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Abstract
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Keywords:
AgricultureAmericasBehaviorBirth RateCanadaComparative StudiesCross-cultural ComparisonsCultural BackgroundCultureDemographic FactorsDeveloped CountriesDeveloping CountriesEcologyEconomic FactorsEnvironmentEthnic GroupsFertilityFertility MeasurementsMelanesiaNorth AmericaNorthern AmericaOceaniaPapua New GuineaPopulationPopulation CharacteristicsPopulation DynamicsReproductive BehaviorResearch MethodologySeasonal VariationSex BehaviorSocioeconomic FactorsStudiesTabooTime Factors