B13F:
Terrestrial Ecosystems in a Time of Change: Thresholds, Tipping Points, and Critical Transitions II Posters

Submit an Abstract to this Session



Session ID#: 26055

Session Description:
Myriad systems maintain thresholds, tipping points, and critical transitions that help explain how they respond to changes in their environment. Terrestrial ecosystems in particular show responses to global change that can be both dramatic and difficult to predict due to strong heterogeneity across temporal and spatial scales. Threshold-based concepts have significantly aided our predictive capacity regarding the controls over terrestrial ecosystem structure and function, yet our understanding of how biotic and abiotic drivers interact to regulate systems’ responses – as well as ways to forecast the impending responses – remain limited. Here we synthesize a contemporary understanding of terrestrial ecosystem responses to change using a framework of thresholds, tipping points, and critical transitions. Enhanced knowledge of the patterns and mechanisms that precede and dictate terrestrial responses is of the utmost importance, and the systems approaches explored here offer a powerful way forward to considering and anticipating change.
Primary Convener:  Sasha Reed, U.S. Geological Survey, Southwest Biological Science Center Moab, Moab, United States
Conveners:  Josep Penuelas, Centre for Ecological Research and Forestry Applications, Cerdanyola, Barcelona, Spain, Nathan G G McDowell, Los Alamos National Laboratory, Los Alamos, NM, United States and Osvaldo Sala, Arizona State University, School of Life Sciences, Tempe, AZ, United States
Chairs:  Osvaldo Sala, Arizona State University, School of Life Sciences, Tempe, AZ, United States and Sasha Reed, USGS, Moab, UT, United States
OSPA Liaison:  Sasha Reed, USGS, Moab, UT, United States
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0429 Climate dynamics [BIOGEOSCIENCES]
0438 Diel, seasonal, and annual cycles [BIOGEOSCIENCES]
0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]

Abstracts Submitted to this Session:

Higher Temperature Variability Reduces Temperature Sensitivity of Vegetation Growth in Northern Hemisphere (206948)
Xiuchen WU1, Hongyan Liu2, Xiaoyan Li3, Shilong Piao4, Philippe Ciais5, Weichao Guo6, Yi Yin5, Benjamin Poulter7, Changhui Peng8, Nicolas Viovy5, Nicolas Vuichard9, Pei Wang3 and Yongmei Huang1, (1)Beijing Normal University, Beijing, China, (2)College of Urban and Environmental Sciences and MOE Laboratory for Earth Surface, Peking University, Beijing, China, (3)Beijing Normal University, Faculty of Geographical Science, Beijing, China, (4)Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China, (5)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette, France, (6)University of California Merced, Merced, CA, United States, (7)NASA GSFC, Biospheric Sciences, Greenbelt, United States, (8)Hunan Normal University, Changsha, China, (9)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France
Detecting early warning signals of tree mortality using multi-scale satellite data: a case study in boreal North Americ (246439)
Brendan M Rogers, Woods Hole Research Center, Falmouth, United States, Edward Huntingdon Hogg, Natural Resources Canada - Canadian Forest Service, Edmonton, AB, Canada, Kylen Solvik, University of Colorado at Boulder, Boulder, CO, United States, Junchang Ju, University of Maryland, Earth System Science Interdisciplinary Center, College Park, MD, United States, Jeffrey G Masek, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Michael Michaelian, Canadian Forest Service, Edmonton, AB, Canada, Logan T Berner, Northern Arizona University, SICCS, Flagstaff, United States and Scott J Goetz, Northern Arizona University, SICCS, Flagstaff, AZ, United States
Detection of early warning signals of forest mortality in California (224048)
Yanlan Liu, University of California, Department of Geography, Los Angeles, United States, Mukesh Kumar, Duke University, Nicholas School of the Environment, Durham, NC, United States, Gabriel George Katul, Duke University, Department of Civil and Environmental Engineering, Durham, United States and Amilcare M Porporato, Duke University, Civil and Environmental Engineering, Durham, NC, United States
A perfect storm: multiple stressors interact to drive postfire regeneration failure of lodgepole pine and Douglas-fir forests in Yellowstone (242121)
Winslow Deming Hansen1, Kristin H. Braziunas2, Werner Rammer3, Rupert Seidl3 and Monica Turner4, (1)University of Wisconsin Madison, Madison, WI, United States, (2)University of Wisconsin Madison, Integrative Biology, Madison, WI, United States, (3)BOKU University of Natural Resources and Life Sciences, Vienna, Austria, (4)University of Wisconsin Madison, Department of Integrative Biology, Madison, WI, United States
Examining the Relationship Between Edaphic Variables and the Rooting System of Abies concolor in the southern Sierra Nevada (268270)
Alexis Wilson, Cornell University, Ithaca, NY, United States, Robert B Jackson, Stanford University, Department of Earth System Science, Stanford, CA, United States and Shersingh Joseph Tumber-Dávila, University of New Hampshire Main Campus, Durham, United States
Microbial C:P stoichiometry is shaped by redox conditions along an elevation gradient in humid tropical rainforests (279422)
Yang Lin1, Avner Gross1 and Whendee L Silver2, (1)University of California Berkeley, Berkeley, CA, United States, (2)University of California Berkeley, Department of Environmental Science, Policy, and Management, Berkeley, CA, United States
Soil microbes shift C-degrading activity along an ambient and experimental nitrogen gradient (280923)
Jessica Moore, Oak Ridge National Laboratory, Oak Ridge, TN, United States and Serita D Frey, University of New Hampshire, Natural Resources and the Environment, Durham, United States
Climate-Induced Thresholds In Lake-Watershed Systems: Understanding The Compounding Effects Of Early Ice-Out And Episodic Nutrient Loadings (277891)
Mussie Beyene, University of Maine, Orono, ME, United States and Shaleen Jain, University of Maine, Civil and Environmental Engineering, Orono, ME, United States

See more of: Biogeosciences