Table 1.

Parameter values used to compute model SFOAEs in gecko and alligator lizard. Values for alligator lizard (see Sec. 5B) are listed only when they differ from gecko.

		Gecko	Alligator lizard
Papilla length	L	1.7 mma	0.3 mmb c d, 1n3, d
Papilla area	A	0.15 mm2c	0.04 mm2c
Papilla resonant frequency	fp	1.5 kHze	2 kHzf
Papilla quality factor	Qp	2e	0.5f
Papilla volume compliance	Cp	0.57×10−6 mm3∕Pa g
Papilla stiffness	Kp	A2∕Cp
Papilla aspect ratio	h∕r	1.0c h, h	1.0j
No. of bundles (rows)	N	250h	130b c d, 1n3, d
Maximum bundle CF	CFmax	5 kHza	6 kHzb j, j
Tonotopic map space constant	ℓ	0.5 mma	0.16 mmb c d, 1n3, d
Bundle Q10 dB (at 1 kHz)	Q10 dB	2.3a	1.1b
Q10 dB power-law exponent		0.35a	0.55b
Bundle stiffness	kn	Kp∕N
Irregularity size	rms(ϵn)	0.03 (or 3%)
Round-trip middle-ear gain	Gme	0.25g
Stimulus pressure	P	20 dB SPLk

^aManley et al. (1999).

^bWeiss et al. (1976).

^cWever (1978).

^dManley (1990).

^eChiappe (2006).

^fPeake and Ling (1980).

^gRosowski et al. (1985).

^hKöppl and Authier (1995).

ⁱMulroy(1974).

^jInferred from SFOAE magnitudes, which fall off above about 6 kHz in alligator lizard.

^kBergevin et al. (2008).