A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, México

The Isthmus of Tehuantepec, a narrow land bridge linking North and Central America, has long fascinated biologists because of its unique position between two great oceans and its varied habitats. This work brings together decades of field collections and museum specimens to present the first comprehensive inventory of the amphibians inhabiting the low‑land portion of the isthmus. Readers are guided through the geography, climate, and history that make the region a natural laboratory for studying species dispersal.

Focusing on thirty‑six confirmed frog and salamander species, the study details their physical variation, preferred environments, and how they are distributed across rainforests, scrublands, and seasonal ponds. It also offers thoughtful speculation on how past climatic shifts, especially during the Pleistocene, have shaped current patterns. While many life‑history questions remain unanswered, the book lays a solid foundation for future research and underscores the ecological richness of this often‑overlooked corridor.