Evaluación del potencial bioindicador de los anfibios en la laguna Cuicocha cantón Cotacachi provincia de Imbabura
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Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
PUCE - Ibarra
Abstract
El presente estudio consistió en evaluar como potencial bioindicador del ecosistema a anfibios en la Laguna de Cuicocha cantón Cotacachi provincia de Imbabura, la cual se encuentra ubicada dentro de la Reserva Ecológica Cotacachi Cayapas zona Alta, relacionada con la posible amenaza en los procesos ecológicos y evolutivos en diversos entornos naturales, pudiendo causar una afectación a la fauna anfibia la cual juega un papel importante en el medio ambiente. Se caracterizó mediante evaluación ecológica rápida las diferentes zonas de vida ubicadas alrededor de la laguna, además se realizó monitoreos de campo aplicando dos técnicas: trampas de intercepción y caída pitfall y búsqueda activa, con la finalidad de identificar las especies presentes en este ecosistema, se estableció 7 puntos de muestreo para el monitoreo de anfibios durante cuatro meses, además se registró medidas biométricas en los individuos capturados y se los marcó con elastómeros biopolímeros de colores, esta información se registró en fichas de campo conjuntamente con los datos meteorológicos además de evidenciar las condiciones en las que se encuentra su habitad. Se identificó la existencia de tres especies de anfibios: Gastrotheca riobambae 3 individuos, Pristimantis curtipes 3 individuos, Pristimantis unistrigatus 18 individuos, en total fueron registrados 24 individuos, demostrando que dos de las especies de fauna anfibia en la zona de estudio Pristimantis unistrigatus y Pristimantis curtipes están adaptadas a ambientes antropizados, no siendo el caso de Gastrotheca riobambae la cual es sensible a las perturbaciones causadas a su entorno.
The present study consisted of evaluating amphibians as a potential bioindicator of the ecosystem in the Cuicocha Lagoon, Cotacachi canton, Imbabura province, which is located within the Cotacachi Cayapas Ecological Reserve, Alta zone, related to the possible threat in the ecological and evolutionary processes. in diverse natural environments, being able to cause an affectation to the amphibian fauna which plays an important role in the environment. The different life zones located around the lagoon were characterized by rapid ecological assessment, and field monitoring was carried out using two techniques: pitfall and intercept traps and active search, in order to identify the species present in this ecosystem , 7 sampling points were established for the monitoring of amphibians during four months, in addition biometric measurements were recorded in the captured individuals and they were marked with elastomers colored biopolymers, this information was recorded in field files together with the meteorological data besides evidencing the conditions in which his habitat is found. The existence of three species of amphibians was identified: Gastrotheca riobambae 3 individuals, Pristimantis curtipes 3 individuals, Pristimantis unistrigatus 18 individuals, a total of 24 individuals were registered, demonstrating that two of the species of amphibian fauna in the study area Pristimantis unistrigatus and Pristimantis curtipes are adapted to anthropized environments, not being the case of Gastrotheca riobambae which is sensitive to the disturbances caused to its environment.
The present study consisted of evaluating amphibians as a potential bioindicator of the ecosystem in the Cuicocha Lagoon, Cotacachi canton, Imbabura province, which is located within the Cotacachi Cayapas Ecological Reserve, Alta zone, related to the possible threat in the ecological and evolutionary processes. in diverse natural environments, being able to cause an affectation to the amphibian fauna which plays an important role in the environment. The different life zones located around the lagoon were characterized by rapid ecological assessment, and field monitoring was carried out using two techniques: pitfall and intercept traps and active search, in order to identify the species present in this ecosystem , 7 sampling points were established for the monitoring of amphibians during four months, in addition biometric measurements were recorded in the captured individuals and they were marked with elastomers colored biopolymers, this information was recorded in field files together with the meteorological data besides evidencing the conditions in which his habitat is found. The existence of three species of amphibians was identified: Gastrotheca riobambae 3 individuals, Pristimantis curtipes 3 individuals, Pristimantis unistrigatus 18 individuals, a total of 24 individuals were registered, demonstrating that two of the species of amphibian fauna in the study area Pristimantis unistrigatus and Pristimantis curtipes are adapted to anthropized environments, not being the case of Gastrotheca riobambae which is sensitive to the disturbances caused to its environment.
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Keywords
Bioindicador, Rana, Monitoreo, Cuicocha