New distribution records of Chaltenobatrachus grandisonae (Anura: Batrachylidae) in Patagonia, Chile

Abstract

Abstract:Chaltenobatrachus grandisonae was first collected in Puerto Edén, Wellington Island, Magallanes Region, Chile, where the species has never been found again. Subsequently Basso et al. (2011) found it in two new localities in Lago del Desierto and Lago Nansen, Santa Cruz province, southern Patagonia, Argentina. Recently Cisternas et al. (2013) reported its presence in Laguna Caiquenes, Aysén Region, Chile. Our results provide distribution data between the northern and southern locations in Chile, and we confirm the presence of the species in Chilean Patagonia.

Low genetic divergence but many names in the endemic Patagonian frogs of the genusAtelognathus(Anura, Batrachylidae): A molecular genetic and morphological perspective

“…The area of Lago Buenos Aires plateau was suggested as a Pleistocene refuge for lizards (Breitman et al., ) and is also a candidate for other groups like frogs during the Pleistocene or immediate post‐Pleistocene periods, including Atelognathus . The hypothesis of an ectothermic vertebrate surviving the glacial age is plausible also to explain the current distribution of Chaltenobatrachus —sister genus of Atelognathus —in the Nothofagus forests at latitudes beyond 47°S (Basso et al., ; Díaz‐Páez, Alveal, Cisternas‐Medina, & Ortiz, ).…”

Actualización de la distribución geográfica de la rana del Chaltén (Chaltenobatrachus grandisonae) (Lynch, 1975)

“…La rana del Chaltén o sapo de Puerto Edén (Chaltenobatrachus grandisonae) (Lynch, 1975) es un anfibio escasamente conocido (Basso et al 2012), registrado en unas pocas localidades remotas de la Patagonia chilena y argentina (ver revisión en Díaz-Páez et al 2015), y cuya extensión del área de distribución se ha estimado en 34.912 km 2 (IUCN 2019).…”