Hypoxia by Altitude and Welfare of Captive Beaded Lizards (Heloderma Horridum) in Mexico: Hematological Approaches
Heloderma horridum is one of the few known venomous lizards in the world. Their populations are in decline due to habitat destruction and capture for the pet trade. In Mexico, many zoos have decided to take care of this species, most of them at altitudes greater than the natural altitudinal distribution. However, we know little […]
Seasonal and altitudinal effects on glucocorticoid metabolites in a wild primate (Theropithecus gelada)
Behavioral ecologists are increasingly adopting sophisticated non-invasive methods for measuring glucocorticoids from “excreta” because samples are easy to collect, animals are left undisturbed, and measures may be more reflective of external events than serum samples. Some of the most common predictors for hormone profiles in wild animals are seasonal changes in ecology and behavior. For […]