Floristic variation within seasonally dry tropical forests of the Caatinga Biogeographic Domain, Brazil, and its conservation implications

Apgaua, D.M.G., Pereira, D.G.S., Santos, R.M., Menino, G.C.O., Pires, G.G., Fontes, M.A.L., and Tng, D.Y.P. (2015) Floristic variation within seasonally dry tropical forests of the Caatinga Biogeographic Domain, Brazil, and its conservation implications. International Forestry Review, 17 (Supplement 2). pp. 33-44.

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Abstract

Seasonally Dry Tropical Forests (SDTF) are gaining recognition as a significant biome and poorly conserved tropical biodiversity refuge. Understanding floristic relationships within SDTF is essential for their effective conservation. This study examines the floristic variation within SDTF of the Caatinga Biogeographic Domain, in north-eastern Brazil. SDTF trees, shrubs and arborescent cacti were sampled in six localities in the Brazilian states of Minas Gerais and Bahia. A number of soil chemical attributes were also measured to analyse vegetation-soil relationships across the study sites. Five floristically distinct SDTF communities were delineated. Differences in these communities are attributable to influences from adjacent savanna and rain forest surrounding the study sites, and also to soil properties such as Al3+, base saturation and gravel content. The high species richness of, and species dissimilarity between communities reflect the need for judicious conservation planning for SDTF that account for biodiversity values and forest structural integrity.

Item ID: 43362
Item Type: Article (Research - C1)
ISSN: 2053-7778
Keywords: deciduous forest, ecotopes, Caatinga, dry tropical forest, tropical biomes
Funders: Coordenadoria de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), Fundação de Amaparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
Date Deposited: 24 May 2016 02:25
FoR Codes: 05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050202 Conservation and Biodiversity @ 20%
06 BIOLOGICAL SCIENCES > 0602 Ecology > 060202 Community Ecology (excl Invasive Species Ecology) @ 80%
SEO Codes: 96 ENVIRONMENT > 9608 Flora, Fauna and Biodiversity > 960806 Forest and Woodlands Flora, Fauna and Biodiversity @ 100%
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