GC011
Changes in Disturbance Frequency in High Latitude Ecosystems: Implications for Ecological, Hydrological, and Biogeochemical Processes
Session ID#: 80106
Session Description:
In many high latitude environments, warming temperatures associated with climate change have been linked with increases in the frequency and intensity of disturbances like wildfire and insect-driven mortality. This has important implications for ecosystem structure and composition, snow-cover dynamics, hydrological processes, biogeochemical cycling, and permafrost condition and extent. Presentations are solicited that deal with all aspects of long and short-term changes in high latitude environments induced by changing disturbance frequency, with an emphasis on integrated changes and feedbacks between physical, biogeochemical and ecological patterns and processes. A wide range of research presentations are encouraged and may encompass multiple scales, consist of empirical or modeling studies, and integrate across disciplines. Presentations that explicitly focus on interactions and feedbacks between physical, biogeochemical and/or ecological patterns and processes are especially encouraged.
Index Terms:
0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
1630 Impacts of global change [GLOBAL CHANGE]
1631 Land/atmosphere interactions [GLOBAL CHANGE]
4327 Resilience [NATURAL HAZARDS]
Primary Convener: Katherine Hayes, University of Colorado Denver, Integrative and Systems Biology, Denver, CO, United States
Conveners: Jason Shabaga, University of Florida, School of Forest Resources and Conservation, Gainesville, FL, United States, Adrienne Michelle Marshall, University of Idaho, Water Resources Program, Moscow, ID, United States and Melissa Sue Lucash, Portland State University, Portland, OR, United States
Primary Liaison: Katherine Hayes, University of Colorado Denver, Integrative and Systems Biology, Denver, CO, United States
Assessing Water Budget Resilience to Increasing Forest Fire Activity in the Subarctic Canadian Shield (496677)
Christopher Spence1, Newell Hedstrom1, Suzanne Tank2, William L Quinton3, David Olefeldt4, Stefan Goodman5 and Nicole Dion6, (1)Environment Canada Saskatoon, Saskatoon, SK, Canada, (2)University of Alberta, Biological Sciences, Edmonton, AB, Canada, (3)Wilfrid Laurier University, Geography and Environmental Studies, Waterloo, ON, Canada, (4)University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada, (5)GNWT, Yellowknife, Canada, (6)Government of the Northwest Territories, Yellowknife, NT, Canada
Energy and water balances in boreal forest with discontinuous permafrost: Implementation of a physically-based hydrological model at sites with varying disturbance histories (518454)
Adrienne Michelle Marshall1, Timothy E Link1 and Melissa Sue Lucash2, (1)University of Idaho, Water Resources Program, Moscow, ID, United States, (2)Portland State University, Portland, OR, United States
Millennial-scale dynamics of submerged macrophytes (Isoëtes spp.) reflect long-term environmental changes in mountain lakes situated in Central Europe (519489)
Alice Moravcová1, Anna Tichá2, Vachel Carter2, Daniel Vondrák3, Martina Čtvrtlíková4, Jacqueline F. N. van Leeuwen5, Willy Tinner5 and Petr Kunes2, (1)Charles University, Department of Botany, Prague, 180, Czech Republic, (2)Charles University, Department of Botany, Prague, Czech Republic, (3)Charles University, Institute for Environmental Studies, Prague, Czech Republic, (4)Biology Centre CAS, Institute of Hydrobiology, Ceske Budejovice, Czech Republic, (5)University of Bern, Institute of Plant Sciences, Bern, Switzerland
Modeling Post-fire Successional Trajectories Under Climate Change in Black Spruce Forests of Interior Alaska (531196)
Shelby Weiss, Portland State University, Geography, Portland, OR, United States, Katherine Hayes, University of Colorado Denver, Integrative and Systems Biology, Denver, CO, United States and Melissa Sue Lucash, Portland State University, Portland, OR, United States
Simulating soil carbon pools and fluxes in the boreal forests of Alaska using a new hybrid model of LANDIS-II and DAMM-MCNiPP (531209)
Melissa Sue Lucash, Portland State University, Portland, OR, United States, Jason Vogel, University of Florida, School of Forest Resources and Conservation, Gainesville, FL, United States and Robert Scheller, North Carolina State University, Forestry and Environmental Resources, Raleigh, NC, United States
Fine-scale Observations of Permafrost After Repeat Fires in Interior Alaska (544391)
Kristin Olson, University of Colorado Denver, Department of Environmental Science, Denver, United States, Brian Buma, University of Colorado Denver, Department of Integrative Biology, Denver, CO, United States and Katherine Hayes, University of Colorado Denver, Integrative and Systems Biology, Denver, CO, United States
Soil Respiration in very High Frequency Boreal wildfires as a Function of Species (544789)
Vishnu Kodicherla1, Jason Shabaga2, Jason Vogel2, Katherine Hayes3 and Brian Buma4, (1)Denver, CO, United States, (2)University of Florida, School of Forest Resources and Conservation, Gainesville, FL, United States, (3)University of Colorado Denver, Integrative and Systems Biology, Denver, CO, United States, (4)University of Colorado Denver, Department of Integrative Biology, Denver, CO, United States
Increasing fire frequency and short-interval fires in the boreal forest: precedence and context from Alaskan paleoecological records (Invited) (556300)
Philip E Higuera1, Tyler J Hoecker2, Adam M Young2, Melissa L Chipman3 and Fengsheng Hu4, (1)University of Montana, Missoula, MT, United States, (2)University of Idaho, Moscow, ID, United States, (3)Syracuse University, Syracuse, NY, United States, (4)University of Illinois at Urbana Champaign, Plant Biology, Geology, Urbana, IL, United States
Fire and Ice – the impacts of changing boreal fire regimes and permafrost loss on carbon stocks and stability (Invited) (591384)
Catherine M Dieleman1, Carolyn Gibson2, Evan S Kane3, Brendan M Rogers4 and Merritt R Turetsky2, (1)University of Guelph, Department of Integrative Biology, Guelph, ON, Canada, (2)University of Guelph, Guelph, ON, Canada, (3)Michigan Technological University, School of Forest Resources and Environmental Sciences, Houghton, MI, United States, (4)University of California Irvine, Irvine, CA, United States
Using Dynamic Vegetation Modeling to Explore Boreal Forest Canopy-cover Shifts Under Water Stress and Changing Climate (632688)
Jennifer A. Holm1, William J Riley1, Ryan G Knox2, Gautam Bisht3, Chonggang Xu4, Daniel M Ricciuto5, Khachik Sargsyan6, Bradley Christoffersen7 and Charlie Koven8, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)MIT, Cambridge, MA, United States, (3)Pacific Northwest National Laboratory, Richland, WA, United States, (4)Los Alamos National Laboratory, Los Alamos, NM, United States, (5)Oak Ridge National Laboratory, Environmental Sciences Division and Climate Change Science Institute, Oak Ridge, TN, United States, (6)Sandia National Laboratories, Albuquerque, NM, United States, (7)University of Texas Rio Grande Valley, Edinburg, United States, (8)Earth Sciences Division, Lawrence Berkeley National Laboratory,, Berkeley, CA, United States
