Table 1.

Overview of straightline fits to the parameter versus altitude scatter plots (figure 2). Each of the parameters from the 1983–1984 (reported in 1986) and the 2006-dataset was fitted separately with the line given by: parameter = α + β × altitude. Also reported are the coefficient of determination (r²) and the number of data points (N). When available, 95% confidence intervals are given in parentheses. The two regression lines reported for 1986 are from the digitized data (calc), and as reported in [10] (ppr).

parameter	year		α	β	r2	N
co-note	2006		1.66 (±0.03)	−0.46 (±0.05)	0.77	116
	1986	calc	1.66 (±0.02)	−0.52 (±0.04)	0.8	145
		ppr	1.67	−0.53	0.78	170
qui-note	2006		2.86 (±0.05)	−0.96 (±0.08)	0.82	116
	1986	calc	2.79 (±0.04)	−0.98 (±0.08)	0.82	149
		ppr	2.81	−1.01	0.86	131a
call duration	2006		306 (±8)	153 (±15)	0.79	116
	1986	calc	321 (±7)	148 (±13)	0.77	152
		ppr	317.51	150	0.76	131a
SVL	2006		30.1 (±1.0)	12.7 (±1.7)	0.75	74
	1986	calc	29.5 (±1.1)	15.1 (±2.0)	0.65	124
		ppr	29.23	15.3	0.65	131

^aIt is likely these values were reported incorrectly in reference [10]. They both should have been 170, the number of points reported for the co-note, rather than 131, which refers to the number of animals caught.