A mafi rigima definition na Overpopulation kamar yadda ya goyi bayan Paul Ehrlich ne a halin da ake ciki a lokacin da wani yawan jama'a a cikin aiwatar da ƙarancin nonrenewable albarkatun. A karkashin wannan definition canje-canje a salon rayuwa zai iya sa wani overpopulated yanki ba za a overpopulated ba tare da wani rage a yawan jama'a, ko kuma mataimakin versa. The lokaci mutum overpopulation yana nufin dangantaka tsakanin dukan mutum yawan jama'a da ta: da Duniya, ko zuwa karami yanayin yankunan kamar kasashe. Overpopulation iya haifar da wani karuwa a haihuwa rates, wani karuwa a cikin mutuwa rates, a cikin wani ba m shige da fice na halittu da kuma depletion na mutum albarkatun.
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