Meeting Abstract

P3-145    Repeatability and correlation among thermal traits in the lizard Anolis sagrei Yates, S.S*; Gunderson, A; Tulane University syates1@tulane.edu http://www.physiologicalecology.com/people-page

The rise in global temperatures due to climate change has the potential to substantially affect ectotherm physiology. With species now inhabiting novel climatic conditions, it is important to understand relationships among traits that are likely important for tolerating new thermal environments. In this study, we used the lizard Anolis sagrei to test the repeatability of preferred temperature among individuals and then tested for an association between heat tolerance and preferred temperature. We hypothesized that each individual lizard’s preferred body temperature would be repeatable and that individual lizards with higher heat tolerance, would have a higher preferred temperature. We found no relationship between heat tolerance and preferred temperature. We also found no repeatability of preferred temperature. Our hypotheses were therefore not supported. These results have implications for our understanding of how thermal traits are related and the methods by which thermal traits are measured.