Laura Valoppi, Lead Scientist Cheryl Strong, Refuge Biologist John - - PowerPoint PPT Presentation

laura valoppi lead scientist cheryl strong refuge
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Laura Valoppi, Lead Scientist Cheryl Strong, Refuge Biologist John - - PowerPoint PPT Presentation

Laura Valoppi, Lead Scientist Cheryl Strong, Refuge Biologist John Bourgeois, Project Manager Presentation Outline San Francisco Bay restoration setting Uncertainties and the adaptive management approach Phase 1 project updates


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Laura Valoppi, Lead Scientist Cheryl Strong, Refuge Biologist John Bourgeois, Project Manager

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Presentation Outline

  • San Francisco Bay

restoration setting

  • Uncertainties and the

adaptive management approach

  • Phase 1 project updates
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Past (~1850) Present (~2000)

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Acquisition in 2003: A Public/Private Partnership

  • 16,500 acres

– 15,100 in South Bay – 1,400 along Napa River

  • $100 million cost

– State, Foundations and Federal dollars

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SBSP map

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Why restore tidal wetlands?

  • 90% tidal marshes lost
  • tidal marsh species threatened or endangered
  • flood control and water quality benefits
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Key habitats for migratory birds in migration and winter The San Francisco Bay hosts millions of shorebirds and waterfowl during migration

Aric Crabbe, BANG

Why manage ponds?

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Ecological trade-offs

tidal marsh species vs. salt pond species

  • M. Kern
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Adaptive Management Restoration

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South Bay Salt Pond Restoration

Proposed Alternatives

Managed Pond Emphasis Tidal Marsh Emphasis

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Key uncertainties

  • Wildlife use of changing habitats
  • Habitat evolution and sediment dynamics
  • Mercury methylation
  • Water quality
  • Invasive species
  • Public access
  • Infrastructure support
  • Sea level rise and climate change
  • C. Benton
  • R. Wilming
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Beginning of a large restoration experiment…

  • Preparation of a scientifically sound, publicly

supported restoration and public access plan

  • A strong science and applied research program critical

for success of the restoration

  • Adaptive management only possible with science and

monitoring support to track changes and inform decisions

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Phase 1 project actions, all with associated applied studies

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www.southbayrestoration.org

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Pond SF2: managed pond reconfiguration

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Status: construction complete,

  • pened Sept 7, 2010
  • C. Benton
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Ponds A19, 20, 21: tidal marsh restoration

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Status: breached to tidal action, 2006

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  • C. Benton

Vegetation development after breach April 2008 September 2009

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Ponds A8, A5, A7: tidal marsh restoration, with management

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  • C. Benton

Status: construction complete, pond to open spring 2011

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Pond A6: tidal marsh restoration

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Status: to be breached October 2010

  • C. Benton
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2.4 mile Bay Trail segment:

  • pened Sept 20, 2010
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Pond E8A: tidal marsh restoration

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Status: under construction, completion expected fall 2011

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Eden Landing: 3.8 mile trail and kayak launch Status: final designs complete

  • C. Benton