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Calculates either chirps per minute based on temperature or vice versa using Dolbear's law (or equivalent laws for other species)
dolbear(n = NULL, t = NULL, species = "Oecanthus fultoni")
Missing value of n or t
Chirps per minute
Temperature in Celsius
Species to use (by default Oecanthus fultoni)
dolbear(n=6) dolbear(t=25)
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