Nestling mortality as a consequence of interspecific competition between secondary cavity-nesters in the sub-Antarctic forests of Chile

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• Título: Nestling mortality as a consequence of interspecific competition between secondary cavity-nesters in the sub-Antarctic forests of Chile
• Autor: Botero Delgadillo, Esteban
• Publicación original: The Wilson Journal of Ornithology; Vol. 127, No. 1, 2015
• Descripción física: PDF
• Nota general:
  • Chile
• Notas de reproducción original: Digitalización realizada por la Biblioteca Virtual del Banco de la República (Colombia)
• Notas:
  • Resumen: Interspecific competition among secondary cavity nesters can involve physical conflicts between individuals, which may lead to serious injuries or death. Here we report a case of aggression by a pair of Chilean Swallows (Tachycineta meyeni) towards a nestling of the Thorn-tailed Rayadito (Aphrastura spinicauda) in the sub-Antarctic forests of Chile. This aggression caused the displacement of the breeding rayaditos from an occupied nest box and it appears, nestling mortality. Since levels of aggression among cavity nesters depend on the synchrony of their breeding phenologies, further research is needed to study the prevalence of nest usurpation by Chilean Swallows and its relation to the degree of breeding synchrony with other cavity nesters inhabiting the sub-Antarctic forests.
  • Resumen: Aphrastura spinicauda; Interspecific aggression; Nest box; Nest-site competition; Nestling mortality; Tachycineta meyeni
  • © Derechos reservados del autor
  • Colfuturo
• Forma/género: texto
• Idioma: inglés
• Institución origen: Biblioteca Virtual del Banco de la República
• Encabezamiento de materia:
  • Ciencias naturales y matemáticas; Ciencias naturales y matemáticas / Ciencias de la vida Biología; Ciencias naturales y matemáticas / Ciencias de la vida Biología / Ecología