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Additional Information

Competing Interests

Authors declare no competing interests

Author Contributions

Alese Colehour conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

James F Meadow contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Tara J Cepon-Robins reviewed drafts of the paper, field support.

Theresa E Gildner reviewed drafts of the paper, field support.

Melissa A Liebert reviewed drafts of the paper, field support.

Samuel S Urlacher reviewed drafts of the paper, field support.

Brendan J M Bohannan contributed reagents/materials/analysis tools, reviewed drafts of the paper.

J Josh Snodgrass reviewed drafts of the paper, advising, editing.

Lawrence S Sugiyama reviewed drafts of the paper, advising, editing, field support.

Field Study Permissions

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

Research for the Shuar Health and Life History project was authorized in a letter provided by the Federación Interprovincial de Centros Shuar (FICSH).

DNA Deposition

The following information was supplied regarding the deposition of DNA sequences:

MG-RAST 4545634.3-4545652.3

Funding

This study was funded by the Graduate Research Fellowship Program of the National Science Foundation, Fellow ID 2011102824 (https://www.fastlane.nsf.gov/grfp/). Other incurred project costs were supported by the Wenner-Gren Foundation (Grant number: 8476; http://www.wennergren.org/programs/dissertation-fieldwork-grants), the Sasakawa Young Leaders Fellowship Fund (http://www.tokyofoundation.org/sylff/), Department of Anthropology (UO) (http://pages.uoregon.edu/anthro/), and the Institute for Ecology and Evolution (UO) (http://ie2.uoregon.edu/) and the Harvard University Frederick Sheldon Traveling Fellowship. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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