Table 4 Mean inter-individual distance and group spread (represented as maximum inter-individual distance) in two bi-female cao vit gibbon groups in China

Jul-08

25

11.0

16.3

Aug-08

273

7.4

11.7

Sep-08

221

7.6

11.8

68

4.6

7.4

Oct-08

196

8.6

13.2

121

4.3

7.4

Nov-08

175

16.8

26.2

103

4.0

7.3

Dec-08

202

11.6

17.4

Jan-09

118

9.8

14.8

116

4.4

7.5

Feb-09

192

15.0

23.5

239

9.4

15.9

Mar-09

301

11.5

18.3

300

7.8

13.0

Apr-09

133

8.6

13.3

209

5.7

9.2

May-09

84

6.8

11.2

198

8.6

13.9

Jun-09

142

15.8

25.5

344

7.3

12.1

Jul-09

126

5.7

9.5

153

6.2

10.5

Aug-09

97

6.3

11.2

313

5.1

8.5

Sep-09

201

8.6

15.3

221

4.8

8.0

Oct-09

132

5.7

9.6

162

5.9

9.3

Nov-09

98

8.9

13.8

106

11.4

18.7

Dec-09

177

13.9

22.0

223

9.0

14.3

Lean period

10.6 ± 3.5

16.8 ± 5.4

8.2 ± 2.2

13.4 ± 3.7

Fruiting period

9.7 ± 3.6

15.3 ± 5.4

5.5 ± 1.6

9.2 ± 2.4

Z

−0.610

−0.656

−2.357

−2.359

P

0.542

0.512

0.018

0.018