Comunidad de Aves en Campos Rupestres de un Ecotono Bosque Atlántico-Cerrado:
Notas Sobre la Pérdida de Habitat y Conservación de Especies Amenazadas
DOI:
https://doi.org/10.37002/biodiversidadebrasileira.v11i1.1744Palabras clave:
Bosques nublados, bosque monodominante, estacionesResumen
El territorio brasileño tiene la segunda mayor diversidad de especies de aves del planeta. Sin embargo, las acciones humanas han influido significativamente en los entornos montañosos que albergan las principales aves brasileñas amenazadas. Por lo tanto, el objetivo de este estudio fue (i) evaluar la comunidad de aves en campos rupestres de un ecosistema montano del ecotono Bosque Atlántico-Cerrado; (ii) medir las pérdidas de áreas de campo a partir de análisis de imágenes de satélite temporales; y (iii) analizar las especies de aves amenazadas, principalmente su variación estacional. El estudio se llevó a cabo en un área ubicada en un ecosistema montano situado en una región ecotonal entre dos puntos calientes de biodiversidad global, la Mata Atlántica y el Cerrado. En los campos rupestres muestreados se registraron un total de 45 especies y 357 individuos, y las familias más representativas fueron Thraupidae y Tyrannidae. Además, identificamos una disminución en las áreas de campo rupestre por cambios en la cobertura del suelo (es decir, plantaciones de eucalipto) de 2000 a 2019 años, que correspondió a 576,27ha. Los resultados mostraron registros de tres especies amenazadas; Anthus nattereri, Coryphaspiza melanotis y Culicivora caudacuta, que no variaron entre estaciones climáticas. Enfatizamos que las aves encontradas en este estudio, especialmente las aves amenazadas, requieren prioridad de conservación debido a la pérdida de habitat.
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