From October 5th-7th, 2021, The Whitebark Pine Ecosystem Foundation (WPEF) virtually hosted the second high-five conference (H5II), which brought together the world’s leading experts on North America’s high-elevation pines. The four main objectives of H5II, and by extension this publication, are to: (1) bring together scientists, managers, and concerned citizens to exchange information on the ecology and management of these important pines; (2) learn about the threats and current status of pine populations; (3) describe efforts to mitigate threats through restoration techniques and action plans; and (4) build a foundation for the synthesis of research efforts and management approaches.

Research and Management of High-Elevation Five-Needle Pines in Western North America collects thirteen submitted papers from H5II that cover a wide range of topics, all with the greater goal of benefiting the six high-elevation five-needle pine species. These six species are: whitebark (Pinus albicaulis Engelm.), limber (P. flexilis James), southwestern white (P. strobiformis Engelm.), foxtail (P. balfouriana Grev. & Balf.), Great Basin bristlecone (P. longaeva D.K. Bailey), and Rocky Mountain bristlecone (P. aristata Engelm.) Also included are over 100 abstracts of the many presentations offered during H5II.

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Submissions from 2022

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Front Matter, Whitebark Pine Ecosystem Foundation

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Preface and Acknowledgements, Whitebark Pine Ecosystem Foundation

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Organizing Committee and Program Schedule, Whitebark Pine Ecosystem Foundation

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Variable Demographic Patterns Interact With Disturbance and Climate to Shape Limber Pine Population Viability, R. Justin DeRose, Zachary Merrill, Maegen Rochner, and Matthew Bekker

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Subalpine Tree Species Classification Using Remote Sensing Methods and Techniques, Stephanie Jouvet and Brendan Wilson

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Mountain Marathon: Endangered Limber and Whitebark Pine Recovery in Alberta, Jodie Krakowski and Robin Gutsell

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Alpine Treeline Ecotones are Potential Refugia for a Montane Pine Species Threatened by Bark Beetle Outbreaks, Colin T. Maher, Constance I. Millar, David L.R. Affleck, Robert E. Keane, Anna Sala, Claudine Tobalske, Andrew J. Larson, and Cara R. Nelson

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Winter Damage is More Important than Summer Temperature for Maintaining the Krummholz Growth Form Above Alpine Treeline, Colin T. Maher, Cara R. Nelson, and Andrew J. Larson

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Long-term Assessment of the Efficacy of Prescribed Burning and Mechanical Cutting for Restoration of Whitebark Pine, Enzo Martelli, Robert E. Keane, and Cara R. Nelson

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How to Retain Whitebark Pine in Timber Harvests, Michael Murray, Jenny Berg, and Dave Huggard

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Preparing for Invasion: Rust Resistance in Limber, Great Basin Bristlecone, and Rocky Mountain Bristlecone Pines, Anna W. Schoettle, Angelia Kegley, Richard A. Sniezko, Kelly S. Burns, Detlev Vogler, Phyllis Pineda Bovin, and Gretchen Baker

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Field Spectroradiometer Methods for Remotely Identifying Treeline Vegetation Species: A Case Study Using Limber Pine in Rocky Mountain National Park, Laurel A. Sindewald, Matthew D. Cross, Ted Scambos, Diana F. Tomback, and Peter J. Anthamatten

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Repeat Photography Helps Tell the Story of Whitebark Pine, Jane Kapler Smith, Garon C. Smith, and Stephen F. Arno

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Whitebark Pine Community Processes, Environment and Human Influences: Revisiting Montana State University Work of 1971-2000, T. Weaver

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Maintaining Pinus Strobiformis, a Tree Species Threatened by Climate Change and White Pine Blister Rust, Nicholas Wilhelmi, Kristen M. Waring, Richard A. Sniezko, Gregory J. Reynolds, and Jeremy S. Johnson

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Forest Structure Twenty Years After the First Whitebark Pine Prescribed Burn in Banff National Park, Brendan Wilson, Stephanie Jouvet, Jon Stuart-Smith, and Rob Walker

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Conference Abtracts, Whitebark Pine Ecosystem Foundation

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Poster Abstracts, Whitebark Pine Ecosystem Foundation

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Registrant List, Whitebark Pine Ecosystem Foundation

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Full Issue, Whitebark Pine Ecosystem Foundation