Appalachian Trail Vital Signs
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National Park Service U.S. Department of the Interior Northeast Region Boston, Massachusetts Appalachian Trail Vital Signs Technical Report NPS/NER/NRTR--2005/026 ON THE COVER Androscoggin River, ME Blood Mountain Sunset, GA Laurel Falls, TN Mt Katahdin, ME © Photos by Joe Cook Appalachian Trail Vital Signs Technical Report NPS/NER/NRTR--2005/026 Greg Shriver1, Tonnie Maniero2, Kent Schwarzkopf3, Dan Lambert4, Fred Dieffenbach1, Don Owen3, Y. Q. Wang5, Joy Nugranad- Marzilli5, Geri Tierney6, Casey Reese3, Theresa T. Moore1 1National Park Service Inventory and Monitoring Program 54 Elm Street Woodstock, Vermont 05091 2National Park Service Northeast Region 15 State Street Boston, Massachusetts 02109 3National Park Service Appalachian National Scenic Trail Harpers Ferry Center Harpers Ferry, West Virginia 25425 4Vermont Institute of Natural Science Conservation Biology Department 2723 Church Hill Road Woodstock, Vermont 05091 5University of Rhode Island Department of Natural Resource Science Kingston, Rhode Island 02881 6State University of New York College of Environmental Science and Forestry 1 Forestry Drive Syracuse, New York 13210 November 2005 U.S. Department of the Interior National Park Service Northeast Region Boston, Massachusetts The Northeast Region of the National Park Service (NPS) comprises national parks and related areas in 13 New England and Mid- Atlantic states. The diversity of parks and their resources are reflected in their designations as national parks, seashores, historic sites, recreation areas, military parks, memorials, and rivers and trails. Biological, physical, and social science research results, natural resource inventory and monitoring data, scientific literature reviews, bibliographies, and proceedings of technical workshops and conferences related to these park units are disseminated through the NPS/NER Technical Report (NRTR) and Natural Resources Report (NRR) series. The reports are a continuation of series with previous acronyms of NPS/PHSO, NPS/MAR, NPS/BSO-RNR and NPS/NERBOST. Individual parks may also disseminate information through their own report series. Natural Resources Reports are the designated medium for information on technologies and resource management methods; “how to” resource management papers; proceedings of resource management workshops or conferences; and natural resource program descriptions and resource action plans. Technical Reports are the designated medium for initially disseminating data and results of biological, physical, and social science research that addresses natural resource management issues; natural resource inventories and monitoring activities; scientific literature reviews; bibliographies; and peer-reviewed proceedings of technical workshops, conferences, or symposia. Mention of trade names or commercial products does not constitute endorsement or recommendation for use by the National Park Service. Print copies of reports in these series, produced in limited quantity and only available as long as the supply lasts, or preferably, file copies on CD, may be obtained by sending a request to the address on the back cover. Print copies also may be requested from the NPS Technical Information Center (TIC), Denver Service Center, PO Box 25287, Denver, CO 80225-0287. A copy charge may be involved. To order from TIC, refer to document D-122. This report may also be available as a downloadable portable document format file from the Internet at http://www.nps.gov/nero/ science/ or http://www1.nature.nps.gov/im/units/netn/index.cfm Please cite this publication as: Shriver, G., T. Maniero, K. Schwarzkopf, D. Lambert, F. Dieffenbach, D. Owen, Y. Q. Wang, J. Nugranad-Marzilli, G. Tierney, C. Reese, T. Moore. November 2005. Appalachian Trail Vital Signs. Technical Report NPS/NER/NRTR--2005/026. National Park Service. Boston, MA. NPS D-122 November 2005 Opposite Page Photos: Backpacker on Max Patch, NC Culvers Gap, NJ Moon at Springer Mountain, GA Blood Mountain Shelter, GA ©Photos by Joe Cook Appalachian Trail Vital Signs “The Appalachian Trail is not merely a footpath through the wilderness, but a footpath of the wilderness.” --Benton MacKaye Background: The Appalachian Trail began as a vision of forester Benton MacKaye and was developed by volunteers and opened as a continuous trail in 1937. It was designated as the first National Scenic Trail by the National Trails System Act of 1968. Appalachian National Scenic Trail (AT): The Appalachian National Scenic Trail is administered primarily as a footpath by the National Park Service in cooperation with the United States Department of Agriculture Forest Service, the Appalachian Trail Conservancy and the 14 States encompassing the Trail, providing for maximum outdoor