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Ver términos de la licenciaMedina Estrada, Jannete, et al. (2022). Nesting resource availability for cavity adopter birds in a tropical dry forest of Central Mexico. Revista Mexicana de Biodiversidad; Vol. 93, 2022. Recuperado de https://repositorio.unam.mx/contenidos/4128985
Autor(es)
Medina Estrada, Jannete; Remolina Figueroa, Daniela; Ramírez Bastida, Patricia; Vázquez Reyes, Leopoldo D.
Tipo
Artículo de Investigación
Área del conocimiento
Biología y Química
Título
Nesting resource availability for cavity adopter birds in a tropical dry forest of Central Mexico
Fecha
2022-02-16
Resumen
Nesting resources for cavity-adopter birds commonly have spatial aggregation patterns within tropical dry forests. Spatial aggregation occurs because large trees, carrying large cavities, are restricted within small semideciduous forest areas. In contrast, deciduous forests occupy most of the coverage with smaller trees and cavities. Consequently, semideciduous forest loss could imperil cavity-adopter birds with large bodies. To test this hypothesis, we performed an intensive search in a tropical dry forest in Central-Mexico. We survey five 0.2 Ha transects in both deciduous and semideciduous forest, totalizing a survey of 2 Ha. There were no differences in resource density between deciduous (4 ± 6.51 cavities/Ha) and semideciduous forest (11 ± 6.51 cavities/Ha). However, semideciduous forest cavities had wider entrances and were in larger trees. Besides, 90% of nesting resources for birds with bodies > 6 cm were restricted within the semideciduous forest, including Megascops seductus, an endemic owl, and Ara militaris, a threatened macaw. Bird-excavated cavities were associated with deciduous forest and Pachycereus weberi cacti. In contrast, decay cavities were associated with semideciduous forest and Enterolobium cyclocarpum trees. Our results suggest that the conservation of large-bodied cavity-adopter birds within dry forest depends on semideciduous forest coverage.
Tema
Neotropics; nesting resources; secondary cavity nesters; tree cavities; tropical dry forest
Idioma
eng
ISSN
ISSN electrónico: 2007-8706; ISSN impreso: 1870-3453
