Floristic and structural patterns of a forest fragment in the metropolitan region of Porto Alegre, RS, Brazil.

• Autor(a) principal: Troian, Letícia Casarotto
• Data de Publicação: 2011
• Outros Autores: Käffer, Márcia Isabel, Müller, Sandra Cristina, Troian, Vera Ribeiro, Guerra, Judite, Borges, Marcelo Gules, Guerra, Teresinha, Rodrigues, Gilberto Gonçalves, Forneck, Eduardo Dias
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Iheringia. Série Botânica
• Texto Completo: https://isb.emnuvens.com.br/iheringia/article/view/58
• topic: conservation; Atlantic forest; remnants; municipal park; conservação; mata Atlântica; remanescentes; parque municipal

Urban areas result in fragmentation, species loss and ecosystem changes. However, natural ecosystem remnants in urban zones may be refuges or corridors for many species. This study presents fl oristic and structural features of the tree and understory strata of an urban forest fragment in Cachoeirinha, Rio Grande do Sul. Ninety tree and 15 shrub species were recorded, of which two were endangered, two protected, and nine exotic. In the quantitative sample, 54 species were contemplated in the tree stratum and 45 in the understory. The fragment is characterized as a Semideciduous Seasonal Forest and presents high tree species diversity, refl ecting density evenness. Structurally, there are no features of a more conserved core area, although some species tend to occur close to the edges. We believe that conserving semi-natural urban areas like this contributes to maintaining habitats, species diversity, and connectivity among forest remnants in the regional extent, because it maintains the features of the regional forests, including the fl ora.