The Occidental Arts & Ecology Center (OAEC) is a non-profit organization and intentional community located near the town of Occidental in the western part of Sonoma County, California, the traditional homeland of the Southern Pomo and Coast Miwok. It is situated on an 80-acre ecological reserve in the Dutch Bill Creek Watershed, near the Russian River. OAEC is a research, demonstration, education, advocacy, and community-organizing center that develops strategies for regional-scale community resilience.
Founded in 1994, OAEC’s projects and partnerships address current urgent crises through permaculture and ecological design, biointensive horticulture, conservation hydrology, restoration ecology, strategic organizing methods, and democratic self-governance.
OAEC hosts organizational retreats for networks, public agencies, foundations, and other groups working towards social and environmental change.
OAEC’s mission is to support systems of governance and economy that are ecologically restorative, socially just, and culturally rejuvenating. OAEC trains and supports “whole communities” — schools, public agencies, tribes, urban social justice organizations, watershed groups, and others — to design and cultivate resilience to mounting ecological, social, and economic challenges.
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The land OAEC resides on was developed in 1974 as The Farallones Institute Rural Center, an independent association of scientists, architects, and horticulturists who founded a center for teaching and research in appropriate technology, organic gardening, and sustainable design. The Farallones Institute established the original garden, known as the Mother Garden. In 1982 the Mother Garden became certified organic by CCOF and is currently the 7th oldest garden in California to receive this organic certification. The Mother Garden was also granted the first ever organic agricultural easement in the United States by the Sonoma County Land Trust in 1994, requiring that the Mother Garden remain in organic agricultural production into perpetuity.
In 1994 OAEC was founded by a group of friends as a non-profit and intentional community, the Sowing Circle. Over the years, landmark moments include the beginning of the OAEC Nursery Plant Sale in 1995, which continues seasonally from April to October. OAEC has offered Permaculture Design Certification courses since 1996, making it one of the oldest permaculture institutions in the country. In 2004, the WATER Institute was established to organize communities around Conservation Hydrology for the stewardship, advocacy, and protection of watersheds. In 2009 the Bring Back the Beaver campaign was officially launched to advocate for and educate about the importance of native beavers as a keystone species for healthy watersheds in California. In 2024, OAEC was awarded Non-Profit of the Year for California Senate District 2.
OAEC’s Mother Garden Biodiversity Program curates, propagates, and shares thousands of varieties of edible, medicinal, and ornamental plants, with a focus on perennials. The plant collection and seed bank emphasize food crops of special genetic, cultural, and historic importance that are appropriate to the Bay Area bioregion. Each year, the Mother Garden Biodiversity Program hosts three of the largest free seed exchanges in California - Bioneers, the Ecological Farming Association Conference, and the West Sonoma County Seed Swap. The onsite gardens provide a classroom for onsite courses and food for residents and retreat guest throughout the year.
The Mother Garden Nursery is 100% California Certified Organic. Plant sales run every weekend from April - October.
Resilient Community Design is a methodology that has emerged from OAEC, based on 30 years of researching, modeling, and teaching ecological design to whole communities. It is a modified version of permaculture that focuses on groups, rather than individuals. It features community-based and participatory land assessment and planning that is rooted in the idea that all people have the right, the knowledge, and the ability to best determine an ecologically regenerative, economically viable, and socially just future for themselves in their place.
In 2004, OAEC established the WATER Institute (Watershed Advocacy, Training, Education & Research) to promote the importance of healthy watersheds to healthy communities. The WATER Institute promotes community-based watershed literacy and action by:
OAEC demonstrates Conservation Hydrology restoration techniques at the 80-acre demonstration site. From 1997 to 2003, the WATER Institute ran its flagship program, Basins of Relations: Starting and Sustaining Community Watershed Groups, which trained over 40 California watershed groups. Co-founder Brock Dolman coined the now viral watershed restoration meme Slow it, Spread it, Sink it, Store it, Share it, referring to slowing water down and spreading it out onto the landscape so that it has time to rehydrate the water table. These and many other core WATER Institute principles can be found in the Basins of Relations: A Citizen’s Guide to Protecting and Restoring Our Watersheds guidebook.
