Sedgwick Reserve

14 Jul, 02 PM - 14 Sep, 05 AM

I will engage in the following activities: (1) I will record male calling song for later analysis in the laboratory. Recorded males will be collected and held in individual containers to determine if they have been parasitized by a parasitoid fly that orients to male song. The parasitoids emerge from their hosts and pupate approximately 10 days after initial parasitization. Approximately 50 males will be recorded and collected. (2) I will collect approximately 40 females and ship them to my laboratory at the University of Nebraska. Most females collected in the field have already mated at least once, and these females will be used to establish a laboratory culture. Female offspring of these field-inseminated females will then be tested in the laboratory to assess the strength of their chirp rate and chirp duration preferences. (3) I will broadcast male calling song from speakers to assess the activity of the parasitoid flies. Because only a small number of males and females will be collected, the proposed research should have little long-term impact on the field cricket population at the reserve. No plant or other animal populations should be affected.

Visit #7630 @Sedgwick Reserve

Approved

Under Project # 4215 | Research

Effect of predation by phonotactic parasitoid flies on the evolution of male singing behavior in the variable field cricket

faculty - University of Nebraska

Reservation Members(s)

William Wagner Jul 14 - Sep 14, 2005 (63 days)

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