Seth Munson is an ecologist with the Southwest Biological Science Center in Flagstaff, Arizona. His research focuses on plant-soil interactions in dryland ecosystems and how these interactions are affected by climate and land use changes.
Much of Seth's research aims to understand the dynamics of dryland ecosystems at long temporal and broad spatial scales, and employs a multidisciplinary approach. His work seeks to improve the management of arid and semi-arid lands, including determining effective ecological restoration strategies, and is done in close collaboration with several land management agencies.
Check the Science Tab for a List of Current Research Projects.
Research Interests:
Plant Ecology, Ecosystem Ecology, Dryland Ecology, Restoration Ecology, Soil Erosion
Current Positions:
Research Ecologist, US Geological Survey, Southwest Biological Science Center, Flagstaff, AZ
Adjunct Faculty, Northern Arizona University, Department of Biological Sciences, Flagstaff, AZ
Adjunct Faculty, Arizona State University, School of Life Sciences, Phoenix, AZ
Past Positions:
Jan 2011 - Dec 2013; Research Ecologist (Mendenhall Fellow), US Geological Survey, Geology and Environmental Change Science Center, Denver, CO
Dec 2008 - Jan 2011; Ecologist, US Geological Survey, Canyonlands Research Station, Moab, Utah
May 2004 - Nov 2008; Research Assistant, Colorado State University, Forest and Rangeland Stewardship, Fort Collins, CO
Sep 2002 – May 2004; Research Associate, University of New Mexico, Biology Department, Albuquerque, NM
Education and Certifications
Ph.D. Ecology, Colorado State University, Fort Collins, CO, May 2009
B.A. Biology, Earlham College, Richmond, IN, May 2001
Science and Products
Filter Total Items: 16
Filter Total Items: 86
Landscape pivot points and responses to water balance in national parks of the southwest US
A recent drying trend that is expected to continue in the southwestern US underscores the need for site‐specific and near real‐time understanding of vegetation vulnerability so that land management actions can be implemented at the right time and place.We related the annual integrated normalized difference vegetation index (iNDVI), a proxy for vegetation production, to water balance across landsca
Anticipatory natural resource science and management for a changing future
Prolonged shifts in long‐term average climate conditions and increasing variability in short‐term weather conditions affect ecological processes, and represent a fundamental challenge for natural resource management. Recent and forthcoming advances in climate predictability may offer novel opportunities, but capitalizing on these opportunities will require focusing scientific research on understan
Ecosystem thresholds, tipping points, and critical transitions
Abrupt shifts in ecosystems are cause for concern and will likelyintensify under global change (Scheffer et al., 2001). The terms‘thresho lds’, ‘tipping points’, and ‘critical transitions’ have beenused interchangeably to refer to sudden changes in the integrityor state of an ecosystem caused by environmental drivers(Holling, 1973; May, 1977). Threshold-based concepts havesignific antly aided our c
Functional group, biomass, and climate change effects on ecological drought in semiarid grasslands
Water relations in plant communities are influenced both by contrasting functional groups (grasses, shrubs) and by climate change via complex effects on interception, uptake and transpiration. We modelled the effects of functional group replacement and biomass increase, both of which can be outcomes of invasion and vegetation management, and climate change on ecological drought (soil water potenti
Future soil moisture and temperature extremes imply expanding suitability for rainfed agriculture in temperate drylands
The distribution of rainfed agriculture is expected to respond to climate change and human population growth. However, conditions that support rainfed agriculture are driven by interactions among climate, including climate extremes, and soil moisture availability that have not been well defined. In the temperate regions that support much of the world’s agriculture, these interactions are complic
Long-term trends in restoration and associated land treatments in the southwestern United States
Restoration treatments, such as revegetation with seeding or invasive species removal, have been applied on U.S. public lands for decades. Temporal trends in these management actions have not been extensively summarized previously, particularly in the southwestern United States where invasive plant species, drought, and fire have altered dryland ecosystems. We assessed long-term (1940–2010) trends
Climate change-induced vegetation shifts lead to more ecological droughts despite projected rainfall increases in many global temperate drylands
Drylands occur world-wide and are particularly vulnerable to climate change since dryland ecosystems depend directly on soil water availability that may become increasingly limited as temperatures rise. Climate change will both directly impact soil water availability, and also change plant biomass, with resulting indirect feedbacks on soil moisture. Thus, the net impact of direct and indirect clim
Climate legacy and lag effects on dryland plant communities in the southwestern U.S.
