Mark Caudell|Robert J. Quinlan
Resource Availability, Mortality, and Fertility: A Path Analytic Approach to Global Life-History Variation
Washington State University|Washington State University
humans exhibit considerable diversity timing rate reproduction lifehistory theory lht suggests ecological cues resource richness survival probabilities shape human phenotypes across populations populations experiencing high extrinsic mortality due uncertainty resources exhibit faster life histories use path analytic pa approach informed lht model multiple pathways resources mortality rates reproductive behavior 191 countries resources account variance population mortality rates predicted explain variance total fertility rates results indicate resources eg calories sanitation education healthcare expenditures influence fertility rates paths communicable noncommnunicable diseases paths acting communicable disease strongly associated fertility paths noncommunicable diseases results suggest pa approach may help disaggregate extrinsic intrinsic mortality factors crosscultural analyses knowledge may useful developing targeted policies decrease teenage pregnancy total fertility rates thus issues associated overpopulation