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Don Falk is an Associate Professor with the School of Natural Resources and the Environment at the University of Arizona. Don’s research focuses on fire history, fire ecology, dendroecology, and restoration ecology, including multi-scale studies of fire as an ecological and physical process. Don received a B.A. in Interdisciplinary Studies from Oberlin College, a M.A. in Environmental Policy from Tufts University, and his Ph.D. in Ecology & Evolutionary Biology at the University of Arizona. He holds joint appointments in the Laboratory of Tree-Ring Research and the Institute for Earth and Society at the University of Arizona. Before coming to the University of Arizona, Don served as the first Executive Director of the Society for Ecological Restoration (SER). Prior to SER, Don was co-founder and Executive Director of the Center for Plant Conservation, originally at the Arnold Arboretum of Harvard University and now at the Missouri Botanical Garden. Don is a Fellow of the American Association for the Advancement of Science and has received research support and fellowships from the National Science Foundation, Joint Fire Science Program, US Forest Service, and the Collaborative Forest Restoration Program. In 2003 he was appointed by Governor Janet Napolitano to the Arizona Forest Health Council. Don’s publications include numerous journal articles and three books, including Genetics and Conservation of Rare Plants (Oxford University Press, 1991) Restoring Diversity (Island Press, 1996), and Foundations of Restoration Ecology (Island Press, 2006). Brian Enquist's research focuses on the connection between attributes of the individual (anatomical and physiological) with macroscopic (population, community, and biogeographic) behavior. In particular he is interested in identifying the critical mechanisms operating throughout multiple scales of biological organization. His current work deals with plant macroecology, focusing on the use of allometric scaling as an approach toward drawing mechanistic connections between the individual and larger scale processes.Show Less
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Courses
- FEFire Ecology
- IWFIntroduction to Wildland Fire
Grants
- Ongoing Effects of Wildfire on Post-Fire Hydrologic and Ecological Processes in the Santa Catalina Mountains
Co-Investigator (COI)
2023
$78.0K
Active - Desert Southwest CESU: Impacts Of Wildfire On The Ecologic, Hydrologic And Geomorphic Resiliency Of Forest Soils In The Southwestern US
Co-Investigator (COI)
2021
$227.9K
Active - Desert Southwest CESU: Impacts Of Wildfire On The Ecologic, Hydrologic And Geomorphic Resiliency Of Forest Soils In The Southwestern US
Co-Investigator (COI)
2021
$137.6K
Active - Improving Near-Real-Time Detection and Mapping of Photosynthetically Active Buffelgrass to Support Invasive Species Control
Co-Investigator (COI)
2021
$76.5K
Active - Moving from Mortality to Recovery in Western Forests and Woodlands
Co-Investigator (COI)
2020
$100.0K
Active - Coronado - U of A Forest Plan Monitoring Challenge Cost Share
Principal Investigator (PI)
2020
$58.0K
Active - FireScape Support
Principal Investigator (PI)
2018
$19.5K
Active - Analysis of Multi-Temporal Climate and Land Use/Land Cover Data in the Southwest United States
Co-Investigator (COI)
2021
$40.0K
- Vegetation Interactions with Post-Fire Hydrologic Processes in the Santa Catalina Mountains
Principal Investigator (PI)
2020
$42.7K
- Understanding Mechanisms of Fire-caused Vegetation Type Conversion in Southwestern Conifer Forests Under Current and Future Climate
Principal Investigator (PI)
2019
$45.0K
Books
- Fire Ecology and Management in Lowland Riparian Ecosystems of the Southwestern United States and Northern Mexico
2019
- User guide to the FireCLIME Vulnerability Assessment (VA) tool: A rapid and flexible system for assessing ecosystem vulnerability to climate-fire interactions.
2019
- Foundations of Restoration Ecology, 2d Edition
2016
- Fire History Analysis and Exploration System - FHAES v2.0.1
2016
- Mapping vegetation structure in the Pinaleño Mountains using LiDAR – Phase 3: forest inventory modeling.