recreation potential as an extended trail and for the conservation and enjoyment of the nationally significant scenic, historic, natural, and cultural resources of the areas through which the Trail passes. It is the mission of the Appalachian National Scenic Trail to foster the Cooperative Management System of the Appalachian National Scenic Trail in order to preserve and provide for the enjoyment of the varied scenic, historic, natural and cultural qualities of the areas between the states of Maine and Georgia through which the Trail passes. The Appalachian Trail is a way, continuous from Maine to Georgia, for travel on foot through the wild, scenic, wooded, pastoral, and culturally significant lands of the Appalachian Mountains. It is a means of sojourning among these lands, such that visitors may experience them by their own unaided efforts. The body of the Trail is provided by the lands it traverses, and its soul is in the living stewardship of the volunteers and partners of the Appalachian Trail Cooperative Management System. Appalachian Trail Conservancy (ATC): The Appalachian Trail Conservancy is a volunteer-based, private non-profit organization dedicated to the conservation of the 2,175-mile Appalachian National Scenic Trail, a 280,000-acre greenway extending from Maine to Georgia. The mission of the ATC is to ensure that future generations will enjoy the clean air and water, scenic vistas, wildlife and opportunities for simple recreation and renewal along the entire Trail corridor. Formerly known as the Appalachian Trail Conference, the ATC is an 80-year-old organization whose roots are traced to the vision of Benton MacKaye, who convened and organized the first Appalachian Trail “conference” – a gathering of hikers, foresters and public officials – in Washington, D.C., in 1925. Today, the ATC works with 30 maintaining clubs and multiple partners to engage the public in conserving this essential American resource. ATC coordinates the Appalachian Trail’s management and protection in conjunction with a wide range of partners, including the Appalachian National Scenic Trail (NPS), USDA Forest Service, 14 states, and 30 Trail-maintaining clubs. Table of Contents Introduction ................................................................................................. 1 Greg Shriver Chapter One: Ozone .................................................................................... 7 Tonnie Maniero Chapter Two: Visibility ............................................................................. 13 Tonnie Maniero Chapter Three: Atmospheric Deposition ................................................... 17 Tonnie Maniero Chapter Four: Migratory Breeding Birds .................................................. 21 Greg Shriver Chapter Five: Mountain Birds ................................................................... 29 Dan Lambert Chapter Six: Forest Vegetation .................................................................. 35 Greg Shriver Chapter Seven: Rare, Threatened, and Endangered Species ..................... 41 Kent Schwarzkopf and Geri Tierney Chapter Eight: Invasive Species ................................................................ 45 Fred Dieffenbach Chapter Nine: Visitor Usage ...................................................................... 55 Don Owen Chapter Ten: Alpine and High Elevation Vegetation ................................. 61 Kent Schwarzkopf and Casey Reese Chapter Eleven: Landscape Dynamics ...................................................... 67 Y.Q. Wang, Joy Nugranad-Marzilli and Greg Shriver Bibliography ............................................................................................... 79 Appalachian Trail Vital Signs Introduction 1 Introduction The Appalachian National Scenic Trail (AT) extends along almost the entire Appalachian Mountain range in the eastern United States. The trail corridor averages 1,000 feet wide, spans fully 2,175 miles from Maine to Georgia and repeatedly traverses the major elevational, latitudinal, ecological and cultural gradients that characterize the eastern United States. Appalachian Trail lands include approximately 280,000 acres, making it one of the largest parks in the east. Knowing the condition of natural resources within national parks is fundamental to the National Park Service’s (NPS) ability to manage park resources Rhododendron: Round Bald, TN © Joe Cook “unimpaired for the enjoyment of future generations.” The purpose of this document is to present the list of Appalachian Trail Vital Signs and determine of impending threats. The challenge of protecting and what existing information from ongoing monitoring managing a park’s natural resources requires a multi- programs could be used and interpreted for the agency, ecosystem approach because most