B028
Causes and consequences of changing disturbance regimes in boreal forests across the globe

Session ID#: 80445

Session Description:
Arctic and sub-arctic boreal forests are warming at an accelerated rate compared to the rest of the globe. Coincident with this warming have been changes in disturbance regimes, including increased wildfire activity, insect and pathogen outbreaks, and permafrost thermokarsting, which can disrupt forest ecosystem structure, composition, and function, and affect forest recovery. Boreal forest resiliency post-disturbance could have large consequences for global climate because of complex biogeophysical feedbacks that impact carbon sequestration, hydrological cycling, and surface energy fluxes. To better understand the interacting processes that determine boreal forest resiliency and vulnerability following disturbance and feedbacks to the climate system, we invite contributions from scientists whose research focuses on the causes and consequences of changing disturbance regimes in boreal forests across the globe. Presentations can address any spatial or temporal scale, from microbial to remotely sensed landscape-level processes affected by the relationships between climate, disturbance, and vegetation in the boreal forest.
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0428 Carbon cycling [BIOGEOSCIENCES]
0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
0475 Permafrost, cryosphere, and high-latitude processes [BIOGEOSCIENCES]

Primary Convener:  Heather Dawn Alexander, Mississippi State University, Forestry, Starkville, MS, United States and jennie demarco
Conveners:  Jennie DeMarco, Western Colorado University, Gunnison, CO, United States, Alison Paulson, Mississippi State University, Forestry, Starkville, MS, United States, Rebecca E Hewitt, Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States and jennie demarco
Primary Liaison:  Heather Dawn Alexander, Mississippi State University, Forestry, Starkville, MS, United States and jennie demarco
 
Impacts of increasing wildfire severity on the long-term carbon dynamics of Alaskan boreal forests (Invited) (487520)
Michelle C Mack1, Xanthe J Walker1, Jill F Johnstone2, Heather Dawn Alexander3, April M Melvin4 and Samantha Miller1, (1)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (2)University of Saskatchewan, Saskatoon, SK, Canada, (3)Mississippi State University, Forestry, Starkville, MS, United States, (4)National Academy of Sciences, Polar Research Board, Washington, DC, United States
 
The Compensation Effect of Winter Snow on Larch Growth over Northeast China (489690)
Yuanqiao Li1, Xiuchen WU1, Yongmei Huang2, Xiaoyan Li1, Fangzhong Shi1, Shoudong Zhao2, Yuhong Tian1, Pei Wang1, Shulei Zhang2, Cicheng Zhang1, Yang Wang2, Chongyang Xu3 and Pengwu Zhao4, (1)Beijing Normal University, Faculty of Geographical Science, Beijing, China, (2)Beijing Normal University, Beijing, China, (3)Peking University, Beijing, China, (4)Inner Mongolia Agricultural University, College of forestry, Hohhot, China
 
Drivers and consequences of an intensifying fire regime in northern high latitudes (Invited) (490818)
Sander Veraverbeke1, Yang Chen2, Clément Delcourt3, Brian Izbicki4, Elena A. Kukavskaya5, Michelle C Mack6, Trofim C Maximov7, Roman E Petrov8, James Tremper Randerson2, Brendan M Rogers9, Rebecca Scholten3, Tatiana Shestakova10, Guido van der Werf11, Dave van Wees12 and Xanthe Walker13, (1)Vrije Universiteit, Amsterdam, Netherlands, (2)University of California Irvine, Department of Earth System Science, Irvine, CA, United States, (3)Vrije Universiteit Amsterdam, Amsterdam, Netherlands, (4)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (5)V.N. Sukachev Institute of Forest of the Siberian Branch of the Russian Academy of Sciences - separate subdivision of the FRC KSC SB RAS, Krasnoyarsk, Russia, (6)University of Florida, Gainesville, FL, United States, (7)Institute for Biological Problems of the Cryolithozone, Siberian Branch, Russian Academy of Science, Yakutsk, Russia, (8)Institute for Biological Problems of Cryolithozone, Siberian Branch of Russian Academy of Sciences, Yakutsk, Russia, (9)University of California Irvine, Irvine, CA, United States, (10)Woods Hole Research Center, Falmouth, MA, United States, (11)VU University Amsterdam, Faculty of Science, Amsterdam, Netherlands, (12)VU University Amsterdam, Amsterdam, Netherlands, (13)Northern Arizona University, Flagstaff, United States
 
