Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (FOR2136 LE1813/10-1, FOR2136, DE 1135/2-1, FOR2136, LE1813/10-1)
H2020 European Research Council (679787)
Received: 22 November 2018
Accepted: 2 May 2019
First Online: 16 May 2019
Ethics approval and consent to participate
: The protocol for urine sample collection in captive individuals was approved by the authorities of each zoo and supported by the coordinators of the EAZA Western Chimpanzee EEP and Robust Chimpanzee ESB (Frands Carlsen and Tom de Jongh). Permissions to conduct the research in Taï were granted by the Ministries of Research and Environment of Ivory Coast and Office Ivoirien des Parcs et Reserves. The Uganda Wildlife Authority, the Uganda National Council for Science and Technology, and the President’s Office of Uganda gave permission to collecting samples in Sonso.
: Not applicable.
: The authors declare that they have no competing interests.
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