GRASSLANDS IN THE WESTERN PACIFIC NORTHWEST PROVIDE IMPORTANT ECOSYSTEM SERVICES INCLUDING FORAGE PRODUCTION, POLLINATOR HABITAT, CARBON STORAGE, AND BIODIVERSITY. HISTORICALLY, THESE GRASSLANDS HAVE BEEN DOMINATED BY PERENNIAL VEGETATION. AS THE CLIMATE CHANGES, THEY ARE NOW AT RISK OF WIDESPREAD INVASION BY INTRODUCED ANNUAL GRASSES. THIS INVASION MAY THREATEN REGIONAL CROP GROWERS, LIVESTOCK RANCHERS, AND OTHER LANDOWNERS INTERESTED IN MANAGING FOR MULTIPLE ECOSYSTEM SERVICES. THE AIMS OF THIS PROJECT ARE TO UNDERSTAND THE IMPLICATIONS OF THIS ANNUAL GRASS INVASION AND TO WORK WITH FARMERS TO IDENTIFY MANAGEMENT STRATEGIES THAT ARE COMPATIBLE WITH THEIR ECONOMIC NEEDS. THESE AIMS WILL BE ADDRESSED THROUGH TWO PRIMARY METHODS: (1) A STUDY AT NATURAL GRASSLAND SITES TO IDENTIFY HOW ANNUAL GRASSES AFFECT THE PROVISIONING OF ECOSYSTEM SERVICES, AND (2) AN EXPERIMENT DEVELOPED WITH A LOCAL RANCHER, BASED ON HIS INTERESTS AND NEEDS, TO COMPARE THE PROVISIONING OF ECOSYSTEM SERVICES BETWEEN ANNUAL-DOMINATED, GRAZED PASTURES AND PERENNIAL-DOMINATED, GRAZED PASTURES. THE EXPERIMENT WILL EXAMINE WHETHER NATIVE SPECIES CAN BE RESTORED TO THE PASTURES TO IMPROVE THE BALANCE OF ECOSYSTEM SERVICES. THROUGHOUT THIS PROJECT, RELEVANT STAKEHOLDERS WILL BE INFORMED ABOUT THE PROGRESS AND RESULTS THROUGH NETWORKING, COMMUNICATION, AND TARGETED PRESENTATIONS. THIS PROJECT WILL FOSTER A COLLABORATIVE PARTNERSHIP BETWEEN RESEARCHERS AND LAND MANAGERS AND WILL LAY THE GROUNDWORK FOR PRACTICES THAT COULD BE ADOPTED ON A LARGER SCALE IN THE FUTURE. THE SCIENCE GENERATED WILL BE OF BROAD INTEREST ACROSS THE REGION. ULTIMATELY, THIS PROJECT CAN HELP ENSURE THE CONTINUED PROVISIONING OF GRASSLAND ECOSYSTEM SERVICES IN THE WESTERN PACIFIC NORTHWEST.