Directors and Staff

Officers | At-large | Student Liaisons | Staff

2021 Board of Directors – Officers

Julia Parish, President

A smiling woman in a blue shirt and sunglasses on her head stands on a beach with blue skies

Julia Parish is an experienced Program Director with expertise in project management and invasion biology. She is currently a candidate for a master’s in Environmental Data Science at the Bren School of Environmental Science & Management at UC Santa Barbara. Since graduating from the University of Hawaii at Manoa with a B.A. in Environmental Studies, she has led field teams to enhance biological diversity, ecosystem health, and cultural and recreational resources on islands in the Pacific region and throughout Southern California. While working at Pohakuloa Training Area on Hawaii Island, she developed and implemented an invasive plant early detection and rapid response program, which involved establishing data collection and mapping standards. This experience solidified her passion for collecting and maintaining tidy data. After obtaining her master’s, she will focus on aiding land managers and conservation organizations with developing management priorities based on data science tools and analysis.

Drew Kerr, Vice President

Board Member Drew Kerr

Drew Kerr is currently the Treatment Program Manager for the California State Coastal Conservancy’s Invasive Spartina Project (ISP). Before joining ISP in 2005, when Estuary-wide Spartina treatment was just beginning, Drew was the Aquatic Noxious Weed Specialist for the King County Department of Natural Resources in Seattle, where he began his career in wetland ecology and invasive species management in 1999. During his years at KCDNR, Drew also worked on land use policy and regulation that established protected wildlife corridors and wetland complexes, and worked extensively with native Pacific Northwest amphibians. He received a BS in Environmental Policy & Behavior and a BA in Economics from the University of Michigan and holds a professional certificate in Wetlands Science and Management from the University of Washington. Drew’s first involvement with Cal-IPC was attending the annual symposium in 2005 and he has only missed one annual symposium since then. Drew has a passion for ecology, particularly wetlands and aquatic systems, as well as protecting these ecosystems from the impact of noxious weed invasions.

Sarah Godfrey, Treasurer

Board Member Sarah Godfrey

Sarah Godfrey has worked in wildland habitats and across highly urbanized landscapes throughout California, treating invasive species and developing partnerships to implement integrated plant control strategies.  After working for non-profit Land Trusts for more than fifteen years, Sarah has expanded her scope of work to provide mapping and data management services to the greater global community. She combines significant field knowledge of flora and fauna monitoring methodologies with Remote Sensing and GIS capacity to understand change across multiple scales in ecological communities. Sarah has been restoring native plant communities and controlling invasive weeds since 2003, and maintained a Qualified Applicator Certificate with the Department of Pesticide Regulation throughout that time. Sarah has a B.A. in Environmental Studies (Conservation Biology) from University of California at Santa Cruz, and a M.S. in Geographic Information Science and Technology from the University of Southern California.

Laura Pavliscak, Secretary

Board Member Laura Pavliscak

From her adolescent years onward, Laura has been passionate about understanding the interactions between dynamic ecological systems and related human influences. She went to UC Santa Cruz and studied Agricultural Ecology, working on a dozen farms and ranches both domestically and internationally. Between bike touring and working for a restoration consulting company, she found a unique professional niche working as a field biologist supporting special status species research and biological mitigation in remote locations of the arid southwest, which kept her busy and inspired for 13 years. She attended graduate school at the University of Arizona, obtaining an M.S. in Natural Resources with a focus on Rangeland Ecology and Management, investigating the restoration and enhancement of habitat for imperiled species in areas of disturbance. From 2014 to 2018, she served as the Stewardship Manager of the Tejon Ranch Conservancy, a non-profit land trust, helping to oversee the conservation management of 240,000 contiguous acres in Southern California. The effects of invasive species on biodiversity, ecological processes, and conservation values have been a continual focus and priority for her as she’s progressed through her career from farm to wilderness to large-scale working landscape, and she is overjoyed to help support the excellent research, education, and public advocacy work of Cal-IPC to help further this critical cause.


