Research
Family Demography Publications
"Child-directed speech is infrequent in a forager-farmer population: a time allocation study."
Child Development 90(3):.759-773.
Research Themes:
"Patterns of paternal investment explain cross-cultural variance in jealous response. "
Nature Human Behaviour. (doi:10.1038/s41562-019-0654-y).
Research Themes:
"Differences in Tsimane children's growth outcomes and associated determinants as estimated by WHO standards vs. within-population references. "
PLoS ONE 14(4): e0214965.
Research Themes:
"Differences between sons and daughters in the intergenerational transmission of wealth. "
Philosophical Transactions of the Royal Society B 374. http://doi.org/10.1098/rstb.2018.0076
Research Themes:
"Methodological differences cannot explain associations between health, anthropometrics and excess RMR. "
American Journal of Physical Anthropology 169:197-198.
Research Themes:
"Computed tomography shows high fracture prevalence among physically active forager-horticulturalists with high fertility. "
eLife 8:e48607.
Research Themes:
"The dynamics of men’s cooperation and social status in a small-scale society. "
Proceedings of the Royal Society B 286:20191367.
Research Themes:
"Niche diversity can explain cultural differences in personality structure. "
Nature Human Behaviour doi:10.1038/s41562-019-0730-3.
Research Themes:
"Testosterone is positively and estradiol negatively associated with mucosal immunity in Amazonian adolescents. "
American Journal of Human Biology 31:e23284.
Research Themes:
"Parental care."
In Koster J, Scelza B, Shenk M (Eds). Human Behavioral Ecology.
Research Themes:
"Fathers favour sons, mothers don’t discriminate: sex-biased parental care in north-western Tanzania. "
Evolutionary Human Sciences. 1, e13.
Research Themes:
"Evolutionary Approaches to Population Health: Insights on Polygynous Marriage, ‘Child Marriage’ and Female Genital Mutilation/Cutting. "
Burger O, Lee R & Sear, R. (Eds). Human Evolutionary Demography.
Research Themes:
"Earning their keep? Fostering, children’s education and work in north-western Tanzania. "
Demographic Research.
Research Themes:
"Parent-offspring conflict unlikely to explain ‘child marriage’ in northwestern Tanzania. "
Nature Human Behaviour. 3:346-353.
Research Themes:
"Sharing the load: the influence of co-resident children on the allocation of work and schooling in north-western Tanzania. "
Demography.
Research Themes:
"‘Child marriage’ in context: Exploring local attitudes towards early marriage in rural Tanzania. "
Sexual and Reproductive Health Matters. 27:1
Research Themes:
"Variation among populations in the immune protein composition of mother’s milk reflects subsistence pattern. "
Evolution, Medicine & Public Health 2018(1): 230-245.
Research Themes:
"Review of The Evolution of Senescence in the Tree of Life. "
Human Nature 29(4):468-474.
Research Themes:
"Broadening horizons: sample diversity and socioecological theory are essential to the future of psychological science. "
Proceedings of the National Academy of Sciences. 115(45):11420-11427 A
Research Themes:
"Food sharing models. "
International Encyclopedia of Anthropology. H. Callan (Ed.) doi:10.1002/9781118924396.wbiea1655
Research Themes:
"Nutrition transition in two lowland Bolivian subsistence populations."
American Journal of Clinical Nutrition 108(6):1183-1195.
Research Themes:
"Locomotor constraints favour the evolution of the human pygmy phenotype in tropical rainforests. "
Proceedings of the Royal Society B 285:20181492.
Research Themes:
"Understanding ‘Harmful Cultural Practices.’ "
Anthropology News 59: 3; e219-e222.
Research Themes:
"Marital violence and fertility in a relatively egalitarian high fertility population."
Nature Human Behaviour.
Research Themes:
"Trade-offs in children's time allocation: Mixed support for embodied capital models of the demographic transition in Tanzania."
Current Anthropology.
Research Themes:
"Sleep variability and nighttime activity regulate sleep patterns among Tsimane forager-horticulturalists."
American Journal of Physical Anthropology 166(3):590-600.
