Diversidad y preferencias de hábitat por parte de la avifauna en áreas antropizadas urbanas como antecedente para evaluar los efectos de la futura construcción de la Avenida Longitudinal Occidental Sur (ALO-Sur)

Abstract

This study aims to characterize the avifauna of a peri-urban area in the El Tintal neighborhood of Bogotá and to provide baseline information relevant to the projected construction of a highway that would cross the city from south to north along its western edge, parallel to the Bogotá River. Such infrastructure poses a threat to ecological connectivity and habitat quality in the surrounding areas. The main objective was to assess the diversity and habitat preferences of bird species within a small section of the area to be impacted, as well as its adjacent recovering zones. Bird monitoring was conducted between July 2024 and February 2025 through visual and auditory identification at fixed points and transects designed to represent the area’s habitat types. The Manly selection index was employed to evaluate habitat preference. A total of 72 bird species were recorded, including a notable presence of raptors, indicative of a healthy ecosystem. Additionally, key habitat areas for local avifauna were identified. The findings underscore the ecological importance of these peri-urban green spaces, which play a critical role in sustaining the ecological functions and biodiversity of urban environments