Months

Nt

N1

N2

P1

P2

Sex ratio

χ2 1 ddl

Significance

Oct. 09

96

24

72

25

75

0.33

24

**

Nov. 09

213

62

151

29.1

70.9

0.41

37.18

**

Dec. 09

68

11

57

16.1

83.9

0.19

31.11

**

Jan. 10

216

71

14 5

32.9

67.1

0.49

25.35

**

Feb. 10

249

67

182

26.9

73.1

0.36

53.11

**

Mars. 10

220

82

138

37.3

62.7

0.59

14.25

**

Apr. 10

202

63

139

31.1

68.9

0.45

28.59

**

May. 10

161

37

124

23

77

0.29

20.86

**

Jun. 10

145

45

100

31

69

0.44

20.86

**

Jul. 10

161

52

109

32.3

67.7

0.47

20.18

**

Aug. 10

143

59

84

41.2

58.7

0.7

4.37

*

Sept. 10

108

28

80

25.9

74

0.35

25.02

**

Oct. 10

133

39

94

29.4

70.6

0.41

22.74

**