Data/hora: 08/06/2024 16:48:12

Provedor de dados: 	76	
País: 	Brazil	
Título: 	Oligochaetes (Annelida, Clitellata) in a neotropical stream: a mesohabitat approach	
Autores: 	Gorni,Guilherme R.; Alves,Roberto da G.	
Data: 	2012-03-01	
Ano: 	2012	
Palavras-chave: 	Aquatic oligochaetes; Community structure; Mountain stream; Campos do Jordão State Park.	
Resumo: 	This paper analyses the relationship among mesohabitat and aquatic oligochaete species in the Galharada Stream (Campos do Jordão State Park, state of São Paulo, Brazil). Between August 2005 and May 2006 a total of 192 samples were obtained in areas of four different mesohabitats: riffle leaf litter (RL), pool leaf litter (PL), pool sediment (PS) and interstitial sediment from rocky beds in riffle areas (IS). In the mesohabitats sampled, 2007 specimens were identified, belonging to two families (Naididae and Enchytraeidae). Among the oligochaetes identified Naididae was represented by six genera (Allonais, Chaetogaster, Nais, Pristina, Aulodrilus and Limnodrilus). Principal components analysis (PCA) revealed the first two axes explained 85.1% of the total variance of the data. Limnodrilus hoffmeisteri Claparede, 1862 and Aulodrilus limnobius Bretscher, 1899 were associated with the pool areas (PL and PS). Most species of genera Pristina and Nais demonstrated apparent affinity with the riffle mesohabitats. The Indicator Species Analysis (IndVal) revealed that Nais communis Piguet, 1906, Pristina leidyi Smith, 1896 and Pristina (Pristinella) jenkinae (Stephenson, 1931) are indicative of RL mesohabitat, while family Enchytraeidae was considered indicative of PL mesohabitat.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212012000100015	
Editor: 	Museu de Ciências Naturais	
Relação: 	10.1590/S0073-47212012000100015	
Formato: 	text/html	
Fonte: 	Iheringia. Série Zoologia  v.102 n.1 2012	
Fonte: 	info:eu-repo/semantics/openAccess