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Revista mexicana de biodiversidad
On-line version ISSN 2007-8706Print version ISSN 1870-3453
Abstract
MORRONE, Juan J.; ACOSTA, Roxana and FERNANDEZ, Jesús A.. Biogeographic units in the Chihuahuan Desert: implications for regionalization and area nomenclature. Rev. Mex. Biodiv. [online]. 2022, vol.93, e933907. Epub Dec 05, 2022. ISSN 2007-8706. https://doi.org/10.22201/ib.20078706e.2022.93.3907.
There are several biogeographic regionalizations of the Chihuahuan Desert province, which differ in the criteria used, and the names and categories given to the different biotic units recognized. We compared maps of these biogeographic regionalizations, detecting similarities and differences in the units recognized, and searched for endemic plant and animal taxa diagnosing them. Eight biotic units are recognized and named: Chihuahuan Desert province, Chihuahuan subprovince (including the Trans-Pecos and Mapimian districts), and Mexican Plateau subprovince (including the Saladan, Mexican Southern Arid and Tehuacán-Cuicatlán Valley districts). These subprovinces and districts are hypothesized to represent natural biotic units, each harboring a particular assemblage of endemic taxa.
Keywords : Biogeographic regionalization; Biogeography; Ecology; Nearctic region; North America.