Who We Are

Meet Our Staff

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  • CAM TREDENNICK, Executive Director

    CAM TREDENNICK, Executive Director

    SRT Executive Director Cam Tredennick is an attorney, manager, and professional with 25 years of experience strategizing, negotiating, structuring, and implementing land and water transactions in California and the West. His mission is to help communities, businesses, industry, and NGOs find solutions to their resource challenges. He collaborates with professionals in all sectors of our economy in California and the West, and is familiar with cutting edge legal tools and financing mechanisms, best available science, and traditional ecological knowledge, and effective land management practices. This knowledge has been gained as he has made critical contributions to placing over $100 million in conservation projects on tribal lands, forests, low-income agricultural and desert communities, National Wildlife Refuges, and park-poor urban areas where the need and rewards are greatest. He joined SRT in November, 2019.

  • Aaron Collins joined SRT in 2013, bringing an extensive communications and marketing background, both as award-winning writer, public relations and marketing manager, and graphic designer whose work has been recognized by the American Institute of Graphic Arts. His collaboration with PBS Nature and ValleyPBS produced "Nature's Keepers," a 30-minute documentary about SRT's important mission. His longtime publishers include Gannett Corporation, McClatchy Newspapers, and numerous California-based monthlies. His many cover stories include subjects from arts & culture, urban planning & public policy, to medical & first responder subjects. A longtime resident of Portland, Oregon, Aaron lived in the Pearl District, a New Urbanist smart growth laboratory where he used his communications skills in various fields including Fortune 500 financial services, with clients such as Nike, Boeing, and the U.S. Army, among many others. Additionally, he has served on nonprofit arts and political action boards, and worked in political campaign and contemporary art gallery administration. He is cofounder of First Arts; founder of the Visalia Visual Chronicle, a publicly-owned, privately-funded art collection for the City of Visalia, California; and past president of the Arts Council of Tulare County. His hobbies include painting, music composition, Jack Russell Terriers, and road trips. He is a native of Exeter, California.

  • Adam Livingston joined Sequoia Riverlands Trust in 2011 and now serves as SRT’s Director of Planning and Policy. As coordinator of the Southern Sierra Partnership, Adam is actively involved in land use policy outreach. His policy work is informed by experience in conservation planning, including use of ArcGIS to integrate habitat and agricultural conservation priorities across the Southern San Joaquin Valley. He researches land use and development policy on the Valley floor, and collaborates with fellow land trusts on planning efforts. In addition, Adam successfully coordinated SRT’s application for Land Trust Alliance accreditation, as well as the recent renewal application. He holds an Honors Bachelor of Arts in philosophy and classics from Xavier University, a Juris Doctor from Yale Law School, and a Master of Environmental Science and Management from the Bren School at University of California at Santa Barbara. He is the author of Paths to Prosperity for the Southern Sierra and Southern San Joaquin Valley: Capitalizing on the Economic Benefits of Land Conservation and Compact Growth. Most recently, he authored Sustainable Communities Strategies and Conservation: Results from the First Round and Policy Recommendations for Future Rounds.

  • As Conservation Program Manager, SRT’s Adam Qian organizes the mountain of information, tasks and annual reports related to SRT-managed habitat mitigation sites. His expertise in spatial data management and mapping (e.g., SRT’s land holdings, giant kangaroo rat “precinct” locations, rare plant populations, grazing use patterns, etc.) is essential to our operations. He joined SRT in 2017.

    Adam is a graduate of the Bren School of Environmental Science & Management at UC Santa Barbara. He is originally from Hefei, China. For his undergraduate degree he studied environmental economics and management at Renmin University of China in Beijing. He has researched non-point pollution control and city-wide coal consumption, and worked closely with government environmental protection departments as well as private consulting firms including AECOM Asia. At Bren he specialized in Coastal Marine Resource Management and Conservation Planning.

    Adam brings perspective to SRT on everything from organization of government jurisdictions, to the order of first vs. last names, to where to find the best Dim Sum. And based on the YouTube videos in which you’ll find of him performing in Mandopop singing competitions, it’s clear he has considerable talent. In the U.S., he performs nationally both competitively and professionally.

  • AUSTIN FONTANILLA, Land Stewardship Associate

    AUSTIN FONTANILLA, Land Stewardship Associate

    Austin Fontanilla joined SRT in September, 2020 as Land Stewardship Associate after serving as Consulting Utility Forester for two of California’s energy giants: PG&E and Southern California Edison. Previously he served his country as an AmeriCorps Member in the Salinas, California area. He is a graduate of Cal State Monterey Bay with a B.A. in Environmental Studies. Additionally he studied abroad in South America for a year at the noted Pontificia Universidad Católica de Chile in Santiago.

