Data/hora: 09/06/2024 14:51:24

Provedor de dados: 	83	
País: 	Brazil	
Título: 	Diet and body shape among populations of Bryconamericus iheringii (Otophysi: Characidae) across the Campos Sulinos ecosystem	
Autores: 	Kokubun,Érika Endo; Bonato,Karine Orlandi; Burress,Edward D.; Fialho,Clarice Bernhardt.	
Data: 	2018-01-01	
Ano: 	2018	
Palavras-chave: 	Ecomorphology; Generalist diet; Grassland ecosystem; Stream.	
Resumo: 	ABSTRACT Alterations in natural landscapes, mainly caused by anthropic pressures, have been threatening the world’s biomes, including aquatic environments and its biota. This study describes the diet of Bryconamericus iheringii, and how its body shape relates to environmental variables in populations of 22 streams. A wide array of food items were found, mainly composed of allochthonous plants (50.5%) and autochthonous invertebrates (25.2%). Even though food items remained almost the same, the predominant food group significantly differed among streams, mainly in relation to environmental characteristics. There was variation in body shape primarily associated with body depth and length of the pre-dorsal region; however, these differences did not correspond with streams. PLS-CA analyses indicated that environmental characteristics, such as substrate type, percentage of marginal vegetation have some influence over food items availability but not on body shape. This may be because B. iheringii is a non-specialist species capable of prey switching based on availability due to an intermediate body shape suited for generalist feeding habits.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000400202	
Editor: 	Sociedade Brasileira de Ictiologia	
Relação: 	10.1590/1982-0224-20170167	
Formato: 	text/html	
Fonte: 	Neotropical Ichthyology  v.16 n.4 2018	
Fonte: 	info:eu-repo/semantics/openAccess