Non-native earthworms in the boreal forest: implications for soil carbon storage (495432)
Justine Lejoly1, Sylvie Quideau1 and Jerome Laganiere2, (1)University of Alberta, Renewable Resources, Edmonton, AB, Canada, (2)Natural Resources Canada, Laurentian Forestry Centre, Québec, QC, Canada
 
Implications of an Intensified Fire Regime Across Interior Alaska’s Spatiotemporal Black Spruce Dominated Landscape: Relationships Among Plant Diversity, Functional Traits and Fire (496988)
Emilia Grzesik, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States, Teresa N Hollingsworth, USDA Forest Service, PNW Research Station, Fairbanks, AK, United States, Roger Ruess, University of Alaska Fairbanks, Fairbanks, AK, United States and Merritt R Turetsky, University of Guelph, Guelph, ON, Canada
 
Fire, Forest, Ice, and Fungi: Exploring the Mesh of Relationships that Drive Seedling Recruitment in the Siberian Arctic (497148)
Sarah Frankenberg1, Ryan W McEwan1, Heather Dawn Alexander2, Rebecca E Hewitt3, Jennie DeMarco4 and Alison Paulson2, (1)University of Dayton, Biology, Dayton, OH, United States, (2)Mississippi State University, Forestry, Starkville, MS, United States, (3)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (4)Western Colorado University, Gunnison, CO, United States
 
Increases in the frequency and severity of fires is putting the southern boreal forest at risk (500355)
Arden Llewellyn Burrell1, Qiaoqi Sun2, Robert Baxter3, Jorg D Kaduk4, Elena A. Kukavskaya5 and Kirsten M Barrett1, (1)University of Leicester, Leicester, United Kingdom, (2)University of Durham, Durham, United Kingdom, (3)University of Durham, Durham, DH1, United Kingdom, (4)University of Leicester, Leicester, LE1, United Kingdom, (5)V.N. Sukachev Institute of Forest of the Siberian Branch of the Russian Academy of Sciences - separate subdivision of the FRC KSC SB RAS, Krasnoyarsk, Russia
 
Bottom-up control of carbon combustion from boreal wildfires (507310)
Xanthe J Walker1, Jennifer Lynn Baltzer2, Kirsten Barrett3, Laura L Bourgeau-Chavez4, Nicola Day5, William de Groot6, Catherine M Dieleman7, Scott J Goetz8, Elizabeth Embury Hoy9,10, Liza K. Jenkins11, Jill F Johnstone12, Evan S Kane13, Marc-Andre Parisien14, Stefano Potter15, Brendan M Rogers16, Edward Schuur17, Merritt R Turetsky18, Sander Veraverbeke19, Ellen Whitman20 and Michelle C Mack1, (1)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (2)Wilfrid Laurier University, Biology Department, Waterloo, ON, Canada, (3)Centre for Landscape and Climate Research, School of Geography, Geology and the Environment, University of Leicester, Leicester, United Kingdom, (4)Michigan Technological University, MI, USA, Michigan Tech Research Institute, Ann Arbor, MI, United States, (5)Wilfred Laurier University, Ontario, Canada, (6)Canadian Forest Service, Sault Ste. Marie,, ON, Canada, (7)University of Guelph, Department of Integrative Biology, Guelph, ON, Canada, (8)Northern Arizona University, SICCS, Flagstaff, AZ, United States, (9)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (10)Global Science and Technology Inc Greenbelt, Greenbelt, MD, United States, (11)Michigan Technological University, Ann Arbor, MI, United States, (12)University of Saskatchewan, Saskatoon, SK, Canada, (13)Michigan Technological University, School of Forest Resources and Environmental Sciences, Houghton, MI, United States, (14)Natural Resources Canada - Canadian Forest Service, Edmonton, AB, Canada, (15)Woods Hole Research Center, Falmouth, MA, United States, (16)University of California Irvine, Irvine, CA, United States, (17)Univ Florida, Gainesville, FL, United States, (18)University of Guelph, Guelph, ON, Canada, (19)Caltech, Pasadena, CA, United States, (20)Natural Resources Canada, Northern Forestry Centre, Canadian Forest Service, Edmonton, AB, Canada
 
