Changing climates are affecting biodiversity and natural systems, causing extinctions, range shifts, and phenological shifts. Efforts to forecast the spatial distribution and magnitude of these effects, however, have focused ...
RojasSoto, OR; MartínezMeyer, E; Navarro Sigüenza, Adolfo Gerardo; de Ita, AO; de Silva, HG; Peterson, AT(2008)
models based on the reduced dataset indicated that the two populations occur in areas with similar ecological conditions. Our models also suggest that southern population of Sierra Madre Sparrows covers most of their ...
A list of 13 noteworthy bird species records freom the state of Tamaulipas, Mexico, is presented. Two records (Agamia agami and Aquila chrysaetos) are new for the state, and the remaining 11 extend significantly their ...
New specimens freom Sinaloa, Mexico, as well as two older specimens, show that both adult and recently fledged Lucy's Warblers (Vermivora luciae) often move far south of their breeding grounds to molt in the tropical ...
New World orioles (Icterus) include several closely related species and subspecies pairs that provide excellent opportunities for studying recent speciation. We examined a subspecies pair in the Orchard Oriole group: Orchard ...
Aim To analyse the distributional patterns of the Baja California Peninsula's resident avifauna, and to generate a regionalization based on a method that uses a parsimony analysis (parsimony analysis of endemicity, PAE) ...
Different sources of information about biodiversity may lead to unrealistic or biased estimation of its components, with different patterns according to the scale of analysis. In this study, we analyse patterns of species ...
Puebla-Olivares, F; Bonaccorso, E; De Los Monteros, AE; Omland, KE; Llorente Bousquets, Jorge Enrique; Peterson, AT; Navarro Sigüenza, Adolfo Gerardo(2008)
We analyzed genetic variation in the Emerald Toucanet (Aulacorhynchus prasinus), a species complex that ranges primarily along the montane forests of southern and eastern Mexico south to Bolivia. Segments of three mitochondrial ...
We examined geographic patterns of variation and differentiation in morphological characters of the emerald toucanets (Aulacorhynchus spp.) of Mesoamerica. Bill lengths showed flat freequency distributions, suggesting that ...
De Los Monteros, AE; RojasSoto, OR; Navarro Sigüenza, Adolfo Gerardo(2010)
The 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 ...