Occupancy and probability of detection of the introduced population of Eleutherodactylus coqui in Turrialba, Costa Rica

 

Guardado en:
Detalles Bibliográficos
Autores: Barrantes-Madrigal, Jimmy, Spínola-Parallada, Manuel, Alvarado, Gilbert, Acosta-Chaves, Víctor José
Formato: artículo
Fecha de Publicación:2022
Descripción:The Puerto Rican Common coqui frog (Eleutherodactylus coqui) has a long history as an invasive species in places such as Hawaii. Since its introduction in Costa Rica, scarce information is available to understand why and how the habitat in the Turrialba town is suitable for the species. Our goal was to analyze the habitat selection of E. coqui to identify if there are key habitat features that explained its success there. We measured 9 site variables that may affect the habitat selection of E. coqui in 92 survey units of 10 m radius distributed over a 500 m radius from its introduc-tion point. We registered the presence/pseudo-absence data of E. coqui and environmental variables in each survey unit during eight surveys. We ran occupancy models to determine the influence of the variables on the habitat selec-tion and to estimate its detection probability. We found that sites near the introduction point, containing abundant vegetation, bromeliads, and palms have a higher probability to be occupied by E. coqui. The habitat selection in Costa Rica shares characteristics with the populations of Puerto Rico and Hawaii. But, unlike the case in Hawaii, in Costa Rica this species has maintained a limited dispersal because the potentially higher biotic resistance, as well a sedentary behavior. However, the microhabitat conditions used by E. coqui in the study site are common throughout the coun-try. Therefore, active management in new populations and environmental education programs to avoid human trans-portation of the species is critical to reduce its dispersal.
País:Repositorio UNA
Institución:Universidad Nacional de Costa Rica
Repositorio:Repositorio UNA
Lenguaje:Inglés
OAI Identifier:oai:null:11056/27953
Acceso en línea:http://hdl.handle.net/11056/27953
https://doi.org/10.36253/a_h-13209
Palabra clave:ANFIBIOS
CONSERVACIÓN
ESPECIES INTRODUCIDAS
COMPORTAMIENTO ANIMAL
INTRODUCED SPECIES
ECOLOGÍA ANIMAL
AMPHIBIANS
CONSERVATION
ANIMAL BEHAVIOR
ANIMAL ECOLOGY