Table 1 Summary of the oviposition experiments on C. stellifer under different two-choice conditions

1

DI control vs DI control

2 (6)

12

10

3

1.0 (0.2–4.1)

0.9890

2

Field water vs DI control

2 (6)

12

9

2

0

1.0000

3

Sympatric mud vs DI control

2 (6)

12

11

6

4.4 (1.7–11.8)

0.0042

4

WTD manure vs DI control

2 (7)

14

10

4

0.4 (0.1–2.0)

0.2500

5

Moss vs DI control

2 (8–9)

17

11

11

9.3 (1.5–59.0)

0.0320

6

Combined substrates vs DI control

3 (5–6)

17

13

5

6.6 (2.3–19.2)

0.0014

7

Sympatric mud + WTD manure vs Sympatric mud

5 (5–6)

27

21

7

0.67 (0.2–2.6)

0.5700

8

Sympatric mud vs Allopatric mud

2 (6–8)

14

13

6

6.2 (2.2–19.2)

0.0007