Research Themes:
"Are intestinal worms nature's anti-atherosclerosis vaccine?"
European Heart Journal 2018; doi:10.1093/eurheartj/ehy129
Research Themes:
"When to diversify, and with whom? Choosing partners among out-group strangers in lowland Bolivia."
Evolution and Human Behavior 39(1):30-39.
Research Themes:
"Food sharing models."
International Encyclopedia of Anthropology.
Research Themes:
"Sex differences in political leadership in an egalitarian society."
Evolution and Human Behavior 39(4):402-411.
Research Themes:
"Parental hormones are associated with crop loss and family sickness following catastrophic flooding in lowland Bolivia."
Physiology and Behavior 193A:101-107.
Research Themes:
"Low perceived control is associated with treatment seeking among high mortality Bolivian forager-farmers."
Social Science and Medicine 200:156-165. + SUPPLEMENT.
Research Themes:
"How universal is the general factor of personality? An analysis of the Big Five in forager farmers of the Bolivian Amazon."
Journal of Cross-Cultural Psychology 1-17.
Research Themes:
"Population issues in development. International Encyclopedia of Anthropology."
Wiley.
Research Themes:
"Greater wealth inequality, less polygyny: rethinking the polygyny threshold model."
J. Royal Society Interface 20180035.
Research Themes:
"Child nutritional status among births exceeding ideal family size in a high fertility population."
Maternal & Child Nutrition e12625.
Research Themes:
"Information transmission and the oral tradition: evidence of a late-life service niche for Tsimane Amerindians."
Evolution and Human Behavior 39:94-105.
Research Themes:
"The roles of mothers’ partner satisfaction and mother-infant communication duration in mother-infant adrenocortical attunement."
Adaptive Human Behavior and Physiology, 1-17.
Research Themes:
"Human life history strategies: Calibrated to external or internal cues? "
Evolutionary Psychology, 15(1), 1-16.
Research Themes:
"Marital status and sleeping arrangements predict salivary testosterone levels in rural Gambian men."
Adaptive Human Behavior and Physiology 3:221-240.
Research Themes:
"The physiological constellation of deprivation: immunological strategies and health outcomes (Commentary on: Pepper and Nettle, 'The Behavioural Constellation of Deprivation: Causes and Consequences')."
Behavioral and Brain Sciences, in press.
Research Themes:
"Apolipoprotein E4 is associated with improved cognitive function in Amazonian forager-horticulturalists with a high parasite burden."
The FASEB Journal. DOI:10.1096/fj.201601084R.
Research Themes:
"Human grooming in comparative perspective: using phylogenetic analyses to test hygienic, thermoregulatory and social functions among six small-scale societies."
American Journal of Physical.
Research Themes:
"What explains personality covariation? A test of the socioecological complexity hypothesis."
Social Psychological and Personality Science.
Research Themes:
"A Matter of Perception: Subjective socioeconomic status and cortisol among inhabitants of the island of Utila, Honduras."
American Journal of Human Biology. 1-17. http://doi.org/10.1002/ajhb.23031.
Research Themes:
"Diet, atherosclerosis, and helminthic infection in Tsimane."
Lancet 390:2035.
Research Themes:
"Cognitive performance across the life course among Bolivian forager-farmers with limited schooling."
Developmental Psychology 53(1):160-176. + SUPPLEMENT
Research Themes:
"Father absence but not fosterage predicts food insecurity, relative poverty and poor child health in northern Tanzania."
American Journal of Human Biology 29 e22938.
Research Themes:
"Expanding the insurance hypothesis of obesity with physiological cues (Commentary on Nettle, Andrews, and Bateson, 'Food insecurity as a driver of obesity in humans: The insurance hypothesis')."
Behavioral and Brain Sciences. 40, e108 DOI: https://doi.org/10.1017/S0140525X16001333.
Research Themes:
"Growth references for Tsimane forager-horticulturalists of the Bolivian Amazon."
American Journal of Physical Anthropology. 162(3) 441-461. DOI: 10.1002/ajpa.23128.
Research Themes:
"Horticultural activity predicts later localized limb status in a contemporary preindustrial population."
