Science Workshop: Dr. Elizabeth Leininger

Evolution of neural circuits for vocal behavior in Xenopus: How my frogs got their simple calls

Dr. Elizabeth Leininger (Columbia University) will discuss how African clawed frogs (Xenopus) coordinate social interactions via species-specific underwater calls. She addressed this question in species of Xenopus that make slow, simplified advertisement (male fertility) calls. These simple calls are also the rarest type in the genus, and evolved more than once from a more complex call type. How did this occur? Using recordings from the brain and larynx, she found that two of these species (X. borealis and X. boumbaensis) make their simple calls via different modifications of the vocal circuit. She will also discuss how features of the muscle within the Xenopus vocal organ can promote differences in call rapidity across the sexes and species.

Please join us in Dickinson 225, Friday at 1:00. As always, delicious finger foods will be served.