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Supplementary material from "Sensitivity of marine protected area network connectivity to atmospheric variability"

Authors: Fox, Alan D.; Lea-Anne Henry; Corne, David W.; J. Murray Roberts;

Supplementary material from "Sensitivity of marine protected area network connectivity to atmospheric variability"

Abstract

International efforts are underway to establish well-connected systems of marine protected areas (MPAs) covering at least 10% of the ocean by 2020. But the nature and dynamics of ocean ecosystem connectivity are poorly understood, with unresolved effects of climate variability. We used 40-year runs of a particle tracking model to examine the sensitivity of an MPA network for habitat-forming cold-water corals in the northeast Atlantic to changes in larval dispersal driven by atmospheric cycles and larval behaviour. Trajectories of Lophelia pertusa larvae were strongly correlated to the North Atlantic Oscillation (NAO), the dominant pattern of interannual atmospheric circulation variability over the northeast Atlantic. Variability in trajectories significantly altered network connectivity and source-sink dynamics, with positive phase NAO conditions producing a well-connected but asymmetrical network connected from west to east. Negative phase NAO produced reduced connectivity, but notably some larvae tracked westward-flowing currents towards coral populations on the mid-Atlantic ridge. Graph theoretical metrics demonstrate critical roles played by seamounts and offshore banks in larval supply and maintaining connectivity across the network. Larval longevity and behaviour mediated dispersal and connectivity, with shorter lived and passive larvae associated with reduced connectivity. We conclude that the existing MPA network is vulnerable to atmospheric-driven changes in ocean circulation.

Keywords

Ecology, FOS: Biological sciences, Environmental Science, FOS: Earth and related environmental sciences, Oceanography

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  • citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Funded by
UKRI| Advanced environmental monitoring solutions for the oil and gas industry in the Atlantic Frontier
Project
  • Funder: UK Research and Innovation (UKRI)
  • Project Code: NE/M007235/1
  • Funding stream: NERC
,
UKRI| Where did all the CO2 go? Insights from boron isotopes in deep-sea corals
Project
  • Funder: UK Research and Innovation (UKRI)
  • Project Code: NE/J021121/1
  • Funding stream: NERC
result:project:semrel
,
EC| ATLAS
Project
ATLAS
A Trans-AtLantic Assessment and deep-water ecosystem-based Spatial management plan for Europe
  • Funder: European Commission (EC)
  • Project Code: 678760
  • Funding stream: H2020 | RIA
Validated by funder | sysimport:crosswalk:datasetarchive
Related to Research communities
European Marine Science Marine Environmental Science : ATLAS
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