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Table 1 Sociality and body size, measured as hind foot length (HFL) and condylobasal length (CBL) in males and females of 63 species of ground squirrels and the tests of sexual size dimorphism within species

From: Sexual size dimorphism in ground squirrels (Rodentia: Sciuridae: Marmotini) does not correlate with body size and sociality

Species

Sociality

HFL

CBL

References to sociality grade

  

n(M,F)

M/F ratio

F

p

n(M,F)

M/F ratio

F

p

 

Ammospermophilus harrisii

1

6,6

1.044

2.500

0.145

6,6

0.990

0.678

0.429

[19]

Ammospermophilus insularis

1

6,4

0.985

0.419

0.535

6,4

1.048

4.852

0.059

[20]

Ammospermophilus interpres

1

6,6

1.007

0.117

0.740

6,6

1.000

0.002

0.969

[21]

Ammospermophilus leucurus

1

6,6

1.020

0.636

0.444

6,6

1.023

2.183

0.170

[22]

Ammospermophilus nelsoni

 

6,6

1.042

4.032

0.072

6,6

1.012

1.556

0.241

 

Callospermophilus lateralis

1

15,15

0.982

1.013

0.323

15,15

0.995

0.251

0.620

[18]

Callospermophilus madrensis

1

3,5

1.010

0.346

0.578

3,5

0.990

0.136

0.725

[23]

Callospermophilus saturatus

1

15,15

1.027

3.944

0.057

15,15

1.037

11.526

0.002**

[23]

Cynomys gunnisoni

4

16,14

1.024

3.416

0.075

16,14

1.036

13.928

0.001**

[18]

Cynomys leucurus

2

14,15

1.011

0.118

0.734

15,15

1.038

22.521

<0.001***

[18]

Cynomys ludovicianus

5

15,15

1.038

7.591

0.010*

15,15

1.024

7.640

0.010*

[18]

Cynomys mexicanus

5

5,7

0.979

0.117

0.740

5,7

1.020

2.591

0.139

[24]

Cynomys parvidens

4

15,10

1.064

4.136

0.054

15,10

1.064

44.093

<0.001***

[25, 26]

Ictidomys mexicanus

 

9,11

1.041

2.958

0.103

9,11

1.012

0.203

0.658

 

Ictidomys parvidens

 

7,7

1.048

2.101

0.173

7,7

1.036

5.986

0.031*

 

Ictidomys tridecemlineatus

2

15,15

1.055

9.068

0.005**

15,15

1.013

1.074

0.309

[18]

Marmota baibacina

5

9,4

1.089

2.595

0.136

10,5

1.020

0.691

0.421

[27]

Marmota bobac

5

15,9

1.093

15.947

0.001**

15,11

1.033

4.604

0.042*

[27]

Marmota broweri

5

1,2

1.080

16.333

0.154

5,6

1.020

0.557

0.475

[27]

Marmota caligata

5

14,14

1.039

3.032

0.093

15,15

1.024

2.168

0.152

[27]

Marmota camtschatica

5

7,9

1.084

5.059

0.041*

15,17

1.024

2.018

0.166

[27]

Marmota caudata

5

12,8

0.978

4.136

0.054

15,15

1.023

0.974

0.332

[27]

Marmota flaviventris

4

22,23

1.066

10.125

0.003**

24,24

1.065

21.606

<0.001***

[17]

Marmota himalayana

5

4,3

1.140

5.560

0.065

14,10

1.029

2.236

0.149

[27]

Marmota marmota

5

12,6

0.978

0.644

0.434

17,10

1.007

0.240

0.628

[27]

Marmota menzbieri

5

1,2

1.028

0.870

0.522

3,3

1.023

2.638

0.180

[27]

Marmota monax

1

15,15

1.029

1.551

0.223

15,15

1.004

0.091

0.765

[17, 27]

Marmota olympus

5

3,5

1.120

4.903

0.069

7,6

1.061

14.770

0.003**

[17, 18, 27]

Marmota sibirica

5

5,5

1.107

3.974

0.081

16,16

1.060

18.914

<0.001***

[27]

Marmota vancouverensis

5

3,4

1.081

0.358

0.576

5,4

1.002

0.008

0.931

[27]

Notocitellus adocetus

 