In 2009, as a response to the drastic decline of coho salmon in the Russian River watershed, the WATER Institute launched a Bring Back the Beaver Campaign to educate citizens about the importance of beaver for watershed and ecosystem resiliency. North American Beavers are what biologists call a “keystone species” as the habitat they create benefits many other species. Their dams improve water quantity and quality, increase late-season stream flow, and reduce the impacts of flooding. Beaver bank burrows and food caches provide critical habitat for many native and endangered California species. To improve water supply quality and quantity and increase resilience to drought, wildfire, and climate change, the WATER Institute works to integrate beaver management into California policy and regulation.
In 2023, after over a decade of work by the Bring Back the Beaver Campaign, OAEC worked with the California Department of Fish and Wildlife (CDFW) to change state beaver policies to recognize that beaver are a California native species and that they provide ecological benefits in diverse landscapes across the state. At CDFW’s request, OAEC is creating a statewide Beaver Coexistence Program to help farmers and other landowners live with and benefit from the presence of beaver in the landscape. Major milestones in this campaign were OAEC’s support for moving the State into collaborations with both the Maidu Summit Consortium and the Tule River Tribe in carrying out the first beaver conservation translocations in California in nearly 75 years.
OAEC’s 70-acre wildlands preserve and field campus honors the legacy of Coast Miwok/Southern Pomo land stewardship practices and seeks to restore keystone ecological cycles of fire, carbon, and life through “regenerative disturbance.” Since 1994, staff, volunteers, and students have been steadily working to restore healthy mixed hardwood and conifer forests, coastal prairie, and riparian plant and animal communities through active stewardship and wildtending methods. Core elements of the wildlands program include the “Fuels to Flows” Campaign, local Fireshed x Watershed Community Organizing, Workforce Development in Holistic Vegetative Management, and Biological Monitoring/Citizen Science.
OAEC serves as a retreat center for organizations, networks, public agencies, foundations, and others working towards social and environmental change. OAEC has hosted hundreds of groups and tens of thousands of organizers, teachers, land-stewards, tribal members, farmers, policymakers, government agency staff, philanthropists, and advocates from all over California, the U.S., and around the world to plan solutions for pressing ecological and social issues.
OAEC gives administrative support to new social change organizations who don’t have or need their own 501(c)(3) nonprofit status by providing accounting, tax, HR, strategy and fundraising support.
OAEC has produced various publications including Basins of Relations: A Citizen’s Guide to Protecting our Watersheds, Beaver in California: Creating a Culture of Stewardship, Russian River Watershed Map, and cookbook.
Permaculture is an approach to land management and settlement design that adopts arrangements observed in flourishing natural ecosystems. It includes a set of design principles derived using whole-systems thinking. It applies these principles in fields such as regenerative agriculture, town planning, rewilding, and community resilience. The term was coined in 1978 by Bill Mollison and David Holmgren, who formulated the concept in opposition to modern industrialized methods, instead adopting a more traditional or "natural" approach to agriculture.
This is an index of conservation topics. It is an alphabetical index of articles relating to conservation biology and conservation of the natural environment.
Bruce Charles "Bill" Mollison was an Australian researcher, author, scientist, teacher and biologist. In 1981, he was awarded the Right Livelihood Award "for developing and promoting the theory and practice of permaculture".
Bioregionalism is a philosophy that suggests that political, cultural, and economic systems are more sustainable and just if they are organized around naturally defined areas called bioregions. Bioregions are defined through physical and environmental features, including watershed boundaries and soil and terrain characteristics. Bioregionalism stresses that the determination of a bioregion is also a cultural phenomenon, and emphasizes local populations, knowledge, and solutions.
The following outline is provided as an overview of and topical guide to sustainable agriculture:
David Holmgren is an Australian environmental designer, ecological educator and writer. He is best known as one of the co-originators of the permaculture concept with Bill Mollison.
The National Estuarine Research Reserve System is a network of 30 protected areas established by partnerships between the National Oceanic and Atmospheric Administration (NOAA) and coastal states. The reserves represent different biogeographic regions of the United States. The National Estuarine Research Reserve System protects more than 1.3 million acres of coastal and estuarine habitats for long-term research, water-quality monitoring, education, and coastal stewardship.