Carbon loss from boreal peatland wildfires greater than purported: insights from high resolution lidar and field data (510873)
Kailyn Nelson1, Dan K Thompson2, Chris Hopkinson1, Richard M Petrone3 and Laura Chasmer4, (1)University of Lethbridge, Lethbridge, AB, Canada, (2)Canadian Forest Service, Ottawa, ON, Canada, (3)University of Waterloo, Geography and Environmental Management, Waterloo, ON, Canada, (4)University of Lethbridge, Geography, Lethbridge, AB, Canada
 
Boreal W”o”rming: Mechanisms and Limiting Factors of Earthworm Invasion in Arctic and Sub-arctic Ecosystems (512516)
Kyungsoo Yoo1, Adrian Allan Wackett1, Tyler Baumann2, Derek Sikes3, Matt Bowser4, John Morton4, Stephen Brown5, Lee Frelich6, Sara Bauer2, Robin Andrews7, Claudia Ihl8, Mingchu Zhang9, Julie Riley10 and Jonatan Klaminder11, (1)Univ of MN-Soil, Water&Climate, St. Paul, MN, United States, (2)University of Minnesota, Dept. of Soil, Water, and Climate, St. Paul, MN, United States, (3)University of Alaska, Fairbanks, University of Alaska Museum, Fairbanks, AK, United States, (4)Kenai National Wildlife Refuge, Soldotna, United States, (5)University of Alaska Fairbanks, Cooperative Extension Service, Palmer, United States, (6)University of Minnesota, The University of Minnesota Center for Forest Ecology, St. Paul, MN, United States, (7)University of Alaska, Fairbanks, Dept of Biology and Wildlife, Fairbanks, United States, (8)University of Alaska, Fairbanks, Northwest campus, Nome, United States, (9)University of Alaska Fairbanks, Fairbanks, AK, United States, (10)University of Alaska, Fairbanks, Department of Agriculture and Horticulture, Fairbanks, AK, United States, (11)Jonatan Klaminder, Umeä, Sweden
 
Assessing land cover change and lowland vulnerability to permafrost thaw, altered fire regime, and hydrologic changes on Interior Alaska (527782)
Genet Helene, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States, Torre Jorgenson, Alaska Ecoscience, Fairbanks, AK, United States, Thomas A Douglas, USA CRREL Alaska, Fort Wainwright, AK, United States, Heather Greaves, University of Idaho, Moscow, ID, United States, Christopher A Hiemstra, US Army Corps of Engineers Washington DC, Washington, DC, United States, Bruce G. Marcot, USDA Forest service, Portland Forestry Sciences Laboratory, Portland, OR, United States and Merritt R Turetsky, University of Guelph, Guelph, ON, Canada
 
Effects of spatial heterogeneity on successional trajectories following repeat disturbances in boreal Interior Alaska (531026)
Katherine Hayes, University of Colorado Denver, Integrative and Systems Biology, Denver, CO, United States and Brian Buma, University of Colorado Denver, Department of Integrative Biology, Denver, CO, United States
 
Downward Radiation and Limited Water Availability May Supress Forest Growth Across the Forest-Steppe Ecotone in Southern Siberia (537317)
Konstantina Bika1, Matthias Forkel2, Wouter Dorigo2, Arden Burrell1, Elena A. Kukavskaya3 and Kirsten Barrett1, (1)Centre for Landscape and Climate Research, School of Geography, Geology and the Environment, University of Leicester, Leicester, United Kingdom, (2)Vienna University of Technology, Department of Geodesy and Geoinformation, Vienna, Austria, (3)V.N. Sukachev Institute of Forest of the Siberian Branch of the Russian Academy of Sciences - separate subdivision of the FRC KSC SB RAS, Krasnoyarsk, Russia
 
