Optimized method for evaluation of bile acids from dry or ethanol preserved fecal samples as a tool for the identification of wild carnivores Údair: Salame-Méndez, Arturo, Andrade-Herrera, Moisés, Zamora-Torres, Leo, Serrano, Héctor, Soto-Mendoza, Saúl, Castro-Campillo, Alondra, Ramírez Pulido, José, Haro-Castellanos, Jorge

Is there a difference between testosterone contents in two populations of the Black Eared Mouse, living under similar conditions but with differences in population patterns? Údair: Castro-Campillo, Alondra, León-Altamirano, Liliana, Herrera-Muñoz, Joaquín, Salgado-Ugarte, Isaías, Mendieta-Marquéz, Enrique, Contreras-Montiel, J. L., Serrano, Héctor F., Ramírez-Pulido, José, Salame-Mendez, Arturo