Table 2. Analysis of variance for corrected survival with field type (focal fields vs surrounding fields), year of sampling, and their interaction as factors.

Effect	DF	F	P
Field Type a	1, 204	0.07	0.79
Year b	2, 204	4.29	0.01
Field Type × Year	1, 204	0.01	0.93

^a Field type = focal fields vs surrounding field.

^b Year = 2015, 2016, 2017.