Klein, Harmonie http://orcid.org/0000-0003-1925-5049
Bocksberger, Gaëlle
Baas, Pauline
Bunel, Sarah
Théleste, Erwan
Pika, Simone
Deschner, Tobias
Funding for this research was provided by:
Max-Planck-Gesellschaft
Horizon 2020 (772000)
Projekt DEAL
Article History
Received: 14 July 2020
Accepted: 13 December 2020
First Online: 8 January 2021
Compliance with ethical standards
:
: The authors declare no competing interests.
: This study relied entirely on non-invasive methods, with observers following chimpanzees at a minimum distance of eight meters. A strict set of hygiene rules was in effect during the study period, including a 5-day quarantine and observers wearing face masks whenever chimpanzees were present. The research adhered to the legal requirements of Gabon and was permitted by the Agence Nationale des Parcs Nationaux and the Centre National de la Recherche Scientifique et Technique of Gabon, Libreville, Gabon.