The Eastern Hemlock, massive and majestic, has played a unique role in structuring northeastern forest environments, from Nova Scotia to Wisconsin and through the Appalachian Mountains to North Carolina, Tennessee, and Alabama. A "foundation species" influencing all the species in the ecosystem surrounding it, this iconic North American tree has long inspired poets and artists as well as naturalists and scientists. Five thousand years ago, the hemlock collapsed as a result of abrupt global climate change. Now this iconic tree faces extinction once again because of an invasive insect, the hemlock woolly adelgid. Drawing from a century of studies at Harvard University's Harvard Forest, one of the most well-regarded long-term ecological research programs in North America, the authors explore what hemlock's modern decline can tell us about the challenges facing nature and society in an era of habitat changes and fragmentation, as well as global change
The Eastern Hemlock, massive and majestic, has played a unique role in structuring northeastern American forest environments, from Nova Scotia to Wisconsin and through the Appalachian Mountains to North Carolina, Tennessee and Alabama. A 'foundation species' influencing all the species in the ecosystem surroounding it, this iconic North American tree has long inspired poets and artists as well as naturalists and scientists
The Eastern Hemlock, massive and majestic, has played a unique role in structuring northeastern forest environments, from Nova Scotia to Wisconsin and through the Appalachian Mountains to North Carolina, Tennessee, and Alabama. A "foundation species" influencing all the species in the ecosystem surrounding it, this iconic North American tree has long inspired poets and artists as well as naturalists and scientists. Five thousand years ago, the hemlock collapsed as a result of abrupt global climate change. Now this iconic tree faces extinction once again because of an invasive insect, the hemlock woolly adelgid. Drawing from a century of studies at Harvard University's Harvard Forest, one of the most well-regarded long-term ecological research programs in North America, the authors explore what hemlock's modern decline can tell us about the challenges facing nature and society in an era of habitat changes and fragmentation, as well as global change
Cover -- Contents -- Foreword -- Preface -- Acknowledgments -- 1. Hemlock's Future in the Context of Its Past -- 2. An Iconic Species -- Lessons from Harvard Forests and Ecologists: I. The Pisgah Forest -- 3. Prehistory to Present -- 4. Tree-falls and Tanbark -- Lessons from Harvard Forests and Ecologists: II. Bob Marshall's Plot -- 5. Hemlock as a Foundation Species -- 6. A Range-wide Hemlock Decline -- 7. Invasion of an Exotic Pest -- 8. Cut or Girdle -- 9. Modeling the Dynamics of a Forest Giant -- 10. Reprise: Eastern Hemlock as a Foundation Species -- Lessons from Harvard Forests and Ecologists: III. The Earl Stephens Plot -- 11. When Doing Nothing Is a Viable Alternative: Insights into Conservation and Management -- Lessons from Harvard Forests and Ecologists: IV. Three Views from John Sanderson's Woodlot -- 12. Lament -- Bibliographic Essays -- References -- List of Contributors -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W -- Z.
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