Periodic catastrophes over human evolutionary history are necessary to explain the forager population paradox

Proceedings of the National Academy of Sciences of the United States of America Vol/Iss. 116(26) PNAS Published In Pages: 12758-12766
By Gurven, Michael D., Davison, Raziel J.


Through altering the rate of catastrophes a population experiences, it would be possible to adjust the current rapid growth of contemporary human forager groups to achieve ZPG (zero population growth) p. 12763.


Infrequent catastrophes are sufficient to drive long-term ZPG only in the slowest growing populations at highest intensity. For fast-growing populations, catastrophes would have to be of such high frequency and intensity that they would change underlying mean vital rates. Potential catastrophes include warfare, food shortages, and infectious disease. p. 12763


Test NameSupportSignificanceCoefficientTail


Variable NameVariable Type OCM Term(s)
Population GrowthDependentPopulation

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