title: Model stability and instability in age structured populations.
mesh_terms: D000367:Age Factors; D000818:Animals; D001723:Birth Rate; D005260:Female; D005298:Fertility; D008297:Male; D008954:Models, Biological; D009026:Mortality; D011157:Population Dynamics; D011247:Pregnancy; D012098:Reproduction; D013997:Time Factors