This is an example from Cushing's book An Introduction to Structured Population Dynamics.
The parameters initially included reproduce the bifurcation results on p. 39 of Cushing's manuscript.
The tuning parameter is b, the birthrate.
p. 37: The LPA flour beetle model.
The bifurcation diagram for parameter b is on page 39;
The bifurcation diagram for mu adult is on p. 59;
The bifurcation diagram for C pa is on p. 60.
Andy Long