Tradeoffs have played a prominent role in the development of theories describing the
evolution of reaction norms. Different classes of tradeoffs are known to constrain the …

Despite decades of research on the evolution of thermal physiology, at least one
fundamental issue remains unresolved: whether the maximal performance of a genotype …

We extend methods of quantitative genetics to studies of the evolution of reaction norms
defined over continuous environments. Our models consider both spatial variation (hard and …

Thermal performance curves are an example of continuous reaction norm curves of common
shape. Three modes of variation in these curves—vertical shift, horizontal shift, and …

Understanding the evolution of reaction norms remains a major challenge in ecology and
evolution. Investigating evolutionary divergence in reaction norm shapes between …

Body temperature influences the performance and fitness of ectotherms. How thermal
sensitivity responds to selection for resistance to high temperature is broadly relevant in …

Question: Associations of body size and of body temperature with fitness have complex
relationships for ectotherms, but three general patterns are known. Bigger is better: Larger …

Constraints have important effects on the evolution of life history strategies, but several
difficulties have been encountered in determining constraints empirically. Here we …

Temperature profoundly impacts both the phenotypes and distributions of organisms. These
thermal effects exert strong selective pressures on behaviour, physiology and life history …

Ecological speciation is defined as the emergence of reproductive isolation as a direct or
indirect consequence of divergent ecological adaptation. Several empirical examples of …