Gina Darin, Past President

Board Member Gina Darin

Gina is a Senior Environmental Scientist Supervisor in the Division of Environmental Services at the California Department of Water Resources (DWR) in Sacramento with over 10 years of experience working on invasive plant management in California, all the while volunteering for Cal-IPC. As part of her duties at DWR she oversees technical staff dedicated to the Fish Restoration Program and California WaterFix. Gina serves as co-chair to the DWR internal Invasive Plant Working Group and represents DWR on the Delta Interagency Invasive Species Coordination Team, the Interagency Ecological Program’s Aquatic Vegetation Project Work Team, and the California Interagency Noxious and Invasive Plant Committee. Prior to working for DWR, Gina worked at the CA Department of Food and Agriculture in the Weed Management Area (WMA) Program. She has a B.S. in Marine Science from Eckerd College, St. Petersburg, FL and an M.S. specializing in Weed Science with Dr. Joe DiTomaso from UC Davis (2008).


At-large Directors

Steven Addison

Head and shoulders portrait of a bearded black man in a black coat and black hatSteven is currently a Job Training Coordinator with Civicorps, a certified local Corps located in Oakland, CA.  Steven grew up in the Bay Area spending many hours outside playing in local parks and exploring creeks.  His love for the natural world blossomed during a multi-week high school experience in the Six Rivers National Forest and this sent him on a path of working closely with the land. From there Steven worked with the California Conservation Corps doing Salmon Restoration Projects, miles of trails work and invasive species removal.    Working for the different federal agencies he has had the opportunity to be involved in alpine meadow restoration in Yosemite National Park and the Klamath National Forest and the removal of tamarisk, an invasive species in Big Bend National Park.  He has also worked for Natural Resource Conservation Service as an engineering tech surveying acres of invasive grasses.  Steven has returned to the Bay Area to bring his passion, knowledge and love of the natural world to the young adults he serves every day at Civicorps.

Doug Gibson

Board Member Doug Gibson

Doug is the Executive Director and Principal Scientist of the Nature Collective, managing one of the west coast’s premier wetlands, located in San Elijo. During his nearly 20 years in the position, he has raised millions of dollars for restoration and stewardship. He has also worked as a private consultant to several resource agencies and NGOs. He holds a B.S. in Ecology from San Diego State University with a specialty in wetland ecology. He worked for Dr. Joy Zedler at the Pacific Estuarine Research Lab for six years, researching rare plants and monitoring estuaries for fish, invertebrates, water quality, and vegetation. He lives with his family in Encinitas.

Jason Giessow

Board Member Jason GiessowJason earned an M.S. in Restoration Ecology from San Diego State University in 1996. He has worked on large-scale Arundo eradication and habitat restoration programs in California since the mid 1990s. His main priorities are: implementing accurate and inexpensive mapping programs, aiding regional groups in the development of top-down watershed-based eradication programs, and facilitating the development of streamlined permitting. While his work has focused on southern California, he has worked with the Monterey Resource Conservation District on a multi-phase Arundo removal project on the Salinas River, and is engaged in Cal-IPC’s efforts to map Arundo across the entire Central Valley.

Metha Klock

White woman with brown hair smiling in front of a river and green grassDr. Metha Klock is an Assistant Professor at San José State University in the Department of Environmental Studies. She specializes in invasive species biology and restoration ecology. Her research focuses on better understanding the mechanisms that drive invasive plant establishment to inform and improve environmental restoration. She is particularly interested in the role that interspecific interactions play in species invasions and has targeted plants in the legume family that are native to Australia and have been introduced to, colonized, and invaded natural areas in California. Dr. Klock has also examined the expansion of native species due to climate change in the northernmost city in the world, Tromsø, Norway, studied the life history of the highly invasive shrub, Chinese privet (Ligustrum sinense) in Louisiana, and evaluated the nitrogen-fixing potential of legume cover crops for organic farming. Dr. Klock received her Ph.D. in Biological Sciences from Louisiana State University (LSU), her M.A. in Forestry from LSU, and her B.A. in Liberal Arts from Sarah Lawrence College. She served as a Post-Doctoral Associate at Cornell University studying cover crops and sustainable agriculture.

