Table 1.

Multifactor ANOVA of number of germinating seedlings from seed core experiments

Source	Sum of squares	d.f.	Mean square	F ratio	P value
Main effects
Years extinct	5·21	4	1·30	5·94	0·0005
Core position	0·18	2	0·07	0·31	0·7321
Interaction
Years extinct × core position	0·48	8	0·06	0·27	0·9721
Residual	11·83	51	0·22
Total (corrected)	17·19	65

Core position refers to the three positions in each site from which soil cores were excavated (see text).