2008
Ramírez-Bautista, A. y A. Ramírez-Pérez. 2008. Anfibios y Reptiles. En R. Ortiz-Pulido (Ed.), ¿Sabes quien vive en el PNEC? SEP, Dirección del Parque Nacional El Chico, Universidad Autónoma del Estado de Hidalgo. Pachuca, Hidalgo, México. 23 Pp.
Abundance of frugivorous birds and richness of fruit resource: is there a temporal relationship?
A BRIEF OVERVIEW OF THE HISTORY OF MEXICAN ORNITHOLOGY
Epiphyte Orchid Establishment on Termite Carton Trails
Avifauna of the Barranca de Metztitlán Biosphere Reserve, Hidalgo, Mexico
The effect of spatio-temporal variation in understanding the fruit crop size hypothesis
Frugivory by Birds in a Fragmented Landscape: Consequences for Seed Dispersal
A female Lucifer Hummingbird (Calothorax lucifer) with iridescent chin feathers