Table 2.

Relative attraction of flies to model T. pruinosa calling songs. Columns are the: calling song separation, calling song (CS) levels for the two songs (S.1 vs. S.2), relative intensity difference between the two songs (ΔdB), sample size of attracted individuals (N), proportion attracted to the quieter song (P(S.2)) and comparison of the response proportions to a random response using a chi-square goodness of fit test (1 df)

Separation (meters)	CS dB SPL @ 0.10 m S.1 vs. S.2	ΔdB	N	P(S.2)	Response comparison to random, χ2 value	p
5	109 vs. 103	6	33	0.212	10.939	<0.001
5	109 vs. 106	3	33	0.242	8.758	<0.005
10	109 vs. 103	6	29	0.241	7.759	<0.01