The effects of spatial and temporal heterogeneity on the population dynamics of four animal species in a Danish landscape

Table 1 Summary ANOVA tables for each species for GLMs regressing pgr against population density (log scale), weather years and squares and their interactions.

	Vole			Skylark			Beetle			Spider
	df	F	R²	df	F	R²	df	F	R²	df	F	R²
Density	1	602	0.04	1	630	0.05	1	12810	0.19	1	3036	0.15
Year	9	222	0.13	9	42	0.03	9	3283	0.43	9	276	0.12
Square	45	100	0.29	42	93	0.30	49	320	0.23	49	117	0.28
density*year	9	2	0.00	9	2	0.00	9	34	0.00	9	15	0.01
density*square	43	25	0.07	42	2	0.00	49	4	0.00	49	1	0.00
year*square	378	2	0.04	378	1	0.04	440	4	0.02	441	2	0.03
densityyearsquare	363	1	0.03	378	1	0.03	434	1	0.01	440	1	0.02
Residuals	6253			7118			7843			7774

Population density was entered as a covariate, weather years and squares as factors. Empty squares were not included in the analysis and this reduced df in some cases. R² is the proportion of variance accounted for by predictors and interaction terms.

ISSN: 1472-6785