What characteristic essential for larval development did the Wyoming toad rely on in the Laramie Basin?

Answer

Ephemeral wetlands and temporary ponds.

The evolutionary history and habitat specialization of the Wyoming toad, *Anaxyrus baxteri*, made it extremely vulnerable because its survival was intrinsically linked to specific hydrological conditions. The text emphasizes that the species historically favored sand prairies and sagebrush flats interspersed with ephemeral wetlands. These shallow, temporary water bodies were not just preferred but were essential components of their life cycle, specifically required for the toads to complete their larval development stage before metamorphosis into adults. This tight ecological coupling to specific hydroperiods meant that any significant human alteration, such as wetland drainage for agriculture, directly undermined the species' ability to reproduce successfully.

What characteristic essential for larval development did the Wyoming toad rely on in the Laramie Basin?
animalevolutionToad