Annual Induction of New Members
November 15, 2018
Evald 18
Augustana College, Rock Island, IL
6:30 - 7:15
7:15 - 7:30
7:30 - 8:10
Networking time, free pizza and beverage
Intro to Sigma Xi, induction of the 
new members
"Evolution of vocal circuits in Xenopus:
How my frogs got their simple calls"
Elizabeth Leininger,
Assistant Professor of Neurobiology, New College of Florida

Abstract:  How do diverse animal behaviors arise from physiological differences in the brain and target muscles? I study this question using the courtship vocalizations of African Clawed Frogs (Xenopus), whose vocalizations vary in complexity across species and between the sexes. A study of Xenopus vocal evolution revealed that the temporally simplest call type evolved more than once from a more complex call type. How did this occur? Using physiological recordings, I found that two Xenopus species achieve their simplified calls via different modifications of the vocal circuit. I will also discuss how Xenopus muscle physiology can promote vocal differences across species as well as sexes.

Reservations:  Please make your reservation using this reservation form. The deadline is 5pm on November 12th. So that we know how much pizza to order, the reservation form asks for your meal choice - yes or no. Say "yes" if you plan to come for the pizza and beverage at 6:30 pm; say "no" if you will be eating before you come. Pizza is free for new inductees! Here are the responses.

Parking is in the lot at the corner of 7th Ave and and 38th St (enter from 7th ave).  Here is the campus map. Evald Hall is Hall is on 7th Ave, next to Centennial and across from Old Main.