Center for Academic Enrichment and Outreach
University of Nevada, Las Vegas; Center for Academic Enrichment and Outreach
Las Vegas, NV
The purpose of our summer research is to compile results and trends observed in previous studies to better understand the function of auditory bullae, the variations in size and shape throughout the overlapping geographic distribution of Perognathus species, and the relationship between bullar size and climatic patterns. Our research found that there is a negative correlation between auditory bullae size and the amount of moisture in the habitat. Large and inflated auditory bullae are observed in arid and open habitats. Although there are conflicting evidence on whether or not auditory bullae inflation is directly driven by the lack of precipitation, all of the studies agreed that the dryness of the environment creates a common selective pressure that results in phenotypic convergence in geographically overlapping Perognathus species.
Auditory bullae; Climate; Morphometrics; Plasticity; Taxonomy
Animal Sciences | Life Sciences
Systematic Review on the Effects of Climate on Auditory Bullae Size in Geographically Overlapping Perognathus Species.
Available at: https://digitalscholarship.unlv.edu/lsamp_posters/2