Vital rate
M1
M2
s0
P × Y
-
s1
P × Y
-
s2
P + Y
Y
2
P + Y
1) Y, 2) P
Notes: For each lower-level vital rate, the best model is indicated (M1), as well as models with some support (AIC 2) (M2). The explanatory variables are population (P) and year (Y). Interaction between population and year is denoted as P × Y.