Climate change effects on vegetation will likely be strong in the southwestern U.S., which is projected to experience large increases in temperature and changes in precipitation. Plant communities in the southwestern U.S. may be particularly vulnerable to climate change as the productivity of many plant species is strongly water-limited. This study examines the relationship between climate and veg
Aridity increases below-ground niche breadth in grass communities
Aridity is an important environmental filter in the assembly of plant communities worldwide. The extent to which root traits mediate responses to aridity, and how they are coordinated with leaf traits, remains unclear. Here, we measured variation in root tissue density (RTD), specific root length (SRL), specific leaf area (SLA), and seed size within and among thirty perennial grass communities dis
Climate change reduces extent of temperate drylands and intensifies drought in deep soils
Drylands cover 40% of the global terrestrial surface and provide important ecosystem services. While drylands as a whole are expected to increase in extent and aridity in coming decades, temperature and precipitation forecasts vary by latitude and geographic region suggesting different trajectories for tropical, subtropical, and temperate drylands. Uncertainty in the future of tropical and subtrop
Decadal shifts in grass and woody plant cover are driven by prolonged drying and modified by topo‐edaphic properties
Woody plant encroachment and overall declines in perennial vegetation in dryland regions can alter ecosystem properties and indicate land degradation, but the causes of these shifts remain controversial. Determining how changes in the abundance and distribution of grass and woody plants are influenced by conditions that regulate water availability at a regional scale provides a baseline to compare
Concentrations of mineral aerosol from desert to plains across the central Rocky Mountains, western United States
Mineral dusts can have profound effects on climate, clouds, ecosystem processes, and human health. Because regional dust emission and deposition in western North America are not well understood, measurements of total suspended particulate (TSP) from 2011 to 2013 were made along a 500-km transect of five remote sites in Utah and Colorado, USA. The TSP concentrations in μg m−3 adjusted to a 24-h per
Non-USGS Publications**
Bontti, E.E., J.P. DeCant, S.M. Munson, M.A. Gathany, A. Przeszlowska, M.L. Haddix, S. Owens, I.C. Burke, W.J. Parton, and M.E. Harmon. 2009. Litter decomposition in grasslands of Central North America (US Great Plains). Global Change Biology 15: 1356–1363.
Munson, S.M. and W.K. Lauenroth. 2009. Plant population and community responses to removal of the dominant species in the shortgrass steppe. Journal of Vegetation Science 20: 224–232.
Munson, S.M. and W.K. Lauenroth. 2012. Plant community recovery following restoration in semiarid grasslands. Restoration Ecology 20: 656–663.
Munson, S.M., W.K. Lauenroth, and I.C. Burke. 2012. Soil carbon and nitrogen recovery on semiarid Conservation Reserve Program lands. Journal of Arid Environments 79: 25–31
Munson, S.M. 2013. Plant responses, climate pivot points, and tradeoffs in water-limited ecosystems. Ecosphere 4: 109.
