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 96:3323–3331. 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 |