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Título del libro: Lake Alchichica Limnology: The Uniqueness Of A Tropical Maar Lake
Título del capítulo: The Axolotl of Alchichica

Autores UNAM:
GABRIELA PARRA OLEA; VICTOR HUGO JIMENEZ ARCOS; OMAR HERNANDEZ ORDOÑEZ;
Autores externos:

Idioma:

Año de publicación:
2022
Palabras clave:

Alchichica; Amphibian decline; Anura; Caudata; Chytridiomycosis; Cuenca oriental


Resumen:

The amphibian diversity of the six crater lakes of the Cuenca Oriental is restricted to nine species, three salamanders and six frogs. Lake Alchichica contains only one amphibian species, the microendemic paedomorphic axolotl Ambystoma taylori, which is one of the most fascinating examples of speciation recorded on amphibians due to its adaptation to unique water salinity conditions. Two more microendemic species occur in the Oriental basin, a recently discovered plethodontid salamander (Pseudoeurycea sp.), found under unusual conditions, and a frog species (Rana chichicuahutla) known only from two collected specimens. Recent surveys suggest Ambystoma taylori is less abundant today than in the recent past and that they now occur much deeper (>25 m) than previous surveys (12 m). One of the factors associated with the global amphibian decline is the chytrid fungus Batrachochytrium dendrobatidis. The analysis on A. taylori from Lake Alchichica and A. velasci from Lake Atexcac samples were negative for B. dendrobatidis. Both lakes, Alchichica and Atexcac are saline, which could be potentially restrictive, preventing the growth of B. dendrobatidis. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2022.


Entidades citadas de la UNAM: