In Croaking Science (July, 2022), I introduced the topic of the international trade in wildlife, and then focused on reptiles. This article is a companion piece, concentrating on amphibians. It will cover the frogs’ legs and pet trades, discussing their impact on wild amphibian populations, disease spread and amphibian welfare. As I was researching the topic, an excellent report on the frogs’ legs trade appeared (Altherr et al., 2022), and I have drawn heavily from it. Leer más.


In support of hyperoxia representing a constraint, we found that lizards transplanted to the novel oxygen environment of low elevation exhibited decreased thermal preferences and that the thermal performance curve for sprint speed shifted, resulting in lower performance at high body temperatures. While the effects of hypoxia on thermal physiology are well-explored, few studies have examined the effects of hyperoxia in an ecological context. Our study suggests that high-elevation specialists may be hindered in such novel oxygen environments and thus constrained in their capacity for downslope migration.  Leer más.


The Mediterranean Basin has experienced extensive change in geology and climate over the past six million years. Yet, the relative importance of key geological events for the distribution and genetic structure of the Mediterranean fauna remains poorly understood. Here, we use population genomic and phylogenomic analyses to establish the evolutionary history and genetic structure of common wall lizards (Podarcis muralis). This species is particularly informative because, in contrast to other Mediterranean lizards, it is widespread across the Iberian, Italian, and Balkan peninsulas, and in extra-Mediterranean regions.  Leer más.