Appendix B. Comparison of AIC values for model selection.
TABLE B1. Difference between the AIC of the best model and a sampling model and three forms of a speciestimearea relationship (see Table 1). The best model (lowest AIC) takes a value of 0. All models were based on mean species numbers at each combination of spatial and temporal scale.
Data set |
Sampling model |
Simplest model |
No interaction model |
Full model |
KS plants |
na |
-20.4 |
-16.9 |
0 |
AZ winter annual plants |
na |
-88.4 |
-49.6 |
0 |
AZ summer annual plants |
na |
-102.0 |
-79.9 |
0 |
Intertidal (CA) algae |
na |
-14.2 |
-3.4 |
0 |
Intertidal (CA) invertebrates |
na |
-35.5 |
-24.9 |
0 |
KS small mammals |
-170.5 |
-96.3 |
-82.4 |
0 |
AZ rodents |
-439.2 |
-90.5 |
-20.8 |
0 |
NTL zooplankton |
na |
-228.5 |
-30.7 |
0 |