Widespread ecological reorganization of boreal forests following severe wildfires (579341)
Jennifer Lynn Baltzer1, Nicola Day2, Xanthe Walker3, Michelle C Mack4, Heather Dawn Alexander5, Dominique Arseneault6, Jennifer Barnes7, Yan Boucher8, Laura L Bourgeau-Chavez9, Carissa Brown10, Suzanne Carrière11, David F Greene12, Sylvie Gauthier13, Marc-Andre Parisien14, Kirsten A Reid10, Brendan M Rogers15, Carl Roland16, Luc Sirois17, Sarah Stehn18, Dan K Thompson19, Merritt R Turetsky20, Sander Veraverbeke21, Ellen Whitman22, Jian Yang23 and Jill F Johnstone24, (1)Wilfrid Laurier University, Biology Department, Waterloo, ON, Canada, (2)Wilfred Laurier University, Ontario, Canada, (3)Northern Arizona University, Flagstaff, United States, (4)University of Florida, Gainesville, FL, United States, (5)Mississippi State University, Forestry, Starkville, MS, United States, (6)University of Quebec at Rimouski UQAR, Département de biologie, chimie et géographie, Rimouski, QC, Canada, (7)National Parks Service, Washington, DC, United States, (8)Gouvernement du Québec, Ministère des Forêts, de la Faune et des Parcs, Québec, QC, Canada, (9)Michigan Technological University, MI, USA, Michigan Tech Research Institute, Ann Arbor, MI, United States, (10)Memorial University of Newfoundland, Geography, St John's, NF, Canada, (11)Government of the Northwest Territories, Environment and Natural Resources, Yellowknife, NT, Canada, (12)Humboldt State University, Forestry and Wildlife Resources, Arcata, CA, United States, (13)Canadian Forest Service, Québec, QC, Canada, (14)Natural Resources Canada - Canadian Forest Service, Edmonton, AB, Canada, (15)University of California Irvine, Irvine, CA, United States, (16)National Park Service Denali Park, Denali Park, AK, United States, (17)University of Quebec at Rimouski UQAR, Rimouski, QC, Canada, (18)US National Parks Service, Denali National Park and Preserve, Flagstaff, AK, United States, (19)Canadian Forest Service, Ottawa, ON, Canada, (20)University of Guelph, Guelph, ON, Canada, (21)Caltech, Pasadena, CA, United States, (22)Natural Resources Canada, Northern Forestry Centre, Canadian Forest Service, Edmonton, AB, Canada, (23)University of Kentucky, College of Agriculture, Food and Environment, Lexington, KY, United States, (24)University of Saskatchewan, Saskatoon, SK, Canada
 
Post-fire larch recruitment patterns in the Siberian Arctic indicate forest loss in many areas (584556)
Heather Dawn Alexander1, Alison Paulson1, Jennie DeMarco2, Jeremy W Lichstein3, Michael M Loranty4, Michelle C Mack5, Rebecca E Hewitt6, Ryan W McEwan7, Eric Borth7, Sarah Frankenberg7, Nikita Zimov8, Sergey P Davydov9 and Valentin Spektor10, (1)Mississippi State University, Forestry, Starkville, MS, United States, (2)New Mexico State University, Las Cruces, NM, United States, (3)University of Florida, Ft Walton Beach, FL, United States, (4)Colgate University, Geography, Hamilton, NY, United States, (5)University of Florida, Gainesville, FL, United States, (6)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (7)University of Dayton, Biology, Dayton, OH, United States, (8)Northeast Scientific Station of Pacific Institute for Geography of Russian Academy of Sciences, Cherskiy, Russia, (9)Far Eastern Branch of Russian Academy of Sciences, Pacific Institute of Geography, North-East Science Station, Cherskii, Russia, (10)Melnikov Permafrost Institute SB RAS, Yakutsk, Russia
 
