Data/hora: 09/06/2024 12:33:28

Provedor de dados: | 76
País: | Brazil
Título: | Composition and diversity of benthic macroinvertebrates in a Brazilian Cerrado stream
Autores: | Pio,Jéssica F. G.; Santiago,Eunice de F. E.; Copatti,Carlos E.
Data: | 2020-01-01
Ano: | 2020
Palavras-chave: | Abundance; Chironomidae; Functional feeding group; Seasonal variations; Richness.
Resumo: | ABSTRACT This study aimed to analyse the diversity and composition of benthic macroinvertebrate assemblages in the dry and rainy seasons in a Brazilian Cerrado stream, where it was hypothesized that the dry season has higher diversity and it differs in terms of organism composition in relation to the rainy season. Sampling was carried out in the dry (May and August/2016 and August/2017) and rainy seasons (November/2016 and February and November/2017). Individuals were identified at the family level and classified according to functional feeding group (FFG). There were 3,776 individuals, in which Chironomidae was the most abundant taxon with 2,226 organisms. The FFG with the highest number of individuals and species richness were collector-gatherer and predator, respectively. The species richness was higher in the dry season than in the rainy season. The ordinance generated by NMDS showed that there was no distinction in the composition of the assemblage between the dry and rainy seasons. Seasonal variations do not alter the abundance and composition of the benthic macroinvertebrate assemblage, but the species richness does decrease in rainy seasons.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100216
Editor: | Museu de Ciências Naturais
Relação: | 10.1590/1678-4766e2020016
Formato: | text/html
Fonte: | Iheringia. Série Zoologia  v.110 2020
Fonte: | info:eu-repo/semantics/openAccess