Funding for this research was provided by:
Japan Society for the Promotion of Science (#15K14439, KAKENHI Grant-in-Aid #26304029)
Ministério do Meio Ambiente
Text and Data Mining valid from 2018-06-28
Received: 30 March 2018
Revised: 11 June 2018
Accepted: 18 June 2018
First Online: 28 June 2018
Compliance with ethical standards
: The authors declare that they have no conflicts of interest.
: All applicable international, national, and institutional guidelines for the care and use of animals were followed. Permits to capture and tag birds on Torishima were obtained through the Japan Ministry of the Environment and Agency for Cultural Affairs, and Tokyo Metropolitan Government. Animal Ethics approvals were obtained through Hokkaido University.