Study Organisms

cricket fight

For the last several years the Bertram lab has been using field crickets as our model organism. Males compete for access to calling sites and then signal acoustically to attract potential mates. Males exhibit variation in many aspects of their signalling components including: sound pressure level, duration, pulse rate, number of pulses per chirp, inter-chirp intervals, percentage of missed pulses, carrier frequency, and time spent signalling each night. Female crickets discriminate between potential mates based on several signalling components and nightly signalling time, suggesting the potential for sexual selection to influence these mating signals.

Gryllus assimilis

Gryllus assimilis:
Jamaican field cricket

Gryllus texensis

Gryllus texensis:
Texas field cricket

veletis

Gryllus veletis:
Spring field cricket

Gryllus pennsylvanicus: Fall field cricket

Gryllus pennsylvanicus:
Fall field cricket

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