Abstract
An apparatus has been developed for monitoring the timing and duration of cricket calling song, using a simple electronic device coupled to an Apple II microcomputer. The calling activity of up to three insects can automatically be recorded and stored to magnetic disc. An analysis program determines the percent of time spent calling for each half-hour block of a 24-hour recording period. A graphical representation of the temporal pattern of calling is also an available option. Other microcomputers can be used with minor modification of the connections, and the ancillary electronics required for this purpose are inexpensive and readily constructed.
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