Foraging segregation of two congeneric diving seabird species breeding on  St. George Island, Bering Sea

Kokubun, Nobuo; Yamamoto, Takashi; Sato, Nobuhiko; Watanuki, Yutaka; Will, Alexis; Kitaysky, Alexander S.; Takahashi, Akinori

doi:https://doi.org/10.5194/bg-13-2579-2016

Articles | Volume 13, issue 8

https://doi.org/10.5194/bg-13-2579-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Catastrophic reduction of sea ice in the Arctic Ocean...

https://doi.org/10.5194/bg-13-2579-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 13, issue 8

Research article

|

29 Apr 2016

Research article |

| 29 Apr 2016

Foraging segregation of two congeneric diving seabird species breeding on St. George Island, Bering Sea

Nobuo Kokubun, Takashi Yamamoto, Nobuhiko Sato, Yutaka Watanuki, Alexis Will, Alexander S. Kitaysky, and Akinori Takahashi

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Final revised paper (published on 29 Apr 2016)
Preprint (discussion started on 11 Nov 2015)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C8156: 'Review of Kokubun et al. Murre foraging', George Hunt, 02 Dec 2015
RC C9289: 'Review', David Ainley, 20 Jan 2016
AC C9971: 'Final response', Nobuo Kokubun, 26 Feb 2016

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Reconsider after major revisions (08 Mar 2016) by Toru Hirawake

AR by Nobuo Kokubun on behalf of the Authors (15 Mar 2016) Author's response Manuscript

ED: Referee Nomination & Report Request started (21 Mar 2016) by Toru Hirawake

RR by George Hunt (26 Mar 2016)

RR by David Ainley (11 Apr 2016)

ED: Publish as is (12 Apr 2016) by Toru Hirawake

AR by Nobuo Kokubun on behalf of the Authors (21 Apr 2016)

Short summary

Subarctic climate changes may affect the foraging ecology of top predators. We studied the foraging characteristics of two diving seabirds: common (COMUs) and thick-billed murres (TBMUs). COMUs had smaller wing area, partly used deeper depths with more frequent wing strokes, and used higher trophic prey than TBMUs. The smaller wing of COMUs may facilitate swimming agility so that they can capture more mobile prey. These may lead to their different responses to local marine environmental changes.