|
Call property
|
TL (n= 9)
|
VS (n= 11)
|
ND (n= 15)
|
Total (N= 35)
|
|---|
|
Call rate (calls/min)
|
2.10 ± 0.19
|
2.21 ± 0.18
|
2.02 ± 0.16
|
2.10 ± 0.19
|
|
(1.93-2.45)
|
(1.91-2.41)
|
(1.87-2.41)
|
(1.87-2.45)
|
|
Rise time (ms)
|
238.9 ± 81.2
|
200.8 ± 98.4
|
269.9 ± 95.1
|
240.2 ± 94.9
|
|
(90.6-301.6)
|
(90.6-372.1)
|
(98.7-471.0)
|
(90.6-471.0)
|
|
Dominant frequency (Hz)
|
1312.7 ± 13.2
|
1266.7 ± 20.2
|
1302.3 ± 15.4
|
1293.8 ± 23.0
|
|
(1289.8-1321.4)
|
(1239.9-1287.2)
|
(1297.8-1308.7)
|
(1239.9-1321.4)
|
|
Call duration (ms)
|
29,082.8 ± 3357.1
|
27,710.3 ± 7251.1
|
24,674.9 ± 5858.6
|
26,722.2 ± 5909.3
|
|
(25,316-34,217)
|
(17,930-41,220)
|
(18,990-41,220)
|
(17,930-41 220)
|
|
Frequency modulation (Hz)
|
162.0 ± 52.1
|
122.7 ± 49.7
|
147.1 ± 21.8
|
143.3 ± 42.4
|
|
(89–231)
|
(66–184)
|
(121–218)
|
(66–231)
|
|
Pulse rate (pulses/s)
|
13.25 ± 3.89
|
11.46 ± 2.75
|
10.35 ± 0.72
|
11.69 ± 2.63
|
| |
(10.3-15.7)
|
(9.8-13.6)
|
(8.8-12.9)
|
(8.8-15.7)
|
- Descriptive statistics of call features measured in the advertisement calls of D. melanostictus in three localities of Bach Ma National Park, Vietnam. The mean ± 1 SD and range (minimum ~ maximum) are shown without adjusting for variation in SVL size or air temperature. TL, Truoi Lake; VS, Voi Stream; ND, Nam Dong District; N, number of adult males recorded.
