Ecological Archives E096-168-A6

Kunio Takatsu and Osamu Kishida. 2015. Predator cannibalism can intensify negative impacts on heterospecific prey. Ecology 96:15971608. http://dx.doi.org/10.1890/14-1616.1

Appendix F. Summary of the results of post hoc statistical analyses of frog tadpole traits, comparing the four experimental treatments (i.e., large-variation, large-variation giant-removal, small-variation, and no-salamander treatments).

Summary of the results of post hoc statistical analyses of frog tadpole traits, comparing the four experimental treatments (i.e., large-variation, large-variation giant-removal, small-variation, and no-salamander treatments). Significant values are in bold (significant level was adjusted using sequential Bonfferoni methods with significant value P = 0.05).

Table F1. Post hoc Wilcoxon test results for mortality of frog tadpoles on day 19–31.

Treatment

χ²1

P

Large-variation vs. Small-variation

Large-variation vs. Large-variation giant-removal

Large-variation vs. No-salamander

Small-variation vs. Large-variation giant-removal

Small-variation vs. No-salamander

Large-variation giant-removal vs. No-salamander

21.71

<0.0001

9.11

12.20

0.35

7.24

6.34

0.0025

0.0005

0.55

0.0071

0.012

 

Table F2. Post hoc Wilcoxon test results for mortality of frog tadpoles on day 31–151.

Treatment

χ²1

P

Large-variation vs. Small-variation

Large-variation vs. Large-variation giant-removal

Large-variation vs. No-salamander

Small-variation vs. Large-variation giant-removal

Small-variation vs. No-salamander

Large-variation giant-removal vs. No-salamander

24.38

<0.0001

6.69

11.57

1.87

7.13

6.23

0.0097

0.0007

0.17

0.0076

0.013

 

Table F3. Post hoc Wilcoxon test results for size adjusted body width of the frog tadpoles on day 31.

Treatment

χ²1

P

Large-variation vs. Small-variation

Large-variation vs. Large-variation giant-removal

Large-variation vs. No-salamander

Small-variation vs. Large-variation giant-removal

Small-variation vs. No-salamander

Large-variation giant-removal vs. No-salamander

33.86

<0.0001

7.53

13.72

8.85

11.95

11.37

0.0061

0.0002

0.0029

0.0005

0.0007

 

Table F4. Post hoc Wilcoxon test results for mean timing of frog metamorphosis.

Treatment

χ²1

P

Large-variation vs. Small-variation

Large-variation vs. Large-variation giant-removal

Large-variation vs. No-salamander

Small-variation vs. Large-variation giant-removal

Small-variation vs. No-salamander

Large-variation giant-removal vs. No-salamander

19.35

<0.0001

5.86

11.48

1.28

10.64

9.55

0.016

0.0007

0.26

0.0011

0.0020

 

Table F5. Post hoc Wilcoxon test results for median timing of frog metamorphosis.

Treatment

χ²1

P

Large-variation vs. Small-variation

Large-variation vs. Large-variation giant-removal

Large-variation vs. No-salamander

Small-variation vs. Large-variation giant-removal

Small-variation vs. No-salamander

Large-variation giant-removal vs. No-salamander

15.4

<0.0001

3.93

13.27

1.86

7.86

9.00

0.048

0.0003

0.17

0.005

0.0027

 

Table F6. Post hoc Wilcoxon test results for mean size at metamorphosis of the frog.

Treatment

χ²1

P

Large-variation vs. Small-variation

Large-variation vs. Large-variation giant-removal

Large-variation vs. No-salamander

Small-variation vs. Large-variation giant-removal

Small-variation vs. No-salamander

Large-variation giant-removal vs. No-salamander

34.01

<0.0001

8.37

10.88

12.38

0.61

5.93

0.0038

0.0010

0.0004

0.43

0.015

 

Table F7. Post hoc Wilcoxon test results for median size at metamorphosis of the frog.

Treatment

χ²1

P

Large-variation vs. Small-variation

Large-variation vs. Large-variation giant-removal

Large-variation vs. No-salamander

Small-variation vs. Large-variation giant-removal

Small-variation vs. No-salamander

Large-variation giant-removal vs. No-salamander

30.61

<0.0001

5.93

10.29

6.57

0.56

4.25

0.015

0.0013

0.010

0.45

0.039


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