2012
News
- Climate Adaptation at the Department of Defense and Beyond
2021
- Without the North American Monsoon, Reining in Wildfires Gets Harder
2020
- Wildfire Problem Will Get Bigger in Coming Decades
2018
- An Insider's Perspective on the Science Behind Wildfires
2017
- Four Questions: How Ecologists Transform Research Into Change
2017
- UA Expert Warns of Challenges Posed by Wildland Fires
2017
- 'Fires of Change' Exhibit Brings Illumination
2015
- UA Delegation to Attend Climate Conference
2015
- Managing Fires in Arizona's Sky Islands
2013
- DOD Funds UA Climate Change, Environment Projects
2012
- Scientists, Public Team Up to Discover Biodiversity
2011
- Doctoral Students Using Advanced Technology to Study Forests
2009
- Research Shows Link Between Huge Wildfires and Natural Fire Supression
2002
Publications (128)
Recent
- Vegetation type conversion in the US Southwest: frontline observations and management responses
2022
- The North American tree-ring fire-scar network
2022
- Mechanisms of forest resilience
2022
- Tamm Review: Mechanisms of Forest Resilience
2022
- Valleys of fire: Landscape reconstruction of historical fire regimes of forest-grassland ecotones and grasslands in the Valles Caldera National Preserve, New Mexico, USA.
2021
- Birds select diverse fire mosaics during migration
2021
- Widespread fire years in the US--Mexico Sky Islands are contingent on both winter and monsoon precipitation
2021
- On the use of standardized multi-temporal indices for monitoring disturbance and ecosystem moisture stress across multiple earth observation systems in the google earth engine
2021
- Dendrochronology and isotope chronology of Juglans neotropica and its response to El Niño events in tropical highlands of Piura, northern Peru
2021
- A new mission: Mainstreaming climate adaptation in the US Department of Defense
2021
- Thick-billed Parrot (Rhynchopsitta pachyrhyncha: Psittacidae) old-growth forest habitat associated with frequent fires in northwestern México
2021
- Is the Pentagon ready for climate change?
2021
- Valleys of fire: historical fire regimes of forest-grassland ecotones across the montane landscape of the Valles Caldera National Preserve, New Mexico, USA
2021
- The intervention continuum in restoration ecology: rethinking the active–passive dichotomy
2021
- Assessing the generality of Metabolic Scaling Theory in differing forest disturbance regimes.
2021
- Evidence for Widespread Changes in the Structure, Composition, and Fire Regimes of Western North American Forests
2020
- Intermediate- and long-term growth predicts post-fire tree mortality for common conifers in western U.S. parks
2020
- Demographic trends in community functional tolerance reflect tree responses to climate and altered fire regimes
2020
- Wildfire-driven forest conversion in western North American landscapes
2020
- A multi-century Sierra Nevada snowpack reconstruction modeled using upper-elevation coniferous tree rings (California, USA)
2020
- The influence of pre-fire growth patterns on post-fire tree mortality for common conifers in western US parks
2020
- Recent synchronized tree growth response to climate across a large semiarid forest in the southwestern US
2020
- Reconstructing snowpack using Sierra Nevada conifer tree rings in the midst of changing climate.
2020
- Projected climate-fire interactions drive forest to shrubland transition on an Arizona Sky Island.
2020
- Protected landscapes in a world of rapid climate change: Identifying research needs to support resource management and policy development
2020
- Disturbance macroecology: a comparative study of community structure metrics in a high-severity disturbance regime
2020
- Widespread fire years in the US–Mexico Sky Islands are contingent on both winter and monsoon precipitation
2020
- Scaling Ecological Resilience
2019
- Nitrogen rather than water limits overstory tree growth following extreme stand density increase in a ponderosa pine forest
2019
- A framework for exploring aquatic and riparian connectivity: Case study of the Chiricahua leopard frog in the Cienega Creek basin
2019
- Fire, climate and changing forests
2019
- A multi-century history of fire regimes along a transect of mixed-conifer forests in central Oregon, USA
2019
- Scaling and Complexity in Landscape Ecology
2019
- NITROGEN CAN LIMIT OVERSTORY TREE GROWTH FOLLOWING EXTREME STAND DENSITY INCREASE IN A PONDEROSA PINE FOREST
2019
- MODELING FIRE PATHWAYS IN MONTANE GRASSLAND-FOREST ECOTONES
2018
- Advancing dendrochronological studies of fire in the United States
2018
- Long-term persistence and fire resilience of oak shrubfields in dry conifer forests of northern New Mexico
2018
- Disturbance macroecology: integrating disturbance ecology and macroecology with different-age post-fire stands of a closed-cone pine forest
2018
- Climate change, forests, and fire in the southwestern US and northern Mexico
2018
- The SER Standards: a globally relevant and inclusive tool for improving restoration practicea reply to Higgs et al.
2018
- Disturbance macroecology: integrating disturbance ecology and macroecology in different-age post-fire stands of a closed-cone pine forest as a case study
2018
- Pre-fire drought and competition mediate post-fire conifer mortality in western US National Parks
2018
- Use of landscape simulation modeling to quantify resilience for ecological applications
2018
- Fusing tree-ring and forest inventory data to infer influences on tree growth
2017
- Fire severity and regeneration strategy influence shrub patch size and structure following disturbance
2017
- RESTORATION ECOLOGY, RESILIENCE, AND THE AXES OF CHANGE
2017
- Differential response of native Arizona gray squirrels and introduced Abert's squirrels to a mosaic of burn severities
2017
- Differential Response of Native Arizona Gray Squirrels and Introduced Abert's Squirrels to a Mosaic of Burn Severities in the Santa Catalina Mountains
2017
- Assessing the Climate Change Vulnerability of Ecosystem Types of the Southwestern U.S.
2017
- Disturbance and productivity interactions mediate stability of forest composition and structure
2017
- Direct and indirect climate controls predict heterogeneous early-mid 21st century wildfire burned area across western and boreal North America
2017
- Heterogeneous responses of wildfire annual area burned to climate change across western and boreal North America.
2017
- Long-term persistence and frequent fire suggest future increased landscape dominance of shrubfields in northern New Mexico
2017
- Climate drives fire synchrony but local factors control fire regime change in northern Mexico
2017
- A coupled modelling approach to assess the effect of fuel treatments on post-wildfire runoff and erosion
2016
- The resilience dilemma: Incorporating global change into ecosystem policy and management
2016
- Multi-scale Perspectives of Fire, Climate and Humans in Western North America and the Jemez Mountains, U.S.A.
2016
- Average Stand Age from Forest Inventory Plots Does Not Describe Historical Fire Regimes in Ponderosa Pine and Mixed-Conifer Forests of Western North America
2016
- Macroanatomy and compartmentalization of recent fire scars in three North American conifers
2016
- Multiscale perspectives of fire, climate and humans in western North America and the Jemez Mountains, USA
2016
- Low-cost high-resolution global pyrogenic thermal sensing: Critical information for biosphere-atmosphere interactions
2016
- Representing Climate, Disturbance, and Vegetation Interactions in Landscape Simulation Models.
2015
- Fact Sheet: Carbon Cycling in Southwestern Forests: Reservoirs, Fluxes, and the Effects of Fire and Management
2015
- Discriminating disturbance from natural variation with LiDAR in semi-arid forests, Southwestern USA
2015
- Carbon Cycling in Southwestern Forests: Reservoirs, Fluxes, and the Effects of Fire and Management. Ecological Restoration Institute and Southwest Fire Science Consortium, Northern Arizona University, Flagstaff, AZ
2015
- Population Structure Integral to Seed Collection Guidelines: A Response to Hoban and Schlarbaum (2014)
2015
- A coupled modeling approach to assess the impact of fuel treatments on post-wildfire runoff and erosion.
2015
- Representing climate, disturbance, and vegetation interactions in landscape models
2015
- Post-fire forest dynamics and climate variability affect spatial and temporal properties of spruce beetle outbreaks on a Sky Island mountain range
2015
- A coupled modeling approach to assess the impact of fuel treatments on post-wildfire runoff and erosion'
2014
- Changes in tracheid and ray traits in fire scars of North American conifers and their ecophysiological implications
2014
- Discriminating Natural Variation from Legacies of Disturbance in Semi-Arid Forests, Southwestern USA
2014
- Application of Metabolic Scaling Theory to reduce error in local maxima tree segmentation from aerial LiDAR
2014
- Mixed-severity fire in lodgepole pine dominated forests: are historical regimes sustainable on Oregon's Pumice Plateau, USA?
2014
- Fire severity, size, and climate associations diverge from historical precedent along an ecological gradient in the Pinaleno Mountains, Arizona, USA
2014
- Estimating individual tree mid- and understory rank-size distributions from airborne laser scanning in semi-arid forests.
2014
- The changing role of history in restoration ecology
2014
- Resin duct size and density as ecophysiological traits in fire scars of Pseudotsuga menziesii and Larix occidentalis
2014
- Lodgepole pine-dominated forest in central Oregon's Pumice Plateau: Historical mixed-severity fires are resistant to future climate change.
