We document patterns of species richness and endemism in an elevational gradient (300 to 2 800 m) located in the Espinazo del Diablo region (states of Durango and Sinaloa), as well as its significance for the conservation ...

The aquatic birds of Mexico include both a rich fauna of residents and a significant proportion of migratory species that breed in Canada and the United States, yet their distribution and richness patterns remain poorly ...

We present a list of noteworthy distributional records for 12 species of birds in the Mexican state of Guerrero. One (Dendroica striata) is new for the state, and the remaining either significantly expand their known ...

A new species of swift (Cypseloides storeri) is described and given the English name Whitefreonted Swift. It apparently is most closely related to C. cryptus of Central America and northern South America. It is known freom ...

within the latter, the southernmost clade (Oaxaca to Central America) is sister to the Transmexican Volcanic Belt clade. Four major clades are clearly distinguished: H. simulatus freom the Sierra Madre Oriental and the ...

and (ii) the derived state of the breeding (rather than winter) ecological niches of each species.

Cloud forests are distributed in the Neotropics, freom northern Mexico to Argentina, under very specific ecological conditions, namely slopes with high humidity input freom clouds and mist. Its distribution in Mesoamerica ...