Fig IV-6. | Estimated course in population size of population Ks in 1974 |
a/c: | estimated, assuming a survival chance and a size of offspring per week, according to Table IV-7 |
d: | estimation of the population size according to a modified capture-recapture method of Fisher & Ford. The estimation is converted to a start number of 1000 in week 14. |
= adult beetles = newly emerged beetles (tenerals) |