Our new paper on the evolutionary origins of viviparity was just published in the Journal of Experimental Zoology B! In this perspective piece, collaborator Matt Watson and I note that many of the evolutionary origins of viviparity occur at high elevations, which are cold and have lower oxygen availability. We advocate for research to study the impact of hypoxia on development of embryos and juveniles under hypoxia in both live-bearing and egg-laying species. The lizard above is Yarrow's spiny lizard (Sceloporus jarrovii), which is viviparous lizard that is found at high elevations. Check out the link to read the paper!
Our new paper on how habitat structure can impact vulnerability to climate change in slender anoles and brown anoles was just published in Biotropica! We found that habitat variability can permit behavioral compensation for a warming climate. Hence, the forest-dwelling slender anoles are more likely to be negatively impacted by a warming climate than brown anoles, which are found in habitats with greater thermal heterogeneity. Check out the link to read the paper!
We are excited to have two new collaborators and PhD students in the lab! Kelly joins us from SUNY-Binghamton, where she studied coloration of water anoles. Leah Bakewell joins the lab from Sul-Ross State University, where she earned an MS studying the immune system of red-spotted toads. Welcome to south Florida!
Our new paper on how resting metabolic rate differs between sexes differently on different islands was just published in Physiological and Biochemical Zoology! In this manuscript, we demonstrate that males from a population of brown anoles with greater male-biased sexual size dimorphism have lower metabolic rates than those from a population with less male-biased sexual size dimorphism. We then discuss the mechanisms that might underly this interesting pattern. This paper is the culmination of work that first author John David Curlis and I began in Bob Cox's lab at the University of Virginia. Check out the link to read the paper!
Our new paper on antipredator displays in ringneck snakes was just published in the journal Ethology! We found that tactile, rather than visual stimuli, induce antipredator displays in ringneck snakes. These snakes have a bright orange venter, and tactile stimuli cause them to writhe and show their venter and bottom of the tail. This work came out of a class project for the Field Herpetology class at Mountain Lake Biological Station. Check out the link to read the paper!
Our new paper on the spatial and temporal dynamics of color polymorphism in the southern cricket frog was just published in the Journal of Natural History! This work was the culmination of a couple of undergraduate research projects and a collaboration with Jeff Streicher at the Natural History Museum. We found more spatial than temporal variation in color polymorphism, and also documented variation in multiple color traits. We suggest that cricket frogs may have exuberant color polymorphism, where the variation in multiple color traits creates up to a dozen or more color morphs within a population. Check out the link to read the paper!
Collaborator Mike Logan and myself have just published a new paper on integrative biology and inferring adaptation. In this perspective paper, we argue that deeply integrative studies of only a few species can serve as a useful complement to broad comparative studies with many species. Check out the link to read the paper!
Lab alum John David just published his Master's research in Proceedings of the Royal Society B! He studied the evolution of diversity in color traits that are associated with mimicry and those that are not associated with mimicry. Great job John David!
Check out the link to read the paper.
We have just published a new paper on sex-biased parasitism in the slender anole! We found that male slender anoles have many more ectoparasites (trombiculid mites) than female slender anoles, but this pattern seem to be driven by the larger dewlap of males. Mites preferentially attach to the dewlaps of males, perhaps because of the relatively wide spacing between the gorgetal scales of the dewlap. Our work suggests that male slender anoles might pay a fitness cost (in the form of increased parasitism) for having a sexual signal.
Check out the link to read the paper: https://academic.oup.com/biolinnean/article-abstract/131/4/785/5983170?redirectedFrom=fulltext
Trombiculid mites (little white spots) on the dewlap of a male slender anole.
Our new paper on the thermal ecology of the bark centipede (Scolopocryptops sexspinosus) was just published in the Journal of Thermal Biology! This paper features the research of two talented undergraduate researchers at Georgia Southern University. Check out the link to read the paper: