Don ScolesDon Scoles, Executive Director

Don Scoles serves as the Executive Director for the San Diego Habitat Conservancy. His responsibilities include open space property acquisition; habitat management; and operations including administration, membership, fundraising, grants, outreach, and education. Don came to the conservancy in 2009 with over 20 years of experience in the environmental planning and compliance field where he evaluated projects pursuant to environmental laws and regulations such as the California Environmental Quality Act (CEQA), National Environmental Policy Act (NEPA), and resource agency permits. He is a Certified Professional in Erosion and Sediment Control (CPESC) and has extensive experience in restoration and field implementation of environmental commitments during construction. He received his B.A. in Geography with an Emphasis in Environmental Studies and a Minor in Biology from San Diego State University. Don completed a Professional Certificate in Hazardous Material Management and is in the process of earning a certificate in Project Management from the University of California San Diego.


Jim Rocks, Habitat Manager

Jim Rocks, Owner and Principal Biologist of Rocks Biological Consulting, serves as Habitat Manager for San Diego Habitat Conservancy. His responsibilities include habitat management, biological surveys, and public outreach and education. Jim began working with SDHC in 2007 and has over 14 years of biological experience in California, primarily in San Diego County. Jim has extensive experience conducting endangered species surveys and holds U.S. Fish and Wildlife Service Permits for the California gnatcatcher, Quino Checkerspot butterfly, and all California fairy shrimp. Additionally, Jim has expertise in botanical surveys, wildlife, and general biological surveys; wetland delineation; native plant revegetation/restoration; and construction monitoring. Jim holds a Master of Science degree in Biological Sciences from Southern Illinois University, Edwardsville and has consulted with such clients as the San Diego Natural History Museum, MCAS Miramar, Pacific Gas & Electric, the City of San Diego, FEMA, and the San Bernardino Water Conservation District.


Sarah Krejca, Program Coordinator

Sarah Krejca serves as Program Coordinator for San Diego Habitat Conservancy. Her responsibilities include assisting with open space property acquisition; coordinating and assisting with all habitat management duties, including general biological and sensitive species surveys; and operations including administration and outreach. Sarah holds a U.S. Fish and Wildlife Service Permit for the California gnatcatcher and is qualified to conduct the California Rapid Assessment Method (CRAM) on all types of wetlands (besides vernal pools) within California. After working in the field of environmental law & policy, Sarah came to SDHC as a volunteer in June 2012 and began working with SDHC in November 2012 as Assistant Program Coordinator before being promoted to Program Coordinator in January 2015. She holds a Bachelor of Science in Biology (Ecology, Ethology & Evolution) from the University of Illinois in Urbana-Champaign, and a Juris Doctor from the University of San Diego School of Law.


Kathy Tonsgard, Accountant 

Kathy Tonsgard serves as Accountant for San Diego Habitat Conservancy. Her responsibilities include developing and managing the annual budget, managing the general ledger, tracking endowments, scheduling the release of funds, month-end and annual reporting, and bank reconciliations. Kathy is new to San Diego as of October 2016 and comes to us from beautiful Alaska. Kathy and her family are very involved in horse rescue in San Diego County and she volunteers on a couple of Boards supporting these rescues. Kathy obtained her Bachelor of Business Administration degree majoring in Accounting from the University of Alaska, her MBA from University of Phoenix, and her Juris Doctor from Concord Law School in Los Angeles. Kathy comes to SDHC with over 25 years of experience in the accounting and finance field.


Mary Applon, Bookkeeper

Mary Applon serves as Bookkeeper for San Diego Habitat Conservancy. Her responsibilities include assisting SDHC's Accountant and Executive Director in accounts receivable and accounts payable, managing the annual budget, preparing invoices, tracking endowments, scheduling the release of funds, and preparing thank you letters to our donors. Mary enjoys being active in the community and is involved in various organizations around San Diego County to help end hunger and assist our golden aged generation in maintaining a healthy living environment. Mary obtained her Bachelor of Science degree from California College and the University of Redlands and came to SDHC with over 8 years of experience in the accounting and finance field.