Biodiversity and Conservation

, Volume 16, Issue 11, pp 3111–3128 | Cite as

A hot-point within a hot-spot: a high diversity site in Brazil’s Atlantic Forest

  • Adriana Maria Zanforlin Martini
  • Pedro Fiaschi
  • André M. Amorim
  • José Lima da Paixão
Original Paper

Abstract

The Brazilian Atlantic Forest is considered one of the world’s most important sites for biodiversity conservation, and within this biome there are regions with differing levels of species richness, species composition, and endemism. The present study was undertaken in southern Bahia, Brazil, and employed a standardized sampling method to compare the density of arboreal species in this region with other areas throughout the world known for their high tree species density. A total of 144 tree species with DBH > 4.8 cm were sampled within a 0.1 ha plot of old-growth forest (OGF), and these data were then compared with 22 other world sites that had been sampled using the same methodology and likewise demonstrated high densities of arboreal species. Only one site of ombrophilous forest in Colombia demonstrated a higher tree species density (148 spp. in 0.1 ha) than was encountered in southern Bahia. Other areas of Brazil, including other Atlantic Forest sites, showed significantly inferior tree species densities. These results indicate that this region of southern Bahia has one of the greatest numbers of tree species in Brazil and in the world. These results, associated with the high levels of endemism there, indicate the high biological importance of this region. It is therefore fundamental that efforts aimed at halting the degradation of these forests be linked to programs that will increase our knowledge of the species found there as well as the ecological and evolutionary processes that originated these unique forests.

Keywords

Brazilian Atlantic Forest Biodiversity Southern Bahia Tree species density 

Abbreviations

PESC

Serra do Conduru State Park

OGF

Old-growth forest

OLF

Old logged forest

RLF

Recently logged forest

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Copyright information

© Springer Science+Business Media, Inc. 2007

Authors and Affiliations

  • Adriana Maria Zanforlin Martini
    • 1
    • 2
    • 3
  • Pedro Fiaschi
    • 4
    • 5
  • André M. Amorim
    • 1
    • 4
  • José Lima da Paixão
    • 4
  1. 1.Departamento de Ciências BiológicasUniversidade Estadual de Santa CruzIlheusBrazil
  2. 2.Instituto de Estudos Sócio-ambientais do Sul da BahiaIlheusBrazil
  3. 3.Projeto Parcelas PermanentesLERF/DCB/ESALQ-USPPiracicabaBrazil
  4. 4.Herbarium CEPECIlheusBrazil
  5. 5.Department of BiologyVirginia Commonwealth UniversityRichmondUSA

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