For 24 years in the Natural Heritage Program, Jeff has documented rare plants and animals and the detriment of invasive species in their habitats.

In his role as the Director of the Pennsylvania Natural Heritage Program at the Western Pennsylvania Conservancy, Jeff has been a constant advocate for applied invasive species tracking efforts to target invasive species management in areas that are high priorities for conservation.

Jeff contributes his education in natural resources planning and extenstive experience to help guide the Pennsylvania iMapInvasives program.

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