California Biodiversity
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California Biodiversity
California contains one of the richest concentrations of biological diversity in North America. Its extraordinary variety of climates, geology, elevations and habitats supports thousands of native plant and animal species, many found nowhere else. Coastal waters, redwood forests, oak woodlands, Sierra Nevada mountains, Central Valley wetlands, chaparral, grasslands, deserts, rivers, estuaries, vernal pools and offshore islands together create a remarkable biological mosaic.
The state's biodiversity is also under considerable pressure. Urban development, agricultural conversion, habitat fragmentation, altered rivers, invasive species, pollution, wildfire, drought and climate change are transforming ecosystems throughout California. Conservation therefore increasingly involves more than protecting individual rare species. State agencies, scientists, conservation organizations, Tribes, landowners and communities are attempting to conserve entire landscapes, restore ecological processes and reconnect fragmented habitats.
California has become an important testing ground for large-scale biodiversity conservation. State programs combine endangered-species protection, regional conservation planning, habitat restoration, wildlife corridors, climate adaptation, community science and the goal of conserving 30 percent of the state's lands and coastal waters by 2030.
A Global Biodiversity Hotspot
California's exceptional biodiversity reflects its remarkable environmental variation. The state extends from temperate rainforests along the North Coast to some of the hottest and driest deserts in North America. Elevations range from below sea level in Death Valley to alpine environments in the Sierra Nevada.
California supports more native plant diversity than any other U.S. state. Large numbers of plants are endemic, meaning they occur naturally nowhere else. Specialized habitats such as serpentine soils, vernal pools, coastal dunes, desert springs and isolated mountain ranges support species with extremely restricted distributions.
Bird diversity is similarly impressive. More than 600 bird species have been recorded in California, while wetlands, farmland and coastal habitats make the state a crucial part of the Pacific Flyway used by millions of migratory birds.
California's marine environment adds another major dimension. Kelp forests, rocky intertidal zones, estuaries, offshore islands, submarine canyons and open ocean habitats support marine mammals, seabirds, fishes, invertebrates, algae and other organisms.
Statewide Conservation and the 30x30 Strategy
California increasingly approaches biodiversity through landscape-scale conservation. The state's Natural Community Conservation Planning program attempts to protect biological diversity while allowing compatible development and economic activity. Unlike approaches centered on individual endangered species, regional conservation plans can protect interconnected habitats supporting many species simultaneously.
California's 30x30 initiative seeks to conserve 30 percent of the state's lands and coastal waters by 2030. The strategy connects biodiversity protection with climate resilience, ecosystem restoration and public access to nature.
Spatial planning tools such as Areas of Conservation Emphasis combine information about wildlife, vegetation, habitat connectivity and climate resilience. Such data can help governments and conservation organizations identify landscapes where protection or restoration would provide particularly large ecological benefits.
The California Biodiversity Council coordinates conservation programs across state, federal and local agencies. Other programs provide funding for habitat acquisition, restoration, wildlife corridors and regional conservation planning.
Endangered Species and Habitat Protection
California contains hundreds of species facing serious threats from habitat loss, fragmentation, environmental change and small population size.
The California Endangered Species Act protects roughly 250 listed plants and animals. State agencies conduct scientific reviews, regulate activities affecting protected species and develop recovery strategies.
Current recovery planning includes species such as the Clear Lake hitch, San Bernardino kangaroo rat, Mohave ground squirrel and rare native plants. Conservation programs are also addressing declining pollinators such as several bumble bee species.
The recovery of the California red-legged frog in Yosemite demonstrates the potential of sustained restoration. After years of coordinated work, thousands of frogs have been returned to habitats where the species had disappeared.
Some conservation challenges remain extraordinarily difficult because protecting individual organisms cannot compensate for disappearing landscapes. Mountain lions, desert tortoises, salmon, migratory birds and many other animals require large connected habitats to maintain viable populations.
Habitat Connectivity and Wildlife Corridors
Roads, cities, agriculture and other development have divided many California ecosystems into isolated fragments. Wildlife corridors have consequently become a major conservation priority.
Connecting landscapes allows animals to move between feeding, breeding and seasonal habitats. Connectivity also permits genetic exchange between populations and may become increasingly important as climate change forces species to shift their ranges.
Southern California is developing wildlife crossings intended to reconnect habitat for mountain lions, bighorn sheep, bears and other animals separated by major highways.
Statewide conservation planners have also revisited California's network of ecological linkages to identify remaining gaps between protected landscapes.
Habitat connectivity is particularly important because isolated reserves may become less suitable as temperatures, rainfall and wildfire regimes change.
Climate Change and Biodiversity
Climate change is affecting nearly every California ecosystem.
Rising temperatures, severe drought, changing precipitation, marine heat waves, wildfire and altered stream flows are modifying habitats faster than some species may be able to adapt.
Research on California plants indicates that some populations may not evolve quickly enough to keep pace with changing environmental conditions. Scientists are therefore studying genetic variation that could help identify populations better adapted to heat, drought or other future conditions.
Climate refugia are another increasingly important conservation concept. These are landscapes expected to remain relatively stable despite regional warming. Protecting such places could provide long-term survival areas for species whose current habitats become unsuitable.
Studies of Joshua trees, California oaks and other native plants are helping scientists identify potential refugia and populations with climate-resilient traits.
Central Valley Wetlands and the Pacific Flyway
California's Central Valley once contained enormous expanses of wetlands, rivers and riparian forests. More than 90 percent of its historical wetlands have disappeared as the region was converted to agriculture and cities.
Yet the Central Valley remains one of North America's most important migratory-bird landscapes.
Managed wetlands, wildlife refuges and flooded agricultural fields provide habitat for shorebirds, ducks, geese and other species moving along the Pacific Flyway.
Programs such as BirdReturns demonstrate how agriculture and biodiversity conservation can sometimes coexist. Farmers can receive incentives to temporarily flood fields precisely when migrating birds need habitat.
This approach has created tens of thousands of acres of temporary wetlands and attracted large numbers of birds.
The system also illustrates a broader conservation challenge: protected land alone is often insufficient. Wetlands require water, active management and adequate staffing to function as wildlife habitat.
Rivers, Salmon and Freshwater Biodiversity
California's freshwater ecosystems support exceptional biodiversity but have experienced extensive decline.
Dams, water diversions, agriculture, development, pollution, invasive species and altered river flows have transformed many rivers, wetlands and estuaries.
California's native salmon, steelhead and trout are important indicators of freshwater ecosystem health. Restoration projects are removing migration barriers, improving spawning areas, reconnecting floodplains and restoring cold-water habitat.
Naturally reproduced juvenile coho salmon have recently been documented in parts of the upper Russian River basin where they had not been seen for decades, demonstrating the potential benefits of long-term recovery programs.
Large restoration efforts are also occurring along the Eel, San Joaquin, Sacramento and Feather rivers and throughout the Sacramento-San Joaquin Delta.
Rather than focusing only on maintaining fixed quantities of environmental water, scientists increasingly advocate restoring natural river processes such as seasonal flooding, sediment movement and changing flow patterns.
Vernal Pools
California vernal pools are among the state's most distinctive freshwater habitats.
These shallow seasonal wetlands fill during winter rains and dry during warmer months. Their unusual hydrology has produced specialized ecological communities.
Hundreds of plant species occur in California vernal pools, with a remarkably high proportion found nowhere else. Specialized crustaceans, amphibians, insects and native bees also depend on these habitats.
Jepson Prairie in the Central Valley protects an important surviving complex of vernal pools and native grasslands.
