Ecological Archives E094-207-A2

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 B. Table of PCA loadings for tadpole morphology.

Table B1. Loadings (i.e., eigenvalues) for principal components analysis of the seven measure tadpole morphology variables. The first three principal components (PC) explained 74% of the total variation in the data. Bolded values indicate non-trivial loadings that were significant different from 0 (bootstrapped (1000 resamples) 95% confidence intervals).

 

Loadings

Variable

PC1 (35%)

PC2 (20%)

PC3 (19%)

Body length

-0.16

0.21

0.68

Body depth

0.56

0.00

-0.08

Muscle depth

0.07

-0.59

0.47

Tail depth

-0.12

-0.55

-0.47

Tail length

-0.45

0.37

-0.11

Body width

0.45

0.41

-0.18

Muscle width

-0.49

0.02

-0.21


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