Coping with Aridity: Life History of Chacophrys pierottii, a Fossorial Anuran of Gran Chaco

Authors
Marangoni, Federico; Stănescu, Florina; Courtis, Azul Celeste; Piñeiro, Jose Miguel; Ingaramo, María del Rosario; Cajade, Rodrigo; Cogălniceanu, Dan
Publication Year
2018
Language
English
Format
article
Status
Published version
Description
We studied size, age and growth in Chacophrys pierottii, a fossorial amphibian inhabiting the arid region of Gran Chaco, in Northern Argentina. We provide the first detailed demographic data for this cryptic species using skeletochronology. We observed a female-biased sexual size dimorphism, but no differences in age parameters between the two sexes. C. pierottii has a short life span of up to five years, both males and females reaching sexual maturity after one year. Our results suggest that the rapid growth to maturity, followed by a relatively short reproductive lifespan, is a response to the constraints posed by arid environments. The life-history parameters in the studied population of C. pierottii are in line with the observed patterns of other anurans inhabiting xeric habitats. Our study provides conservation managers with the basic data required for the accurate assessment of the species status and the adoption of proper conservation strategies.
Fil: Marangoni, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. Universidad Nacional del Nordeste; Argentina
Fil: Stănescu, Florina. Universitatea Ovidius Din Constanta; Rumania
Fil: Courtis, Azul Celeste. Universidad Nacional del Nordeste; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina
Fil: Piñeiro, Jose Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. Fundación Amado Bonpland; Argentina. Universidad Nacional del Nordeste; Argentina
Fil: Ingaramo, María del Rosario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. Universidad Nacional del Nordeste; Argentina
Fil: Cajade, Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. Universidad Nacional del Nordeste; Argentina. Fundación Amado Bonpland; Argentina
Fil: Cogălniceanu, Dan. Universitatea Ovidius Din Constanta; Rumania
Subject
AGE
AMPHIBIA
CERATOPHRYDAE
SEXUAL DIMORPHISM
SKELETOCHRONOLOGY
Ecología
Ciencias Biológicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/81147