American Journal of Physical Anthropology 163(3):425-436. + SUPPLEMENT
Research Themes:
"Why We Yearn for the Simple Life. "The Sexual Allure of Simplicity.""
Published online: http://www.sapiens.org/debate/sex-simplicity/
Research Themes:
"Cooperation between the sexes. In: Chimpanzees and Human Evolution."
(Edited by M. Muller, R. Wrangham, D. Pilbeam). Cambridge, MA: Harvard Press. Pp. 548-571.
Research Themes:
"Why household inefficiency? An experimental approach to assess spousal resource distribution preferences in a subsistence population undergoing socioeconomic change."
Evolution and Human Behavior 38(1):71-81. + SUPPLEMENT
Research Themes:
"Adrenal maturation, nutritional status and mucosal immunity in Bolivian adolescents."
American Journal of Human Biology, in press.
Research Themes:
"The Tsimane Health and Life History Project (THLHP): Integrating anthropology and biomedicine. Evolutionary Anthropology."
26(2) 54-73. DOI: 10.1002/evan.21515.
Research Themes:
"Coronary atherosclerosis in indigenous South American Tsimane: a cross-sectional cohort study."
Lancet389(10080):1730-1739. + SUPPLEMENT
Research Themes:
"Toxicoanthropology: phthalate exposure in relation to market access in a remote forager-horticultural population."
International Journal of Hygiene and Environmental Health 220(5):799-809.
Research Themes:
"Biodiversity areas under threat: overlap of climate change and population pressures on the world's biodiversity priorities."
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0170615
Research Themes:
"Mortality, senescence and life span. In: Chimpanzees and Human Evolution."
(Edited by M. Muller, R. Wrangham, D. Pilbeam). Cambridge, MA: Harvard Press. Pp. 181-216.
Research Themes:
"Risk buffering and resource access shape valuation of out-group and in-group strangers."
Nature Scientific Reports.
Research Themes:
"High resting metabolic rate among Amazonian forager-horticulturalists experiencing high pathogen burden."
American Journal of Physical Anthropology.
Research Themes:
"Small-scale societies exhibit fundamental variation in the role of intentions in moral judgment."
PNAS 113(17): 4688-4693.
Research Themes:
"The offspring quantity-quality trade-off and human fertility variation."
Philosophical Transactions of the Royal Society B: Biological Sciences 371, 20150145.
Research Themes:
"Cardiovascular disease and type 2 diabetes in evolutionary perspective: a critical role for helminths?"
Evolution, Medicine & Public Health 338-357. doi:10.1093/emph/eow028.
Research Themes:
"An epigenetic clock analysis of race/ethnicity, sex, and coronary heart disease."
Genome Biology 17:171. DOI 10.1186/s13059-016-1030-0.
Research Themes:
"Immune function in Amazonian horticulturalists."
Annals of Human Biology 43(4):382-396.
Research Themes:
"Costs of reproduction and maternal depletion in a high fertility and mortality population."
Nature Scientific Reports 6:30056.
Research Themes:
"Calcaneal quantitative ultrasound indicates reduced bone mineral status among physically active adult forager-horticulturalists."
J. of Bone and Mineral Research 31(3): 663-671.
Research Themes:
"Obstacles and catalysts of cooperation in humans, bonobos and chimpanzees: the behavioural reaction norms can help explain variation in sex roles, inequality, war and peace."
Behaviour. DOI:10.1163/1568539X-00003347
Research Themes:
"Reply to Rieger and Wagner: Context matters when studying purportedly harmful cultural practices."
Proceedings of the National Academy of Sciences of the United States of America.
Research Themes:
"Conflict or congruence? Maternal and infant-centric factors associated with shorter exclusive breastfeeding durations among the Tsimane."
Social Science & Medicine 170:9-16.
Research Themes:
"Associations between men's testosterone and immune function in a pathogenically stressed forager-horticultural population."
American Journal of Physical Anthropology..
Research Themes:
"Response to de Iglesia et al. Response to de la Iglesia et al."
Current Biology 26:R273-R274. + SUPPLEMENT.
