Table 1.

Summary of extinction events pooled by selection regime. Time refers to the transfer number. The number of ancestors is the total number of unique sequences from time 1 that are still present within a given selection regime at the time stated. The number of extinctions is the number of unique sequences that have gone extinct between a time point and the time point immediately preceeding it. Cumulative extinctions are the total number of unique sequences that have gone extinct between time 1 and the time point of interest. Scaled cumulative extinctions reflect the total proportion of unique sequences present at time point 1 that have gone extinct by the time point of interest. No errors are reported as the entire populations, minus the amount used for propagation and measurements during the selection experiment, were surveyed

Treatment	Time	Number of ancestors	Number of extinctions	Cumulative extinctions	Scaled cumulative extinctions
Control	1	257	0	0	0
Control	3	175	82	82	0.319
Control	7	27	148	230	0.894
Control	11	8	19	249	0.968
Sudden	1	1074	0	0	0
Sudden	3	888	186	186	0.173
Sudden	7	106	782	968	0.901
Sudden	11	45	61	1029	0.958
Intermediate	1	1676	0	0	0
Intermediate	3	1305	371	371	0.221
Intermediate	7	113	1194	1565	0.933
Intermediate	11	36	77	1642	0.979
Slow	1	667	0	0	0
Slow	3	473	194	194	0.290
Slow	7	29	444	638	0.956
Slow	11	16	13	651	0.976