Table 1.

Summaries of models of the per-day probability of a den-sharing interaction occurring between pairs of mountain brushtail possums. (The models featured a binomial response (logit link function) and were fitted by generalized estimating equations (GEEs) with pair ID as the subject (grouping factor) and a first-order autoregressive time structure. Models 2 and 3 were also fitted as logistic generalized linear models (GLMs) with observations aggregated over the 48 days for each pair.)

logistic model fitted by GEEbinomial GLM
modelvariableestimates.e.Waldpestimates.e.Waldp
1intercept4.611.0021.34<0.0015.290.5110.34<0.001
log10 dist−5.120.7251.02<0.001−5.370.31−17.58<0.001
local den availability0.600.255.650.0180.540.077.73<0.001
rQG5.323.132.880.0905.120.806.43<0.001
local den availability × rQG−1.530.744.210.040−1.590.24−6.54<0.001
2intercept5.020.9527.65<0.0015.580.5110.87<0.001
log10 dist−5.730.7557.85<0.001−5.900.35−17.02<0.001
local den availability0.790.2312.21<0.0010.730.089.69<0.001
siblings5.382.295.500.0195.220.589.03<0.001
local den availability × siblings−1.440.488.950.003−1.440.17−8.69<0.001