International Scholarly Research Notices / 2013 / Article / Tab 2

Research Article

Spatial Dispersal of Douglas-Fir Beetle Populations in Colorado and Wyoming

Table 2

Analysis of variance table for regression parameter estimates for the model describing the relationship between standard dispersal distance and area infested by Douglas-fir beetle.

Dependent variable = log (SDD) = 0.296

SourceDFSum of squaresMean square valuePr >
Model42.2460.5625.770.0006
Error555.3520.097

Corrected total597.598

VariableDFParameter estimateStandard error valuePr >

Intercept (WY)1 2.6250.2799.42<.0001
Log (area)1 0.1690.0742.270.0270
Region—ECO1 0.0700.1120.620.5362
Region—NWCO1−0.2920.133−2.190.0324
Region—SWCO1−0.1660.111−1.500.1389