Text and Data Mining valid from 2019-10-11
Received: 8 July 2019
Accepted: 16 September 2019
First Online: 11 October 2019
: All animals were handled in accordance with the ASAB guidelines for the treatment of animals in behavioural research and teaching.
: Not applicable.
: SAR is a member of the editorial board of BMC Evolutionary Biology. The authors declare that they have no other competing interests.