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Local habitat disturbance increases bird nest predation in the Brazilian Atlantic rainforest: Brief communication

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espanolEvaluamos los efectos de la perturbacion antropogena en el bosque atlantico del Brasil. Se distribuyeron nidos artificiales en fragmentos con distintos grados de perturbacion antropogena. Observamos una mayor proporcion de… Click to show full abstract

espanolEvaluamos los efectos de la perturbacion antropogena en el bosque atlantico del Brasil. Se distribuyeron nidos artificiales en fragmentos con distintos grados de perturbacion antropogena. Observamos una mayor proporcion de depredacion de huevos en el suelo y en los fragmentos clasificados como de perturbacion alta y media que en los fragmentos con un bajo grado de perturbacion. La mayor depredacion de huevos esta probablemente relacionada con una vegetacion de complejidad estructural baja y con la elevada accesibilidad de estas zonas para depredadores oportunistas. Con vistas a mantener la biodiversidad de especies de aves, proponemos que se conserven los fragmentos forestales con vegetacion de complejidad estructural elevada y escasa actividad humana. EnglishWe evaluated the effect of anthropogenic disturbance on nest predation in Brazilian Atlantic forest. Artificial nests were distributed in fragments with distinct degrees of anthropogenic disturbance. We found a higher proportion of egg predation on the ground and in the fragments classified as 'high' and 'medium' disturbance than in the fragments classified as 'low' degree of disturbance. The higher egg predation is probably linked to low structural complexity of vegetation and high accessibility of these areas to opportunistic predators. We suggest that forest fragments with high vegetation complexity and low human activity should be preserved in order to maintain the biodiversity of bird species.

Keywords: brazilian atlantic; predation; perturbacion; nest predation; disturbance; predation brazilian

Journal Title: Animal Biodiversity and Conservation
Year Published: 2018

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