Staff Bios

ANDREA GULLO, Executive Director

Andrea Gullo joined the Habitat Authority in 2000, and has worked for other local and state park agencies. She holds a master’s degree in Urban Planning from UCLA and is the author of publications regarding human attitudes toward cougars. She is responsible for managing and supervising all agency activities including projects involving trails management, ranger services, outdoor education, resource management, finances and administration. She has served as President for a local nonprofit organization, and as a Board Member for several other nonprofit organizations in the past.


Michelle Mariscal joined the Habitat Authority in 2019 and has a graduate degree from the University of California Riverside in Evolution, Ecology and Organismal Biology. Her thesis research evaluated highway underpasses as wildlife corridors in the Coachella Valley.  She previously worked at the Santa Ana Watershed Association supervising biologists, surveying and monitoring for endangered, threatened, and rare species for the Western Riverside County Multiple Species Habitat Conservation Plan.  Prior to that, she worked at UC Riverside’s Center for Conservation Biology as an ecologist and has many years of progressive experience in a wide variety of fields.  She has authored several reports and peer-reviewed manuscripts including those on the topic of climate change.  Her responsibilities include coordinating the ecological activities of the Preserve, administrating the agency GIS, and helping to monitor the long-term sustainable health of the natural resources in balance with recreation.

TERRI HERNANDEZ, Interpretive Programs Coordinator

Terri Hernandez joined the Habitat Authority in 2016 with over 15 years’ experience in environmental education. Terri holds a Master of Arts, Science Education, from Western Governor’s University, Utah, and she has received her Certified Interpretive Guide designation from the National Association for Interpretation. As a half-time staff member, her responsibilities include developing, implementing and coordinating all of the outdoor educational programs and providing high-quality youth classes as well as learning activities covering a variety of topics in part including life science and creative arts. She also is responsible for our volunteer programs.

MELISSA MILLER, Administrative Assistant

Melissa Miller joined the Habitat Authority in 2007, having worked administratively at several commercial and governmental locations. She holds a master’s degree in Latin from UCLA. Her efforts include office management, involving the daily upkeep of information management and financial processes, records maintenance and coordination, and other assignments from the Executive Director.

LINA OCHOA, Naturalist

Lina joined the Habitat Authority in 2012 with vast experience in outdoor education. She holds a dual Bachelor of Arts, in both Natural Resource Interpretation and German, from Humboldt State University. Lina has previous extensive experience as an outdoor educator and also currently works as an after-school program leader for elementary-level school children. As a part-time staff member, her responsibilities involve supporting the Interpretive Programs Coordinator, including leading nature hikes, assisting with volunteer coordination, and creating display materials. She is fluent in Spanish, German and English.

Contract Services:

KENN HUGHES, Deputy Chief Ranger

The Mountains Recreation and Conservation Authority (MRCA), which contracts with the Habitat Authority for ranger services in the Puente Hills, has employed Deputy Chief Ranger Kenn Hughes since 1993. He is responsible for keeping the Preserve safe and clean through law enforcement, emergency services, maintenance, and education. He provides daily supervision for three other rangers that patrol the Preserve.

Kenn is a graduate from the Rio Hondo Police Academy certified in Peace Officer Standards and Training (POST), and has served a two-year position as a Parks and Recreation Commissioner for the City of La Habra Heights. He graduated from the City of La Habra Heights Fire Academy certified by the California State Fire Marshall, as a Fire Fighter I. He is certified by the National Wildfire Coordinating Group and the California Incident Command Certification System, and is state and nationally recognized as an Incident Commander Type IV and Engine Captain. He has over ten years of experience with conducting youth outdoor education Jr. Ranger programs, as well as ten years of experience as a carpenter.

Other Rangers that patrol the Puente Hills Preserve are Supervising Ranger Godoy, Ranger Just, and Ranger Cano.

Other services provided for the Habitat Authority including personnel and financial management are by contract with Board Member agencies.