MIGRATORY SPECIES ARE AN URGENT CONSERVATION PRIORITY IN LOCAL, STATE, AND FEDERAL POLICY, BUT TOOLS FOR IMPLEMENTING CONSERVATION PLANS THAT ALSO SUSTAIN FARMER LIVELIHOODS HAVE YET TO BE DEVELOPED. AGRICULTURAL STAKEHOLDERS ARE ESPECIALLY VULNERABLE TO THE IMPACTS OF POLICY BECAUSE AGRICULTURAL LAND IS ESSENTIAL FOR MANY MIGRATORY SPECIES. THE LARGE SPATIAL EXTENT AND REQUIRED CONNECTIVITY OF MIGRATORY CORRIDORS ALSO PRESENT UNIQUE CHALLENGES FOR CONSERVATION PLANNING. EXISTING MODELING APPROACHES GENERALLY ASSUME PERPETUAL CONSERVATION, IGNORING THE POTENTIAL FOR INNOVATIVE POLICY DESIGNS TO EXPLOIT THE SEASONALITY OF MIGRATION AND COMPENSATE AGRICULTURAL STAKEHOLDERS FOR THE ECOSYSTEM SERVICES THEY PROVIDE THROUGH "POP-UP" CONSERVATION MECHANISMS.WE WILL DEVELOPMODELS THAT INCORPORATE NEW HIGH-RESOLUTION SPATIAL DATA ON AGRICULTURAL LAND USE AND GPS DATA ON SPECIES MOVEMENTS TO INFORM THE DEVELOPMENT OF POP-UP HABITAT CORRIDORS IN WORKING LANDSCAPES. WE WILL EXAMINE DESIGNS OF PAST INCENTIVE PROGRAMS, PROPOSE NEW STRUCTURES, AND EXAMINE CONDITIONS UNDER WHICH THESE "POPUP" PROGRAMS MAY BE OPTIMAL WITH A BIOECONOMIC MODEL. WE WILL THEN USE THE BEST AVAILABLE DATA TO DEVELOP A STUDY-SYSTEM SPECIFIC MODEL OF CORRIDOR PLANNING FOR MIGRATORY ELK IN THE GREATER YELLOWSTONE ECOSYSTEM. THESE STEPS WILL CONTRIBUTE TO USDA'S GOALS OF IDENTIFYING CONSERVATION PROGRAM DESIGN FEATURES THAT INCREASE ENVIRONMENTAL GAIN PER PROGRAM DOLLAR; DESIGNING INCENTIVE MECHANISMS TO PROMOTE RESOURCE CONSERVATION; AND ASSESSMENT OF ECOSYSTEM SERVICES ASSOCIATED WITH CONSERVATION MANAGEMENT PRACTICES AT VARIOUS SCALES. FURTHERMORE, WE WILL ESTIMATE THE VALUE OF INFORMATION FROM USDA DATA (CROPSCAPE, VEGSCAPE) FOR CONSERVATION PLANNING CONTRIBUTING TO THE PROGRAM'S PRIORITY OF DEVELOPING NOVEL APPROACHES TO DATA DEVELOPMENT TO AID ECOSYSTEM SERVICE VALUATION.