Avian assemblages in bamboo and non-bamboo habitats in a tropical rainforest

Autor(es)

Rother, Debora Cristina ^[1] ; Alves, Kaizer Jose Ferreira ^[2] ; Pizo, Marco Aurelio ^[3]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, UNESP, Dept Bot, BR-13506900 Sao Paulo - Brazil

^[2] Inst Adolfo Lutz Reg Rio Claro, BR-13500090 Sao Paulo - Brazil

^[3] Univ Estadual Paulista, UNESP, Dept Zool, BR-13506900 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: EMU: Austral Ornithology; v. 113, n. 1, p. 52-61, 2013.
• Citações Web of Science: 9

Resumo

Some species of bird are closely associated with bamboos (bamboo specialists) but community-wide studies comparing the avian assemblages in bamboo and non-bamboo habitats are lacking. Using point counts, we compared the species richness, abundance and composition of the avian assemblages in bamboo and non-bamboo habitats in the Brazilian Atlantic forest. Apart from considering bamboo specialists and non-specialist species, we contrasted birds from different categories of forest dependence, forest strata and diet. We recorded a total of 81 species of birds (74 in bamboo, 55 in non-bamboo habitats), including 15 bamboo specialists. Species richness was greater in bamboo habitats in all categories of diet and forest dependence. Bamboo and non-bamboo habitats had a similar number of canopy species, but bamboo habitats had a greater number of non-canopy species. The abundance of the whole avian community or of each of the dietary categories did not differ between habitats. The overall species composition differed between habitats, with a more homogeneous composition in non-bamboo habitats. A great number of species use bamboo habitats, even if they are not bamboo specialists. The initial expansion of bamboos, forming discrete patches of bamboo within mature forest, represents an intermediate-level disturbance that enhances forest heterogeneity and promotes the diversity of avian communities. (AU)

• Processo FAPESP: 99/09635-0 - Diversidade, dinâmica e conservação de árvores em florestas do estado de São Paulo: estudos em parcelas permanentes
• Beneficiário: Ricardo Ribeiro Rodrigues
• Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Temático