Juli Matos

Juli Matos is the Biosecurity Manager for the Channel Islands. Though she is officially employed by the National Park Service, her position is jointly funded by The Nature Conservancy and the U.S. Navy, with her efforts contributing to the missions of all three entities.  As the Biosecurity Manager, she promotes the importance of biosecurity through education and outreach, and implements strategies to help prevent, detect, and respond to new invasive species introductions to the Channel Islands. She possesses a B.S. from San Diego State University in Environmental Science and an M.S. from UC Santa Barbara’s Bren School of Environmental Science & Management. She has developed and maintains partnerships with international biosecurity partners in Mexico, New Zealand, and Canada, and continues to foster new connections. In her spare time, Juli enjoys all things music and is a member of the Ventura County Concert Band as a flute player.

Tanya Meyer

Tanya Meyer is a Program Manager at the Yolo County Resource Conservation District in Woodland, CA.  She grew up in the foothills of the Sierra Nevadas and went off to UC Davis to earn a B.S. and an M.S. in Community and Regional Development. She has been restoring native plant communities and controlling invasive weeds since 2000. Tanya has worked at Hedgerow Farms (California native plant seed producers), and the Center for Land-Based Learning’s Student and Landowner Education and Watershed Stewardship Program, doing restoration with high school students along the Sacramento River and tributaries.  She worked at the YCRCD from 2006 – 2010 as a vegetation management specialist controlling invasive and noxious weeds and again since 2016 and is currently managing restoration projects and the newly resurrected Yolo County Weed Management Area. She also spent six years in Northern Central Pennsylvania controlling invasive plants along 45 miles of stream bank. Tanya holds a Qualified Applicator License and certifiably dislikes invasive plants.

LeeAnne Mila

Deputy Agricultural Commissioner, Sealer of Weights & Measures, El Dorado County Agriculture Department

Scott Oneto

A smiling man in a baseball cap with a vivid blue lagoon and green plants in the backgroundScott Oneto is a farm advisor with the University of California Cooperative Extension serving El Dorado, Amador, Calaveras and Tuolumne counties. Scott has been with UCCE since 1999 serving in various capacities as a researcher, educator, and administrator. He possesses a B.S. in Plant Sciences and a M.S. in Weed Science both from UC Davis. As a weed scientist much of his research focuses on developing weed control strategies and preventing the spread of non-desirable plants.  Over the past twenty years, he has developed control strategies for several invasive weeds including Scotch broom, tree tobacco, hedge parsley, periwinkle, houndstongue, oblong spurge, skeletonweed, and several others. Scott lives in the gold rush town of Jackson with his wife Cheryl and their four-legged companions. During their free time they enjoy gardening, camping, hiking, biking, wine/beer tasting, and travelling the globe.

Steve Schoenig

Board Member Steve Schoenig

Steve Schoenig returned to the Cal-IPC board in 2015. He previously served on the board from 1999-2007, including acting as President in 2004-05. Steve spent seven years overseeing the California Department of Fish and Wildlife’s Natural Heritage Program (CA Natural Diversity Database (CNDDB), Vegetation Mapping Program, Conservation Analysis Unit). Prior to that, he worked for 18 years at the California Department of Food and Agriculture, first in the Biocontrol Program and then leading CDFA’s Noxious Weed Eradication Program and creating the Weed Management Area Support Program. He holds degrees in Entomology, Ecology and Biostatistics from UC Berkeley and UC Davis. Steve has had a serious interest in California botany for 30 years involving systematics of the genus Mimulus (monkeyflowers) and floristics of desert plants.

