Portal de Periódicos da CAPES

Artigo Produção Nacional Revisado por pares

BIBTEX RIS

Associações entre as espécies de pteridófitas em dois fragmentos de Floresta Atlântica do Nordeste brasileiro

2006; UNIVERSIDADE FEDERAL DE SANTA CATARINA; Volume: 19; Issue: 3 Linguagem: Inglês

2175-7925

Márcio Roberto Pietrobom, Iva Carneiro, Leão Barros,

Lichen and fungal ecology

Association of pteridophyte species in two fragments of Atlantic Coastal Forest in the Brazilian Northeast. This study aims to investigate fern flora similarity and fern species relationships in the study areas, in terms of their substrates, habitat types, and life forms. The study was conducted in the Agua Azul forest fragment, municipality of Timbauba, Pernambuco, and the Maria Maior forest fragment, municipality of Sao Jose da Laje, Alagoas. The Jaccard similarity index was used for cluster analysis. The 112 species that occur in the two areas were used for numerical analysis. The floristic similarity was great (J=43.75%), principally due to similarities in the two areas vegetational types, as was expected due to their geographic proximity to one another and their similar climatic conditions. Five groups of associated species were determined for the Agua Azul fragment and six groups for the Maria Maior fragment. In general, the ecological factors that determined fern species associations were habitat and type of substrate.