Ecological Archives E088-046-A2

Jason T. Hoverman and Rick A. Relyea. 2007. How flexible is phenotypic plasticity? Developmental windows for trait induction and reversal. Ecology 88:693–705.

Appendix B. Results (P values) from analysis of the effects of predator emigration at four times on snail traits. For each emigration treatment, snail phenotypes were compared to the phenotypes expressed in both constant treatments within each week after emigration.

 

Trait

 

Time of emigration

 

Constant treatment comparison

Time of comparison

 Wk 2

Wk 3

Wk 4

Wk 5

Use of structure

Wk 1

No predator

0.275

0.436

0.815

0.844

 

 

Predator

0.038

0.896

0.321

0.716

 

Wk 2

No predator

 

0.992

0.888

0.457

 

 

Predator

 

0.510

0.367

0.195

 

Wk 3

No predator

 

 

0.226

0.506

 

 

Predator

 

 

0.052

0.916

 

Wk 4

No predator

 

 

 

0.868

 

 

Predator

 

 

 

0.468

 

 

 

 

 

 

 

Mass

Wk 1

No predator

0.428

0.195

0.893

0.859

 

 

Predator

0.828

0.381

0.335

0.195

 

Wk 2

No predator

 

0.079

0.307

0.137

 

 

Predator

 

0.685

0.940

0.985

 

Wk 3

No predator

 

 

0.071

0.127

 

 

Predator

 

 

0.466

0.954

 

Wk 4

No predator

 

 

 

0.254

 

 

Predator

 

 

 

0.735

 

 

 

 

 

 

 

PC-1

Wk 1

No predator

0.157

0.556

0.797

0.746

 

 

Predator

0.012

0.005

0.001

0.023

 

Wk 2

No predator

 

0.734

0.262

0.255

 

 

Predator

 

0.002

0.005

0.385

 

Wk 3

No predator

 

 

0.001

0.148

 

 

Predator

 

 

0.928

0.579

 

Wk 4

No predator

 

 

 

0.134

 

 

Predator

 

 

 

0.616

 

 

 

 

 

 

 

Shell thickness

Wk 1

No predator

0.290

0.097

0.668

0.892

 

 

Predator

0.009

0.088

0.130

0.785

 

Wk 2

No predator

 

0.056

0.462

0.580

 

 

Predator

 

0.050

0.070

0.338

 

Wk 3

No predator

 

 

0.663

0.932

 

 

Predator

 

 

0.507

0.747

 

Wk 4

No predator

 

 

 

0.789

 

 

Predator

 

 

 

0.888



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