Data/hora: 01/06/2024 02:07:09

Provedor de dados: 	Anais da Academia Brasileira de Ciências	
País: 	Brazil	
Título: 	Feeding ecology of Erythrolamprus jaegeri jaegeri (Günter, 1858) and Erythrolamprus poecilogyrus sublineatus (Cope, 1860) in the coastal zone of Subtropical Brazil (Serpentes, Dipsadidae)	
Autores: 	CORRÊA,DANIELE N.; QUINTELA,FERNANDO M.; LOEBMANN,DANIEL.	
Data: 	2016-03-01	
Ano: 	2016	
Palavras-chave: 	Diet; Ophidians; Prey; Size; Niche.	
Resumo: 	ABSTRACT The snakes Erythrolamprus jaegeri jaegeri and Erythrolamprus poecilogyrus sublineatus are sympatric and syntopic in the coastal region of southern Brazil. Herein, we analyzed the diet composition to evaluate the niche breadth and the prey selection by both species. We examined 192 specimens, and analysis of stomach contents revealed that both species predominantly consume anurans. However, the diet of E. j. jaegeri consists mainly of fish and amphibians, whereas that of E. p. sublineatus is broader, including fish, amphibians, reptiles and mammals. The Standardized Levins Index presented lower values for E. j. jaegeri (BA = 0.17) than for E. p. sublineatus (BA = 0.61), evidencing specialist and generalist strategies for each species, respectively. Regarding prey selection, E. p. sublineatus presented a larger snout-vent length, head, mouth and lower jaw than E. j. jaegeri and fed on larger prey. In addition, positive correlations between the size and weight of predators and prey were confirmed in both species. The results show the development of different mechanisms for co-occurrence of the two species, such as prey selection by size, such that the size of the predator is related to the size of their prey, or by developing different strategies to decrease niche overlap between species.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100293	
Editor: 	Academia Brasileira de Ciências	
Relação: 	10.1590/0001-3765201520140570	
Formato: 	text/html	
Fonte: 	Anais da Academia Brasileira de Ciências  v.88 n.1 2016	
Fonte: 	info:eu-repo/semantics/openAccess