Seasonal acclimatization in newts

We studied the short- (across body temperatures) and long-term (over two consecutive years) repeatability of seasonal acclimatization on standard metabolic rate (SMR) and spontaneous locomotor activity (SLA) in two sympatric newt taxa, Ichthyosaura alpestris and Lissotriton vulgaris. We exposed the newts to various fluctuating thermal regimes over spring and summer and measured SMR and locomotor activity at three body temperatures in each individual over two consecutive years. We quantified seasonal acclimatization as standardized real (positive and negative) and absolute difference between summer and spring trait values. <br>