Audiogram of the Mongolian gerbil (Meriones unguiculatis)
Data from: Ryan, A. (1976) hearing sensitivity of the Mongolian gerbil, Meriones unguiculatis. Journal of the Acoustical Society of America,59, 1222-1226.
Average absolute thresholds (in dB re 20 µN/m2) for thirteen gerbils
|
Frequency (in kHz) |
Average Threshold (in dB) |
|
|
.100 |
42 |
|
|
.300 |
30 |
|
|
.500 |
19 |
|
|
1 |
6 |
|
|
2 |
3 |
|
|
4 |
3 |
|
|
8 |
5 |
|
|
16 |
5 |
|
|
32 |
17 |
|
|
40 |
22 |
|
|
50 |
40 |
|
|
60 |
66 |
|
Lowest and highest frequencies audible at sound
pressure levels (SPL) ranging from 30 to 70 dB SPL
|
SPL (in dB) |
Lowest audible frequency (in kHz) |
Highest audible frequency (in kHz) |
|
70 |
— |
61 |
|
60 |
— |
58 |
|
50 |
.070 |
54 |
|
40 |
.125 |
50 |
|
30 |
.280 |
44 |
Additional Parameters:
Body weight = 65 g
Functional interaural distance= 87 µs
(Time required for sound to travel around the head from one auditory meatus to the other.)
Comments: Threshold values taken from Ryan, 1976.