  • Ben grew up in the Santa Ynez Valley of California at Midland School near the Los Padres National Forest in the inland, hot valleys, and canyons of the San Rafael Range. After college at University of Montana and UC Santa Barbara and an M.A. in Archaeology, Ben returned to Midland as Ranch Manager. Ben managed the farm and ranch for 15 years, then went to Deep Springs College for two years as Farm Manager.
    In May 2017 Ben joined the Sequoia Riverlands Trust team and finally moved to a cabin he and his wife Laurie have been working on for 17 years near Springville. Working with cattle, horses, people, and good dogs to accomplish mutual goals surrounding conservation are the things that Ben values and looks forward to in the years to come in the San Joaquin Valley.

  • Bud Darwin utilizes his 30 years of skills and knowledge of working with youth as SRT Education and Volunteer Director. His extensive experience has established a well-rounded perspective regarding the social, emotional, and physical needs of youth. He has facilitated outdoor adventure activities, having safely organized and led hundreds of backpacking, kayaking, and rock climbing expeditions. He has spent thousands of hours using experiential education to create engaging activities that provide participants with fun opportunities for learning, reflection, and self-discovery. He is committed to using and protecting our natural spaces to teach environmental education, conservation, and Leave No Trace practices since 1975.

  • Camdilla Wirth joined SRT in 2015 as Conservation Biologist to support SRT’s mitigation site management efforts, particularly in the Carrizo Plain area and west side of the San Joaquin Valley. She adds expertise and experience with the relevant geography, wildlife species and survey methods, complementing existing expertise with plants.

  • CAROLINE LILLY, Manager; SRT Dry Creek Nursery

    Caroline grew up in Visalia, where her love for the natural history of the valley and southern Sierra continues to grow, year after year. While a student at UC Santa Cruz, she gained experience caring for plants in a greenhouse and growing plants for habitat restoration. She joined Sequoia Riverlands Trust over the summer of 2017 as an intern through the California Council of Land Trusts. She then continued to work for SRT as a Conservation Technician through the Sierra Nevada AmeriCorps Partnership (SNAP), where she focused on habitat restoration, easement monitoring, as well as collecting local seed and propagating native plants at the Dry Creek Nursery. Following her AmeriCorps term, she was the Seed Propagation Assistant at Annie's Annuals and Perennials. Caroline is grateful to have the opportunity to continue growing native plants for the people and wildlife of her home region.

  • Courtney Barnes, a native of Tulare County, joined the SRT team in 2016. Courtney brings with her over 30 years of experience in the fields of title insurance, escrow and real estate sales. While employed in the title industry in both Tulare and Kings counties, Courtney held several positions and was one of the first employees of Chicago Title to become a “Certified Title Officer.” She later became an Escrow Officer and Area Manager for a title company in Tulare County. Courtney became a Licensed Real Estate Agent in 2007, specializing in residential and commercial real estate.

    Courtney and her husband Lloyd reside in Lemon Cove where they grow citrus and give shelter to many wandering dogs and cats. They have three grown children and three wonderful grandchildren. She and her husband love camping and fishing every chance they get.

  • Ian grew up on the California Central Coast where he spent much of his childhood outdoors hiking with family and playing sports. He received his Bachelor's degree in Wildlife from Humboldt State, graduating summa cum laude in 2016. Since 2015, Ian has worked on a variety of projects where he has, among other things, collared and tracked North American porcupines using VHF and GPS telemetry and performed mark-recapture studies of federally endangered giant kangaroo rats and state threatened San Joaquin antelope squirrels. In addition to his field work, Ian has experience with a variety of GIS tools including ArcGIS, QGIS and R.

    In April, 2017 Ian joined the Sequoia Riverlands Trust team as a wildlife technician. He looks forward to working towards a world where people and nature coexist sustainably. Ian lives in Paso Robles with his wife Brianna who works as the wildlife biologist for the Carrizo Plain National Monument, and together they enjoy traveling, wildlife-ing and spending time in the many beautiful outdoor spaces in California and beyond.

  • Jeff Powers joined Sequoia Riverlands Trust as Stewardship Director in August 2018, bringing with him more than two decades of experience in land conservation. Originally from Ohio, he received a degree in natural resources management from Ohio State University and a master's in wildlife ecology from the University of New Hampshire. He worked for 10 years with the Nature Conservancy in the New Jersey and Illinois field offices, completing dozens of land acquisition projects protecting tens of thousands of acres.

    He served as project manager for the Peninsula Open Space Trust's 7,000-acre Cloverdale Coastal Ranch. During his tenure at POST, he developed a wide variety of natural resource projects, including pond restoration, innovative invasive species and erosion control work, a unique prescribed fire program, and the development of a thriving volunteer land stewardship program. Over the years, Jeff managed more than 20,000 acres of POST properties where he developed conservation grazing projects, managed agricultural and residential leases, administered a water company, and supervised trail construction projects.
    Most recently, Jeff served as Director of Stewardship for the Big Sur Land Trust in Monterey. He oversaw the conservation easement program as well as implemented unique restoration projects at the preserves.

    Jeff wants to use his expertise in land management to provide opportunities for local residents to enjoy and appreciate the incredible SRT preserves and work with other staff to steward the entire suite of SRT protected lands. He resides in Lemon Cove with his wife, Diana; their dog, Murphy; and three spoiled cats. Jeff enjoys hiking through numerous protected open space areas throughout the Sierra foothills.

