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Revista mexicana de biodiversidad

On-line version ISSN 2007-8706Print version ISSN 1870-3453


VARGAS-SIMON, Georgina et al. Distribution of Ormosia macrocalyx in Mexico and delimitation of its occupation areas. Rev. Mex. Biodiv. [online]. 2018, vol.89, n.4, pp.1201-1211. ISSN 2007-8706.

The geographic-ecological distribution of Ormosia macrocalyxDucke was analyzed to delimit the occupation areas (AO) in Mexico, in order to recognize the ecological requirements of this tree species, which can contribute to the development and establishment of appropriate protection programs. All georeferenced species records were obtained from national and international herbaria as well as national forest inventories. Each record was correlated with the ecological variables from database of National Commission for the Knowledge and Use of Biodiversity and National Institute of Statistics and Geography and maps of the AO were drawn up. The AO were calculated and delimited by the Cartographic method by conglomerates. This species is distributed in the southern states of Mexico, occupying zones of high precipitation (≥ 800 mm), at elevations lower than 1,150 m asl and mainly on Gleysol soils. It has been recorded in forest remnants in agroforestry systems and as isolated individuals. Five AO and 6 satellites were delimited, the 2 largest areas located within Tabasco andChiapas. Due to its specialized habitat and the fragmented ecosystems in which it is found, this species can be categorized as vulnerable.

Keywords : Biological corridors; Threatened species; Cartographic method by conglomerates; Ecological requirements.

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