While there is no doubt that climate change is affecting many organisms, some species might be more sensitive than others. Reptiles, whose body temperature depends directly on environmental temperature, may be particularly vulnerable. Scientists have now shown experimentally that lizards cope very poorly with the climate predicted for the year 2100.
In a new study, publishing in the Open Access journal PLOS Biology on October 26th, Elvire Bestion, Julien Cote and colleagues examined the consequences of a 2°C warmer climate on the persistence of populations of common lizards (Zootoca vivipara), a widespread European reptile. Their results show that many common lizard populations could disappear rapidly as a consequence of such warmer temperatures.
"Breed fast and die young" seems to be the new mantra of common lizards in the face of climate change; it is also the conclusion reached by researchers from the Station d'écologie expérimentale du CNRS à Moulis (SEEM) and the Laboratoire Evolution et Diversité Biologique (EDB, CNRS/Université Toulouse 3 Paul Sabatier/ENFA) who studied this small European reptile species.