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International Journal of Ecology - Volume 2014 2014, Article ID 819739, 11 pages -

Research Article

Botany Lab, Postgraduate Program in Comparative Biology, Department of Biology, Faculty of Philosophy Sciences and Letters of Ribeirao Preto City, University of Sao Paulo USP, 14040-901 Ribeirao Preto, SP, Brazil

State University of Goias UEG, 75.780-000 Ipameri, GO, Brazil

Department of Botany, Federal University of Goias UFG, 74.690-900 Goiania, Goias, Brazil

Received 6 August 2014; Accepted 30 September 2014; Published 12 November 2014

Academic Editor: Béla Tóthmérész

Copyright © 2014 Ismael Martins Pereira et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We have modeled the ecological niche for 12 plant species belonging to the genus Davilla Dilleniaceae which occur in the Atlantic Forest of Brazil. This group includes endemic species lianas threatened by extinction and is therefore a useful indicator for forest areas requiring conservation. The aims are to compare the distribution and richness of species within the protected areas, assessing the degree of protection and gap analysis of reserves for this group. We used the Maxent algorithm with environmental and occurrence data, and produced geographic distribution maps. The results show that high species richness occurs in forest and coastal forest of Espírito Santo to Bahia states. The endemic species comprise D. flexuosa, D. macrocarpa, D. flexuosa, D. grandifolia, and D. sessilifolia. In the Atlantic Forest of southeastern Brazil, the following endemic species occur: D. tintinnabulata and D. glaziovii, with this latter species being included in the “red list” due habitat loss and predatory extractivism. The indicators of species richness in the coastal region of Bahia correspond with floristic inventories that point to this area having a high biodiversity. Although this region has several protected areas, there are gaps in reserves, which, combined with anthropogenic threats and fragmentation, have caused several problems for biodiversity.

Autor: Ismael Martins Pereira, Vera Lúcia Gomes-Klein, and Milton Groppo

Fuente: https://www.hindawi.com/


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