Term of Award
Master of Science in Biology (M.S.)
Document Type and Release Option
Thesis (open access)
Department of Biology
Committee Member 1
Committee Member 2
Effectively moving across variable substrates is important to all terrestrial animals. Much attention has been given to the effects of different substrates on locomotor performance in an attempt to link ecology and morphology. Sprint sensitivity is the decrease in sprint speed due to change in substrate. This study measures sprint sensitivity to substrate rugosity among six lizard species that occupy rocky, sandy, and/or semi-arboreal habitats. Lizards that use rocky habitats are less sensitive to changes in substrate rugosity, followed by arboreal lizards, and then by lizards that use sandy habitats. Phylogenetic analysis suggests that using rocks is highly correlated with decreased sprint sensitivity, long toes, and wide bodies. These results are discussed in the context of the adaptive significance of substrate selection, stability, and the evolution of sprint speed.
Collins, Clint Edward, "Home Field Advantage: Sprint Sensitivity to Ecologically Relevant Substrates in Lizards" (2012). Electronic Theses & Dissertations. 761.