Ecological Archives E086-104-A2

Peter B. Adler, Ethan P. White, William K. Lauenroth, Dawn M. Kaufman, Andrew Rassweiler, and James A. Rusak. 2005. Evidence for a general species–time–area relationship. Ecology 86:2032–2039.

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 species–time–area 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



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