Audiogram of the white-tailed prairie dog (Cynomys leucurus)
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Data from: Heffner, R.S., Heffner, H.E., Contos, C., and Kearns, D. (1994) Hearing in prairie dogs: Transition between surface and subterranean rodents. Hearing Research, 73, 185-189.
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Absolute thresholds (in dB re 20 µN/m2) for one white-tailed prairie dog
|
Ìý Frequency (in kHz) |
Ìý Threshold (in dB) |
Ìý |
| Ìý | ||
|
.032 |
75 |
Ìý |
|
.063 |
44 |
Ìý |
|
.125 |
35 |
Ìý |
|
.250 |
29 |
Ìý |
|
.500 |
24.7 |
Ìý |
|
1 |
26 |
Ìý |
|
2 |
33 |
Ìý |
|
4 |
28 |
Ìý |
|
8 |
24 |
Ìý |
|
16 |
39 |
Ìý |
|
22.4 |
39 |
Ìý |
|
32 |
86 |
Ìý |
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 |
.036 |
28 |
|
60 |
.044 |
26 |
|
50 |
.054 |
24.3 |
|
40 |
.084 |
22.7 |
|
30 |
.220 |
10.5 |
Additional Parameters:
Body weight = 900 g
Functional interaural distance= 120 µs
(Time required for sound to travel around the head from one auditory meatus to the other.)
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Comments: Threshold values taken from original data