Table 3. Summary statistics (mean in bold, standard deviation) for call parameters by call type and location.

Type		Variable	Atlantic		Pacific
Low frequency harmonic	Growl	N	41		78
		Low freq (Hz)	41.5	12.2	35.8	21.8
		Peak freq (Hz)	87.4	15.1	116	62.6
		Duration (s)	0.8	0.24	0.7	0.3
	Whup	N	21		36
		Low freq (Hz)	49.9	15.8	47.4	25.1
		Peak freq (Hz)	94.9	26.2	128	70.3
		Duration (s)	0.6	0.18	0.7	0.2
Pulsed	Droplet	N	44		29
		Low freq (Hz)	99.4	49	148	99.8
		Peak freq (Hz)	187	62.6	252	120
		Duration (s)	0.4	0.2	0.3	0.16
	Swop	N	45		16
		Low freq (Hz)	76.5	31.4	70	30
		Peak freq (Hz)	159	54.3	214	85.6
		Duration (s)	3.9	4.2	0.3	0.2
	Teepee	N	40		51
		Low freq (Hz)	40	17	214	25.1
		Peak freq (Hz)	79.2	28.8	154	70.3
		Duration (s)	1.1	1.77	0.4	0.23