Ecological Archives E096-283-A3

Jesse E. D. Miller, Ellen I. Damschen, Susan P. Harrison, and James B. Grace. 2015. Landscape structure affects specialists but not generalists in naturally fragmented grasslands. Ecology 96:33233331. http://dx.doi.org/10.1890/15-0245.1

Appendix C. Table of AIC comparisons of alternative models for total species richness.

Table C1. Akaike information criterion (AIC) comparison of structural equation models for total species richness. Table shows our final model (containing proximity index, soil resource availability and time since fire) and alternative models that contain all the variables from the final model as well as one additional exogenous variable, which is listed as the “model name.” CV stands for coefficient of variation.

Model name

K

AICc

Delta_AICc

Final model

13

749.3

0

CV of bare soil cover

14

888.8

139.5

Topographic slope

14

904.5

155.2

Total herb cover

14

904.9

155.6

Mean bare soil cover

14

907

157.7

Mean rock cover

14

908.8

159.5

CV of rock cover

14

909.4

160.1

Sampling year

14

910

160.7

Quadratic time since fire

14

910

160.8

Quadratic proximity index

14

910.1

160.8


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