Hemispheric asymmetry in ocean change and the productivity of ecosystem sentinels

Sydeman, W.J.; Schoeman, D.S.; Thompson, S.A.; Hoover, B.A.; García-Reyes, M.; Daunt, F. ORCID: https://orcid.org/0000-0003-4638-3388; Agnew, P.; Anker-Nilssen, T.; Barbaud, C.; Barrett, R.; Becker, P.H.; Bell, E.; Boersma, P.D.; Bouwhuis, S.; Cannell, B.; Crawford, R.J.M.; Dann, P.; Delord, K.; Elliott, G.; Erikstad, K.E.; Flint, E.; Furness, R.W.; Harris, M.P. ORCID: https://orcid.org/0000-0002-9559-5830; Hatch, S.; Hilwig, K.; Hinke, J.T.; Jahncke, J.; Mills, J.A.; Reiertsen, T.K.; Renner, H.; Sherley, R.B.; Surman, C.; Taylor, G.; Thayer, J.A.; Trathan, P.N. ORCID: https://orcid.org/0000-0001-6673-9930; Verlarde, E.; Walker, K.; Wanless, S. ORCID: https://orcid.org/0000-0002-2788-4606; Warzybok, P.; Watanuki, Y.. 2021 Hemispheric asymmetry in ocean change and the productivity of ecosystem sentinels. Science, 372 (6545). 980-983. 10.1126/science.abf1772

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Official URL: https://doi.org/10.1126/science.abf1772

Abstract/Summary

Climate change and other human activities are causing profound effects on marine ecosystem productivity. We show that the breeding success of seabirds is tracking hemispheric differences in ocean warming and human impacts, with the strongest effects on fish-eating, surface-foraging species in the north. Hemispheric asymmetry suggests the need for ocean management at hemispheric scales. For the north, tactical, climate-based recovery plans for forage fish resources are needed to recover seabird breeding productivity. In the south, lower-magnitude change in seabird productivity presents opportunities for strategic management approaches such as large marine protected areas to sustain food webs and maintain predator productivity. Global monitoring of seabird productivity enables the detection of ecosystem change in remote regions and contributes to our understanding of marine climate impacts on ecosystems.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.1126/science.abf1772
UKCEH and CEH Sections/Science Areas:	Biodiversity (Science Area 2017-) UKCEH Fellows
ISSN:	0036-8075
NORA Subject Terms:	Ecology and Environment
Date made live:	03 Jun 2021 16:24 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/528753

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.1126/science.abf1772

UKCEH and CEH Sections/Science Areas:

Biodiversity (Science Area 2017-)
UKCEH Fellows

ISSN:

0036-8075

NORA Subject Terms:

Ecology and Environment

Date made live:

03 Jun 2021 16:24 +0 (UTC)