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Species richness of conidial fungi in two areas of Atlantic Forest at Morro da Pioneira, Serra da Jibóia, Bahia State, Brazil

The fragment of Atlantic Forest at Serra da Jibóia, municipality of Santa Terezinha, Bahia state, is a priority area for conservation. Five expeditions were undertaken every two months, from October/2005 to June/2006, in order to investigate the fungi that decompose leaf litter in this ecosystem. Thirty samples of plant debris (leaves, petioles, twigs and bark) were collected in three parcels of 10 m², 10 m from each other, in two areas with different vegetation and humidity. Samples were washed in tap water and incubated in moist chambers for 30 days; during this period fungal structures on substrates were studied and 106 species of conidial fungi were identified. In spite of the similar number of species, there was low similarity (25%) between the communities of conidial fungi of the two areas according to Sørensen's Index. These data increase our knowledge regarding the distribution and diversity of conidial fungi that colonize plant debris in the Atlantic Forest and confirm species richness in the areas studied.

diversity; Hyphomycetes; leaf litter


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