Because vernal pools are often found on flat land attractive for development or agriculture, much of their original distribution has disappeared.
California Deserts
California's deserts are sometimes mistakenly viewed as biologically barren. In reality, the Mojave, Colorado and Great Basin desert regions contain substantial biological diversity.
Differences in elevation, geology, rainfall and soil create many specialized habitats. Desert ecosystems support tortoises, reptiles, mammals, birds, insects, native grasses, shrubs, wildflowers and unique microbial communities.
Rare desert springs and oases provide habitat for highly localized species such as desert pupfish.
The Chuckwalla National Monument protects landscapes at the transition between the Mojave and Sonoran deserts, including desert tortoise habitat, rare plants and important ecological corridors.
Millions of additional acres are managed through federal conservation lands and the Desert Renewable Energy Conservation Plan, which attempts to balance renewable energy development with ecosystem protection.
Off-highway vehicle use, invasive plants, development, renewable-energy infrastructure and climate change remain significant pressures on desert habitats.
Rare Native Plants
California's extraordinary plant diversity includes numerous species occupying extremely small geographic ranges.
Examples include King's gold, Palmer's jackass-clover, Panamint desert-aster, Mt. Diablo fairy-lantern, Mendocino Coast paintbrush and Shasta maidenhair fern.
Some species survive only in unusual soils, springs, dunes, wetlands or isolated mountain habitats. Others were identified scientifically only recently.
Such plants illustrate why biodiversity conservation requires protecting ecological communities as well as familiar wildlife. A seemingly small patch of habitat can contain species found nowhere else on Earth.
Native plants also form the ecological foundation supporting insects, pollinators, birds, mammals and soil organisms.
Forests, Redwoods and Fire Ecology
California forests range from coastal redwoods to Sierra Nevada conifer forests and oak woodlands.
Many have been altered by logging, development and more than a century of fire suppression.
Large restoration projects are attempting to reverse some of these effects. Redwood restoration programs are removing old logging roads, restoring streams and thinning densely regenerating forests to accelerate development of complex old-growth characteristics.
Fire management is becoming increasingly central to biodiversity conservation.
Many California ecosystems evolved with recurring fire. Prescribed burning and Indigenous cultural burning can reduce excessive fuel accumulation while supporting native vegetation and improving landscape resilience.
However, fire is not universally beneficial. Southern California chaparral can be damaged when fires occur too frequently, particularly when invasive grasses encourage repeated burning.
Effective conservation therefore requires fire strategies adapted to individual ecosystems rather than a single statewide approach.
Indigenous Stewardship and Cultural Fire
Indigenous communities managed California landscapes for thousands of years before modern fire suppression and industrial land management.
Cultural burning was used to maintain plant communities, improve habitat, encourage useful species and reduce fuel accumulation.
Contemporary conservation programs increasingly recognize the value of Indigenous ecological knowledge and Tribal stewardship.
Projects involving the return of land to Tribes, including acreage in the Big Chico Creek watershed, combine cultural stewardship with salmon restoration, wildfire resilience and protection of sensitive habitats.
The expansion of cultural and prescribed burning also represents a significant shift in California's historical relationship with fire.
Coastal and Marine Biodiversity
California's coastline supports some of the richest marine ecosystems in North America.
Kelp forests are particularly important. Giant and bull kelp create three-dimensional underwater habitat supporting fishes, invertebrates, marine mammals and numerous other species.
Northern California bull kelp forests experienced dramatic declines following marine heat waves, sea-star wasting disease and population explosions of purple sea urchins.
Restoration increasingly focuses on recovering ecological relationships rather than simply planting kelp. One major effort involves breeding endangered sunflower sea stars, a keystone predator that consumes sea urchins.
Scientists hope restoring sea stars could eventually help rebalance kelp ecosystems.
Long-term monitoring along the California coast also tracks algae, mollusks, sea stars, marine mammals and other organisms.
Marine Heat Waves and Changing Oceans
Ocean warming, acidification, oxygen loss and marine heat waves are altering California coastal ecosystems.
Long-term research on San Diego kelp forests shows substantial ecological changes during periods of unusually warm water.
Scientists are developing coastwide kelp datasets and genetic monitoring systems to understand how marine habitats respond.
California's Ocean Protection Council tracks indicators including kelp, marine wildlife, coastal habitats, water quality, acidification and other climate-related stressors.
These programs reflect a broader shift toward ecosystem-based marine management.
Salton Sea Biodiversity
The Salton Sea remains one of California's most unusual and environmentally stressed ecosystems.
As the lake shrinks, changing salinity, habitat loss and exposed lakebed create major ecological and public-health concerns.
Yet the Salton Sea remains extremely important for migratory birds traveling along the Pacific Flyway.
New habitat projects are creating shallow aquatic environments intended to support birds while reducing dust from exposed shoreline.
California has also created a Salton Sea Conservancy to coordinate long-term restoration and ecological management.
Research suggests some shorebirds may benefit from newly forming shallow wetlands even as fish-dependent birds lose deeper-water habitat.
Working Lands and Biodiversity
Agriculture and ranching occupy large portions of California, making working lands important to statewide conservation.
Research on farms and ranches is examining whether grazing, water management, native vegetation and other practices can sustain wildlife while maintaining agricultural production.
Rice fields and other farmland can provide seasonal habitat for migratory birds.
Conservation programs increasingly compensate landowners for temporarily providing ecological services such as wetland habitat.
These efforts demonstrate a larger principle: achieving statewide biodiversity goals will require conservation beyond parks and wildlife refuges.
Community Science
Community science has become an increasingly important part of California biodiversity research.
Bioblitzes organized by the California Academy of Sciences, California State Parks and other organizations encourage residents to document plants, animals and fungi using platforms such as iNaturalist.
During the 2025 City Nature Challenge alone, California participants recorded more than 173,000 observations representing more than 7,700 species.
California has also launched its first statewide Breeding Bird Atlas, mobilizing thousands of volunteers to document where birds reproduce.
Community observations are increasingly being connected directly with government biodiversity databases.
The California Biodiversity Data Exchange links state wildlife information with observations from the California Academy of Sciences and iNaturalist, allowing community-generated records to contribute to conservation decisions.
New Technologies for Biodiversity Science
Modern biodiversity monitoring increasingly combines field biology with genetics, satellites, artificial intelligence and large databases.
Environmental DNA, or eDNA, allows scientists to detect organisms from genetic material left in water or soil.
Researchers in the Sacramento-San Joaquin Delta are using eDNA metabarcoding to identify many species from small traces of biological material.
Soil DNA studies at restoration sites are revealing fungi, plants, mammals and other organisms that conventional surveys might overlook.
California scientists have also developed a large genetic barcode library for coastal invertebrates and algae.
Satellite imagery is helping managers assess wildfire damage and vegetation recovery across large landscapes.
Tracking devices have generated more than a million detections of threatened Tricolored Blackbirds, revealing seasonal movements that can improve habitat protection.
Together, these technologies are making it possible to observe biodiversity at scales that would have been difficult only a generation ago.
Restoration at Landscape Scale
California biodiversity conservation increasingly emphasizes ecological restoration.
Projects are restoring rivers, wetlands, floodplains, estuaries, forests, desert habitats and coastal ecosystems.
Thousands of acres of former agricultural land in the San Joaquin Valley and elsewhere are being converted back into riparian forests and floodplain habitat.
Other projects are reconnecting tidal wetlands, restoring salmon streams, rebuilding redwood forests and recovering native vegetation following wildfire.
California has also streamlined some restoration permitting through programs designed to reduce administrative delays while maintaining protections for endangered species.
Restoration can provide benefits beyond biodiversity. Healthy wetlands can filter pollutants, recharge groundwater, store carbon and reduce flood risk. Forest restoration can reduce severe wildfire risk. Restored rivers and coastal habitats can improve recreation and strengthen local economies.
Continuing Challenges
Despite extensive conservation efforts, California biodiversity faces substantial long-term pressures.
Climate change may shift suitable habitat faster than many species can migrate or evolve. Development continues to fragment landscapes. Freshwater ecosystems compete with agricultural and urban demands for water. Invasive species alter deserts, rivers, wetlands and forests.
Wildfire presents an especially complex challenge because both too little and too much fire can damage ecosystems depending on location.
Conservation programs also depend on institutional capacity. Wildlife refuges, environmental agencies and restoration programs require sufficient staff, funding and scientific monitoring. Protecting land without maintaining ecological processes may not preserve biodiversity over the long term.
California's enormous population and economy also mean that conservation decisions frequently involve difficult choices involving housing, transportation, water, agriculture, energy and recreation.
Conclusion
California's biodiversity is the product of extraordinary geological, climatic and ecological diversity. From redwood forests and Sierra Nevada rivers to Central Valley wetlands, Mojave Desert springs and Pacific kelp forests, the state contains ecosystems and species of global significance.
Protecting this biological wealth increasingly requires moving beyond isolated preserves and individual endangered species. Habitat connectivity, restoration, climate refugia, sustainable working lands, Indigenous stewardship, community science and modern biodiversity monitoring are becoming essential parts of conservation.
California's experience also demonstrates that biodiversity protection is closely connected with broader environmental challenges. Healthy ecosystems provide water, carbon storage, flood protection, fisheries, recreation and resilience to climate change.
The future of California biodiversity will therefore depend not simply on how much land or ocean receives formal protection, but on whether ecological processes can continue functioning across entire landscapes. Long-term conservation will require sustained science, restoration, funding, community participation and cooperation among governments, Tribes, landowners and conservation organizations.
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California Biodiversity — Statewide Conservation, Policy and Planning
| California Department of Fish and Wildlife | CDFW | August 28, 2026 California's Wildlife Conservation Board approved nearly $44 million for projects involving Tribal stewardship, salmon recovery, watershed restoration, desert wildlife corridors and public access across 11 counties.
| California Department of Fish and Wildlife | CDFW | August 19, 2026 New state guidance addresses four bumble bee species being considered for protection under the California Endangered Species Act and recommends ways development and land-management projects can reduce impacts.
| California State Water Resources Control Board | State Water Board | August 19, 2026 California released a proposed update to protections for the Sacramento River and Bay-Delta that combines river-flow requirements, habitat restoration, scientific monitoring and billions of dollars in restoration commitments.
| California Department of Fish and Wildlife | CDFW | June 8, 2026 GPS monitoring showed five rehabilitated black bear cubs successfully established dens, hibernated and returned to the Northern California landscape following experimental fall releases.
| California Natural Resources Agency | CNRA | June 8, 2026 Return of 450 acres in the Big Chico Creek watershed to the Mechoopda Indian Tribe advances Tribal stewardship, salmon recovery, wildfire resilience and protection of sensitive species habitat.
| California Department of Water Resources | DWR | June 2, 2026 California's Urban Streams Restoration Program is designed to restore urban waterways while improving habitat connectivity, biodiversity, climate resilience and community stewardship.
| California Department of Fish and Wildlife | CDFW | May 29, 2026 The California Biodiversity Data Exchange links CDFW, the California Academy of Sciences and iNaturalist so community-science observations of sensitive species can more readily inform conservation and management decisions.
| Cassidee Shinn | California State Wildlife Action Plan | May 28, 2026 California's 2026 State Wildlife Action Plan update revises the Species of Greatest Conservation Need list and updates scientific resources. SWAP guides statewide priorities for preventing wildlife from becoming threatened or endangered.
| California Department of Fish and Wildlife | CDFW | May 28, 2026 California's Wildlife Conservation Board approved more than $80 million for projects involving habitat connectivity, salmon recovery, biodiversity hotspots, wildfire resilience, pollinators and public access across 16 counties.
| California Department of Fish and Wildlife | CDFW | May 6, 2026 Thirteen state and federal agencies developed shared conservation priorities for western monarch butterflies, focusing on habitat restoration, native plants, monitoring, research and coordinated management.
| California State Coastal Conservancy | Coastal Conservancy | April 24, 2026 The Coastal Conservancy awarded more than $44 million for projects including redwood restoration, Klamath tributary restoration, wetlands, coastal access and climate resilience.
| California State Water Resources Control Board | State Water Board | April 22, 2026 California's streamlined restoration permitting is shortening project approval times for rivers, wetlands and floodplains while supporting coho salmon and other biodiversity.
| California Natural Resources Agency | CNRA | April 10, 2026 The new Salton Sea Conservancy will oversee long-term habitat restoration and ecological management at a lake that remains critically important to birds on the Pacific Flyway.
| California Department of Fish and Wildlife | CDFW | April 7, 2026 Genomic research linked California's invasive nutria population to animals in the Pacific Northwest and produced tools that could improve eradication and invasive-species management.
| California Natural Resources Agency | CNRA | March 26, 2026 California announced more than $6.5 million for projects that mitigate transportation impacts by restoring habitat, planting trees and improving ecosystems. The projects will also add more than 2,200 acres toward California's 30x30 goal.
| California Natural Resources Agency | CNRA | March 2026 California announced research and restoration investments targeting marine biodiversity hotspots, kelp, eelgrass, estuaries, white abalone and fire-damaged marine protected areas.
| California Department of Fish and Wildlife | CDFW | 2026 California's Natural Community Conservation Planning program uses regional, ecosystem-scale planning to conserve biological diversity while allowing compatible economic and development activities. It provides an important alternative to conservation approaches focused on individual species.
| California Department of Fish and Wildlife | CDFW | 2026 California provides conservation-planning and habitat-acquisition grants supporting Natural Community Conservation Plans and federal Habitat Conservation Plans. These programs can protect large landscapes containing multiple species rather than isolated parcels.
| California Department of Fish and Wildlife | CDFW | 2026 The California Endangered Species Act protects approximately 250 listed species and their habitats. CDFW administers listing reviews, scientific research, permitting and recovery efforts for some of the state's most imperiled biodiversity.
| California Department of Fish and Wildlife | CDFW | 2026 California is developing formal recovery planning for species including Milo Baker's lupine, Clear Lake hitch, San Bernardino kangaroo rat and Mohave ground squirrel, illustrating the diversity of conservation challenges across the state.
| California Native Plant Society | CNPS | November 3, 2025 CNPS reviews California legislation affecting native plants, chaparral, wildfire management and biodiversity, including measures encouraging ecologically sensitive vegetation management.
| California Natural Resources Agency | CNRA | 2022 California's nature-based solutions strategy connects management of forests, wetlands, farms, deserts, grasslands and coastal habitats with carbon storage, biodiversity protection, water security and climate adaptation.
| California Natural Resources Agency | CNRA | n.d. California contains exceptional concentrations of native and endemic plants and animals, making it both a biodiversity center and a global biodiversity hotspot. The state links biodiversity protection with its 30x30 conservation strategy and climate resilience goals.
| California Department of Fish and Wildlife | CDFW | n.d. CDFW's species-status summaries document the condition of California's rare, threatened and endangered plants and animals. California contains a remarkably high proportion of the nation's plant and vertebrate diversity as well as many endemic species.
| California Department of Fish and Wildlife | CDFW | n.d. The Atlas of the Biodiversity of California provides a statewide introduction to species richness, habitat diversity, vegetation, landscape conservation, marine management, connectivity, watershed health and restoration.
| California Natural Resources Agency | California Biodiversity Council | n.d. The California Biodiversity Council coordinates state, federal and local conservation programs. Its work identifies dozens of programs that can contribute to protecting landscapes, restoring ecosystems and advancing the state's 30x30 objectives.
| California Department of Fish and Wildlife | CDFW | n.d. CDFW's statewide conservation programs encompass mammals, birds, reptiles, amphibians, fishes, invertebrates, plants, marine life, invasive species, protected areas, habitat restoration, connectivity and conservation planning.
| California Department of Fish and Wildlife | CDFW | n.d. Areas of Conservation Emphasis combines spatial information on wildlife, vegetation and habitats to map biodiversity, landscape connectivity and climate resilience. The system helps planners identify places of high conservation value.
| California Department of Fish and Wildlife | CDFW | n.d. California's Restoration Management Permit consolidates several wildlife and habitat authorizations into one process intended to accelerate restoration while preserving protections for rare species and ecosystems.
| California Department of Fish and Wildlife | CDFW | n.d. The Habitat Restoration and Enhancement Act provides a simplified permitting route for small voluntary projects restoring streams, wetlands and terrestrial habitat throughout California.
Endangered Species, Climate Change and Connectivity
| Lynn La | CalMatters | August 14, 2026 Staffing reductions at California wildlife refuges are affecting management of wetlands used by migratory birds. The report illustrates how biodiversity conservation depends not only on protected land but on continued active management.
| Jack Flemming | Los Angeles Times | July 11, 2026 Changes to federal Endangered Species Act regulations could have particularly large consequences in California because the state contains hundreds of federally protected species and some of the nation's richest remaining wildlife habitat.
| Caroline Petrow-Cohen | Los Angeles Times | May 16, 2026 Southern California is developing multiple wildlife crossings for mountain lions, bighorn sheep, bears and other animals. The projects are designed to reconnect habitats fragmented by major highways.
| Annika Hammerschlag | Los Angeles Times | May 12, 2026 Scientists are using conservation genomics to identify climate-resilient genetic variation in California organisms including redwoods and eelgrass. The approach could improve restoration as temperatures and disturbance regimes shift.
| Tiffany Yap | CalMatters | April 1, 2026 California has strengthened protection for several mountain lion populations, but fragmentation and habitat loss remain serious problems. The commentary highlights the importance of safeguarding landscapes as well as individual animals.
| Alastair Bland | CalMatters | April 2026 Creation of a Salton Sea conservancy could bring more focused management to one of California's most ecologically important and environmentally troubled landscapes, where major bird habitat restoration projects are underway.
| The Nature Conservancy | The Nature Conservancy | 2026 TNC's California policy priorities include wildlife corridors, marine fisheries, wildfire resilience, water security and implementation of Proposition 4, connecting biodiversity conservation with climate adaptation.
| NOAA | California Current Integrated Ecosystem Assessment | 2026 NOAA's California Current ecosystem reports track marine conditions, productivity, species and environmental trends. The reports provide an important basis for understanding changes affecting California's offshore biodiversity.
| Alex Wigglesworth | Los Angeles Times | August 16, 2025 California approved a major conservation plan for western Joshua trees that identifies potential climate refugia while addressing habitat loss, wildfire and development across the species' range.
| Alex Wigglesworth | Los Angeles Times | November 28, 2024 A new coalition is developing long-term monitoring, habitat protection and climate-refugia strategies for western Joshua trees with participation from scientists, agencies, conservation organizations and Indigenous representatives.
| Sammy Roth | Los Angeles Times | October 29, 2024 California's biodiversity policies are examined in the context of the global effort to halt nature loss. The discussion emphasizes the close relationship between biodiversity protection, ecosystem restoration and climate mitigation.
| Lila Seidman | Los Angeles Times | September 9, 2024 California reported substantial progress toward conserving 30 percent of its lands and coastal waters by 2030. The initiative combines land protection with biodiversity restoration, climate resilience and access to nature.
| Hayley Smith | Los Angeles Times | April 22, 2024 California's natural and working lands strategy proposes managing millions of acres for biodiversity, carbon storage, water protection, habitat connectivity and wildfire resilience.
| Hayley Smith | Los Angeles Times | November 1, 2022 California's warming and increasingly variable climate is changing vegetation, wildfire regimes, rivers and wildlife populations. The article describes climate change as a growing threat to the state's already stressed biodiversity.
| A.J. Atkinson et al. | U.S. Geological Survey | 2004 This report examines monitoring and adaptive management for California's regional multi-species conservation plans. It remains useful background on evaluating ecosystem integrity and biodiversity over large landscapes.
| The Nature Conservancy | The Nature Conservancy | n.d. The Nature Conservancy's California program works across forests, rivers, agricultural landscapes, deserts and marine ecosystems. Its conservation portfolio includes approximately 1.5 million acres of land and thousands of square miles of ocean.
| Audubon California | Audubon | n.d. Audubon's statewide biodiversity StoryMap examines California's coasts, deserts, rivers, forests and working lands through the distribution of birds, highlighting ecological connections among regions.
| The Nature Conservancy | The Nature Conservancy | n.d. TNC proposes connecting major California wildlands into larger ecological networks. Connectivity can allow species to move, maintain genetic exchange and respond to changing climate conditions.
| NOAA | Integrated Ecosystem Assessment | n.d. NOAA describes the interconnections among freshwater, estuary, pelagic and seafloor habitats in the California Current. Habitat condition is central to ecosystem-based management of marine resources.
Central Valley Wetlands and Migratory Birds
| Audubon California | Audubon | August 17, 2026 Audubon examines community-based conservation across California's Central Valley, highlighting riparian habitat, birds, reptiles and local organizations that connect people with regional biodiversity.
| Douglas Fox | UC Davis | July 21, 2026 Research on mountain jewelflower suggests some California plants may not evolve rapidly enough to keep pace with climatic change, demonstrating why migration, refugia and genetic diversity matter to future conservation.
| Kathryn A. Thomas | U.S. Geological Survey / bioRxiv | January 2026 Surveys of Joshua tree stands in the eastern Mojave provide detailed information on population structure and regeneration. Long-term monitoring is important because climate change and wildfire could alter future persistence.
| Audubon California | Audubon | May 30, 2025 The BirdReturns partnership has created more than 180,000 acres of temporary wetland habitat by working with farmers and wetland managers to provide water exactly when migrating birds need it.
| Audubon California | Audubon | November 27, 2024 Strategic flooding converted tens of thousands of acres of Central Valley farmland and managed wetlands into seasonal habitat supporting large concentrations and diverse communities of migratory birds.
| Samantha Arthur | Audubon California | February 5, 2021 Central Valley wetlands are essential components of the Pacific Flyway but more than 90 percent of their historical extent has disappeared. Remaining managed wetlands require dependable water supplies to continue supporting migratory birds.
| Audubon California | Audubon | May 12, 2016 The article describes the transformation of the historic Central Valley's vast wetlands, riparian forests and rivers into a highly managed agricultural landscape and the continuing struggle to secure enough water for wildlife refuges.
| California Native Plant Society | CNPS | n.d. California's ecosystems have evolved under very different fire regimes. CNPS explains why restoring fire can benefit many northern forests while excessive fire frequency can degrade Southern California chaparral biodiversity.
| Audubon California | Audubon | n.d. BirdReturns demonstrates how working agricultural landscapes can contribute to biodiversity conservation. Farmers receive incentives to flood fields at key times, creating temporary habitat for shorebirds and waterfowl.
| Audubon California | Audubon | n.d. Audubon works with farmers, landowners and wetland managers throughout the Central Valley to maintain agricultural landscapes that also provide habitat for millions of birds along the Pacific Flyway.
Native Plants, Deserts and Fire
| U.S. Geological Survey | USGS | May 9, 2025 High-resolution models estimate future suitable habitat and climate refugia for western and eastern Joshua trees. The data can help managers prioritize landscapes most likely to remain viable under climate change.
| Kat Kerlin | UC Davis | July 29, 2024 Researchers identified roughly 15 major native-plant biodiversity hotspots across California. Climate models suggest those hotspots could lose significant portions of their present plant diversity by late century.
| Alastair Bland | Audubon Magazine | Spring 2024 Temporary wetlands on California agricultural lands can provide strategically located habitat for declining shorebirds while compensating farmers for conservation-compatible management.
| California Native Plant Society | CNPS | 2022 Post-fire field surveys reveal the remarkable regeneration of California native vegetation, including species whose seeds may remain dormant for years until fire creates appropriate conditions for germination.
| Meghan Hertel | Audubon California | February 5, 2021 Restoring Central Valley wetlands can provide habitat while also filtering pollutants, storing carbon, recharging groundwater and reducing flood risks, demonstrating the broader benefits of biodiversity restoration.
| California Native Plant Society | CNPS | n.d. CNPS conservation programs address rare plants, deserts, forest management, wildfire, regional planning, climate change and habitat loss. Native plants form the foundation of California's terrestrial biodiversity.
| U.S. Geological Survey | USGS | n.d. Joshua Tree National Park supports hundreds of plant and animal species where the Mojave and Colorado deserts meet. Its biodiversity reflects substantial variation in elevation, climate and habitat.
| California Native Plant Society | CNPS | n.d. CNPS provides research and guidance on wildfire ecology, ecological recovery, native plants and fire-resilient landscapes while emphasizing that appropriate management varies greatly among California ecosystems.
| Audubon California | Audubon | n.d. The Migratory Bird Conservation Partnership combines science, landowner cooperation, habitat enhancement and water management to improve wetland and agricultural habitat throughout the Central Valley.
Botanical Gardens, Research and Climate Refugia
| Brittany Hook | Scripps Institution of Oceanography | June 25, 2026 Scientists launched California's first large-scale genetic barcode library for intertidal invertebrates and algae, creating a reference system for monitoring biologically diverse and climate-sensitive coastal ecosystems.
| UC Davis Center for Watershed Sciences | UC Davis | June 19, 2026 Point Blue Conservation Science studies birds, wildlife and ecosystems across California. Current projects include working-land conservation, mountain meadows, climate adaptation and restoration of biodiversity-rich habitats.
| Mike Peña | UC Santa Cruz | April 24, 2026 A climate-informed assessment suggests iconic California native trees such as blue oak may be substantially more vulnerable to future habitat loss than conventional conservation rankings indicate.
| Alison Hewitt | UCLA | April 15, 2026 Researchers are sequencing oak genomes to identify populations naturally adapted to heat and drought. California oaks support exceptionally rich biological communities and are major targets for climate-adaptive restoration.
| Robert Monroe | Scripps Institution of Oceanography | March 5, 2026 Long-term genetic and ecological research shows San Diego's giant kelp forests declining as coastal waters remain unusually warm. Kelp loss can cascade through entire nearshore food webs.
| UC Botanical Garden at Berkeley | UC Berkeley | May 17, 2024 California has greater plant diversity than any other U.S. state and a high level of endemism. Berkeley's collection includes many rare and endangered native species used in conservation and research.
| Cameron Barrows | UC Riverside Palm Desert Center | February 12, 2024 Desert biodiversity extends far below ground. Research in the Coachella Valley has found remarkable fungal and bacterial diversity associated with desert vegetation, illustrating the importance of soil communities.
| Cameron Barrows | UC Riverside Palm Desert Center | July 14, 2021 California deserts occupy about one-third of the state and contain extraordinary plant and reptile diversity. Their varied soils, elevations, rainfall and landforms produce far more ecological complexity than barren-desert stereotypes suggest.
| Kat Kerlin | UC Davis | June 8, 2020 Researchers mapped California vegetation likely to persist under future climatic conditions. Climate refugia may provide important conservation anchors where species have greater chances of surviving warming and drought.
| UC Davis Arboretum and Public Garden | UC Davis | January 18, 2019 Scientists helped shape California's Biodiversity Initiative, which established statewide efforts to understand, protect and restore native biodiversity threatened by development, habitat fragmentation and climate change.
| UC Botanical Garden at Berkeley | UC Berkeley | n.d. The UC Botanical Garden preserves rare and endangered plants through living collections, seed banking, tissue preservation and restoration. Much of its conservation work focuses on California's exceptionally diverse native flora.
| Scripps Institution of Oceanography | UC San Diego | n.d. Marine heat waves, ocean warming, acidification and oxygen loss are transforming California coastal ecosystems. Kelp forests and other biologically rich habitats are particularly vulnerable.
State Parks, Freshwater Ecosystems and Restoration
| California Trout | CalTrout | June 8, 2026 A $4 million grant will advance restoration of 950 acres in the lower Eel River estuary, reconnecting tidal habitat important to salmon, steelhead and numerous other North Coast species.
| California State Parks | California State Parks | April 22, 2026 California announced plans for three additional state parks and roughly 30,000 acres of expansion to existing parks, substantially increasing protected habitat while improving public access to nature.
| California State Parks | California State Parks | April 15, 2026 Large-scale restoration in California's North Coast state parks is improving ecosystems while generating regional jobs and economic activity, demonstrating potential socioeconomic benefits of biodiversity restoration.
| California Trout | CalTrout | January 28, 2026 Conservation organizations and regulators are pursuing exceptionally strong water-quality protections for tributaries of the South Fork Eel River whose cold, clean waters support salmon and other aquatic biodiversity.
| California Trout | CalTrout | January 27, 2026 State of the Salmonids III will reassess all 32 native California salmon, steelhead and trout species, providing a major statewide indicator of freshwater ecosystem health.
| California State Parks | California State Parks | 2026 California State Parks protects examples of many of the state's ecosystems and organizes Biodiversity Day activities encouraging visitors to document plants, animals and fungi through iNaturalist.
| Point Blue Conservation Science | Point Blue | 2026 Point Blue's research portfolio includes pollinator monitoring, bird responses to vegetation management, wildlife on California rice farms, climate-resilient working lands and biodiversity-friendly conservation practices.
| Leah Gardner, Dena Spatz and Erika Delemarre | California State Parks | October 17, 2025 State Parks documented hundreds of species during California Biodiversity Day events. Bioblitzes in dozens of parks demonstrate how community science can produce useful statewide biodiversity observations.
| California State Parks | California State Parks | September 3, 2025 More than 200 events across California celebrated Biodiversity Day, combining education, nature observation and community science to document the state's plants, animals and ecosystems.
| California State Parks | California State Parks | March 18, 2024 California awarded $6.7 million to 19 habitat-conservation projects. State Parks emphasized that protecting biodiversity is particularly important because a large proportion of California's native plants occur nowhere else.
| Jeffrey Mount, Caitlin Peterson and Gokce Sencan | Public Policy Institute of California | April 2023 California's rivers, wetlands, lakes and estuaries support exceptional biodiversity, but altered flows, habitat loss and pollution have placed many freshwater species at risk.
| Public Policy Institute of California | PPIC | 2022 The report explores ways California can reserve and store water for ecological purposes, helping rivers, floodplains, wetlands and estuaries survive increasingly severe droughts and climatic variability.
| Ted Grantham, Jeffrey Mount, Sarah Yarnell and Eric Stein | Public Policy Institute of California | August 2020 A functional-flows approach seeks to restore key ecological characteristics of California rivers rather than simply prescribing fixed water volumes, potentially improving native fish and freshwater biodiversity.
| Ellen Hanak et al. | Public Policy Institute of California | November 2018 California's river and wetland ecosystems have experienced widespread biological decline. The report examines environmental water management and strategies for recovering native fish, birds and aquatic ecosystems.
| Public Policy Institute of California | PPIC | n.d. California's rivers, lakes, wetlands, vernal pools and estuaries face combined pressures from water diversion, land-use change, pollution, invasive species and climate change. The report examines climate-smart management approaches.
Birds, Working Lands and Coastal Habitat
| Michael Chen | Audubon California | June 16, 2026 The article examines how staffing and budget reductions can slow habitat restoration, environmental enforcement, wildlife management and progress toward California's 30x30 conservation goals.
| Ian Souza-Cole | Audubon California | May 30, 2026 Tiny tracking tags have generated more than a million detections of California's threatened Tricolored Blackbirds, revealing movements outside the nesting season that can improve habitat protection.
| Audubon California | Audubon | May 26, 2026 California launched its first statewide Breeding Bird Atlas, mobilizing thousands of community scientists to document breeding species across deserts, forests, cities, wetlands, valleys and coastal landscapes.
| Mike Lynes | Audubon California | April 2, 2026 Audubon's 2026 legislative agenda emphasizes habitat and water for birds, protected open space, access to nature and continued conservation of California's biologically rich coastline.
| Keilani Bonis-Ericksen | Audubon California | April 2, 2026 California's Marine Important Bird Areas identify highly productive ocean habitats used by seabirds traveling across the Pacific and can help guide marine conservation and offshore development planning.
| Ashley Seufzer | Audubon California | December 10, 2025 BirdReturns created roughly 48,000 acres of managed habitat in 2025 and documented more than 147,000 birds, providing evidence that strategically timed habitat can rapidly attract wildlife.
| Mike Lynes | Audubon California | October 3, 2025 California enacted measures strengthening migratory-bird protections, the state Endangered Species Act and long-term funding for habitat conservation, including wildlife corridors and land acquisition.
| Bridget Mulkerin | Audubon California | August 15, 2025 California's offshore-wind transition creates both climate opportunities and ecological risks. Careful siting and science-based planning can reduce impacts on seabirds and marine ecosystems.
| Audubon California | Audubon | June 6, 2025 Research at the shrinking Salton Sea found expanding shallow wetland habitat benefiting some shorebirds even as deep-water habitat and fish-eating bird populations continued to decline.
| Grace Ferguson | Audubon California | June 3, 2025 Bird monitoring on California ranches helps researchers understand whether grazing and habitat-management practices can sustain native wildlife while maintaining economically productive working landscapes.
| Audubon California | Audubon | May 20, 2025 Water entered the Salton Sea Species Conservation Habitat Project, creating thousands of acres of aquatic habitat designed to support birds while reducing dust from exposed lakebed.
| Audubon California | Audubon | March 20, 2025 Restoration efforts at Mission Bay and Buena Vista Lagoon seek to recover biologically rich Southern California estuaries that provide habitat for migratory birds and many other coastal species.
| Michael Chen | Audubon California | March 4, 2025 Audubon's California policy agenda focused on wetland protection, stronger wildlife law and climate-bond investments intended to protect habitat and strengthen ecosystem resilience.
| Audubon California | Audubon | n.d. More than 600 bird species have been recorded in California, reflecting the diversity of its wetlands, forests, deserts, grasslands and coastal habitats. The state contains more Important Bird Areas than any other lower-48 state.
Community Science and California Biodiversity Discovery
| California Academy of Sciences | California Academy of Sciences | August 27, 2026 The Academy's 2026 Biodiversity Month combines bioblitzes, the 30x30 Partnership Summit, community science and public education while transferring millions of biodiversity observations to state conservation databases.
| California Academy of Sciences | California Academy of Sciences | 2026 California Biodiversity Day encourages residents to document native plants, animals and fungi throughout September. Community observations feed into statewide efforts to understand and protect biodiversity.
| California Academy of Sciences | California Academy of Sciences | 2026 California Academy bioblitzes mobilize residents to document as many species as possible in parks, beaches and neighborhoods. The resulting iNaturalist observations provide useful information for scientists and land managers.
Bay Area Biodiversity Case Studies
| Kate Golden | Bay Nature | January 13, 2026 Volunteer banding programs are beginning to fill major knowledge gaps about northern saw-whet owls in California. The project illustrates how long-term local monitoring can improve understanding of little-studied wildlife.
| Damon Tighe | Bay Nature | January 8, 2026 Ultraviolet light reveals otherwise hidden biological diversity in Bay Area forests, tidepools and urban habitats, including fluorescent fungi, millipedes, spiders, scorpions, sea anemones and other organisms.
Rivers, Wetlands, Floodplains and Freshwater Biodiversity
| California State Water Resources Control Board | State Water Board | July 24, 2026 Funding will help the Quartz Valley Indian Reservation regain nearly 40,000 acres in the Klamath Basin and restore salmon habitat and water quality in the Scott River watershed.
| Sean Murphy | River Partners | July 21, 2026 Wildlife observations from restored California river corridors illustrate how beavers, birds, reptiles and other species use riparian habitat during increasingly hot summers.
| California Department of Water Resources | DWR | July 17, 2026 A Feather River project near Oroville is adding thousands of cubic yards of spawning gravel and improving side channels used by Chinook salmon and other native fish.
| California Department of Water Resources | DWR | July 7, 2026 Scientists are using environmental DNA metabarcoding to identify plants and animals in the Sacramento-San Joaquin Delta from tiny genetic traces left in the water.
| California State Coastal Conservancy | Coastal Conservancy | June 5, 2026 Coastal Conservancy projects include restoration of South San Francisco Bay tidal ponds, endangered bird habitat and major wetland systems.
| Sean Murphy and Steven Mayer | River Partners | June 4, 2026 California restoration scientists are combining environmental DNA and data analysis to evaluate thousands of organisms and improve future habitat-restoration decisions.
| Sean Murphy | River Partners | May 28, 2026 Wildlife observations, including pollinators using native gardens, demonstrate how even relatively small habitat patches can contribute to California biodiversity.
| Sean Murphy | River Partners | May 27, 2026 Expanding supplies of locally appropriate native seed could remove an important bottleneck limiting large-scale ecological restoration in the San Joaquin Valley.
| California Department of Water Resources | DWR | May 20, 2026 Urban Streams Restoration grants support community projects that improve stream ecosystems, habitat connectivity, climate resilience and flood protection.
| Sean Murphy | River Partners | May 12, 2026 Environmental DNA from hundreds of soil samples is revealing fungi, plants, mammals and other organisms living within San Joaquin Valley restoration sites.
| California Department of Water Resources | DWR | April 29, 2026 California vernal pools support highly specialized plants, crustaceans and amphibians adapted to seasonal cycles of winter flooding and summer drought.
| Sean Murphy | River Partners | April 21, 2026 River Partners completed planning for approximately 6,000 acres of San Joaquin Valley and Tulare Basin floodplain restoration intended to increase wildlife habitat, groundwater recharge and flood resilience.
| California Department of Water Resources | DWR | April 2026 California drought planning increasingly recognizes healthy ecosystems and adequate instream flows as essential to biodiversity as well as human water security.
| Sean Murphy | River Partners | March 9, 2026 Camera traps and field observations document wildlife returning to restored river landscapes throughout California.
| California Department of Fish and Wildlife | CDFW | January 20, 2026 Sixteen California projects received more than $10 million to restore salmon and steelhead habitat, remove migration barriers and improve streams and juvenile rearing areas.
| Sean Murphy | River Partners | January 8, 2026 An ambitious project seeks to restore approximately 1,000 acres of riparian and marsh habitat in the Amargosa Basin, one of the Mojave Desert's major biodiversity centers.
| California Department of Fish and Wildlife | CDFW | December 18, 2025 Naturally reproduced juvenile coho salmon were documented in the upper Russian River basin for the first time in more than three decades.
| Sean Murphy | River Partners | November 7, 2025 Restoration of former farmland beside the Stanislaus River will create native riparian habitat for threatened riparian brush rabbits and other Central Valley wildlife.
| California Department of Water Resources | DWR | n.d. California EcoRestore coordinates dozens of projects restoring tidal marsh, floodplain, wetlands, fish passage and other habitats throughout the Delta, Suisun Marsh and Central Valley.
| California State Water Resources Control Board | State Water Board | n.d. California's wetlands permitting programs include streamlined pathways for ecological restoration projects affecting rivers, streams, wetlands and coastal habitats.
Marine Biodiversity, Kelp Forests and Coastal Ecosystems
| National Park Service | Channel Islands National Park | July 13, 2026 Bald eagles continue their remarkable Channel Islands recovery, with successful nesting now occurring across four of the park's five islands.
| Rose Miyatsu | UC Santa Cruz | May 29, 2026 Scientists reconstructed 1,500 years of black abalone genetic history from shells, providing clues about disease resistance and recovery potential for this critically endangered California species.
| California Academy of Sciences | California Academy of Sciences | April 13, 2026 Community-science programs are being combined with endangered-species recovery projects involving San Francisco butterflies, sunflower sea stars and California coastal ecosystems.
| National Centers for Coastal Ocean Science | NOAA | March 4, 2026 NOAA's coastwide California kelp dataset combines multiple years of giant and bull kelp mapping for studying the distribution and long-term variability of kelp habitat.
| California Ocean Protection Council | OPC | March 2026 California's Ocean Protection Council reports on statewide kelp restoration, marine protected areas, ocean acidification, biodiversity and climate-resilience programs.
| California Ocean Protection Council | OPC | March 2026 The 2026 Coast and Ocean Assessment tracks kelp, marine wildlife, coastal habitats, water quality and climate stressors across California's coast.
| NOAA Office of National Marine Sanctuaries | NOAA | 2026 California kelp restoration increasingly focuses on recovering ecological relationships among kelp, sea urchins and predators rather than managing individual species in isolation.
| Monterey Bay National Marine Sanctuary | NOAA | 2026 The sanctuary's research library includes current work on kelp recovery, fish chorusing, deep-sea ecosystems, pollution and other aspects of California marine biodiversity.
| National Park Service | NPS | 2026 Monitoring at Point Reyes documented more than a thousand northern elephant seal pups and provides long-term information about the health of California's recovering marine mammal populations.
| NOAA Fisheries | NOAA | December 18, 2025 Scientists are breeding endangered sunflower sea stars with the long-term goal of restoring a keystone predator whose disappearance helped trigger Northern California's kelp collapse.
| California Ocean Protection Council | OPC | October 2025 More than $25 million in state investments supported sea-level-rise resilience, ocean acidification research and eventual reintroduction of sunflower sea stars to California kelp ecosystems.
| Multi-Agency Rocky Intertidal Network | UC Santa Cruz | July 28, 2025 Long-term surveys at Abalone Cove document algae, sea stars, mollusks and other intertidal organisms to track changes in Southern California coastal biodiversity.
| California Academy of Sciences | City Nature Challenge | May 2025 California participants in the 2025 City Nature Challenge recorded more than 173,000 observations representing over 7,700 species, including hundreds of rare or threatened organisms.
| Greater Farallones National Marine Sanctuary | NOAA | n.d. Bull kelp forests along Sonoma and Mendocino counties declined dramatically following marine heat waves, sea-star wasting disease and a population explosion of purple sea urchins.
| Monterey Bay National Marine Sanctuary | NOAA | n.d. NOAA identifies kelp-canopy monitoring, urchin surveys and underwater ecological research as important needs for understanding the resilience of Central California kelp forests.
California Deserts and Rare Native Plants
| Ellen Dean | California Native Plant Society | February 19, 2026 King's gold is a California endemic known from a small portion of Kings and Kern counties where it grows on moist alkaline soils and faces severe habitat limitations.
| Ellen Dean | California Native Plant Society | January 23, 2026 Palmer's jackass-clover occurs in desert washes and dunes of Riverside and San Diego counties, including Chuckwalla National Monument, and is threatened by development and habitat disturbance.
| Bureau of Land Management | BLM | 2026 Management of off-highway vehicle routes in the western Mojave increasingly accounts for sensitive desert tortoise and Lane Mountain milk-vetch habitat.
| Bureau of Land Management | BLM | 2026 The California Desert District manages nearly 11 million acres containing some of the state's largest intact desert landscapes and critical habitat for numerous sensitive species.
| Ellen Dean | California Native Plant Society | December 19, 2025 Panamint desert-aster is known only from a handful of locations in the Cottonwood Mountains of Death Valley National Park.
| Ellen Dean | California Native Plant Society | November 25, 2025 Bullgrass is known from only two California occurrences in the Santa Rosa and San Jacinto mountains, making its peripheral populations important for regional plant diversity.
| Ellen Dean | California Native Plant Society | October 24, 2025 Desert mountain thistle represents the highly specialized native flora associated with California's desert mountain habitats.
| Ellen Dean | California Native Plant Society | September 19, 2025 Discombobulating bushmallow is a rare Southern California shrub whose restricted distribution illustrates how newly recognized species can immediately raise conservation questions.
| Ellen Dean | California Native Plant Society | August 27, 2025 Shasta maidenhair fern is endemic to the region around Shasta Lake and was unknown to western science until the twenty-first century.
| Ellen Dean | California Native Plant Society | August 8, 2025 Mendocino Coast paintbrush is a rare native plant associated with distinctive habitats along Northern California's coast.
| Ellen Dean | California Native Plant Society | June 20, 2025 California populations of English sundew occupy nutrient-poor wetlands where the plant supplements its nutrients by trapping and digesting insects.
| Ellen Dean | California Native Plant Society | May 23, 2025 Columbia yellow cress occurs in the Sáttítla Highlands region, demonstrating the botanical significance of California's newly protected volcanic landscapes.
| Bureau of Land Management | BLM | April 25, 2025 Land managers in northeastern California are surveying and treating thousands of acres affected by invasive plants, including annual grasses that alter habitat and wildfire conditions.
| Ellen Dean | California Native Plant Society | April 25, 2025 Mt. Diablo fairy-lantern is endemic to Alameda and Contra Costa counties and has disappeared from or not recently been confirmed at many historical locations.
| Ellen Dean | California Native Plant Society | March 18, 2025 California alkali grass depends on increasingly uncommon saline and alkaline wetlands, springs, vernal pools and alkali sinks.
| Ellen Dean | California Native Plant Society | February 20, 2025 Chaparral ragwort historically occurred from the Bay Area through Southern California and the Channel Islands but has become uncommon across much of its former range.
| Bureau of Land Management | BLM | 2025 Chuckwalla National Monument protects a transition between the Mojave and Sonoran deserts containing desert tortoise, desert pupfish, rare plants and important landscape connections.
| Bureau of Land Management | BLM | n.d. The Desert Renewable Energy Conservation Plan covers millions of acres and attempts to balance renewable energy development with protection of California desert ecosystems and wildlife.
| Bureau of Land Management | BLM | n.d. Millions of acres of California desert are managed as National Conservation Lands to protect wildlife habitat, ecological connectivity, cultural resources and intact landscapes.
| Bureau of Land Management | BLM | n.d. Dos Palmas Preserve protects an unusual Colorado Desert oasis supporting desert pupfish, Yuma Ridgway's rail, rare plants and spring-fed wetland habitat.
Forests, Redwoods, Chaparral and Fire Ecology
| Cal Poly Humboldt Biological Sciences | Cal Poly Humboldt | August 20, 2026 Researchers are comparing spider diversity in old-growth, second-growth and restoration-thinned redwood forests to evaluate ecological recovery after forest management.
| Schmidt Center for Data Science and Environment | UC Berkeley | July 29, 2026 Researchers examining recent fires in the Santa Monica Mountains and Channel Islands found rapid native resprouting while also documenting continuing threats from invasive grasses and fennel.
| National Park Service | NPS | April 17, 2026 Pacific West park projects include restoration of Yosemite's Ackerson Meadow, redwood forests, Cascades frogs, monarchs and bumble bees, illustrating the breadth of biodiversity work underway in California parks.
| Justin Housman | Save the Redwoods League | April 8, 2026 Restoration at 'O Rew is transforming a former mill site beside Prairie Creek into salmon habitat, native vegetation and a landscape that will ultimately return to Yurok stewardship.
| Abiodun Collins | UC Berkeley | March 19, 2026 The Good Fire project explores Indigenous burning traditions and their role in maintaining Northern California biodiversity, culturally important plants and resilient landscapes.
| Schmidt Center for Data Science and Environment | UC Berkeley | 2026 Satellite-based tools are helping managers rapidly assess wildfire impacts on Joshua trees, oaks, junipers, yuccas and other California vegetation.
| Save the Redwoods League | Save the Redwoods League | 2026 Redwoods Rising restored thousands of acres of previously logged forest, removed logging roads and improved streams used by salmon, amphibians and other redwood-forest organisms.
| Helen H. Lee | UC Berkeley | December 1, 2025 Fire ecologist Lenya Quinn-Davidson is working to expand prescribed and cultural burning as tools for restoring California forest resilience.
| Kara Manke | UC Berkeley | November 17, 2025 A two-decade Sierra Nevada experiment found that prescribed fire can reduce hazardous fuels while concentrating carbon storage in larger, more fire-resistant trees and maintaining forest ecological functions.
| Amina Sharma | California Native Plant Society | October 16, 2025 Observations following Southern California wildfires demonstrate both the resilience of native vegetation and the need to prevent fire regimes that exceed the ecological tolerance of chaparral.
| Bryce King | California Native Plant Society | October 10, 2025 Burton Mesa supports one of California's most geographically restricted chaparral communities, including several specialized manzanitas associated with unusual coastal soils.
| Carren Jao | California Native Plant Society | Fall 2025 California's growing need for native seed is driving efforts to create a stronger supply chain capable of supporting large-scale habitat restoration and biodiversity recovery.
| Rausser College of Natural Resources | UC Berkeley | July 21, 2025 Researchers and communities are examining how prescribed burning, cultural fire, grazing and other treatments can reduce catastrophic fire while supporting native plants and wildlife.
| Save the Redwoods League | Save the Redwoods League | June 16, 2025 Restoration crews are uncovering streams buried by historic logging, improving water flow and recovering spawning habitat for salmon and steelhead in redwood forests.
| Cal Poly Humboldt | Humboldt NOW | 2024 Scientists are experimenting with transplanting large fern mats into recovering redwood forests to rebuild complex canopy habitat used by salamanders, plants and other organisms.
Wildlife, Pollinators, Connectivity and Biodiversity Science
| Earth Focus | KQED | June 10, 2026 This documentary examines attempts to protect California deserts, rivers and forests from development, invasive species and climate change.
| UC Davis Natural Reserves | UC Davis | June 5, 2026 Jepson Prairie protects one of California's remaining complexes of vernal pools and native grassland, supporting endangered crustaceans, tiger salamanders, beetles and specialized plants.
| California Department of Fish and Wildlife | CDFW | May 7, 2026 Ten years of coordinated restoration returned California red-legged frogs to Yosemite, culminating in the release of the conservation program's 10,000th frog.
| Mark Green | CalWild | January 14, 2026 Conservation planners revisited California's statewide network of wildlife linkages 25 years after the original Missing Linkages initiative and assessed remaining gaps in habitat connectivity.
| Rhett Ayers Butler | Mongabay | January 6, 2026 California's All-Taxa Biodiversity Inventory is attempting to build a verifiable record of the state's plants, animals, fungi and microorganisms using field surveys, DNA and museum collections.
| U.S. Fish and Wildlife Service | USFWS | 2026 The California Forest Conservation Plan seeks to streamline forest restoration while conserving more than 20 sensitive species affected by fuels-reduction activities.
| Julia Lambert and Loulou Ziegler | UC Berkeley | December 15, 2025 Restoration of a campus rain garden is replacing invasive vegetation with native plants to create small but useful urban habitat for wildlife and pollinators.
| National Park Service | NPS | 2024 A multi-park restoration initiative combines endangered-species habitat work with broader efforts to improve wildlife habitat and ecological resilience in protected landscapes.
| Point Blue Conservation Science | California Avian Data Center | n.d. The California Avian Data Center integrates large bird-monitoring datasets to help researchers and land managers evaluate habitat conditions and population trends.
| Point Blue Conservation Science | California Avian Data Center | n.d. California bird conservation plans translate monitoring data into practical guidance for improving oak woodland, riparian, chaparral, coastal scrub and other habitats.
| Point Blue Conservation Science | California Avian Data Center | n.d. Interactive tools model future San Francisco Bay tidal marshes, Pacific Flyway shorebirds and Sierra Nevada bird populations under changing environmental conditions.
| Point Blue Conservation Science | Point Blue | n.d. Wildlife-friendly management of California farms and ranches can preserve habitat for migratory birds while also providing groundwater, soil and climate benefits.
| UC Davis Natural Reserves | UC Davis | n.d. Jepson Prairie's vernal-pool wildflowers depend on specialized native bees whose life cycles are tightly linked to particular groups of California plants.
| UC Davis Natural Reserves | UC Davis | n.d. More than 200 plant species grow in California vernal pools and roughly half are endemic to these seasonally flooded habitats.
| UCLA Institute of the Environment and Sustainability | UCLA | n.d. The La Kretz Center connects conservation genomics, field biology and agency partnerships to protect California biodiversity from urban Los Angeles to wilderness areas.
