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30 September 2024 Herpetofauna Diversity and Habitat Use Assessment in Two Remnant Forests of Western Ecuador
Keyko Cruz-García, Andrea E. Narváez
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Abstract

The intensive land use for production (e.g., agriculture and livestock) has led to a reduction in native forests, including areas of high diversity like the Ecuadorian Chocó region. Undoubtedly, these remaining forests represent retreat sites for wildlife, especially sensitive species such as amphibians and reptiles. We sampled the herpetofauna from two remnant forests in the western region of Ecuador, which are highly impacted by human activities. Our aim was to describe diversity and ecological preferences of the herpetofauna of these remnant forests. We used active visual search to detect animals in transects along different habitats and record the characteristics of perch sites. We present an updated inventory of amphibians and reptiles for both localities, including 23 species to Pedro Franco Dávila Protected Forest and 35 species to Provincial Recreation Area Cerro De Hayas. We found significant overlap in habitat utilization between localities and a certain degree of habitat partition mainly at the microhabitat level; such segregation may allow coexistence of a representative number of species, hence the importance of protecting these forests surrounded by crops of livestock land.

El uso intensivo de la tierra para la producción (e.g., agricultura y ganadería) ha llevado a una reducción de los bosques nativos, incluyendo áreas de alta diversidad como la región del Chocó ecuatoriano. Sin lugar a duda, estos remanentes de bosque representan sitios de refugio para la vida silvestre, especialmente especies sensibles como anfibios y reptiles. Muestreamos la herpetofauna de dos bosques remanentes en la región occidental de Ecuador, áreas altamente impactadas por actividades humanas. Nuestro objetivo fue describir la diversidad y preferencias ecológicas de la herpetofauna de estos remanentes de bosque. Utilizamos la búsqueda visual para detectar animales en transectos a lo largo de diferentes hábitats, y registramos las características del sitio de la percha. Presentamos un inventario actualizado de anfibios y reptiles para ambas localidades, incluyendo 23 especies para el Bosque Protector Pedro Franco Dávila y 35 especies para el Área de Recreación Provincial Cerro De Hayas. Encontramos una superposición significativa del uso del hábitat entre las dos localidades y un cierto grado de partición, principalmente a nivel de microhábitat. Tal segregación puede permitir la coexistencia de un número representativo de especies; de ahí la importancia de proteger estos bosques rodeados de cultivos de tierras ganaderas.

Keyko Cruz-García and Andrea E. Narváez "Herpetofauna Diversity and Habitat Use Assessment in Two Remnant Forests of Western Ecuador," South American Journal of Herpetology 33(1), 1-9, (30 September 2024). https://doi.org/10.2994/SAJH-D-21-00020.1
Received: 21 April 2021; Accepted: 29 August 2023; Published: 30 September 2024
KEYWORDS
amphibians
Chocó
ecology
habitat
reptiles
strata
substrate
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