Time delayed recordings?

The Froglogger comes from the natural history world. The system described by Peterson & Dorcas (1994), and now commonly known as a Froglogger, enables the researcher to record audio, without supervision, for later analysis. This enables the monitoring of animal calls during intervals and long periods of time that would be impossible for a person or too expensive. For example, you can record a few minutes every hour during several days or weeks.

As an example of the important and valuable information that can be obtained only by using a Froglogger is the paper by Bridges and Dorcas (2000). They found that Rana sphenocephala, which was described previously as calling during early spring and early fall, was also very active calling during the summer, but between 2:00 and 5:00.


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