Rueda-Uribe, C. https://orcid.org/0000-0003-4673-3624
Lötberg, U. https://orcid.org/0000-0002-6945-0873
Åkesson, S. https://orcid.org/0000-0001-9039-2180
Funding for this research was provided by:
Vetenskapsrådet (621-2013-4361, 2016‐03625, 349-2007-8690)
Swedish Postcode Foundation
Alvins Fund
Petra Lundbergs Foundation
WWF Sweden
BirdLife Sverige
Lund University
Article History
Received: 20 August 2021
Accepted: 10 February 2022
First Online: 2 March 2022
Change Date: 3 June 2022
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/s40462-022-00321-w
Declarations
:
: Permission to track Caspian terns in Sweden was given by Malmö-Lunds djurförsöksetiska nämnd (M470-12, M72-15, M74-20) to SÅ. Permission to capture and ring Caspian terns in Sweden was given by the Swedish Environmental Protection Agency and the Swedish Ringing Office to UL (NV-03567-16). Permits to visit protected areas where the colonies are situated were given by responsible County Administration Boards. The permit to visit Stenerna and Hållet was given to UL the one for Furö was given to Tommy Larsson. A special permit was given to catch Caspian terns within Rödkallen-Söräspens Nature reserve (521-4026-18).
: The authors declare that they have no competing interests.