Las cactáceas del Valle de Tehuacán-Cuicatlán, México: estimación de la calidad del muestreo

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Abstract

Cacti richness and endemism from Tehuacán-Cuicatlán Valley (VTC) is well known but the quality sampling is not. The aim of this work was to describe the distribution of cacti species in the VTC and assess the quality sampling. We generated a species richness map and estimated the distribution area for every species, with the aid of quantitative biogeography techniques based on species incidence records within Operative Geographic Units (OGU). We used a grid of 159 OGUs (cells 5longitud x 5 latitude). Cacti richness and quality sampling in each OGU was assessed with the Chao2 non-parametric estimator. Results indicated: 1) high (63.4%) species concentration in the subregion of Zapotitlán Valley; 2) a richness of 71 species in the VTC and a total estimated richness of 76 species; 3) an adequate quality sampling (> 75%) in 53% (85 out of 159) of the total of OGU; and 4) a restricted distribution in 63.4% (45 out of 71) of species in at least less than 10% of VTC area.

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Miguel-Talonia, C., Téllez-Valdés, O., & Murguía-Romero, M. (2014). Las cactáceas del Valle de Tehuacán-Cuicatlán, México: estimación de la calidad del muestreo. Revista Mexicana de Biodiversidad, 85(2), 436–444. https://doi.org/10.7550/rmb.31390

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