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

"A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, México" by William Edward Duellman, is a mid-20th century scientific study that centers around the amphibians residing within the Isthmus of Tehuantepec, a vital region in Mexico from a zoological perspective. This publication seeks to create an inventory of the different amphibian species found in this specific geographical area while examining the environmental factors shaping where these creatures live. The study emphasizes the importance of the Isthmus of Tehuantepec within the bigger picture of Middle American zoogeography, referencing previous amphibian-focused research in the area, pointing out the absence of a full herpetological record, and underlining the area's value when it comes to figuring out how amphibians spread out over time. The author shares his own fieldwork experiences, starting in the 1950s, with a lot of ecological data gathered through different seasons, drawing attention to the difficulties overcome and breakthroughs made while observing amphibians in this specially diverse location.