CHDV 23249 Chapter Notes - Chapter 1: Kauai

• School: University of Chicago
• Department: Comparative Human Development
• Course: CHDV 23249
• Professor: Misha Blizardand Christina Masco

Document Summary

Abstract: field cricket of hawaii two populations; one with parasites one without. Examining songs of males (with and without parasite) these two groups differ in songs (trill-like long chirp at the beginning of each song: males with longer chirps: more likely to carry parasite this can affect sexual selection. Female orminii flies detect calling male crickets and deposit larvae on and around him. Larvae burry inside, grow, and hatch. (sexually selected signal: oceanicus (cricket). Study compared parasitized and unparasitized cricket populations (comparing songs and calling behaviors differ) trying to see if flies are attracted to a particular element of the cricket"s calling song. Both populations of crickets (parasitized and unparasitized) differ in songs as a whole: parasitized: longer songs, longer chirps, longer short chirp components. Pulse durations longer, interval between pulses were shorter. Duration of long chirp and interval pulses of the long chirp , in the context of a male"s likelihood of being parasitized.