Ecological Archives E094-207-A3

David M. Costello, Matt J. Michel. 2013. Predator-induced defenses in tadpoles confound body stoichiometry predictions of the general stress paradigm. Ecology 94:2229–2236. http://dx.doi.org/10.1890/12-2251.1

Appendix C. AIC tables for models predicting differences in tadpole stoichiometry.

Table C1. Result of AICc analysis of candidate models predicting predator-mediated differences in tadpole whole organism N:P. Each candidate model includes sibship (random effect) and a single predictor variable (fixed effect) for either size corrected measures of tadpole morphology, composite morphology measures derived from principal components (PC) analysis, or tadpole behavior.

Fixed effect

K

log L

AICc

Δ AICc

ωi

Muscle width

4

-16.36

48.73

0.00

0.54

none

3

-20.54

51.09

2.36

0.17

Body depth

4

-17.84

51.68

2.95

0.12

PC1

4

-18.55

53.09

4.37

0.06

Body length

4

-19.73

55.46

6.74

0.02

Gut length

4

-20.04

56.08

7.35

0.01

Whole mass

4

-20.26

56.52

7.79

0.01

Body width

4

-20.29

56.58

7.85

0.01

Activity

4

-20.35

56.71

7.98

0.01

Muscle depth

4

-20.36

56.71

7.98

0.01

PC3

4

-20.38

56.76

8.03

0.01

PC2

4

-20.41

56.82

8.09

0.01

Tail length

4

-20.51

57.02

8.30

0.01

Tail depth

4

-20.54

57.08

8.35

0.01

 

Table C2. Result of AICc analysis of candidate models predicting predator-mediated differences in tadpole whole organism C:P. Each candidate model includes sibship (random effect) and a single predictor variable (fixed effect) for either size corrected measures of tadpole morphology, composite morphology measures derived from principal components (PC) analysis, or tadpole behavior

Fixed effect

K

log L

AICc

Δ AICc

ωi

Body depth

4

-37.83

91.66

0.00

0.81

none

3

-43.47

96.95

5.29

0.06

PC1

4

-40.64

97.28

5.62

0.05

Muscle width

4

-41.08

98.16

6.50

0.03

Body length

4

-41.78

99.56

7.90

0.02

PC3

4

-42.42

100.84

9.19

0.01

Whole mass

4

-42.57

101.14

9.48

0.01

Body width

4

-42.61

101.21

9.56

0.01

Activity

4

-43.33

102.66

11.01

0.00

Tail depth

4

-43.34

102.69

11.03

0.00

Gut length

4

-43.42

102.83

11.17

0.00

PC2

4

-43.44

102.88

11.22

0.00

Muscle depth

4

-43.46

102.91

11.26

0.00

Tail length

4

-43.47

102.94

11.29

0.00


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