Based on thermal constraints, as deduced from the effects of global warming on key aspects of thermal biology (e.g. field and laboratory temperatures, and thermoregulation indices; after Hertz et al., 1993), Dr. Piantoni and Dr. Navas from the University of São Paulo, Brazil, and Dr. Ibargüengoytía from the University of Comahue, Argentina, assessed the vulnerability of a sample of populations from the genera Anolis, Liolaemus, Sceloporus, and Tropidurus from a broad range of ecological settings such as the deserts of Yucatan, the Brazilian Cerrado, the lowlands of southern Patagonia steppe, the rainforests of Puerto Rico and the Nothofagus forests in Tierra del Fuego. Leer más.

Pereira, R.J.; Martínez-Solano, I. y Buckley, D. Molecular Ecology, Accepted manuscript online: 6 February 2016. our results suggest that, while some genomic regions, such as the mitochondria, may follow morphologic species traits and retreat to isolated mountain tops, other genomic regions, such as nuclear markers, may flow across parapatric boundaries, sometimes leading to a complete genetic merger. We show that despite high ecologic and morphologic divergence over prolonged periods of time, hybridization allows for evolutionary outcomes alternative to extinction and replacement of taxa in response to climate change. Leer más.

Moisés E. Domínguez-López; Francisco J. Diego-Rasilla and Ángela M. Ortega-León. Animal Biology. 2016. The findings indicate that refuge abundance and distance to the nearest potential refuge influence escape behaviour of G. albogularis. In addition, we found sex differences in escape behaviour which are not explained by microhabitat use. Females had longer flight initiation distance but shorter distance fled, and longer final distances than males. Leer más.

In this study, we present the most comprehensive overview of the evolutionary history of the North African salamander Salamandra algira (Caudata, Salamandridae) to date, including analyses of climatic and topographical variables, and sequences of two mitochondrial and two nuclear DNA fragments, with a special focus on Algerian populations, under-represented in previous studies. Leer más.

Rising global temperatures may skew gender imbalance among the marine turtle population, according to new research. The sex of marine hatchlings is influenced by incubating temperatures, and warmer temperatures produce a higher number of female hatchlings. Leer más.