Resumen

LLANES-QUEVEDO, Alexander; SANCHEZ-RAMOS, Luis Enrique  y  NAVARRO-SIGUENZA, Adolfo G.. Historical and current patterns of diversity and biogeographic relationships of the resident avifauna of the tropical forests of Mexico. Rev. Mex. Biodiv. [online]. 2024, vol.95, e955341.  Epub 13-Sep-2024. ISSN 2007-8706.  https://doi.org/10.22201/ib.20078706e.2024.95.5341.

We present an analysis of diversity and biogeographic patterns of 260 resident bird species in the tropical forests of Mexico, based on historical data (collected between the 18th century and 2007) and presence records from the last decade (2013-2023). We performed comparisons of the number and composition change of species, considering the “historical” and “current” distribution matrices, and a parsimony analysis of endemicity. According to historical data, the highest species richness is located on the slope of the Gulf of Mexico and the Yucatán Peninsula, while the seasonally dry forests of the Pacific coast and the Balsas Basin presented the highest values of endemic species. However, data collected in the last decade show a significant decline in the number of species in all areas analyzed. The beta diversity estimation indicated high values of change in species composition for the matrices evaluated. Biogeographic hypothesis obtained indicates the existence of 2 main groups: i) Pacific slope of Mexico and the Balsas Basin and ii) north of the Veracruzan province, the north of the Isthmus of Tehuantepec and the Yucatán Peninsula.

Palabras llave : Analysis of endemicity; Anthropic changes; Conservation; Geographic distribution; Beta diversity; Neotropics.

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