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PubMed · 12284350

Pre-procreative ages in population stability and cyclicity.

K W Wachter
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Abstract

"Humans' protracted maturation before childbearing is an extreme example of a general characteristic of higher organisms: a positive lower bound on ages of procreation. The pre-procreative span, much discussed for its evolutionary and social ramifications, has consequences also for the mathematics of population renewal.... This paper proves the presence of a pre-procreative span sufficient, in and of itself, to guarantee the existence condition for bifurcation for all models in one important class. The class includes the best-studied examples of age-specific systems with and without homeostatic feedback in purely discrete and in purely continuous formulations."

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Age FactorsDemographyFourier AnalysisMethodsModels, TheoreticalPopulationPopulation CharacteristicsPopulation DynamicsReproductionResearchCyclic AnalysisDemographic FactorsMethodological StudiesPopulation ReplacementResearch MethodologyTheoretical StudiesWorldJournal Article

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K W Wachter. 1991. Pre-procreative ages in population stability and cyclicity.. https://doi.org/10.1080/08898489109525328

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