Responsibilities: Conduct research on conservation of amphibians in agricultural landscapes. The study will be carried out under the direction of scientists from the U.S. Geological Survey-Iowa Cooperative Fish and Wildlife Research Unit and Iowa State. Leer más.

“When we save the frogs, we’re protecting all our wildlife, all our ecosystems and all humans.” Leer más.

A species may be listed as critically endangered while some populations within its ranks are thriving and some are probably beyond saving. Leer más.

The largest reptile in North America, the iconic American alligator (Alligator mississippiensis) is considered to be a living fossil, having survived on Earth in the same form for 200 million years (2) (4). The name ‘alligator’ derives from the Spanish ‘el lagarto’ meaning ‘the lizard’, while the species name means ‘of the Mississippi’ (5). Though often confused with various crocodile species, the American alligator can be distinguished by its rounded snout, and by the fact that when the jaws are closed, none of the lower teeth are visible (6). Leer más.

Although native enemies in an exotic species’ new range are considered to affect its ability to invade, few studies have evaluated predation pressures from native enemies on exotic species in their new range. The exotic prey naiveté hypothesis (EPNH) states that exotic species may be at a disadvantage because of its naïveté towards native enemies and, therefore, may suffer higher predation pressures from the enemy than native prey species. Leer más.