Jarrett Johnson

I am interested in amphibian population genetics and conservation. Currently, I am investigating the genetic structure of a Hyla versicolor metapopulation, using simple sequence repeat (SSR) markers. This research will provide data on typical dispersal distances and the frequency of dispersal between natural subpopulations. Understanding metapopulation dynamics has important conservation implications as habitat is fragmented and destroyed. Soon, I will be constructing artificial pond arrays to test dispersal under varying conditions. I will use the SSR markers to track movement between the artificial ponds over several generations. As I determine the dispersal tendencies of Hyla versicolor, I will be able to suggest appropriate methods for conserving natural amphibian populations. I plan to expand this research to include other species, such as Ambystoma maculatum, and Rana sphenocephala.

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