Extension of the distribution range and new antecedents of the habitat of two frog species of the genus Alsodes Bell, 1843 (Amphibia, Anura, Alsodidae) in the Nahuelbuta Range, southern Chile

Biodiversity and Natural History

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Title Extension of the distribution range and new antecedents of the habitat of two frog species of the genus Alsodes Bell, 1843 (Amphibia, Anura, Alsodidae) in the Nahuelbuta Range, southern Chile
Ampliación del rango de distribución y nuevos antecedentes del hábitat de dos especies de ranas del género Alsodes Bell, 1843 (Amphibia, Anura, Alsodidae) en la Cordillera de Nahuelbuta, sur de Chile
 
Creator Flores Flores, Edgardo Patricio
 
Description Two frog species of the genus AlsodesBell, 1843 are currently found in the Nahuelbuta Range (southern Chile): A. barrioiVeloso, Díaz, Iturra and Penna, 1981 and A. vanzolinii(Donoso-Barros, 1974). A. barrioiis considered endemic to the Nahuelbuta Range. A. vanzolinii, by contrast, exhibit a wider geographical distribution than A. barrioiand thus, it can be also found outside of that mountain range. The present study reports an extension of the distribution range for both frogs in continental Chile. Herein, the geographical distribution of A. barrioi is extended 45 km to the north and 75 km to the south of its previously known geographical distribution (the Nahuelbuta Range). Moreover, the geographical distribution of A. vanzoliniiis extended 16 km to the north and 12 km to the south of its previously known geographical distribution. These findings demonstrate that both frog species exhibit a wider geographical distribution than previously thought. Even more important, they show that that A. barrioi is not endemic to the Nahuelbuta Range. These findings therefore suggest that it is needed to invest more efforts in identifying more populations of these frogs and in characterizing their habitats, specially if we consider the multiple threats faced by these both species.
En la Cordillera de Nahuelbuta (sur de Chile), habitan dos especies de ranas del género AlsodesBell, 1843: A. barrioiVeloso, Díaz, Iturra y Penna, 1981 y A. vanzolinii(Donoso-Barros, 1974). A. barrioi es considerada endémica de la Cordillera de Nahuelbuta, mientras que A. vanzolinii ocurre tanto dentro como fuera de esta cadena montañosa. En este trabajo, se reportan nuevas localidades para A. barrioiy A. vanzolinii. En particular, este estudio amplía la distribución geográfica de A. barrioihasta la comuna de Arauco, 45 km hacia el norte de Rucapehuén, localidad que antes representaba el límite más septentrional de su rango de distribución y hacia la comuna de Carahue, 75 km al sur de la localidad tipo estero Cabrería, localidad que correspondía al límite sur de la distribución de esta especie. Asimismo, acá se reporta la presencia de A. vanzoliniien la comuna de Arauco, 16 km al norte de su localidad tipo, y en la comuna de Cañete, 12 km al sur de su límite de distribución sur conocido (Cuyinco Alto). Estos hallazgos implican un incremento del rango de distribución de ambas especies en la Cordillera de Nahuelbuta y sugieren la necesidad de aumentar los esfuerzos para identificar más poblaciones y caracterizar sus hábitats considerando las múltiples amenazas que enfrentan ambas especies.
 
Publisher Centro de Estudios en Biodiversidad
 
Date 2018-06-01
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
 
Format application/pdf
 
Identifier http://www.biodiversnathist.com/index.php/bnh/article/view/51
 
Source Biodiversity and Natural History; Vol 4 No 1 (2018); 1-7
Biodiversity and Natural History; ##issue.vol## 4 ##issue.no## 1 (2018); 1-7
Biodiversity and Natural History; Vol. 4 Núm. 1 (2018); 1-7
0719-4986
 
Language spa
 
Relation http://www.biodiversnathist.com/index.php/bnh/article/view/51/44
 
Rights Copyright (c) 2018 Edgardo Patricio Flores Flores
https://creativecommons.org/licenses/by-nc/4.0
 

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