Table S2.

Number of calls from individual bats and percentage contribution to the population analysis

	Noise level	Silence	30 dB	40 dB	50 dB
Bat 1	Call number	932	910	875	768
	Percentage	24.6%	26.5%	25.6%	24.6%
Bat 2	Call number	659	535	594	407
	Percentage	17.4%	15.6%	17.4%	13.1%
Bat 3	Call number	704	604	553	577
	Percentage	18.6%	17.6%	16.2%	18.5%
Bat 4	Call number	663	620	610	564
	Percentage	17.5%	18.1%	17.9%	18.1%
Bat 5	Call number	811	714	749	749
	Percentage	21.4%	20.8%	21.9%	24.0%

Data are from experiment 1, in which either a silent sound file or 500-ms continuous noise was broadcast at different noise levels.