Alterations in the lignicolous myxomycete biota over two decades at the Dois Irmaos Ecologic State Reserve, Recife, Pernambuco, Brazil

作者：de Lima Rufino Marcio Ulisses; Cavalcanti Laise de Holanda^*

来源：Fungal Diversity, 2007, 24: 159-171.

• Atlantic Forest
• ecologic reserve
• lignicolous
• Myxomycetes
• Tubifera

The Dois Irm (a) over tilde os Ecologic State Reserve is an Atlantic Forest fragment located in the municipality of Recife (8 degrees 00' 00" to 8 degrees 7' 30" S and 34 degrees 52' 30" W), within the state of Pernambuco, Northeast Brazil, and covers an area of 387.40 ha. The objective of this was to analyze the effects of alterations that have occurred in the reserve's environment over the last two decades on the composition, abundance, and diversity of lignicolous species of myxomycetes. During two years, 22 field trips were carried out and 220 dead tree trunks were examined. In the two year period, 529 specimens of lignicolous myxomycetes were obtained and a total of 33 species representing 14 genera were recorded, distributed among six families. The results were compared with a study undertaken in the same area in 1981, when 431 specimens of lignicolous myxomycetes were obtained from 31 field trips, and 62 lignicolous species representing 21 genera were recorded, distributed among eight families. Species diversity decreased and there was an increase in dominant species. The lignicolous group was negatively affected by the recent alterations in the reserve's environment. Tubifera bombarda which used to be rare in the area and is presently abundant and very frequent appears to be a species that is well adapted to Atlantic Forest areas heavily affected by human activities.

• 出版日期2007-1-31