Found 1934 Hypotheses across 194 Pages (0.045 seconds)
  1. The effect of losing a mother has the strongest effect on child survival rate in very early life (5).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 2 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

    Related HypothesesCite
  2. The effect of father death on child survival will be much smaller than the effect of mother death (5).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 3 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

    Related HypothesesCite
  3. Maternal grandmothers will tend to increase child survival more than paternal grandmothers (10).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 3 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

    Related HypothesesCite
  4. Maternal grandfathers will have a greater effect on child survival than paternal grandfathers (10).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 3 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

    Related HypothesesCite
  5. The presence of grandmothers will predict lower child mortality rates (10).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 2 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

    Related HypothesesCite
  6. Grandfathers will have significantly less effect on child survival than grandmothers (10).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 3 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

    Related HypothesesCite
  7. The presence of older siblings who are potential helpers will have a positive effect on child survival (11).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 2 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

    Related HypothesesCite
  8. Survival of the maternal grandparents, rather than paternal grandparents, will be associated with grandchild survival (201).Strassmann, Beverly I. - Alternatives to the grandmother hypothesis: a meta-analysis of the associati..., 2011 - 2 Variables

    Authors conduct a meta-analysis of 17 studies that tested for an association between grandparental survival and grandchild survival in patrilineal populations. Results show that the survival of the maternal grandparents is significantly related to the survival of the grandchild. The survival of the parternal grandparents is not associated with grandchild survival. The authors compare their results to previous hypotheses that relate grandparental and grandoffspring survival and find that there results are most in line with the Local Resource Competition Hypothesis.

    Related HypothesesCite
  9. "Women avoid their parents-in-law in the same type of situation [as men do], and in addition they are likely to avoid if the mother's brother has no role to play" (313)Sweetser, Dorrian Apple - Avoidance, social affiliation, and the incest taboo, 1966 - 4 Variables

    This article examines parent-in-law avoidance in non-industrial societies. The author suggests that in-law avoidance is associated with characteristics of kinship structure, such as lineality, residence and family type. A psychological interpretation is also offered. Results support hypotheses relating to kinship structure.

    Related HypothesesCite
  10. There will be a stronger negative relationship between spousal relatedness and offspring fitness among foragers than among non-foragers. (2)Bailey, Drew H. - Fitness consequences of spousal relatedness in 46 small-scale societies, 2014 - 4 Variables

    The authors predict that fitness outcomes will be negatively associated with spousal relatedness among foragers but positively associated among non-foragers, due to the greater social benefits of intensive kinship systems among non-foragers. Support is found for this hypothesis; however, an interaction effect is discovered with inbreeding, which appears to account for the variability in these relationships independent of subsistence activity. The authors qualify this support in order to explain why the incidence of cousin-marriage in non-foraging societies is not higher.

    Related HypothesesCite