Jackal biomass abundance x4(t) (Scale 1 = 20 metric tons) solutions to eqn 12 are plotted over a 25-year period for the parameter values given in Table S2 (Appendix S5), except as labelled in (a) for the four illustrated cases. The same applies to (b), except here the deficit stress variable v4 (Scale 1 = 10−1) is also plotted for the labelled case.