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Human Nature: An Interdisciplinary Biosocial Perspective

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https://www.readbyqxmd.com/read/28214982/who-supports-breastfeeding-mothers-an-investigation-of-kin-investment-in-the-united-states
#1
Jayme Cisco
Breastfeeding is one important form of maternal investment that is influenced by support from kin and non-kin. This paper investigates who provides support for breastfeeding mothers and their children, what type of support they provide, and how support impacts breastfeeding duration. The data were derived from a survey of 594 American mothers and were analyzed using quantitative methods, including Cox regression. Analyses indicate that mothers receive significant support, particularly from spouses and maternal grandmothers...
February 18, 2017: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/28205120/establishment-of-legal-paternity-for-children-of-unmarried-american-women-trade-offs-in-male-commitment-to-paternal-investment
#2
Kermyt G Anderson
The establishment of a legal father for children of unmarried parents reflects both high paternity confidence and male willingness to commit to paternal investment. Whether an unmarried man voluntarily acknowledges paternity after a child is born has important consequences for both the mother and child. This paper brings to bear a life history perspective on paternity establishment, noting that men face trade-offs between mating and parental effort and that women will adjust their investment in children based on expected male investment...
February 15, 2017: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/28124279/going-home-how-mothers-maintain-natal-family-ties-in-a-patrilocal-society
#3
Gretchen Perry
Humans have been called "cooperative breeders" because mothers rely heavily on alloparental assistance, and the grandmother life stage has been interpreted as an adaptation for alloparenting. Many studies indicate that women invest preferentially in their daughters' children, but little research has been conducted where patrilocal residence is normative. Bangladesh is such a place, but women nevertheless receive substantial alloparental investment from the matrilateral family, and child outcomes improve when maternal grandmothers are alloparents...
January 25, 2017: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/28074406/testosterone-and-jamaican-fathers-exploring-links-to-relationship-dynamics-and-paternal-care
#4
Peter B Gray, Jody Reece, Charlene Coore-Desai, Twana Dinall, Sydonnie Pellington, Maureen Samms-Vaughan
This paper investigates relationships between men's testosterone and family life in a sample of approximately 350 Jamaican fathers of children 18-24 months of age. The study recognizes the role of testosterone as a proximate mechanism coordinating and reflecting male life history allocations within specific family and cultural contexts. A sample of Jamaican fathers and/or father figures reported to an assessment center for an interview based on a standardized questionnaire and provided a saliva sample for measuring testosterone level...
January 10, 2017: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27966200/review-of-demography-and-evolutionary-ecology-of-hadza-hunter-gatherers-by-nicholas-blurton-jones-cambridge-university-press-2016
#5
Monique Borgerhoff Mulder
No abstract text is available yet for this article.
December 13, 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27966199/review-of-john-cartwright-s-evolution-and-human-behaviour-darwinian-perspectives-on-the-human-condition-london-palgrave-macmillan-2016
#6
Peter B Gray
No abstract text is available yet for this article.
December 13, 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27778301/footbinding-industrialization-and-evolutionary-explanation-an-empirical-illustration-of-niche-construction-and-social-inheritance
#7
Melissa J Brown
The incorporation of niche construction theory (NCT) and epigenetics into an extended evolutionary synthesis (EES) increases the explanatory power of evolutionary analyses of human history. NCT allows identification of distinct social inheritance and cultural inheritance and can thereby account for how an existing-but-dynamic social system yields variable influences across individuals and also how these individuals' microlevel actions can feed back to alter the dynamic heterogeneously across time and space...
December 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27686361/review-of-daniel-nettle-s-tyneside-neighborhood-deprivation-social-life-and-social-behavior-in-one-british-city-open-book-2015
#8
Benjamin Campbell
No abstract text is available yet for this article.
December 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27678412/marriage-markets-and-male-mating-effort-violence-and-crime-are-elevated-where-men-are-rare
#9
Ryan Schacht, Douglas Tharp, Ken R Smith
The negative social outcomes in populations with male-biased sex ratios are a growing concern. In general, the expectation is of heightened violence as a result of excess men engaging in antisocial behavior and crime, thereby threatening societal stability. While intuitive, these claims are largely unsupported in the literature. Using mating market theory as our guide, we examine indicators of male mating effort, including (1) violent competition between men (homicide, aggravated assault) and (2) indicators of uncommitted sexual behavior (rape, sex offenses, and prostitution)...
December 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27670437/the-reproductive-ecology-of-industrial-societies-part-ii-the-association-between-wealth-and-fertility
#10
Gert Stulp, Rebecca Sear, Susan B Schaffnit, Melinda C Mills, Louise Barrett
Studies of the association between wealth and fertility in industrial populations have a rich history in the evolutionary literature, and they have been used to argue both for and against a behavioral ecological approach to explaining human variability. We consider that there are strong arguments in favor of measuring fertility (and proxies thereof) in industrial populations, not least because of the wide availability of large-scale secondary databases. Such data sources bring challenges as well as advantages, however...
December 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27670436/the-reproductive-ecology-of-industrial-societies-part-i-why-measuring-fertility-matters
#11
Gert Stulp, Rebecca Sear, Louise Barrett
Is fertility relevant to evolutionary analyses conducted in modern industrial societies? This question has been the subject of a highly contentious debate, beginning in the late 1980s and continuing to this day. Researchers in both evolutionary and social sciences have argued that the measurement of fitness-related traits (e.g., fertility) offers little insight into evolutionary processes, on the grounds that modern industrial environments differ so greatly from those of our ancestral past that our behavior can no longer be expected to be adaptive...
