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 GEE				binomial GLM
model	variable	estimate	s.e.	Wald	p	estimate	s.e.	Wald	p
1	intercept	4.61	1.00	21.34	<0.001	5.29	0.51	10.34	<0.001
	log10 dist	−5.12	0.72	51.02	<0.001	−5.37	0.31	−17.58	<0.001
	local den availability	0.60	0.25	5.65	0.018	0.54	0.07	7.73	<0.001
	rQG	5.32	3.13	2.88	0.090	5.12	0.80	6.43	<0.001
	local den availability × rQG	−1.53	0.74	4.21	0.040	−1.59	0.24	−6.54	<0.001
2	intercept	5.02	0.95	27.65	<0.001	5.58	0.51	10.87	<0.001
	log10 dist	−5.73	0.75	57.85	<0.001	−5.90	0.35	−17.02	<0.001
	local den availability	0.79	0.23	12.21	<0.001	0.73	0.08	9.69	<0.001
	siblings	5.38	2.29	5.50	0.019	5.22	0.58	9.03	<0.001
	local den availability × siblings	−1.44	0.48	8.95	0.003	−1.44	0.17	−8.69	<0.001