The relationship between phenotypic variation and landscape heterogeneity has been
extensively studied to understand how the environment influences patterns of morphological …

Resumen Cruz, FB, Moreno Azócar, DL, Bonino, MF, Schulte II, JA, Abdala, CS, Perotti, MG
2014. Clima, distribución geográfica y viviparismo en especies de Liolaemus (Reptilia; …

Although the mitochondrial diversity of Abrothrix olivacea has been widely studied, the
phylogeographic structure and the historical demography of this species are still not fully …

Even when environmental variation over time and space is commonly considered as an
important driver of population divergence, few evaluations of intraspecific genetic variation …

Background: The climatic variability hypothesis states that, as the range of climatic
fluctuation experienced by terrestrial animals increases with latitude, individuals at higher …

Phenotypic flexibility in metabolic rates allows organisms to reversibly adjust their energy
flow to meet challenges imposed by a variable environment. In turn, the food habits …

Functional traits are phenotypic characteristics that contribute to fitness of individuals in
dynamic and changing environments. In mammals, both categorical and continuous (eg …

In small mammals, marked phenotypic plasticity of digestive physiology has been shown to
make it easier for them to cope with energetically stressful periods, such as lactation. It has …

In mountain environments, both temperature and food availability vary strongly with altitude,
leading to a major challenge to the thermo‐energetic balance of organisms. In this sense …

The digestive system is one of the most reactive physiological systems to changes in
environmental conditions as a result of a trade-off between functional benefits and …