Distribución potencial del complejo Aspidoscelis gularis (squamata: teiidae) en México

The distribution of Aspidoscelis gulariscomplex in Mexico has been difficult to model due to taxonomic problems facing its members; and because, published models exclude typical areas where taxa have been reported. The goal of this study was to update the information on the distribution of A. gulari...

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Bibliographic Details
Main Authors: Pérez Almazán, Carlos, Manríquez Morán, Norma Leticia, Madrigal Uribe, Delfino, Némiga, Xanat Antonio
Format: Article in Journal/Newspaper
Language:Spanish
Published: 2014
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Online Access:https://dialnet.unirioja.es/servlet/oaiart?codigo=7992138
Description
Summary:The distribution of Aspidoscelis gulariscomplex in Mexico has been difficult to model due to taxonomic problems facing its members; and because, published models exclude typical areas where taxa have been reported. The goal of this study was to update the information on the distribution of A. gularis complex and suggest a model applicable to species groups considered “complex”, as well as to any taxonomic level. The generated information allowed developing a distribution model through Mahalanobis-typicality algorithm in IDRISI Taiga, validated using the area under the curve (AUC), with value of 0.932. The modeled distribution spanned in the states belonging to the Mexican Plateau. It was found that the taxa of the complex were associated with the Mexican Plateau ́s vegetation, classified as Chihuahuan desert. The vegetation was composed mainly by xeric scrub and grasslands, suggesting a factor that limits their distribution in northern and central Mexico, as it happens similar to other groups of reptiles. La distribución del complejo Aspidoscelis gularis en México ha sido difícil de modelar debido a los problemas taxonómicos que enfrentan sus integrantes y a que los modelos publicados excluyen zonas típicas donde los taxones han sido reportados. El objetivo de este trabajo fue actualizar la información sobre la distribución del complejo A. gularis y proponer un modelo aplicable a grupos de especies considerados “complejos”, así como para cualquier nivel taxonómico. La información generada permitió desarrollar un modelo de distribución con el algoritmo Tipicidad de Mahalanobis en IDRISI Taiga y se validó con el área bajo la curva (AUC), la cual obtuvo un valor de 0.932. La distribución modelada abarcó estados pertenecientes al Altiplano Mexicano. Se encontró que los taxones del complejo están asociados con la vegetación característica del Altiplano Mexicano clasificada como desierto Chihuahuense compuesta principalmente por matorrales xerófilos y pastizales, lo que sugiere un factor que limita su distribución ...