Body condition is important because it is correlated with population and habitat quality
parameters. Since the direct measurements are either lethal or unreliable, a wide range of …

The presence of pharmaceutically active compounds (PhACs) in surface water is well
known, whereas their natural occurrence in biota is much less explored. The aim of this work …

Invasive non-native species are a major threat to global biodiversity. Often introduced
accidentally through international travel or trade, they invade and colonize new habitats …

Five life-history traits (age and size at maturity, longevity, potential reproductive life span,
age-dependent growth rate) were investigated in four Bufo viridis Laurenti, 1768 …

Rapidly changing environments impose novel selection pressures on organisms, and
sometimes adaptive phenotypic plasticity allows organisms to survive and reproduce in the …

Variable maternal provisioning may evolve when there is variation in the quality of offspring
environments. The frog Crinia georgiana has high variability in egg size both within and …

We detected 43 cases of interspecific amplexus over three years between a threatened
amphibian, Rana draytonii, and its invasive competitor and predator, Rana catesbeiana. In …

The presence of predators induces physiological stress responses in preys to avoid being
captured. A stressful situation enhances reactive oxygen species production with potential …

Amphibian declines are a global phenomenon but responses of populations to specific
threats are often context dependent and mediated by individual physiological condition …

Body condition is increasingly used to assess the status of populations and as a proxy for
individual fitness. A common, quick and non-invasive approach is to estimate condition from …