December 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27614655/modernizing-evolutionary-anthropology-introduction-to-the-special-issue
#12
Siobhán M Mattison, Rebecca Sear
Evolutionary anthropology has traditionally focused on the study of small-scale, largely self-sufficient societies. The increasing rarity of these societies underscores the importance of such research yet also suggests the need to understand the processes by which such societies are being lost-what we call "modernization"-and the effects of these processes on human behavior and biology. In this article, we discuss recent efforts by evolutionary anthropologists to incorporate modernization into their research and the challenges and rewards that follow...
December 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27595735/reproductive-responses-to-economic-uncertainty-fertility-decline-in-post-soviet-ust-avam-siberia
#13
David A Nolin, John P Ziker
In the face of economic and political changes following the end of the Soviet Union, total fertility rates fell significantly across the post-Soviet world. In this study we examine the dramatic fertility transition in one community in which the total fertility rate fell from approximately five children per woman before 1993 to just over one child per woman a decade later. We apply hypotheses derived from evolutionary ecology and demography to the question of fertility transition in the post-Soviet period, focusing on an indigenous community (Ust'-Avam) in the Taimyr Region, northern Russia...
December 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27541743/marital-dissolution-and-child-educational-outcomes-in-san-borja-bolivia
#14
Kristin Snopkowski
Serial monogamy is likely an adaptive mating strategy for women when the expected future fitness gains with a different partner are greater than expected future fitness with one's current partner. Using interview data from more than 400 women in San Borja, Bolivia, discrete-time event history analyses and random effects regression analyses were conducted to examine predictors of marital dissolution, separated by remarriage status, and child educational outcomes. Male income was found to be inversely associated with women's risk of "divorce and remarriage," whereas female income is positively associated with women's risk of "divorce, but not remarriage...
December 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27534664/home-birth-midwifery-in-the-united-states-evolutionary-origins-and-modern-challenges
#15
Bria Dunham
Human childbirth is distinct in requiring-or at least strongly profiting from-the assistance of a knowledgeable attendant to support the mother during birth. With economic modernization, the role of that attendant is transformed, and increased access to obstetric interventions may bring biomedicine into conflict with anatomical, physiological, and behavioral adaptations for childbirth. This article provides an overview of the role of midwifery in human evolution and ways in which this evolutionary heritage is reflected in home birth in the contemporary United States...
December 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27510719/the-faith-of-sacrifice-leadership-trade-offs-in-an-afro-brazilian-religion
#16
Montserrat Soler
Despite secular trends in some countries, prestige-based authority in the form of religious leadership remains hugely influential in the everyday lives of millions of people around the world. Here, the costs and benefits of religious leadership are explored in an urban setting in northeastern Brazil. An economic game, within-group cooperation questionnaires, and social network analyses were carried out among adherents of an Afro-Brazilian religion. Results reveal that leaders display high levels of religious commitment and disproportionally provide cooperative services to group members...
December 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27405586/disgust-gender-and-social-change-testing-alternative-explanations-for-the-decline-of-cousin-marriage-in-karo-society
#17
Geoff Kushnick, Daniel M T Fessler, Fikarwin Zuska
Among the Karo of Indonesia, the frequency of matrilateral cross-cousin (impal) marriage has declined in recent decades. We conducted a vignette experiment to assess the contributions of a handful of factors in shaping this pattern. Surprisingly, we found that cosocialization of a hypothetical woman with her impal led to increased judgments of marriage likelihood and decreased feelings of disgust in male and female respondents (n = 154). We also found that females, more than males, judged impal marriage more likely when there were practical advantages...
December 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27796827/maternal-competition-in-women
#18
Catherine Linney, Laurel Korologou-Linden, Anne Campbell
We examined maternal competition, an unexplored form of competition between women. Given women's high investment in offspring and mothers' key role in shaping their reproductive, social, and cultural success as adults, we might expect to see maternal competition between women as well as mate competition. Predictions about the effect of maternal characteristics (age, relationship status, educational background, number of children, investment in the mothering role) and child variables (age, sex) were drawn from evolutionary theory and sociological research...
October 29, 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27796826/revisiting-psychological-mechanisms-in-the-anthropology-of-altruism
#19
Joseph Hackman, Shirajum Munira, Khaleda Jasmin, Daniel Hruschka
Anthropologists have long been interested in the reasons humans choose to help some individuals and not others. Early research considered psychological mediators, such as feelings of cohesion or closeness, but more recent work, largely in the tradition of human behavioral ecology, shifted attention away from psychological measures to clearer observables, such as past behavior, genetic relatedness, affinal ties, and geographic proximity. In this paper, we assess the value of reintegrating psychological measures-perceived social closeness-into the anthropological study of altruism...
October 28, 2016: Human Nature: An Interdisciplinary Biosocial Perspective
https://www.readbyqxmd.com/read/27783325/the-driving-forces-of-cultural-complexity-neanderthals-modern-humans-and-the-question-of-population-size
#20
Laurel Fogarty, Joe Yuichiro Wakano, Marcus W Feldman, Kenichi Aoki
The forces driving cultural accumulation in human populations, both modern and ancient, are hotly debated. Did genetic, demographic, or cognitive features of behaviorally modern humans (as opposed to, say, early modern humans or Neanderthals) allow culture to accumulate to its current, unprecedented levels of complexity? Theoretical explanations for patterns of accumulation often invoke demographic factors such as population size or density, whereas statistical analyses of variation in cultural complexity often point to the importance of environmental factors such as food stability, in determining cultural complexity...
October 25, 2016: Human Nature: An Interdisciplinary Biosocial Perspective
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