Amanda Cantu Swanson

Board Member Amanda SwansonAmanda is currently the Orange County Reserve Manager  for the California Department of Fish and Wildlife. Previously employed as the Restoration Coordinator for the Newport Bay Conservancy (NBC), she has five+ years of experience in vegetation monitoring, plant community assessments, soil sampling and analyses, quantifying soil carbon and nutrient pools, invasive plant management, data management and data analysis. In September 2017, she received her PhD in Plant Biology with emphases in plant, soil, and landscape ecology. Her dissertation used biogeochemical approaches to assess the impacts of human disturbances on plants and soils and how restoration facilitates recovery of ecosystems. After graduating, she became a postdoctoral research associate with the University of Wyoming. While a postdoc, she also taught Biology at Saddleback Community College and performed vegetation monitoring for the Irvine Ranch Conservancy. At NBC, she has focused on surveying and managing invasive Limonium species, Volutaria tubuliflora, and EDRR in and upstream of Upper Newport Bay. Amanda led the Big Canyon Habitat Restoration and Adaptation Project which involves the removal of several acres of Brazilian peppertrees and other invasive plants, restoration of the canyon’s hydrology, and reestablishment of native plant communities. As Upper Newport Bay is home to sensitive saltmarsh habitat and is complex in its land ownership, she is working to strengthen partnerships between reserves in the area and community stakeholders to improve conservation of the Bay’s ecosystems.

Marcos Trinidad

Marcos has served as Director at Audubon Center at Debs Park for nearly two years, and during that time has nurtured a growing community of volunteers, youth, and community organizations; implemented a facility and grounds improvement plan; and partnered with the National Parks Service to establish the only native plant nursery in northeast Los Angeles. Born and raised in Northeast LA, Marcos has deep roots in the community. Prior to coming to Debs, he served as Director of Audubon Youth Environmental Stewards (a program of the Palos Verdes/South Bay Audubon Society), where he engaged and inspired community members to connect to nature and their community through restoration and volunteer science projects. He has also spent time as a Biology Technician for the U.S. Forest Service and an Urban Forester for organizations such as Northeast Trees and TreePeople. Marcos’ formal education is in geology and anthropology. Marcos is an avid birder, and frequently he leads trips to the LA River, Owens Lake, and the Salton Sea.

Cheryl Wilen

A woman with short gray hair sits atop a kayak with life vest and paddle

Cheryl Wilen spent about 25 years as the Area Integrated Pest Management (IPM) Advisor with UC ANR in Southern California and retired as emeritus in 2020. As a member of the UC Statewide IPM Program, she worked all over the state to increase adoption of lower toxicity pest management programs. She helped people and agencies make informed, research-based decisions about how to best manage pests in their natural lands, farms, municipal sites, and other areas for improved human and animal safety and cleaner air and water. Over the course of her career with UC IPM and UC Cooperative Extension, she has been the acting and interim Director of the Statewide IPM Program, leader for UC Agricultural and Natural Resources endemic and invasive pests and diseases strategic initiative, and UC IPM Program’s natural resources IPM extension coordinator. Dr. Wilen has a Ph.D. in Botany and her M.S. and B.S. degrees are in Horticulture. She currently enjoys working in coastal southern California.

Student Liaisons

Katherine Brafford

Student Liaison Katherine Brafford

Katherine Brafford is a PhD Student at UC Davis in the Ecology Graduate Group (Funk Lab) and a Eugene Cota-Robles Fellow. Her research interests include weed and invasive plant ecology, trait-environment interactions, plant community composition, phenotypic plasticity, and ecophysiology. She is from the mountainous California-Oregon border region and has worked on several ecological restoration projects on family land. Katherine graduated from UC Davis with a BS in Plant Sciences and a minor in Religious Studies. For her senior honors thesis, she investigated the potential adaptive changes in yellow starthistle to serpentine soils in California. During her undergraduate years at Davis, she worked in the UC Davis Arboretum and Public Garden’s Sustainable Horticulture Learning by Leading Program. Katherine is working towards a career that bridges the divide between experts, who do research, and lay people, who work with and manage land.

