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Natural Biodiversity Board of Directors

Back row from left: Dave Sewak, Ruth Kucera, Dave Petrosky, Andy Mack, Bill Strosnider
Front row from left: Brad Clemenson, Allison Felix, Tricia Nagel, Daimon Lawrence


Brad Clemenson, MS

Brad is Senior Project Manager for the Pennsylvania Environmental Council, a state-wide non-profit. He works primarily on sustainable community resource-based tourism initiatives, specifically as lead external partner for the Laurel Highlands Conservation Landscape Initiative and as coordinator for Lift Johnstown. Mr. Clemenson previously worked for the Pennsylvania Congressman John Murtha as District Director, and prior to that, as Murtha's Communications Director. In the Congressional office, he worked extensively on watershed, tourism, trail, recreation and environmental projects. He serves on the boards of Allegheny Trail Alliance, the Conemaugh Valley Conservancy, Appalachian Coal Country Watershed Team, Johnstown Heritage Association, the Steeples Project and Natural Biodiversity. He has received awards from the Pennsylvania Association of Conservation Districts, Trout Unlimited, Penn's Corner RC&D, and Southern Alleghenies Conservancy. Mr. Clemenson has a bachelor's degree from Bucknell University and a master's degree in communications and government from American University. He enjoys riding the area's rail-trails, kayaking, hiking, and photography and he has a special interest in the region's history. He is married and has a daughter.

David Sewak
Vice President

David Sewak is the owner of Berglorbeer Farma, a sustainable family farm specializing in gourmet and medicinal mushrooms. He worked for over 15 years in the conservation field in Pennsylvania, most recently starting a statewide Marcellus Shale volunteer monitoring program for Trout Unlimited, for which he was honored with PATU's 2011 Inky Moore Award for outstanding service. In 2000, he also received a Millennium Legacy Award from the White House for his work on the Pittsburgh to Harrisburg Greenway project. David also managed The Fly Fishing Show for four years, a national fly fishing consumer trade show. He speaks and exhibits at national and regional green living events, providing information on how to grow or hunt mushrooms and live more sustainably, as well as products like fresh mushrooms or growing kits. He hosts mushroom cultivation workshops at Berglorbeer Farma. David holds a Bachelor's degree in History and Philosophy from Randolph Macon College in Ashland, Virginia. He serves on the boards of Somerset Conservation District, Stonycreek-Conemaugh River Improvement Project and Natural Biodiversity.

Tricia Nagel

Tricia is a paraplanner at Mint Capital Advisors, LLC. She graduated from Juniata College in 2010 with a degree in Entrepreneurship and a secondary emphasis in Finance. She wrote the business plan for the Juniata College Biodiesel Program. She has been raising monarch butterflies since she was a child. Tricia was also born and raised in Johnstown, PA. 

William H.J. Strosnider, Ph.D

Bill is an Ecological Engineer and professor in the new Environmental Engineering program at Saint Francis University. His research focuses on the application of renewable energy and material resources to better integrate human society with the natural environment upon which it relies. Bill has substantial and formative service, research and engineering experience in the developing nations of Bolivia, Peru, Guatemala, Nicaragua and Haiti. He also is also an author of over three dozen studies published in scientific journals or presented at various conferences. Bill has been either senior personnel or a co-PI on major grants from the National Science Foundation, National Oceanic and Atmospheric Administration, Foundation for PA Watersheds, and others. Bill also serves on the Boards of the international nonprofit Engineers In Action and the local Stonycreek Conemaugh River Improvement Project.


Allison Felix, MS

Allison is the Director of the Saint Francis University Science Outreach Center. She is the Principal Investigator or Project Director on two funded teacher professional development programs and director of multiples student outreach programming opportunities in STEM Education at SFU. She has B.S. and M.S. degrees in Biology and is pursuing an Ed.D in Integrative STEM Education through Virginia Tech. She and her husband have three children, operate a regional small business, and co-direct the Felix Family Adoption Foundation through the Community Foundation for the Alleghenies.

Ruth Kucera, MPM

Ms. Kucera is a native of Johnstown, PA. While her occupation is nursing, she has a life-long interest in the outdoors. She is a graduate of the University of Pittsburgh School of Nursing and holds a Master of Public Management degree from Carnegie Mellon Univrsity. Ruth's work life has allowed her to be a participant in various outdoor activities. She has been a member of the local Sierra Club and has hiked and backpacked most of the trails of Pennsylvania and West Virginia. She has been a cross-country ski instructor for the YMCA. Ms. Kucera has participated in bird counts, native seed collection workshops and various ecological events. Her youth was spent on her grandfather's 150-acre farm surrounding the Quemahoning Dam. Ruth is currently a member of the Greater Johnstown Garden Club and sins on the conservation committee, specifically working on native plant issues, advocacy and rescue. She is also a member of the civic development committee and participates in site plantings and maintenance throughout the city of Johnstown. Recently, Ms. Kucera was active in planning Natural Biodiversity's Allegheny Mountain Green Fest.

Daimon Lawrence MS

Daimon is the Director of Marketing at CJL Engineering. He manages corporate marketing, business development and proposals for CJL. He currently develops "partnering" alliances with architects and design professionals, as well as identifies and implements business development strategies. He has serves a marketing manager for Hayes Large Architecture, and he has provided professional public communications consulting services through DLE for eleven years.

Andrew Mack, Ph.D

Andy is the Executive Director of the Indopacific Conservation Alliance, with conservation projects in Indonesia and Papua New Guinea. He obtained his Ph.D from the University of Miami and Bachelor's from the University of Delaware. He has worked for Pennsylvania's two major museums, the Academy of Natural Sciences and Carnegie Museums of Pittsburgh. He grew up in rural Lancaster County and now lives in a cabin on the western flank of the Laurel Ridge near New Florence. Between these two places he spent twenty years in New Guinea where he started a research station, formed a national research institute, and studied the world's coolest and most dangerous birds: cassowaries. He is still active in conservation in New Guinea when not in Pennsylvania. He is adjunct faculty at Indiana University of Pa and an adjunct researcher at the University of Kansas. He considers himself supremely fortunate to have explored and lived in some amazing wilderness areas of Borneo, New Guinea and South America. But he still considers Pennsylvania's mountains as a favorite, his home, and globally significant for conservation.

Dave Petrosky, RLA, ASLA 1994,

Since August 1989, Mr. Petrosky has served as a landscape designer/architect/illustrator for the Civil and Environmental Division of L. Robert Kimball and Associates, a CDI Company, in Ebensburg, PA. He participates in all aspects of site design and landscape architecture. He has worked on a multitude of projects including commercial office, retail and residential development plans, conceptual and final master plans, all facets of site planning, hiking and biking trails, churches, streetscapes, parks and recreation, ball fields, plazas, schools and many other projects. In 1994, Mr. Petrosky received a copyright for a landscape program, EZ-Plant™ operating as an AutoCAD add-on. He devised this software for the landscape industry. The program consists of databases of plants, symbols and schedules and quickly adds labels and displays plant quantities while creating professional contract drawings. There is descriptive native plant lists included for ease of planting for the Sustainable Sites Initiative. Last spring, Mr. Petrosky was honorably nominated as a Fellow candidate for the American Society of Landscape Architects (ASLA) with hope of becoming a FASLA Award winner. Mr. Petrosky has been a member of ASLA since 1881. He is actively involved as a member of Green Building Alliance (GBA) Laurel Highlands Branch and is working toward LEED certification. Recently, Mr. Petrosky was hired by Penn State University to teach landscape design using AutoCAD with EZ-Plant Software.

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