of forest environments; while a generalist species was indicator of pasture. These results reinforce the negative influence of riparian vegetation removal on biological communities and provide subsidies that can help in the conservation and management of these systems. 	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/42562

10.4025/actascibiolsci.v40i1.42562	
Editor: 	Universidade Estadual De Maringá	
Relação: 	http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/42562/pdf

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/downloadSuppFile/42562/18213

http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/downloadSuppFile/42562/18214	
Formato: 	application/pdf	
Fonte: 	Acta Scientiarum. Biological Sciences; v. 40 (2018): Publicação Contínua; e42562

Acta Scientiarum. Biological Sciences; v. 40 (2018): Publicação Contínua; e42562

1807-863X

1679-9283	
Fonte: 	Direitos autorais 2018 Acta Scientiarum. Biological Sciences

http://creativecommons.org/licenses/by/4.0