Parental investment theory and the concept of "on demand" breastfeeding

David P. Tracer

University of Colorado Denver, United States of America

The effects of women’s work on breastfeeding outcomes and time allocation in Bangladeshi Shodagor fishing and trading communities

Katie Starkweather¹, Haley Ragsdale², Maggie Butler³, Fatema Tuz Zohora⁴, Nurul Alam⁵

¹Department of Anthropology, University of California Santa Barbara, Santa Barbara, CA; ²Department of Anthropology, University of Illinois Chicago, Chicago, IL; ³Department of Preventative Medicine, Feinberg School of Medicine, Northwestern University, Evanston, IL; ⁴Community Health Sciences, School of Public Health, University of Illinois Chicago; ⁵Health Systems and Population Studies Division, International Center for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh

Maternal perceptions and infant temperament shape early feeding practices in low-income African American dyads

Erin Hosein^1,2, Blair Tilley², Heather Wasser², Morgan Hoke^1,2, Amanda Thompson^1,2,3

¹Department of Anthropology, University of North Carolina at Chapel Hill, Chapel Hill, NC; ²Carolina Population Center, University of North Carolina at Chapel Hill, Chapel Hill, NC; ³Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC

Do infant feeding practices in Bolivian Aymara communities vary with infant gender, expressed parental gender preference, and/or household economic strategy?

Elizabeth Coggeshall¹, Virginia Vitzthum^1,2

¹Department of Anthropology, Indiana University, Bloomington, IN; ²Department of Medicine, Centre for Menstrual Cycle and Ovulation Research, University of British Columbia, Vancouver, BC, Canada

Head versus Length Growth: The Role of Infection and Nutrition among Breastfed Infants in Michigan

Intan Kumbayoni^1,2, Hannah Jue^2,3, Abby Anderson^1,2, Jamie Marx^2,4, Masako Fujita^1,2

¹Department of Anthropology, Michigan State University, East Lansing, MI; ²Biomarker Laboratory for Anthropological Research, Michigan State University, East Lansing, MI; ³Department of Biochemistry, Michigan State University, East Lansing, MI; ⁴Human Biology Program, Michigan State University, East Lansing, MI

Household socioeconomic conditions and the infant gut microbiome across the first nine months of life in the urban Amazon

Katherine Daiy^1,2, Barbara A Piperata^1,2, Min seung Kim³, Vanessa L Hale⁴, Christian Hoffmann⁵, Jiyoung Lee^3,6

¹Department of Anthropology, The Ohio State University, Columbus, OH; ²Health and Environment Modeling Co-Laboratory (HEALMOD), The Ohio State University, Columbus, OH; ³Division of Environmental Health Sciences, College of Public Health, The Ohio State University, Columbus, OH; ⁴Department of Veterinary Preventative Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH; ⁵Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, Brazil; ⁶Department of Food Science & Technology, The Ohio State University, Columbus, OH

Paternal care behaviors associated with differential diversity and relative abundance of infant gut and skin microbiota

Rebecca Cai Ting Wu¹, Maria Luisa Savo Sardaro², Katherine Amato², Melissa Manus³, Amanda Thompson¹

¹University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; ²Northwestern University, Evanston, Illinois; ³University of Texas at San Antonio, San Antonio, Texas

Household composition and children’s dietary and nutritional intake in a rural Darai village, Nepal

Chikayo Kusano¹, Masahiro Umezaki², Rajendra Parajuli³

¹Japan International Cooperation Agency, Japan; ²Department of Human Ecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan; ³Central Department of Zoology, Tribhuvan University, Kathmandu

Intestinal energy loss among Indigenous Shuar children of Amazonian Ecuador: Insights into human energetics, life history, and health

Marcela Pfaff-Nash¹, Leonardo Soto-Neira², Elizabeth Y. Kim³, Melissa A. Liebert⁴, Felicia C. Madimenos⁵, J. Josh Snodgrass^6,7, Lawrence S. Sugiyama⁶, Samuel S. Urlacher¹

¹Department of Anthropology, Baylor University, Waco, TX; ²Independent Researcher; ³Department of Biology, Baylor University, Waco, TX; ⁴Department of Anthropology, Northern Arizona University, Flagstaff, AZ; ⁵Department of Anthropology, Queens College (CUNY), Queens, NY; ⁶Department of Anthropology, University of Oregon, Eugene, OR; ⁷Global Station for Indigenous Studies & Cultural Diversity, Hokkaido University, Japan

Simulating the effects of health and nutrition interventions on human growth

Catalina Fernandez^1,3, Caissa Revilla-Minaya^2,3, John Bunce^2,3

¹Department of Anthropology, Florida Atlantic University, Boca Ratón, FL, USA.; ²Division of Anthropology, American Museum of Natural History, New York, NY, USA.; ³Department of Human Behavior, Ecology and Culture, Max Planck Institute for Evolutionary Anthropology, Germany.

Secular trends in physical fitness among Azorean primary school children

Carla Santos^1,2, José Maia¹, Olga Vasconcelos¹, Eduardo Guimarães¹, Fernando Garbeloto³, Go Tani³, PT Katzmarzyk⁴, MI Varela-Silva⁵, Sara Pereira¹

¹Faculty of Sport, University of Porto, Portugal; ²CIDEFES, Lusófona University, Lisboa, Portugal; ³School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil; ⁴Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA; ⁵School of Sport, Exercise and Health Sciences, Loughborough University, United Kingdom

Evaluating the relationship between household factors and male pubertal development in Utila, Honduras

Claire Zhang¹, Steven Arnocky³, Aaron Blackwell², Jessica K Hlay⁴, Madison Hönig², Nicole Merullo¹, Izabel Rodríguez-James¹, Brooke Rothamer¹, Caroline Smith², Carolyn Hodges-Simeon¹

¹Department of Anthropology, Boston University, Boston, MA; ²Department of Anthropology, Washington State University, Pullman, WA; ³Department of Psychology, Nipissing University, North Bay, ON; ⁴Department of Anthropology, University of Notre Dame, Notre Dame, IN