  • Jonathan Vaughn was born in Kansas and grew up near Kansas City, MO. He attended Baker University in Kansas, where he got a bachelor’s degree in German and biology, later working in Iowa studying grassland ecology for Iowa State University. He studied abroad in Germany and Austria in the process. After college, he joined the Nature Conservancy in Fort Hood, Texas, monitoring the endangered golden-cheeked warbler. He then attended Western Illinois University for his Master's in parasite ecology. Jonathan came to SRT via the Sierra Nevada AmeriCorps Partnership (SNAP) following a seasonal position at Lincoln National Forest in New Mexico, home of Smokey Bear. He is elated to have the opportunity to develop his interests in ecological restoration and horticulture for Sequoia Riverlands Trust.

  • JUDY POHLMAN, Finance Director

    JUDY POHLMAN, Finance Director

    Judy Pohlman serves as SRT Director of Finance. Judy joined the organization in 2019. A native of Missouri, Judy relocated to California in 1990 where she has worked for growers on the Central Coast and Salinas Valley areas, then later for the nonprofit auxiliary at California State University-Monterey Bay where she managed grants and contracts. Judy joined SRT as the Director of Finance in hopes of utilizing her fund accounting background to meet SRT’s financial reporting needs.

  • Katie Panek joined Sequoia Riverlands Trust in July. She coordinates and conducts SRT's conservation easement monitoring program, generates maps, and contributes to conservation planning. She is a Wyss Scholar for the Conservation of the American West and holds a B.A. in Environmental Studies from Dickinson College and a Master of Environmental Management from the Yale School of Forestry and Environmental Studies.

    Prior to joining SRT, she spent five years working on land conservation initiatives in the United States and Chile. While in Chile, she helped to establish the 8,000-acre Valle California Reserve. Katie was also featured at the ESRI User's Conference for her work as a cartographer for the sporting event Patagonian Expedition Race and her creation of the first maps for the Wildlife Conservation Society's Karukinka Natural Park.

    She is a cross-country cyclist and avid hiker who has a passion for all things wild. Her long-term vision is to bring together unique stakeholders with the aim of achieving landscape-scale conservation.

  • Marilyn Martin joined the SRT team in July 2014 and brings many years of experience as an administrative assistant. Marilyn is the “go to” person for day-to-day operations. She, along with her husband Bob, raised their children, often taking them camping on vacations and many three-day holiday weekends. They now share their love of camping with their granddaughter. “We are very fortunate to have the SRT preserves and the beautiful Sierra Nevada so close by to take advantage of what nature has to offer!”

  • Regina Ivie, Accounting Coordinator, joined the SRT Finance Department in 2016. Regina handles a variety of day-to-day financial duties. She brings the wealth of 20 years small business financial administration while simultaneously attending college and working in the insurance industry. After she worked for 15 years in health and auto, she left the insurance industry in 2014 to return to accounting. She has enrolled in college to pursue her degree.

    Regina was born and raised in this area, living here all but eight years of her life here. She has two grown children and a grandchild. After 25 years apart she married her high school sweetheart. She enjoys gardening, long walks and travel, but mostly cherishes making memories with family and friends.

  • Sam Weiser was born and raised in New Haven, Connecticut. He received a BS in Environmental Studies from UC-Santa Barbara, interned for Coal Oil Point Preserve and the Kids In Nature program. After college, Sam returned to New Haven, working for various nonprofit afterschool programs, leading field trips, and hosting summer camps. After three years in the nonprofit sector, Sam taught 5th and 7th grade science in New Orleans, Louisiana at Samuel J. Green Charter School. Despite falling in love with the city of New Orleans and learning an immeasurable amount from his students, Sam discovered his true passion in providing hands-on, experiential, outdoor educational opportunities. Fortunately, through Sierra Nevada AmeriCorps Partnership (SNAP) he found a perfect place to pursue this passion: Sequoia Riverlands Trust. He is currently fulfilling his dream of making the world a happier and smarter place, one child at a time.

  • SNEHA KUMAR, Education Technician

    SNEHA KUMAR, Education Technician

    North Carolina native Sneha Kumar graduated from the University of North Carolina at Chapel Hill with a B.A. in English Language and Literature. However, she knew that she wanted to work with children outdoors, and share her love of nature and science with students of all ages. Luckily, she was able to venture into the environmental education field through the Sierra Nevada AmeriCorps Program (SNAP). After two years of serving her country as SRT's Education Technician AmeriCorps, she realized that she loved sharing her passions and exploring with students on SRT preserves. She sees the potential for students in Tulare County, and the beauty of the local area, and wants to continue making a difference. She joined SRT full-time as the Education Specialist in September 2020. In her free time, Sneha loves to ride horses, play with her cat, and explore the wonders of California’s public lands.


A D D I T I O N A L   S R T   P E R S O N N E L

LONNIE BROWN, Dry Creek Preserve Residential Caretaker

Kaweah Oaks Preserve Residential Caretaker


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