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Table 1 Quartiles of the acoustic parameters measured from the advertisement calls and their loadings on the principal components

From: Paternal kin recognition in the high frequency / ultrasonic range in a solitary foraging mammal

Acoustic parameter

Quartiles

Component loadings

 

25

50

75

Component 1

Component 2

Frequency range of modulation six

11428.00

13143.00

14286.00

.858

.096

Frequency range of modulation five

11066.00

12653.00

14286.00

.852

-.053

Max. frequency of third modulation from end

19518.50

21633.00

23306.00

.845

-.266

Max. frequency of the modulation before the end

15918.00

17714.00

20000.00

.843

-.373

Max. frequency of the second modulation from the end

17193.00

19429.00

21857.00

.835

-.371

Frequency range of modulation four

10235.50

12000.00

13714.25

.823

-.151

Frequency range of modulation seven

11228.00

13265.50

14694.00

.800

.197

Max. frequency of end modulation

14286.00

15510.00

16612.00

.799

-.246

Frequency range of the third modulation from the end

5714.75

7975.00

10428.00

.762

-.438

Fundamental frequency of the end

11719.00

13086.00

14697.00

.750

-.093

Frequency range of the third modulation

8421.00

10857.00

13143.00

.733

-.372

Duration of third modulation from the end

8.00

10.00

13.00

.718

-.037

Frequency range of the second modulation from the end

4543.25

6216.50

9316.50

.711

-.551

Fundamental frequency of the start

20325.00

23499.00

24853.75

.704

.572

Duration of the modulation before the end

7.00

9.00

13.00

.687

-.211

Duration of the second modulation before the end

7.75

10.00

12.00

.682

-.177

Frequency range of the modulation before the end

3265.75

4905.00

8164.00

.676

-.575

Duration of modulation four

11.00

13.00

14.00

.669

-.153

Duration of the end modulation

5.00

10.00

13.00

.652

-.452

Duration of modulation six

12.00

13.00

15.00

.620

-.031

Number of modulations

18.00

20.00

23.00

-.620

.057

Frequency range of the end modulation

2844.50

3844.00

6129.00

.613

-.584

Duration of modulation five

11.75

13.00

14.25

.596

-.148

Time until the turning point

36.00

42.00

53.25

-.561

.021

Frequency range of modulation two

6939.00

8496.00

11275.75

.553

-.513

Duration of modulation seven

12.00

13.00

15.00

.541

.094

Duration of modulation three

11.00

12.00

13.00

.536

-.074

Duration of modulation two

10.00

11.50

13.00

.519

-.440

Time until the call's maximum

68.75

78.50

89.25

-.434

-.127

Call duration

594.75

656.50

734.75

-.406

-.133

Duration of modulation one

8.00

10.00

11.00

.252

-.070

Peak frequency of the end

12219.50

13513.50

15997.25

.250

.107

Max. frequency of modulation three

27551.00

31143.00

33917.25

.399

.886

Max. frequency of modulation two

29478.00

32571.00

35714.00

.407

.868

Max. frequency of modulation four

26639.00

29959.00

32245.00

.481

.835

Max. frequency of modulation five

26286.00

29714.00

31020.00

.548

.779

Fundamental frequency of the turning point

21851.00

24078.50

26739.25

.345

.756

Max. frequency of modulation one

31358.75

34286.00

37143.00

.546

.752

Max. frequency of modulation six

26046.50

28775.50

30367.50

.583

.746

Max. frequency of modulation seven

25410.00

28367.00

29592.00

.574

.739

Fundamental frequency of the maximum

27466.00

31372.00

34081.75

.505

.737

Peak frequency of the maximum

27881.00

31787.00

34668.00

.128

.622

Peak frequency of the turning point

21851.00

24373.50

27197.00

.281

.561

Peak frequency of the start

20508.00

24292.00

28284.00

.120

.458

Frequency range of modulation one

4571.00

5714.00

7194.00

.301

-.391

  1. Frequency is measured in Herz and time in milliseconds. Components 1 and 2 are 37% and 22% of the variation, respectively.