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Table 1 Descriptive statistics of call features measured in the advertisement calls of D. melanostictus in three localities

From: Reproductive activity and advertisement calls of the Asian common toad Duttaphrynus melanostictus (Amphibia, Anura, Bufonidae) from Bach Ma National Park, Vietnam

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)
  1. 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.