Data/hora: 18/06/2024 12:16:41

Provedor de dados: | 42
País: | Brazil
Título: | Floristic and structural patterns in South Brazilian coastal grasslands
Autores: | MENEZES,LUCIANA S.; MÜLLER,SANDRA C.; OVERBECK,GERHARD E.
Data: | 2015-12-01
Ano: | 2015
Palavras-chave: | Pampa biome; Campos; Conservation; Grazing; Sandy soil.
Resumo: | ABSTRACT The natural vegetation of Southern Brazil's coastal region includes grasslands formations that are poorly considered in conservation policy, due to the lack of knowledge about these systems. This study reports results from a regional-scale survey of coastal grasslands vegetation along a 536 km gradient on southern Brazil. We sampled 16 sites along the coastal plain with 15 plots (1 m²) per site. All sites were grazed by cattle. We estimated plant species cover, vegetation height, percentage of bare soil, litter and manure, and classified species according to their growth forms. We found 221 species, 14 of them exotic and two threatened. The prostate grasses: Axonopus aff.affinis, Paspalum notatum and P. pumilumwere among the most important species. Prostrate graminoids species represented the most important vegetation cover, followed by cespitose grasses. Vegetation height, bare soil, litter and manure were similar among all areas, highlighting the homogeneity of sampling sites due to similar management. In comparison to other grasslands formations in Southern Brazil, the coastal grasslands presented rather low species richness. The presence of high values for bare soil at all sampling sites indicates the need to discuss management practices in the region, especially with regard to the intensity of livestock grazing.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000502081
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/0001-3765201520140555
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.87 n.4 2015
Fonte: | info:eu-repo/semantics/openAccess