Rebecca Nelson

A young woman in a hat stands before a field of yellow flowersRebecca Nelson is a PhD Student at UC Davis in the Ecology Graduate Group in the Harrison Lab. Her research interests include invasive plant ecology, community ecology, global change biology and restoration ecology. She graduated from Stanford University with a B.S. in Ecology and Evolution and minors in Creative Writing and Science Communication. Her undergraduate research included examining plant-herbivore interactions in California oaks, comparing the thermal tolerances of invasive ants and native ants, and investigating wood density-allometry relationships in California trees and shrubs. For her dissertation, she is currently researching how the invasion of hairy vetch affects plant-pollinator interactions in California grasslands. Rebecca is working towards an academic career as a professor. She hopes to foster partnerships between the applied and academic sides of plant invasion ecology.

Clarissa Rodriguez

A young woman in a blue shirt poses smiling in front of a eucalyptus treeClarissa Rodriguez is a PhD student at UC Riverside in Dr. Loralee Larios’s lab. Her research focuses on investigating the drivers and impacts of invasive species in dryland systems. Clarissa received her B.S. in Environmental Biology from Cal Poly Pomona in 2017. She has since worked as a Restoration technician for Rancho Santa Ana Botanic Garden in California, as well as a Field Botany technician for the Institute for Applied Ecology in Oregon. Clarissa also actively engages in outreach programs and events directed towards engaging youth and underrepresented minorities in STEM. Her ultimate goal is to become a professor at a university where she can engage in translational invasion ecology to help bridge the gap between scientists and land managers, while pursuing her love for teaching.

Stuart Schwab

A smiling young man in a red jacket pauses while taking notes on a square patch of plantsStuart Schwab is a graduate student at UC Riverside in the Botany and Plant Science department co-advised by Loralee Larios and Darrel Jenerette. He received his B.A. in Biology from Occidental College in 2016. His dissertation research is focused on how invasive plants prevent the establishment of native species even after the invasive have been removed. During his graduate work, he has worked with land managers from state parks, conservation agencies, and agricultural natural reserve systems to merge management concerns with basic science questions in his dissertation chapters. He hopes to continue to integrate and center the invaluable insights and perspectives of land managers with ecological questions to form better research projects to address why native species recovery fails. His ultimate goal is to become a cooperative extension specialist and improve upon the academic scientist manager communication bridge.


Doug Johnson, Executive Director

Executive Director Doug Johnson
Doug became Cal-IPC’s first staff person in 2002. He holds an M.A. in Geography from San Francisco State University with an emphasis on conservation biology, GIS, and perceptions of wilderness. He is a Switzer Environmental Fellow. Doug also holds an M.S. in Mechanical Engineering from Stanford University. He has worked in wildland weed control with California State Parks and The Nature Conservancy, and as a private consultant. Other work experience includes municipal energy conservation, engineering design, environmental and science education. Doug served as the first chair of the California Invasive Species Advisory Committee, and currently serves as treasurer for the National Association of Invasive Plant Councils. He is a founding member of the California Horticultural Invasives Prevention (Cal-HIP) partnership and the PlantRight partnership. In his spare time, Doug plays soccer and has fun with two sons.

