Funding for this research was provided by:
Department for Environment, Food and Rural Affairs (Project FSF-Defra- 10-48)
Text and Data Mining valid from 2018-04-02
Received: 20 June 2017
Revised: 21 March 2018
Accepted: 21 March 2018
First Online: 2 April 2018
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: Full permission for all methods used in this study and access to the penguin colonies were granted by the Tristan da Cunha government. Animal ethics approval was given by Rhodes University Ethics Committee (ZOOL-17-2010). All applicable international and institutional guidelines for the use of animals were followed.