9,7

1.026

1.553

0.233

9,7

1.014

0.581

0.459

 

Notocitellus annulatus

 

14,13

1.018

4.136

0.054

14,13

1.004

0.091

0.766

 

Otospermophilus beecheyi

2

15,15

1.074

17.659

<0.001***

15,15

1.064

12.426

0.001*

[17]

Otospermophilus atricapillus

 

8,10

1.028

1.897

0.187

8,10

1.021

1.021

0.327

 

Otospermophilus variegatus

3

14,15

1.028

2.446

0.129

14,15

1.022

3.951

0.057

[28]

Poliocitellus franklinii

1

15,15

1.056

7.736

0.010*

15,15

1.016

2.081

0.160

[18]

Spermophilus alashanicus

 

1,5

1.038

0.340

0.591

2,5

1.059

3.545

0.118

 

Spermophilus citellus

2

15,15

1.010

0.126

0.725

17,16

1.028

3.492

0.071

J. Matějů, own data

Spermophilus dauricus

 

16,15

1.051

5.067

0.032*

16,15

1.022

2.421

0.131

 

Spermophilus erythrogenys

 

15,15

1.044

5.067

0.032*

16,15

1.073

32.773

<0.001***

 

Spermophilus fulvus

3

5,9

1.029

0.336

0.573

17,15

1.032

5.431

0.027*

[29, 30]

Spermophilus major

 

15,16

1.073

4.785

0.037*

15,16

1.053

9.868

0.004**

 

Spermophilus musicus

 

16,14

1.045

2.729

0.110

16,15

1.042

9.784

0.004**

 

Spermophilus pygmaeus

2

16,15

1.073

12.634

0.001**

16,15

1.035

8.442

0.007**

[31], A.V. Tchabovsky pers. comm

Spermophilus relictus

 

6,13

0.982

0.273

0.608

6,13

0.995

0.052

0.822

 

Spermophilus suslicus

2

16,15

1.060

7.928

0.009**

16,15

1.015

0.661

0.423

A.V. Tchabovsky pers. comm.

Spermophilus xanthoprymnus

2

11,11

1.061

3.615

0.072

11,11

1.046

5.715

0.027*

[32, 33], V. Vohralík pers. comm.

Urocitellus washingtoni

 

15,15

1.038

4.395

0.045*

15,15

1.039

13.177

0.001**

 

Urocitellus armatus

2

15,15

1.014

1.101

0.303

15,15

1.021

1.868

0.183

[18]

Urocitellus beldingi

2

15,15

1.011

0.527

0.474

15,15

1.015

2.501

0.125

[18]

Urocitellus brunneus

 

7,3

1.044

1.434

0.265

7,3

1.065

11.068

0.010*

 

Urocitellus cannus

2

15,15

1.015

0.429

0.518

15,15

1.011

0.794

0.381

[17, 18]

Urocitellus columbianus

3

15,15

1.008

0.208

0.652

15,15

1.029

3.526

0.071

[18]

Urocitellus elegans

2

15,15

1.029

2.454

0.128

15,15

1.033

7.597

0.010*

[18]

Urocitellus mollis

2

15,15

1.028

1.620

0.214

15,15

1.008

0.304

0.586

[17, 18]

Urocitellus parryii

3

15,15

1.000

0.000

1.000

15,15

1.037

14.354

0.001**

[18]

Urocitellus richardsonii

2

15,15

1.073

20.956

<0.001***

15,15

1.036

7.284

0.012*

[18]

Urocitellus townsendii

2

15,12

0.993

0.629

0.472

15,12

0.986

1.658

0.210

[17, 18]

Urocitellus undulatus

 

15,18

1.040

5.592

0.024*

15,18

1.038

13.657

0.001**

 

Xerospermophilus mohavensis

1

4,2

1.036

0.629

0.472

5,6

1.008

0.757

0.407

[34]

Xerospermophilus perotensis

 

8,5

1.012

0.939

0.353

8,5

1.019

3.831

0.076

 

Xerospermophilus spilosoma

 

15,15

1.030

3.811

0.061

15,15

1.027

6.995

0.013*

 

Xerospermophilus tereticaudus

2

15,15

0.995

0.137

0.714

16,18

1.009

1.316

0.260

[18]

  1. * p < 0.05, ** p < 0.01, *** p < 0.001.