Post-fire larch (Larix cajanderi) recruitment in central Siberia is highest in areas with increased fire severity (592878)
Alison Paulson1, Heather Dawn Alexander1, Jennie DeMarco2, Rebecca E Hewitt3, Brian Izbicki3, Jeremy W Lichstein4, Michael M Loranty5, Michelle C Mack3, Ryan W McEwan6 and Valentin Spektor7, (1)Mississippi State University, Forestry, Starkville, MS, United States, (2)Western Colorado University, Gunnison, CO, United States, (3)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (4)University of Florida, Ft Walton Beach, FL, United States, (5)Colgate University, Geography, Hamilton, NY, United States, (6)University of Dayton, Biology, Dayton, OH, United States, (7)Melnikov Permafrost Institute SB RAS, Yakutsk, Russia
 
Wildfire Driven Succession of Microbial Community and Function in Interior Alaska - Shedding Light on the Dynamic Relationship Between Microbial and Plant Communities (597660)
Ursel Schuette, University of Alaska Fairbanks, Fairbanks, AK, United States, Tracie Haan, University of Alaska Fairbanks, Biology & Wildlife, Fairbanks, AK, United States, Sara Kline, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, United States, Mary Beth Leigh, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States and Devin Drown, University of Alaska Fairbanks, Institute of Artic Biology, Fairbanks, AK, United States
 
Denitrification and Nitrous Oxide Production in Boreal Terrestrial and Aquatic Ecosystems Varying in Permafrost and Fire Disturbance History (622393)
Melanie Burnett, University of Alaska Fairbanks, Biology and Wildlife, Fairbanks, AK, United States and Tamara Harms, University of Alaska-Fairbanks, Fairbanks, AK, United States
 
Comparative water relations and moisture-limited growth of co-occurring white spruce and paper birch in interior Alaska: implications for deciduous dominance of the Boreal Forest (622416)
Patrick Sullivan1, Sarah Ellison2, Annalis Brownlee1 and Sean M.P. Cahoon2, (1)University of Alaska Anchorage, Anchorage, AK, United States, (2)USDA Forest Service, Pacific Northwest Research Station, Anchorage, AK, United States
 
Post-fire ecosystem and carbon recovery in the Northwest Territories, Canada (627252)
Kristen Bill1, Merritt R Turetsky1, Jennifer Lynn Baltzer2, Nicola Day3, Catherine M Dieleman4, Xanthe Walker5, Michelle C Mack6 and Jill F Johnstone7, (1)University of Guelph, Guelph, ON, Canada, (2)Wilfrid Laurier University, Biology, Waterloo, ON, Canada, (3)Wilfred Laurier University, Ontario, Canada, (4)University of Guelph, Department of Integrative Biology, Guelph, ON, Canada, (5)Northern Arizona University, Flagstaff, United States, (6)University of Florida, Gainesville, FL, United States, (7)University of Saskatchewan, Saskatoon, SK, Canada
 
Stream Chemistry Indicates Catchment Response to Disturbance and Regional Warming in the Boreal Forest (630107)
Adela Contreras, University of California, Davis, Davis, CA, United States, Alex Webster, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States, Rachel L. Willis, University of Alaska Fairbanks, Fairbanks, United States and Tamara Harms, University of Alaska-Fairbanks, Fairbanks, AK, United States
 
Post-fire seedling recruitment in high-latitude Siberian Larch (Larix cajanderi) forests associated with lower graminoid composition (630980)
Jennie DeMarco1, Sarah Frankenberg2, Alison Paulson3, Heather Dawn Alexander3, Jeremy W Lichstein4, Eric Borth2, Rebecca E Hewitt5, Michael M Loranty6, Michelle C Mack7 and Ryan W McEwan2, (1)Organization Not Listed, Washington, DC, United States, (2)University of Dayton, Biology, Dayton, OH, United States, (3)Mississippi State University, Forestry, Starkville, MS, United States, (4)University of Florida, Ft Walton Beach, FL, United States, (5)Northern Arizona University, Center for Ecosystem Science and Society, Flagstaff, AZ, United States, (6)Colgate University, Geography, Hamilton, NY, United States, (7)University of Florida, Gainesville, FL, United States
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