Coastal Resiliency

Audubon is advancing nature-based strategies to help coastline communities weather the impacts of climate change.

Overhead Shot of Aramburu Island

Coastal Resiliency Basics 

What is coastal resiliency?

Coastal resiliency is a community’s ability to rebound after an extreme weather event.  Resilient, healthy coastal ecosystems serve as the first line of defense for coastal communities facing stronger storms, more frequent flooding, and sea level rise.  These resilient coastal ecosystems, in turn, greatly benefit bird communities. Audubon is advancing nature-based strategies to help coastline communities weather the impacts of climate change.

Audubon’s conservation, policy, and science teams prioritize potential restoration sites in and around socially vulnerable communities to protect both birds and people where they are at highest risk from sea level rise. 

Audubon's Coastal Resiliency Work

Aramburu Island

Aramburu Island is a 17-acre human-made island located in Richardson Bay.  The island was created in the 1960s from the dredge spoils from a nearby boating channel. Over many years, the unmanaged island became host to a wide variety of non-native and invasive plants and the banks significantly eroded due to wave action. 

In 2007, after the Cosco-Busan oil spill, Audubon California staff observed a large percentage of birds in Richardson Bay were using Aramburu Island as refuge from the toxic waters.  This observation led Audubon California to designate Aramburu Island as critical bird habitat and quickly made plans for an enhancement project. 

The Enhancement Plan improved aquatic, wetland, and upland habitats for a range of local species, stabilized the rapidly eroding eastern shoreline, and helped the island and surrounding communities adapt to sea level rise.  Since the completion of construction in 2012, thousands of native plants have been installed and hundreds of adult and youth volunteers have contributed thousands of hours restoring and maintaining the island.  Today, Richardson Bay Audubon Center & Sanctuary staff host restoration workdays where volunteers can actively contribute to this ongoing restoration success.

Aramburu Island Shoreline Construction
Aramburu Island Volunteer Cleanup
Aramburu Island Shoreline Construction

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Sonoma Creek

Sonoma Creek runs from Sonoma County into the San Pablo Bay on the northernmost end of the greater San Francisco Bay. 

The California Gold Rush caused a rapid increase in human population across California.  During this time, mining and agricultural practices skyrocketed, causing a devastating effect on one of California’s most sensitive ecosystems- coastal wetlands.  In the San Francisco Bay Area, Sonoma Creek marsh displays the scars of these practices- poor hydrology that causes stagnant pools and form algal mats, harbor mosquitos, and suppress native vegetation as well as steep levees, which cut off the natural movement of plants, animals, and water.

Audubon California partnered with the Marin-Sonoma Mosquito and Vector Control District and the San Pablo Bay National Wildlife Refuge to restore this wetland to its highest potential. The core of the project involved constructing a network of tidal channels within the marsh to drastically improve tidal exchange, nutrient cycling, and provide habitat to a myriad of marsh-dependent wildlife species. The channels provide spawning and feeding grounds for endangered and commercial fish.

Improving hydrology improved water quality by increasing circulation and drastically reducing the amount of pesticides applied to areas  of ponded water that currently facilitate heavy mosquito production.  The project also had a vital climate change adaptation component. The construction of a gently-graded high marsh transition zone reduced storm surge flooding of adjacent private lands and provide crucial high tide refuges for rails and small mammals. 

Southern California Estuaries  

A string of lagoons can be found along the coast of San Diego County, providing unique habitat for migrating birds, protecting communities from storms and sea level rise, and sequestering large amounts of carbon. However, two major sites, Buena Vista Lagoon and Mission Bay, remain impacted from development. Audubon CA, Buena Vista Audubon, and San Diego Audubon are working together with local community and indigenous partners to restore these impacted areas through hands on restoration events, storytelling, and advocacy.

Through this community-driven project, we will work together to heal these lagoons and ensure that they become healthy and thriving ecosystems for people and birds.

San Francisco Bay Conservation Strategy

  • Audubon California created a San Francisco Bay Conservation Strategy that aims to protect, restore, and build resilient coastal ecosystems in San Francisco Bay.
  • Audubon’s conservation, policy, and science teams prioritized potential restoration sites in and around socially vulnerable communities to protect both birds and people where they are at highest risk from sea-level rise
  • Read our Blueprint for Resilient Coastal Communities in San Francisco Bay

Policy Work

Audubon is the voice for birds from Town Halls to the U.S. Capitol. We will bring the full power of our expansive network to bear on behalf of the most important policies that will lead to protection for birds, ecosystem restoration and resilience, and healthy coastal habitats.

California

  • Secure state funding that prioritizes investments in natural infrastructure solutions to address climate change and sea-level rise, and legislation to improve sea-level rise adaptation planning and create other incentives for natural infrastructure projects.
  • Leverage our science expertise and Audubon network to advocate for investment in nature-based climate solutions, such as wetland and eelgrass restoration.

    • Inform and work with state agencies, including the Coastal Conservancy, Coastal Commission, and Ocean Protection Council to create a resilient coastline.  

Federal

  • Advance San Francisco Bay Restoration Act and appropriations for the EPA Geographic Program.
  • Support federal bills that protect seabirds, fisheries, and coastal communities from climate change.
  • Work with Congress to ensure that there are plenty of forage fish in the ocean for seabirds, make fisheries climate-ready, and protect and restore vital estuarine ecosystems in coastal places that sea and shorebirds need to nest, rest, and forage for food.

