DISTRIBUCIÓN ACTUAL Y POTENCIAL DE TAXUS GLOBOSA (TAXACEAE) EN MÉXICO.

To better understand the potential distribution of Taxus globosa Schlecht., we used a conifer species with restricted distribution, listed on the NOM-059-SEMARN AT-2010, a modeling distribution procedure of maximum entropy or MaxEnt, based on 40 occurrences of field records and 39 REMIB -CONABIO records. Two different scenarios of geographical and environmental coverages--climatic and topographic--were proved statistically. The BIOCLIM variables scenario with topography data show a more accurate model in the range of 0.9 to 1.0 probability with a 55% coincidence; it was statistically significant at (AUC=0.985). Slope variable indicates an environmental variable with more influence in potential modeling, followed by Bio14 (Precipitation of Driest Month). In agreement with the MaxEnt analysis with 19 BIOCLIM and 3 topographic variables, the main plant communities in the modeling area (where Taxus globosa is distributed in Mexico) are pine-oak forest, oak-pine forest, pine forest, and cloud mesic forest. Taxus globosa is potentially distributed in Hidalgo, Nuevo León, Puebla, Tamaulipas, and Veracruz. [ABSTRACT FROM AUTHOR]