Geoscience Reference
In-Depth Information
Figure 7.1
Relationship between population indices (vertical axis) and actual animal abundance
(horizontal axis). (A) From Serns (1982), (B) from Hall (1986), (C) from Rotella and Ratti (1986), (D)
from Reid et al. (1966), (E) from Easter-Pilcher (1990), (F) from Ryel (1959).