Black Oystercatcher

Latin:  Haematopus bachmani

Illustration for Black Oystercatcher

Caspian Tern

Latin:  Hydroprogne caspia

Illustration for Caspian Tern

Snowy Plover

Latin:  Charadrius nivosus

Illustration for Snowy Plover

American Avocet

Latin:  Recurvirostra americana

Illustration for American Avocet

News & Updates

Cosco Busan Oil Spill 10-Year Anniversary Photo Gallery
Conservation

Cosco Busan Oil Spill 10-Year Anniversary Photo Gallery

Thousands of birds died and shorelines were blackened after 53,000 gallons of oil spilled following Nov. 7, 2007 accident. This photo gallery shows some of the damage and recovery efforts.

Richardson Bay Annual closure protects important migratory bird species
Conservation

Richardson Bay Annual closure protects important migratory bird species

Sanctuary waters in Richardson Bay are closed to all boat traffic October 1st through March 31st and in-water activities (including kayaks & stand-up paddleboards, or SUPs) from October 1st through March 31st to protect over-wintering and migratory waterbirds.

A visit to a waterbird’s gas station
San Francisco Bay

A visit to a waterbird’s gas station

San Francisco Bay is an integral part of the Pacific Flyway. A recent visit to a South Bay restoration site reveals birds fueling up for their migration complete with kleptoparasitism.

Seasonal Biological Aides at Richardson Bay enhance conservation and engagement work
Conservation

Seasonal Biological Aides at Richardson Bay enhance conservation and engagement work

Meet the three seasonal biologists and learn about their work on restoration, conservation, and engagement at Richardson Bay Audubon Center & Sanctuary in Tiburon, California

Bayside signage approved in Tiburon
Bird-Friendly Communities

Bayside signage approved in Tiburon

Audubon California and members of its San Francisco Bay Committee win unanimous approval from the Tiburon Town Council to create interpretive signs along Richardson Bay. These signs will engage and connect the Tiburon community with this natural habitat, its history and the Richardson Bay Audubon Center & Sanctuary.

Proposed EPA cuts will hit California habitat hard

San Leandro shoreline in San Francisco Bay. Photo: Gareth Bogdanoff

News of proposed budget cuts at the Environmental Protection Agency bode ill for conservation in San Francisco Bay and San Diego, as two major programs are on the chopping block.

In San Francisco Bay, the EPA looks to cut its entire $4.8 million budget for clean water and wetlands restoration programs. This is particularly bad news, as San Francisco Bay has never received a proportionate share of federal restoration funding.

Last year, residents of Bay Area communities approved Measure AA, which will raise about $500 million over the next 20 years for wetlands restoration. Leaders had intended to use this money to leverage greater investment from the federal government.

The EPA is also proposing to cut the $3 million it spent last year on cleaning up pollution in the Tijuana Estuary down to $275,000. This area is the last remaining large wetland in Southern California, and is an Important Bird Area. Endangered Ridgeways Rails and Light-footed Rails make great use of the area.

In addition to cuts specifically targeting California, we also learned of proposed cuts that will go into effect nationwide, but will certainly impact things we Californians care about, such as gutting programs that test coastal water quality, educate our children about nature, address climate change, and reduce pollution in communities suffering the most.

Please raise your voice against these cuts by sending an email to your members of Congress.

Pacific herring are spawning in San Francisco Bay and the birds are loving it
Audublog

Pacific herring are spawning in San Francisco Bay and the birds are loving it

Herring are critical food for Pacific Flyway birds in our urban estuary.

The hidden beauty of marshland

Before the enhancement (left), Sonoma Creek had "dead zones," where vegetation could no longer grow. Now (right), water is channelled and greenery is returning to the areas. Photo: Google Earth (left), Courtney Gutman (right)

Courtney Gutman got an aerial view of the progress made at our Sonoma Creek enhancement project which we completed in November. Gutman is our restoration project manager from the Richardson Bay Center & Sanctuary and oversaw construction on the 400-acre tidal marsh in the greater San Francisco Bay.

Within weeks of finishing the construction, the team could already see a myriad of vegetation and wildlife coming back to the area, including a variety of small shorebirds and pickleweed, a native succulent that absorbs saltwater. 

The Sonoma Creek enhancement is the first project of its kind on a pre-existing marsh. Before the project, sea water was able to wash in during high tide, but with no way for it to drain, stagnant pools became perfect breeding ground for mosquitoes and an imperfect breeding ground for plant life and other animals. To solve this problem, we dug canals to help with drainage of the area. Natural channels can now form in areas that were once stagnant, contributing to a healthier marshland. We also moved about 30,000 cubic yards of soil to create a transition ramp that slows storm surges and gives animals somewhere to go when the tide gets too high. 

Gutman says people are starting to see estuaries beyond their importance for wildlife, plants, and biodiversity.

“Now on top of that we’re seeing how important they are for combatting climate change. They’re truly our natural barriers for rising sea levels,” she says. 

For more information about the project, visit our Sonoma Creek page

Look who's back

Photo: Bob Hinz

Our friendly Bald Eagle is back at our Richardson Bay Center & Sanctuary, this time using the newly restored Aramburu Island shoreline.

San Francisco Bay loses one of its most dedicated champions
Audublog

San Francisco Bay loses one of its most dedicated champions

Sylvia McLaughlin was one of the original founders of Save the Bay -- and also served as a National Audubon Society board member.

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