Table 6.

ancova of paired GUDs. Significance of terms in a linear relationship between GUDs in paired rich patches (response variable) and poor patches (predictor), analysed in separate ancova for covered and uncovered trays. Grid and stations were entered as random effects into the model. N = 113 pairs for both models

Predictor	P
	Uncovered trays	Covered trays
GUD poor patch	<0·0001	<0·0001
Grid treatment	0·27	0·13
Date	0·18	0·003
GUD poor × Grid treatment	0·42	0·48