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Table 2 Count results of the number of pulse in three different thresholds after removing the bad data

From: Application of insect songs in monitoring population density level of Locusta migratoria migratoria (Orthoptera: Acrididae)

Density (individuals/0.5 m2) Pulse number (×103)
Threshold 0.1 Threshold 0.4 Threshold 0.7
5 1.060 ± 0.048 0.226 ± 0.011 0.0469 ± 0.0028
25 5.11 ± 0.11 1.380 ± 0.023 0.218 ± 0.068
50 10.26 ± 0.29 2.171 ± 0.062 0.416 ± 0.014
U test value Between 5 and 25 337.0 357.6 25.1
Between 25 and 50 166.1 156.3 28.6
Between 5 and 50 312.9 309.0 258.7