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  1. Adolescent fertility and risky environments: a population-level perspective across the lifespanPlacek, Caitlyn D. - Proceedings of the Royal Society B, 2012 - 3 Hypotheses

    This study provides the first tests of the relationships between population-level adolescent fertility rates and mortality risk at two different time points. The hypotheses are based in life-history theory, which predicts that human reproductive choices are shaped by mortality. The authors find that reproductive strategies are significantly predicted by both early (between ages 1-7) risks of mortality and current cues of mortality risk.

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  2. Sexually transmitted disease and gender roles: an index of cultural evolutionMackey, Wade C. - Cross-Cultural Research, 2007 - 1 Hypotheses

    This article examines the relationship between HIV/AIDS and several parameters of a nation’s demography, including income, mortality, labor, fertility, and homicide rates. Associations were supported by statistical tests. Regional differences are considered; Europe and the Muslim area had lower level of women’s HIV/AIDS infection. Four cultural adaptations to combat STDs are discussed.

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  3. Fertility and mode of subsistence: a phylogenetic analysisSellen, Daniel W. - Current Anthropology, 1997 - 1 Hypotheses

    This study tests for a relationship between subsistence type and fertility using phylogenetic and statistical analyses. The authors find a clear relationship between dependence on agriculture and fertility among non-permanently settled groups.

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  4. Men’s status and reproductive success in 33 nonindustrial societies: Effects of subsistence, marriage system, and reproductive strategyvon Rueden, Christopher R. - Proceedings of the National Academy of Sciences, 2016 - 2 Hypotheses

    The researchers examine associations between male status and various measures of reproductive success among foraging/non-foraging, and monogamous/polygynous societies in order to test the "egalitarian hypothesis" which predicts lower status effects in hunter-gatherer groups. Contrary to this hypothesis, they find that male social status is equally significantly associated with reproductive success in foraging and nonforaging societies. Additional support is found for the "mating effort" hypothesis, which predicts that male reproductive success will be more associated with fertility than offspring mortality in polygynous societies, leading the authors to make various suggestions regarding the evolutionary mechanisms at play.

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  5. Male contribution to diet and female reproductive successMarlowe, Frank W. - Current Anthropology, 2001 - 3 Hypotheses

    This article seeks to understand male-female bonding by testing the relationship between male contribution to subsistence (a proxy for male provisioning) and female reproductive success in foraging societies. Analysis supports a positive association.

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  6. Fertility and the ploughAlesina, Alberto - The American Economic Review, 2011 - 2 Hypotheses

    The researchers examine Boserup's (1970) theory that variation in traditional agricultural practices shape gender roles by examining the relationship between historical plough use and contemporary fertility rates and preferential attitudes towards fertility. Contrary to expectation, tests show a negative relationship between plough use and both of these variables. The authors theorize that since children are less capable of performing the intensive labor required by plough agriculture compared to hoe agriculture, adoption of the plough deincentivized increased fertility and reduced its value among agriculturalists.

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  7. On the relationship between country sex ratios and teen pregnancy ratesBarber, Nigel - Cross-Cultural Research, 2000 - 3 Hypotheses

    This study attempted to replicate earlier findings regarding population structure and teen pregnancy rates. Findings support the previous predictions that sex ratio, economic development, and latitude are all inversely related to teen birth rates.

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  8. Traditional agriculture practices and the sex ratio todayAlesina, Alberto - PLoS ONE, 2018 - 1 Hypotheses

    This study investigates the relationship between historical utilization of the plow and modern sex ratios. The authors argue that in societies without the plow subsistence is generally egalitarian with both men and women contributing. However, the use of the plow requires more physical strength which, they argue, leads to a preference for boys and, thus, men. Therefore, in cultures that use the plow, this is reflected in male-biased sex ratios which are negotiated by way of practices like sex-selective abortions, infanticide, and/or differential access to resources based on sex.

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  9. A Cross-Cultural Summary: FertilityTextor, Robert B. - , 1967 - 4 Hypotheses

    Textor summarizes cross-cultural findings on polygyny pertaining to cultural, environmental, psychological, and social phenomena.

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  10. The relative decline in women’s contributions to agriculture with intensificationEmber, Carol R. - American Anthropologist, 1983 - 8 Hypotheses

    This article presents theory and hypothesis tests that suggest that the decline of women's contribution to intensive agriculture is related to increases in fertility and domestic work associated with cereal crops. Additionally, men in agricultural societies are less likely to invest time in hunting and warfare, so their contribution of agricultural labor relative to women's increases.

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