Protocols & data downloads

Foraging on flowers

ABRP Monitoring Guide

Here we provide a link to the Amboseli Baboon Research Project monitoring guide. This guidebook describes the procedures we use to collect all the data sets that allow us to monitor the demography, behavior, and habitat of the Amboseli baboons. This document also includes our protocols for collecting fecal samples. It is used as a guide for the permanent staff in Amboseli, for short-term visitors, and for visiting researchers pursuing their own projects.

ABRP Dominance rank assignments

This document explains how we assign dominance ranks to baboons in the study population. It also provides a comparison of our matrix-based method of rank assignments with a method based on Elo ratings. In general, we find very close concordance between matrix-based and Elo-based assignments, with some key differences that, in the aggregate, create an argument in favor of matrix-based assignments for our purposes. We discuss these differences in this downloadable document.

Amboseli Rainfall Data

Here we provide a link to the Amboseli Baboon Research Project long-term rainfall data (click "read only" to open the file, you can cut and paste the data into your own spreadhseet). These data were collected at our research camp on the southern border of Amboseli National Park (37M 03 01 778E; 97 03 100N; 1160M; ACC 6.9). They were collected by ABRP with primary support from the National Science Foundation (most recently BCS-0323553 and IOS-0919200). Data collection has been continuous and collected on a daily basis since August 1976. We endeavor to keep the rainfall data up to date through the last complete hydrological year. If you use these data, please acknowledge the Amboseli Baboon Research Project, especially Jeanne Altmann and Susan Alberts.

Alberts lab hormone protocol

This protocol describes the methods used to preserve fecal samples in the field, to extract steroid hormones from these samples, and to assay samples for hormone metabolites.

Alberts lab fecal genotyping protocol

This protocol describes the methods used to extract DNA from baboon fecal samples and genotype the baboons at 14 microsatellite loci.

Other data sets

If you are interested in using data generated by the Amboseli Baboon Research Project, we encourage you to visit the Dryad Data Repository (, Zenodo (, Duke Research Data Repository(, OSF (, and NCBI )(, where we have deposited a number of the data sets that underlie results in our publications. We have also provided links to the relevant available data sets in our alphabetical bibliography, which you can access here.

Our relational database, Babase

If you're interested in building a relational database for population and behavioral data for your population, see this page for key issues to consider. The source code for Babase is freely available and Open Source. 

ABRP downloads

Click the links at left to access our monitoring guide, information on dominance rank assignments, rainfall data, protocols for hormone extraction and hormone metabolite assays, and protocols for DNA extraction and fecal genotyping.


Collaborating institutions

Princeton, Duke, Notre Dame, and Max Planck Institute of Evolutionary Anthropology

Princeton University

Duke University

University of Notre Dame

Max Planck Institute of Evolutionary Anthropology






Additional Partner Institutions

Kenya Wildlife Service, University of Nairobi, Institute of Primate Research, The George Washington University, National Museums of Kenya, Enduimet Wildlife Management Area
















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