The Napa River is a river approximately 55 miles (89 km) long in the U.S. state of California. It drains a famous wine-growing region called the Napa Valley, in the mountains north of the San Francisco Bay. Milliken Creek and Mt. Veeder watersheds are a few of its many tributaries. The river mouth is at Vallejo, where the intertidal zone of fresh and salt waters flow into the Carquinez Strait and the San Pablo Bay.
Bioswales are channels designed to concentrate and convey stormwater runoff while removing debris and pollution. Bioswales can also be beneficial in recharging groundwater.
Sonoma Creek is a 33.4-mile-long (53.8 km) stream in northern California. It is one of two principal drainages of southern Sonoma County, California, with headwaters rising in the rugged hills of Sugarloaf Ridge State Park and discharging to San Pablo Bay, the northern arm of San Francisco Bay. The watershed drained by Sonoma Creek is roughly equivalent to the wine region of Sonoma Valley, an area of about 170 square miles (440 km2). The State of California has designated the Sonoma Creek watershed as a “Critical Coastal Water Resource”. To the east of this generally rectangular watershed is the Napa River watershed, and to the west are the Petaluma River and Tolay Creek watersheds.
The Russian River is a southward-flowing river that drains 1,485 sq mi (3,850 km2) of Sonoma and Mendocino counties in Northern California. With an annual average discharge of approximately 1,600,000 acre feet (2.0 km3), it is the second-largest river flowing through the nine-county Greater San Francisco Bay Area, with a mainstem 115 mi (185 km) long.
In permaculture, sheet mulching is an agricultural no-dig gardening technique that attempts to mimic the natural soil-building process in forests. When deployed properly and in combination with other permaculture principles, it can generate healthy, productive, and low maintenance ecosystems.
The Wild Farm Alliance (WFA) is a non-profit organization dedicated to increasing biodiversity by expanding the idea and practice of wild farming.
Audubon Canyon Ranch (ACR) is a 501(c)(3) not-for-profit environmental conservation and education organization headquartered in Stinson Beach, Marin County, California, on the eastern shore of Bolinas Lagoon. The lands upon which ACR operates are within the ancestral territories of the Coast Miwok, Southern Pomo and Wappo peoples. ACR recognizes that Indigenous communities are very much alive today and striving to protect and maintain relationships with cultural and natural resources on ACR lands; they acknowledge that Indigenous lands are occupied by them and others.
Stream restoration or river restoration, also sometimes referred to as river reclamation, is work conducted to improve the environmental health of a river or stream, in support of biodiversity, recreation, flood management and/or landscape development.
Regenerative design is about designing systems and solutions that work with or mimic the ways that natural ecosystems return energy from less usable forms to more usable forms. Regenerative design uses systems thinking and other approaches to create resilient and equitable systems that integrate the needs of society and the well-being of nature. Regenerative design is an active topic of discussion in engineering, economics, medicine, landscape design, food systems, and urban design & community development generally.
Alhambra Creek is a stream in Contra Costa County, in the East Bay region of the San Francisco Bay Area in northern California.
The Cosumnes River Preserve is a nature preserve of over 51,000 acres (210 km2) located 20 miles (30 km) south of Sacramento, in the US state of California. The preserve protects a Central Valley remnant that once contained one of the largest expanses of oak tree savanna, riparian oak forest and wetland habitat in North America. Agricultural development has changed the landscape from groves of oaks and tule marshes to productive farmlands.
The Butte Creek Ecological Preserve and Butte Creek Canyon Ecological Reserve consist of 2 distinct management units, the Preserve, aka the "Honey Run Unit" 93 acres (0.38 km2) owned and managed by the Chico State Research Foundation, and the "Virgin Valley" and "Canyon" Units 287 acres (1.16 km2), owned and managed by the California Department of Fish and Wildlife. The units are located east of Chico along Butte Creek in northern California. This stretch of Butte Creek is spawning habitat for the largest population of Central Valley spring-run Chinook salmon, an evolutionarily significant unit that is listed as threatened under the Endangered Species Act. Fall-run Chinook salmon and steelhead trout also spawn in the creek.
Brad Stewart Lancaster is an expert in the field of rainwater harvesting and water management, sun & shade harvesting and community-stewarded native food forestry. He is also a permaculture teacher, designer, consultant, live storyteller and co-founder of the Dunbar/Spring Neighborhood Foresters, and Desert Harvesters, both non-profit organizations.