- Evolutionary Psychology and Human Behavior
- Stress Responses and Cortisol
- Child Nutrition and Water Access
- Neuroendocrine regulation and behavior
- Gut microbiota and health
- Probiotics and Fermented Foods
- Milk Quality and Mastitis in Dairy Cows
- Bullying, Victimization, and Aggression
- Economic, Social, and Public Health Issues in Russia and Globally
- Obesity, Physical Activity, Diet
- Agriculture and Rural Development Research
- Indigenous Studies and Ecology
- Cognitive Abilities and Testing
- Infant Nutrition and Health
- Tryptophan and brain disorders
- Urban Agriculture and Sustainability
- Child and Animal Learning Development
- Mosquito-borne diseases and control
- Poverty, Education, and Child Welfare
- Evolutionary Game Theory and Cooperation
- Ovarian function and disorders
- Zoonotic diseases and public health
- Public Health and Social Inequalities
- Food Security and Health in Diverse Populations
- Demographic Trends and Gender Preferences
University of Alabama
2020-2023
Washington State University
2010-2018
We present the first available data on human milk microbiome (HMM) from small-scale societies (hunter-gatherers and horticulturalists in Central African Republic [CAR]) explore relationships among subsistence type seasonality HMM diversity composition. Additionally, as humans are cooperative breeders and, throughout our evolutionary history today, we rear offspring within social networks, examine associations between environment HMM. Childrearing breastfeeding exist a biosocial nexus, which...
ABSTRACT Research suggests that nonmaternal caregivers (allomothers) offer essential assistance through caregiving and provisioning, helping to support lengthy child development. Here, we examine the role of allomothers broader social sharing network on Aka forager children's anthropometrics. We hypothesize investors strategically target their when it is most needed will have greatest effect. evaluate nutritional status using WHO standards [weight‐for‐age (WAZ), height‐for‐age (HAZ),...
Abstract Objectives Evolution of human maternal investment strategies is hypothesized to be tied biological constraints and environmental cues. It likely, however, that the socioecological context in which mothers' decisions are made equally important. Yet, a lack studies examining from cross‐cultural, holistic approach has hindered our ability investigate evolution strategies. Here, we take systems‐level study how life history characteristics, environments, socioecology influence their...
Objectives Examination of sibling effects on nutritional status is complicated by siblings being both alloparents and resource competitors, as well the extensive changes children undergo across development. To evaluate with consideration these opposing roles, we use an evolutionary framework rooted in human ontogeny cooperative breeding. Methods Anthropometric data were collected from 113 Ngandu horticulturalist (birth‐<18 years old).We generated weight‐for‐age (WAZ), height‐for‐age...
Abstract Objectives Hormones have many roles in human ontogeny, including the timing of life history ‘switch points’ across development. Limited hormonal data exist from non‐Western children, leaving a significant gap our understanding diversity patterning. This cross‐sectional study examines dehydroepiandrosterone sulfate (DHEAS) production relation to age, sex, ethnicity, and cortisol concentrations, as well average age adrenarche, among Aka Ngandu children Central African Republic Sidama...
Abstract Objective Adrenarche, the biological event marked by rising production of dehydroepiandrosterone and its sulfate (DHEAS), may represent a sensitive period in child development, with important implications for adolescence beyond. Nutritional status, particularly BMI and/or adiposity, has long been hypothesized as factor DHEAS but findings are inconsistent, few studies have examined this among non‐industrialized societies. In addition, cortisol not included these models. We here...
Aggression is often considered a maladaptive behavior, and an important social problem cross-culturally.There are two primary theoretical arenas examining the origins of age sex differences in aggression.Evolutionary theories assert that sexual selection has shaped physical (e.g., hitting) indirect gossiping) aggression, suggesting males make use aggression resource competition dominance while females rely on less risky strategies for same purposes.Biosocial theory ties to inculcation roles,...
Click to increase image sizeClick decrease size FundingThe author(s) reported there is no funding associated with the work featured in this article.