Data/hora: 11/06/2024 09:08:19

Provedor de dados: 	36	
País: 	Brazil	
Título: 	Density-dependent morphological plasticity and trade-offs among vegetative traits in Eichhornia crassipes (Pontederiaceae)	
Autores: 	Andrade,Eleonora Alvarenga; Barbosa,Mário Eduardo Avelar; Demetrio,Guilherme Ramos.	
Data: 	2013-12-01	
Ano: 	2013	
Palavras-chave: 	Phenotypic plasticity; Plant-environment relationships; Plastic morphology; Macrophyte.	
Resumo: 	Density-dependent responses are an important component of the organism life-history, and the resource allocation theory is a central concept to the life-history theory. When resource allocation varies due to environmental changes, a plant may change its morphology or physiology to cope with the new conditions, a process known as phenotypic plasticity. Our study aimed to evaluate how plant density affects Eichhornia crassipes allocation patterns. A total of 214 individuals in high and low density were collected. The density effect was observed in all plant traits examined including biomass accumulation. All traits of E. crassipes demonstrated higher values in high density conditions, except for biomass of leaves. Density exhibited a high influence on vegetative traits of E. crassipes, but did not influence allocation pattern, since a trade-off among the vegetative traits was not found. The morphological plasticity and the absence of trade-offs were discussed as strategies to overcome neighbor plants in competition situations. In high density conditions, there were clear changes in the morphology of the plants which probably allows for their survival in a highly competitive environment.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672013000400007	
Editor: 	Instituto Nacional de Pesquisas da Amazônia	
Relação: 	10.1590/S0044-59672013000400007	
Formato: 	text/html	
Fonte: 	Acta Amazonica  v.43 n.4 2013	
Fonte: 	info:eu-repo/semantics/openAccess