Hemlock Conservation Areas
This data should serve as a guide for land managers and owners faced with a forest pest that has the ability to cause mortality in a very important component species of the forests of northwestern Pennsylvania and western New York, eastern hemlock.  These areas have been designated as such by a very diverse group of collaborators, because of the wide variety of values they provide.  Therefore they represent significant landscapes and ecosystems, and some areas are rather large (1000s of acres).  As we don’t have the ability (or prerogative) to impose the designation of more “focal areas” onto the range of forest landowners and managers that are represented in this collaboration, it is important to understand that these areas by no means represent the total area where operations to protect hemlock or mitigate the effects of the adelgid should take place.  These areas simply provide information about significant sections of the landscape where landowners and managers can choose to focus limited resources, knowing that they are operating in an area designated through analysis and review as a hemlock priority.Source:The initial priority areas were delineated on paper maps at a workshop held at the University of Pitt-Bradford campus in Bradford, PA on August 8, 2013.  Participants were those with field knowledge of the study area, to provide the most significant source of knowledge about which areas should be designated priorities.Participating groups, agencies, and companies represented at the workshop:  The Nature Conservancy – New York & Pennsylvania, US Forest Service – Northern Research Station & Allegheny National Forest, PA DCNR – State Parks & Bureau of Forestry, NY DEC (State Forests), NY State Office of Parks, Recreation, and Historic Preservation, NY Natural Heritage Program of SUNY ESF, Pennsylvania Game Commission, Western PA Conservancy, Kane Hardwoods, Collins Pine Company, Forest Investment Associates, Hancock Forest Management, LandVest, McKean County Conservation District, National Wild Turkey Federation, Friends of Allegheny Wilderness, Trout Unlimited, Kinzua Fish & Wildlife Association, McKean County Commissioners, Western NY PRISM (Partnerships for Regional Invasive Species Management, cooperative area).Data presented to workshop participants on the paper maps to aid in priority area designation (provide a source of information secondary to field knowledge): USFS Forest Health Technology Enterprise Team hemlock host basal area data, Public land, PA Forest Game Cooperators (PA PGC), NY DEC Waters Classification dataset, PA DEP Designated Use waters dataset, NY Natural Heritage Program Element Occurrence data, PA Natural Heritage Program Element Occurrence data & Core Biodiversity Areas, Recommended Public Fishing locations (PA PFBC & NY DEC), NY DEC Points of Interest on state forestlands, Trails data (foot, bike, water, and snowmobile, from USFS ANF, PA DCNR, and NY DEC), TNC Priority Forest Habitat Patches (based on several sources of data, see Figure 1 below).  Some data sources were available for Pennsylvania or New York only, and continuity across the state line was lacking.  In particular, streams data were at different resolutions and used very different classification systems.Some priority areas were also delineated on paper maps by USFS personnel who could not be at the workshop.  These paper maps were received on the day of the workshop, and included priority areas within the boundary of the Allegheny National Forest only.Priority areas were digitized (as drawn by workshop participants and USFS personnel) in ArcMap by Sarah Johnson (PA TNC) on August 22, 2013.  Input on refinement of the priority areas was gathered from the High Allegheny Hemlock Conservation Project Steering Committee on September 12, and priority areas were refined and attributed with relevant data on Sept 26, 2013.  Experts in the fields of forestry, wildlife biology, aquatic biology, plant ecology, entomology and forest health, and public recreation reviewed the priority areas and attribute data, and revisions were made from Oct 15 to 31, 2013.  The priority areas were then shared publicly via TNC’s ArcOnline account (ESRI), in a web map (http://maps.tnc.org/hwa_cma)  on October 31, 2013.  Public comments and further US Forest Service personnel priority areas and comments were incorporated on to finalize the High Allegheny Plateau Hemlock Priority Conservation Areas.
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