Subalpine and High-elevation Spruce-Fir Forest in the Delineation of areas above 2700 feet Evaluation of harvest history Northeast: An Assessment of Ecological Value and 567 separate areas greater than one Right: 3,677-acre area around Kibby Mountain in the northern Boundary Mountains of acre in size totaling 475,600 acres. . Existing Kibby wind power project is visible in the southern part of the area. Conservation Priorities Extensive recent (R) and older (O) harvesting is evident (outlined in yellow); additional 22 areas larger than 5,000 acres David Publicover and Kenneth Kimball, Appalachian Mountain Club, Gorham, NH older harvesting may have taken place in other parts of the area but is not evident. shown in dark red. Area contains a documented occurrence of the rare (S3) Fir - Heartleaved Birch Introduction and Project Goals (3 additional areas in MA Subalpine Forest natural community, though the value of this occurrence is diminished High-elevation areas comprise a small totaling 1,865 acres not shown.) by past harvesting. part of the Northern Forest but Below: 2,097-acre area around , about four miles northeast of provide significant ecological value. Kibby Mountain. Area contains little evidence of past harvesting (though some older They represent the most natural part harvesting has most likely occurred). Fir – Heartleaved Birch Subalpine Forest has not of the landscape and provide critical been documented but is likely to be present. Delineating potential undocumented habitat for a number of wildlife occurrences of this community is an important component of this on-going research. species of concern, including This area may be a relatively high priority for future high-elevation conservation. Bicknell’s thrush, pine marten and Canada lynx. Numerous state and regional wildlife conservation plans recommend the identification and conservation of the most valuable areas of high-elevation coniferous forest. These areas also have important adaptive value in the face of future climate change because of their potential to serve as stable refugia for coniferous forest species as this habitat declines at lower elevation (as occurred during the Subalpine forest, Dixville Peak, NH post-glacial Hypsithermal period of 9,000 to 5,000 YBP). Of particular interest is subalpine forest, a subset of high-elevation coniferous state forest. Dominated by balsam fir and heartleaved paper birch, it provides the primary habitat for Bicknell’s thrush, the Northeast’s rarest songbird. While alpine areas are well-documented and generally well-protected, and the extent of broader high-elevation coniferous forest can be readily estimated from land Conservation status Base image: 2009 National Agriculture Imagery Program. cover data, the extent and conservation status of true subalpine forest is less well known.

The goal of this project is to proactively assess the ecological value of the Maine’s Western High Mountains Preliminary results numerous distinct areas of high-elevation spruce-fir forest across the Northern Maine’s Western High Mountains region, stretching from • Areas above 2700’ make up just 1.4% of the three- Forest of Maine, New Hampshire, Vermont and Massachusetts in order to Saddleback to Bigelow, is the region’s highest high-elevation better resolve the current conflicts between wind power development and the state region. conservation priority. Its conservation values include: the largest • protection and stewardship of these areas. The supporting objectives are to: contiguous area of land above 2700’ in the Northeast outside of While the overall level of conservation of these areas is high (78% of the total area above 2700’), there • the White Mountain National Forest, 9 of the 13 highest summits assess the current condition of all distinct areas above 2700 feet in in Maine, multiple documented occurrences of rare alpine and remain large areas that are unconserved, especially in elevation (with a focus on intact cores of spruce-fir habitat); subalpine vegetation communities, extensive Bicknell’s thrush Maine and northern New Hampshire. Less than half • assess the relative value of these areas both as current habitat and as habitat, multiple large roadless areas, and identification as a of the high-elevation area in Maine is conserved. adaptive refugia in the face of future climate change; priority Habitat Focus Area in Maine’s Comprehensive Wildlife • The largest areas are the most highly protected – the • assess the relative risk of these areas to wind power development; Conservation Strategy. ten areas over 10,000 acres in size (which in total • assess the relative importance of these areas to an overall regional While the Bigelow Range is fully protected, only 22% of the comprise 45% of the total area above 2700’) have conservation strategy and their value as potential mitigation sites for 20,800-acre Sugarloaf/Abraham/ Crocker area, and only 49% of almost 92% of their area conserved, and eight are at development in other high-elevation areas; the 5,800-acre Saddleback area, lie on conservation land. least 95% conserved. The two exceptions are both in • propose proactive strategies to policy makers on how to address the Conservation activity in the region is on-going, but parts of the Maine – the Sugarloaf-Abraham-Crocker and conflicts between development and conservation of these areas. area remain at risk. Extensive areas have been heavily Kennebago Divide areas. harvested, a wind power project has been proposed for • Areas between 1,000 and 10,000 acres in size make Methodology Redington and Black Nubble mountains (but denied a permit), and the ridges west of Saddleback Ski Area and east of Sugarloaf up over 40% of the total extent of high-elevation land The project will utilize the following methodology: Ski area are potential wind power development sites. but have a lower level of protection, as only two- thirds of their area is conserved. 1) Delineate discrete blocks of land above 2700 feet in Maine, New • 22 areas across the three states have at least 1,000 Hampshire, Vermont and New Hampshire using USGS 30-meter DEM data acres of unconserved land, and four areas (all in (complete). (New York will be added pending additional funding). Maine) have at least 5,000 acres. 2) Assess the current conservation status of each area. • Some of these areas have known significant resource 3) Assess the value and condition of each area based on its size, elevation values (rare natural communities, large roadless range, extent of past logging and remaining intact core block of spruce-fir areas , Wildlife Action Plan focus areas, etc.) habitat (based on recent and historical satellite imagery and aerial photography), known Natural Heritage Inventory element occurrences, Next steps existing development, landscape context, recognition as a priority area in state Wildlife Action Plans and other regional conservation assessments The next steps in this research include: and other relevant factors. • Completing assessment of harvesting history, 4) Delineate potential undocumented occurrences of rare subalpine forest including examination of older aerial photography to natural community based on aerial photography and field verification. delineate earlier (<40 years ago) harvesting. 5) Assess the potential for wind power development based on published • Identify potential undocumented occurrences of wind resource data and topographic suitability. intact subalpine (fir-heartleaved birch) forest. We 6) Rank areas on a value/risk scale to identify areas of high ecological value at will be working with Maine Natural Areas Program in high risk of development. that state; MNAP will provide valuable field 7) Identify potential conservation or mitigation strategies for these areas. verification of identified potential areas.