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Article
Luis A. Sánchez-González, Auteur ; Héctor Cayetano, Auteur ; David A. Prieto-Torres, Auteur ; Octavio R. Rojas-Soto, Auteur ; Adolfo G. Navarro-Sigüenza, AuteurThe Squirrel Cuckoo (Piaya cayana) is a widely distributed neotropical species with 14 recognized subspecies. Two parapatric subspecies are distributed in Mexico. P. c. mexicana is endemic to the seasonally dry tropical forests of western Mexico[...]
Article
Ariadna Tobon-Sampedro, Auteur ; Octavio R. Rojas-Soto, AuteurEndemic species and those with restricted distribution ranges are a priority and national responsibility for global conservation. Fuertes's Oriole Icterus fuertesi is a Mexican endemic species and is perhaps one of the least known birds in the c[...]
Article
Octavio R. Rojas-Soto, Auteur ; Michael Westberg, Auteur ; Adolfo G. Navarro-Sigüenza, Auteur ; Robert M. Zink, AuteurTiburon Island is a land-bridge island in the Gulf of California, separated from mainland Sonora by 3 km. The shallow channel (13 m) separating the island and mainland is thought to have formed 10 000 years ago. Although the majority of avian re[...]
Article
Claudio Mota-Vargas, Auteur ; Octavio R. Rojas-Soto, Auteur ; Carlos Lara, Auteur ; Citlalli Castillo-Guevara, Auteur ; Claudia Ballesteros-Barrera, AuteurDelimiting the distribution of a species is a complex task because many determining factors are difficult to assess in the field. This is important because distribution is a key factor in the decision-making process for conservation. One example[...]
Article
Octavio R. Rojas-Soto, Auteur ; Enrique Martinez-Meyer, Auteur ; Adolfo G. Navarro-Sigüenza, Auteur ; Adan Oliveras de Ita, Auteur ; Hector Gomez de Silva, Auteur ; A. Townsend Peterson, AuteurSierra Madre Sparrows (Xenospiza baileyi) are among the least known of all bird species in Mexico. Recent surveys have discovered previously unknown populations and the current known distribution of Sierra Madre Sparrows consists of two populati[...]
Article
Adan Oliveras De Ita, Auteur ; Octavio R. Rojas-Soto, AuteurThe Sierra Madre Sparrow (Xenospiza baileyi) is a highly endangered and endemic species of the highlands of south-central Mexico, where it is resident in bunchgrass (Gramineae) and adjacent marshy habitats in the southern Sierra Madre Occidental[...]
Article
Octavio R. Rojas-Soto, Auteur ; Adolfo C. Navarro-Sigueenza, Auteur ; Alejandro Espinosa De Los Monteros, AuteurThe taxonomic criteria used as bases for endangered species lists can affect conservation policy decisions. We emphasize that the use of different taxonomic units affects the baselines of such lists. Recent taxonomic reviews for the Mexican avif[...]