2014
- Fine-scale factors influence fire regimes in mixed-conifer forests on three high mountains in Mexico
2014
- The Landscape Ecology of Fire. Ecological Studies: Analysis and Synthesis, Volume 213. Edited by Donald McKenzie, Carol Miller, and Donald A. Falk. Dordrecht and New York: Springer. $179.00. xx + 312 p.; ill.; index. ISBN: 978-94-007-0300-1 (hc); 978-94-007-0301-8 (eb). 2011.
2013
- FireScape: A Program for Whole-Mountain Fire Management in the Sky Island Region.
2013
- Fire: Lessons of the Past
2013
- Mapping Ecological Systems from the Ground Up in Southeastern Arizona.
2013
- A comparison of targeted and systematic fire-scar sampling for estimating historical fire frequency in south-western ponderosa pine forests
2013
- Unsupported inferences of high-severity fire in historical dry forests of the western United States: Response to Williams and Baker
2013
- Are Madrean ecosystems approaching tipping points? Anticipating interactions of landscape disturbance and climate change.
2013
- Testing a pyroclimatic hypothesis on the Mexico-U.S. border
2012
- Linking old-growth forest composition, structure, fire history, climate and land-use in the mountains of northern Mexico
2012
- Testing a pyroclimatic hypothesis on the Mexico-United States border
2012
- Mapping Ecological Systems in Southeastern Arizona
2012
- Linking old-growth forest composition and structure to fire history, climate and land-use in a mountain range of northwestern Mexico
2012
- Human Pyrogeography
2011
- Multi-scale controls of historical forest-fire regimes: new insights from fire-scar networks
2011
- Multiscale controls of historical fire regimes: New insights from fire-scar networks
2011
- Fire and climate variation in western North America from fire scar networks.
2010
- Estimating soil turnover rate from tree uprooting during hurricanes in Puerto Rico
2010
- Spatial and temporal corroboration of a fire-scar-based fire history in a frequently burned ponderosa pine forest
2010
- El Niño-Southern Oscillation effect on a fire regime in northeastern Mexico has changed over time
2010
- Can Buffelgrass invasions be controlled in the American Southwest? Using invasion ecology theory to understand Buffelgrass success and develop comprehensive restoration and management
2009
- Cross-scale analysis of fire regimes
2007
- Upstart views of restoration icons.
2007
- Foundations of Restoration Ecology ‐ Edited by Donald A. Falk, Margaret A. Palmer, and Joy B. Zedler
2007
- Process-centred restoration in a fire-adapted ponderosa pine forest
2006
- A landscape perspective for forest restoration
2005
- Ex situ methods: A vital but underused set of conservation resources: Supporting Species Survival in the Wild
2004
- Scaling rules and probability models for surface fire regimes in ponderosa pine forests
2003
- ECOLOGICAL RESTORATION OF SOUTHWESTERN PONDEROSA PINE ECOSYSTEMS: A BROAD PERSPECTIVE
2002
- An introduction to restoration genetics
2001
- PLANT DIVERSITY IN MANAGED FORESTS: UNDERSTORY RESPONSES TO THINNING AND FERTILIZATION
1999
- Developing the conceptual basis for restoration ecology
1997
- Restoring diversity: strategies for reintroduction of endangered plants.
1997
- Supporting Research in Restoration Biology: NSF Workshop Offers Recommendations
1996
- Genetics and Conservation of Rare Plants: A Review
1993
- SCIENTIFIC AND POLICY CONSIDERATIONS IN RESTORATION AND REINTRODUCTION OF ENDANGERED SPECIES
1992
- Genetic and evolutionary consequences of small population size in plants : implications for conservation
1991
- Conserving the native diversity of the U.S.
1990
- THE THEORY OF INTEGRATED CONSERVATION STRATEGIES FOR BIOLOGICAL DIVERSITY
1990
- Integrated Strategies for Conserving Plant Genetic Diversity
1990
- Discovering the Future, Creating the Past: Some Reflections on Restoration
1990
- Endangered forest resources in the U.S.: Integrated strategies for conservation of rare species and genetic diversity
1990
- The Center for Plant Conservation: Collaborating with the National Plant Germplasm System to Save Seeds for the Future
1989
- Saving the Rarest
1986
- Saving the Pieces
1984