Grampp, Mathilde http://orcid.org/0000-0001-5423-8960
Sueur, Cédric
van de Waal, Erica
Botting, Jennifer
Funding for this research was provided by:
John Templeton Foundation (ID40128)
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (P300P3_151187, 31003A_159587)
Article History
Received: 31 March 2018
Accepted: 25 February 2019
First Online: 2 April 2019
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: No human participants were included in this study. This study was approved by the University of Strasbourg and was carried out in full accordance with the ethical guidelines and European animal welfare legislation. Animals were habituated to the observers’ presence. Every effort was made to ensure the welfare of the animals and minimise disturbance of the groups.