Data/hora: 05/06/2024 08:17:07

Biblioteca(s): 	Embrapa Pantanal.	
Data corrente: 	24/05/1996	
Data da última atualização: 	31/05/1996	
Autoria: 	SILVERTOWN, J. W.	
Título: 	Micro-spatial heterogeneity and seedling demography in species-rich grassland.	
Ano de publicação: 	1981	
Fonte/Imprenta: 	New Phytologist, v.88, n.1, p.117-128, 1981.	
Idioma: 	Inglês	
Conteúdo: 	It is suggested that spatial niche-separation between grassland species occurs in the re- generation phase and that the differential response of species to micro-variations in leaf cover may allow coexistence at high density. A technique for measuring heterogeneity in leaf-cover on a scale of 1-cm2 uinits (micro-cover) and the demography of seedling co- horts of Reseda lutea and Anthyllis vulneraria in relation to this heterogeneity is described. Densities of seedlings were significantly higher in micro-sites of low micro-cover for R. lu- tea and for one of the three cohorts of A. vulneraria studied. No relationship was found between mortality and density of seedlings or micro-cover. The ultimate causes of these distribution patterns of seedlings and their consequences for the maintenance of species diversity in grassland are discussed.	
Palavras-Chave: 	Demografia de muda; Grassland; Heterogeneidade; Heterogeneity; Micro-spatial heterogeneity; Seedling demography; Species-rich grassland.	
Thesagro: 	Demografia; Pastagem.	
Thesaurus Nal: 	demography.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Pantanal (CPAP)	
Exemplares: 	CPAP - (32004-1) - ADC - SP - -- - SP2480 -  - 2480 - DIS
CPAP - (32378-1) - ADC - SP - -- - SP2788 -  - 2788 - DIS