Table 3 Distribution of color morphs across sexes of the steppe grasshopper Chorthippus dorsatus, as sampled from the field for the parental generation and in the laboratory for the offspring generation.

From: Simple inheritance of color and pattern polymorphism in the steppe grasshopper Chorthippus dorsatus

 

Number of individuals

Proportion of individuals

χ2 test

Females

Males

Females

Males

Overall

χ21

P

Parental generation

Uniform brown

170

127

0.60

0.56

0.58

0.48

0.49

Dorsal green

100

92

0.35

0.41

0.38

1.47

0.23

Lateral green

4

4

0.01

0.02

0.02

0.00

1.00

Uniform green

11

3

0.04

0.01

0.03

2.16

0.14

Total

285

226

     

Offspring generation

Uniform brown

355

363

0.53

0.50

0.51

0.84

0.36

Dorsal green

263

291

0.39

0.40

0.40

0.14

0.71

Lateral green

18

26

0.03

0.04

0.03

0.68

0.41

Uniform green

39

46

0.06

0.06

0.06

0.11

0.74

Total

675

726

     
  1. χ2 test compares the ratios per color morph, given the total number of males and females in each generation.
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