The Company of Biologists

Table 3.

Mean values of sound pressure (p-p) measured at the given distances and directions (i–vi) relative to the vibrating bee

	Sound pressure (mPa) in directions i–vi
Distance (mm)	(i)	(ii)	(iii)	(iv)	(v)	(vi)	F_5,55	P
5	323.0^a	267.4^a,b	302.7^a,b	246.7^b,c	215.8^c	236.0^b,c	6.25	<0.001
10	207.1^a	190.6^a,b	199.1^a	189.1^a,b	180.2^a,b	151.0^b	3.49	0.008
15	152.0^a,b	169.6^a	169.9^a	154.8^a,b	120.9^b	124.2^b	6.51	<0.001
20	146.2^a	135.6^a	142.2^a	127.7^a,b	106.4^b,c	97.5^c	8.94	<0.001

	Sound pressure (mPa) in directions i–vi
Distance (mm)	(i)	(ii)	(iii)	(iv)	(v)	(vi)	F_5,55	P
5	323.0^a	267.4^a,b	302.7^a,b	246.7^b,c	215.8^c	236.0^b,c	6.25	<0.001
10	207.1^a	190.6^a,b	199.1^a	189.1^a,b	180.2^a,b	151.0^b	3.49	0.008
15	152.0^a,b	169.6^a	169.9^a	154.8^a,b	120.9^b	124.2^b	6.51	<0.001
20	146.2^a	135.6^a	142.2^a	127.7^a,b	106.4^b,c	97.5^c	8.94	<0.001

See Fig. 1B for details on directions i–iv

Bold letters emphasize highest measured values at the given distance

Sound pressures measured at same distances (⩾5 mm) but in different directions were compared using one-way repeated measures ANOVA(F-values given). Level for significance of difference is P_corr.⩽0.025. Values in a row that have same superscript letters did not differ significantly from each other (pairwise comparison: Tukey-test, P>0.05)

View Large

This Feature Is Available To Subscribers Only