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Estimating environmental suitability and potential geographic distribution of the regional endemic tree Haematoxylum calakmulense (Fabaceae) in the Yucatan Peninsula

Abstract:

In Mexico, species of the genus Haematoxylum have historically stood out for their economic value, although they have received less attention from an ecological point of view. The objective of this work was to model the ecological niche of H. calakmulense and characterize its potential distribution areas in southeastern Mexico. The selected distribution model included a set of eight variables: isothermality, the maximum temperature of the warmest month, the maximum temperature of the coldest month, precipitation of the driest month, soil clay content, grain density, and elevationConsidering the binary map of environmental suitability, only 4.9% of the potential range of H. calakmulense in Mexico is within a federally administered protected natural area. In addition, leptosol-vertisol soils are most frequently recorded in the areas where the species is most likely to occur. In general, environmental conditions are more favorable for the development of the species in the central part of the Yucatan Peninsula in Mexico. This information will serve as a basis for deepening our knowledge of the ecology of this species and will allow us to implement appropriate conservation and management projects and plans.