Agustín Luna, Director of Finance, Operations and Administration

Director of Finance, Operations and Administration Agustin Luna
Agustin is an administrative senior manager and executive with over 30+ years of experience. He has worked with professional non-profit arts organizations like the Hollywood Bowl, Cal Performances, South Coast Repertory, and is currently the Executive Director of Savage Jazz Dance Company. Agustin was the General Manager of Movement Strategy Center, where he oversaw finance, human resources, IT, operations, facility management, and the fiscal sponsorship program of the organization. Previously, Agustin worked with college students in UC Berkeley’s Student Music Activities Department and high school students in Oakland School for the Arts charter school, teaching the fundamentals of arts administration and management. Agustin is an avid salsa dancer and instructor, and is a presenter of salsa events through his company Agustin Luna Presents. He has danced Bomba y Plena with Bay Area Boricuas, assisted them in their initial organizing as a 501(c)(3) nonprofit corporation, and briefly served as their Managing Director. He was for 5 years the Board Treasurer of the 501(c)(3) non-profit Center for Media Justice, now known as Media Justice. Agustin is one of the last beneficiaries of California’s elementary school music program that ended in the mid-1980s and has played his trumpet continuously since 1982. He hopes that music in the schools does not disappear and supports efforts to keep it alive.

Jutta Burger, Science Program Director

Board Member Jutta Burger
Jutta moved from Southern California to the Bay Area to join Cal-IPC in fall 2018. She has had a life-long fascination with plants and can date the germination of her interest in invasive species and conservation many years ago to a high school field trip to a small prairie preserve in the Palouse in eastern Washington. Formerly, she served as Managing Director of the Science and Stewardship Department at the Irvine Ranch Conservancy, which manages nearly 40,000 acres of open space in Orange County and where she oversaw their natural resource management staff and programs. Prior to joining the Conservancy, she sampled several different environments, completing a bachelor’s at Washington State University, a master’s at the University of Nebraska, a PhD at UC Riverside, and spending a year at the University of Georgia as a post-doctoral researcher. Her interests lie in understanding invasiveness from a biological, ecological, and evolutionary perspective, and in preserving our native ecosystems by properly prioritizing and implementing invasive control, developing native seed resources, and facilitating restoration. She previously served as Cal-IPC President and as Board Secretary.

Bertha McKinley, Program Assistant

Program Assistant Bertha McKinley
Bertha is an avid gardener using mostly natives who came to Cal-IPC in 1992 after recognizing the threat posed by invasive plants to native plant habitats. She started volunteering in our office in 2004 and is now part-time staff. Bertha handles membership communications and data, runs our sales program, and assists on projects. She holds a B.A. in English (with a minor in Biology) and a M.A. in Education from UC Berkeley. She was formerly president of the San Diego Chapter of the California Native Plant Society, served on its state board, and is currently the chair of the CNPS poster program. In her spare time, she and her dog Appletini volunteer in the canine training program at the Berkeley-East Bay Humane Society.

Claire F. Meyler, Communications & Development Manager

A woman in a houndstooth dress and purple hair sits in a black chair
Claire joined Cal-IPC in 2017, bringing 16 years of experience in non-profit administration and communications. She started her career at the Oakland Museum of California, providing marketing and fundraising support, to help exceed their goal of $62.2 million for the museum’s complete transformation. Claire then joined Kulintang Arts, Inc. (Kularts), where she re-designed the organization’s website and digital communications to promote a busy events calendar.  As marketing manager and webmaster at Yosemite Conservancy, she oversaw the creation of the biannual magazine and annual report, as well as regular email communications and website updates. She created several website expansions and refinements, including a new web component directly connected to social media outlets, with a regularly-updated blog. In her free time, Claire enjoys several creative pursuits, including: tending a veggie garden, drawing, sewing or knitting clothes, and exploring nature with her family.

Nikki Valentine, Conservation Specialist

Staff member Nikki Valentine stands in front of green leaves
Nikki is a graduate of Reed college in Portland, Oregon, where she earned a Bachelor’s of Science in Biology. Since graduating she has held several positions collecting ecological data throughout the Great Basin Region. She has partnered with agencies such as the Bureau of Land Management and Nevada Department of Wildlife to collect rangeland health data in support of nationwide monitoring programs. She has also supported the Seeds of Success program in the collection and documentation of plant materials throughout Nevada. The seed she collected is being put to use in restoration and research studies throughout the Great Basin region. Outside of work, Nikki enjoys spending time in the Sierra Nevada mountains, snowboarding, and botanizing.