Fig 6. Buzzing and calling rates as a function of location for females Thora and Eistla.

Locations devoid of buzzes or calls are shown as white circles. Locations with associated sound production are shown with increasingly darker and larger symbols, in a red color scheme for buzzes [panels (A) and (B)] and a blue color scheme for calls [panels (C) and (D)]. The three sound production categories were limited by the 33^rd and 66^th percentiles of the buzzing or calling rate for each female, with Low < 33^rd percentile, Medium > 33^rd and ≤ 66^th percentile, and High > 66^th percentile. These percentiles were as follows—Thora (left panels): 33^rd = 0.39 buzzes / min and 0.22 calls / min, 66^th = 0.96 buzzes / min and 0.64 calls / min; Eistla (right panels): 33^rd = 0.69 buzzes / min and 0.10 calls / min, 66^th = 1.01 buzzes / min and 0.33 calls / min.