Research Themes:
"Supply and demand explain reciprocal exchange of multiple commodities and individual differences in cooperation in a small-scale society."
Current Biology 26:1-8.
Research Themes:
"Facial width-to-height ratio (fWHR) is not associated with adolescent testosterone levels."
PLoS ONE 11(4): e0153083. doi:10.1371/journal.pone.0153083.
Research Themes:
"Understanding variation in human fertility: What can we learn from evolutionary demography?"
Philosophical Transactions of the Royal Society B: Biological Sciences 371, 20150144.
Research Themes:
"Sending children to school: rural livelihoods and parental investment in education in northern Tanzania."
Evolution & Human Behavior 37:142-151.
Research Themes:
"Salivary microbiomes of indigenous Tsimane mothers and infants are distinct despite frequent premastication."
PeerJ 4:e2660; DOI 10.7717/peerj.2660.
Research Themes:
"Reciprocal exchange patterned by market forces helps explain cooperation in a small-scale society."
Current Biology 26:1-8. + SUPPLEMENT.
Research Themes:
"Reproductive fat. "
In Encyclopedia of Human Sexuality, W. Trevathan, Ed. Wiley/Blackwell: New York.
Research Themes:
"Food sharing."
Emerging Trends in the Social and Behavioral Sciences. SAGE. Edited by Robert A. Scott and Stephen M. Kosslyn.
Research Themes:
"Evolutionary psychology."
In Encyclopedia of Human Sexuality, W. Trevathan, Ed. Wiley/Blackwell: New York.
Research Themes:
"Helminth infection, fecundity and age of first pregnancy in women."
Science 350: 970-972.
Research Themes:
"Natural sleep and its seasonal variations in three pre-industrial societies."
Current Biology 25:1-7.
Research Themes:
"Reduced functional status and social conflict increase risk of depression in adulthood among modernizing Amazonian forager-farmers."
Journals of Gerontology Social Sciences 70(6):948-956. doi:10.1093/geronb/gbu080.
Research Themes:
"Low mineral density of a weight-bearing bone among adult women in a high fertility population."
American Journal of Physical Anthropology.
Research Themes:
"Physical Growth of the Shuar: Height, Weight, and BMI Growth References for an Indigenous Amazonian Population,"
American Journal of Human Biology, in press.
Research Themes:
"Challenging the inevitability of age-related prostate enlargement: low levels of benign hyperplasia among Bolivian Amerindians."
Journal of Gerontology: Medical Sciences.
Research Themes:
"Salivary oxytocin increases concurrently with testosterone and time away from home among returning Tsimane hunters."
Biology Letters20150058.
Research Themes:
"Testosterone is associated with enhanced cognitive performance in a subsistence population with minimal schooling."
American Journal of Human Biology. doi: 10.1002/ajhb.22665.
Research Themes:
"Does market integration buffer risk, erode traditional sharing practices and increase inequality? A test among Bolivian forager-farmers."
Human Ecology. doi:10.1007/s10745-015-9764-y
Research Themes:
"Sexual dimorphism"
In Encyclopedia of Human Sexuality, W. Trevathan, Ed. Wiley/Blackwell: New York.
Research Themes:
"Evolving the neuroendocrine physiology of human and primate cooperation and collective action."
Philosophical Transactions of the Royal Society 370: 20150014.
Research Themes:
"Moral parochialism and contextual contingency across seven societies."
Proceedings of the Royal Society B 282:20150907.
Research Themes:
"Infection with helminths affects fecundity and age of first pregnancy in human females, in submission."
Research Themes:
"Adaptive personality calibration among Tsimane forager-horticulturalists: effects of embodied capital on prosocial traits."
Behavioral Ecology. doi:10.1093/beheco/arv051
Research Themes:
"Masculine perspectives about family and work concurrently promote and inhibit men's health behaviors."
International Journal of Men's Health.
Research Themes:
"The low male voice is a costly signal of phenotypic quality among Bolivian adolescents."
Evolution and Human Behavior.
Research Themes:
"Forager skill ontogeny among Tsimane Amerindians."
American Journal of Physical Anthropology.
Research Themes: