Almost half of the world’s human population lives in coastal areas, and associated coastal development has significantly degraded or destroyed many coastal ecosystems. Burgeoning human populations and rising sea levels only further constrain the availability of habitat that coastal species depend on.

California’s 1,100 mile coast has more than 200 threatened, endangered or rare species living in coastal habitats. There are hundreds of coastal estuaries that provide critical rearing habitat for marine species, and are also important for recreation, water filtration, and carbon sequestration.

Only 10 percent of California’s historic coastal wetlands remain. Without intervention, we are at risk of losing 40 percent of our remaining coastal wetlands to sea level rise over the coming decades. Conservancy scientists are working to reverse these trends. 

Freshwater Systems

California is one of the most hydrologically altered landscapes in the world. As water becomes…>>

Groundwater

In a normal year, groundwater accounts for 40 percent of California’s water supply. That…>>

Surface Flows

Californians have fundamentally altered many of the state’s rivers and streams with dams,…>>

Terrestrial Systems

In California, a day’s drive can take a visitor from record-setting desert heat to glaciated…>>

Wildlands

Nearly half of California is protected in some land status that prevents most kinds of intensive…>>

Harvested Landscapes

A third of California is privately-owned forestland, woodland or grassland. From redwood forests on…>>

Cultivated Landscapes

California is the leading agricultural state in the country and it’s agriculture generates…>>

Urban Areas and Infrastructure

With California’s population on track to reach 50 million people, the demand for energy,…>>

Fisheries

Wild capture fisheries supply food and jobs for hundreds of millions of people across the globe. Yet…>>

Coastal Conservation

Almost half of the world’s human population lives in coastal areas, and associated coastal…>>

Science in Action

Terrestrial | Planning | Technology | Economics

Wildfire and Communities

How can land protection and restoration help protect communities from wildfire?

Terrestrial | Marine | Economics | Science

TNC and FEMA

How do we increase climate resilience in ways that work for people and nature?

2000 | Terrestrial | Science | Publications & Reports

Arthropods in urban habitat fragments in southern California: area, age and edge effects

Douglas T. Bolger, Andrew V. Suarez, Kevin R. Crooks, Scott A. Morrison, Ted J. Case

Habitat fragmentation ushers in a wide array of ecological changes, and understanding the drivers and impacts of those changes is critical for conservation management. This study examines an often…