Li, J., G.S. Okin, J.E. Herrick, J. Belnap, S.M. Munson, and M.E. Miller. 2010. A simple method to estimate threshold friction velocity of wind erosion in the field. Geophysical Research Letters 37: L10402.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
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Landscape pivot points and responses to water balance in national parks of the southwest US
A recent drying trend that is expected to continue in the southwestern US underscores the need for site‐specific and near real‐time understanding of vegetation vulnerability so that land management actions can be implemented at the right time and place.We related the annual integrated normalized difference vegetation index (iNDVI), a proxy for vegetation production, to water balance across landscaAnticipatory natural resource science and management for a changing future
Prolonged shifts in long‐term average climate conditions and increasing variability in short‐term weather conditions affect ecological processes, and represent a fundamental challenge for natural resource management. Recent and forthcoming advances in climate predictability may offer novel opportunities, but capitalizing on these opportunities will require focusing scientific research on understanEcosystem thresholds, tipping points, and critical transitions
Abrupt shifts in ecosystems are cause for concern and will likelyintensify under global change (Scheffer et al., 2001). The terms‘thresho lds’, ‘tipping points’, and ‘critical transitions’ have beenused interchangeably to refer to sudden changes in the integrityor state of an ecosystem caused by environmental drivers(Holling, 1973; May, 1977). Threshold-based concepts havesignific antly aided our cFunctional group, biomass, and climate change effects on ecological drought in semiarid grasslands
Water relations in plant communities are influenced both by contrasting functional groups (grasses, shrubs) and by climate change via complex effects on interception, uptake and transpiration. We modelled the effects of functional group replacement and biomass increase, both of which can be outcomes of invasion and vegetation management, and climate change on ecological drought (soil water potentiFuture soil moisture and temperature extremes imply expanding suitability for rainfed agriculture in temperate drylands
The distribution of rainfed agriculture is expected to respond to climate change and human population growth. However, conditions that support rainfed agriculture are driven by interactions among climate, including climate extremes, and soil moisture availability that have not been well defined. In the temperate regions that support much of the world’s agriculture, these interactions are complicLong-term trends in restoration and associated land treatments in the southwestern United States
Restoration treatments, such as revegetation with seeding or invasive species removal, have been applied on U.S. public lands for decades. Temporal trends in these management actions have not been extensively summarized previously, particularly in the southwestern United States where invasive plant species, drought, and fire have altered dryland ecosystems. We assessed long-term (1940–2010) trendsClimate change-induced vegetation shifts lead to more ecological droughts despite projected rainfall increases in many global temperate drylands
Drylands occur world-wide and are particularly vulnerable to climate change since dryland ecosystems depend directly on soil water availability that may become increasingly limited as temperatures rise. Climate change will both directly impact soil water availability, and also change plant biomass, with resulting indirect feedbacks on soil moisture. Thus, the net impact of direct and indirect climClimate legacy and lag effects on dryland plant communities in the southwestern U.S.
Climate change effects on vegetation will likely be strong in the southwestern U.S., which is projected to experience large increases in temperature and changes in precipitation. Plant communities in the southwestern U.S. may be particularly vulnerable to climate change as the productivity of many plant species is strongly water-limited. This study examines the relationship between climate and vegAridity increases below-ground niche breadth in grass communities
Aridity is an important environmental filter in the assembly of plant communities worldwide. The extent to which root traits mediate responses to aridity, and how they are coordinated with leaf traits, remains unclear. Here, we measured variation in root tissue density (RTD), specific root length (SRL), specific leaf area (SLA), and seed size within and among thirty perennial grass communities disClimate change reduces extent of temperate drylands and intensifies drought in deep soils
Drylands cover 40% of the global terrestrial surface and provide important ecosystem services. While drylands as a whole are expected to increase in extent and aridity in coming decades, temperature and precipitation forecasts vary by latitude and geographic region suggesting different trajectories for tropical, subtropical, and temperate drylands. Uncertainty in the future of tropical and subtropDecadal shifts in grass and woody plant cover are driven by prolonged drying and modified by topo‐edaphic properties
Woody plant encroachment and overall declines in perennial vegetation in dryland regions can alter ecosystem properties and indicate land degradation, but the causes of these shifts remain controversial. Determining how changes in the abundance and distribution of grass and woody plants are influenced by conditions that regulate water availability at a regional scale provides a baseline to compareConcentrations of mineral aerosol from desert to plains across the central Rocky Mountains, western United States
Mineral dusts can have profound effects on climate, clouds, ecosystem processes, and human health. Because regional dust emission and deposition in western North America are not well understood, measurements of total suspended particulate (TSP) from 2011 to 2013 were made along a 500-km transect of five remote sites in Utah and Colorado, USA. The TSP concentrations in μg m−3 adjusted to a 24-h perNon-USGS Publications**
Bontti, E.E., J.P. DeCant, S.M. Munson, M.A. Gathany, A. Przeszlowska, M.L. Haddix, S. Owens, I.C. Burke, W.J. Parton, and M.E. Harmon. 2009. Litter decomposition in grasslands of Central North America (US Great Plains). Global Change Biology 15: 1356–1363.Munson, S.M. and W.K. Lauenroth. 2009. Plant population and community responses to removal of the dominant species in the shortgrass steppe. Journal of Vegetation Science 20: 224–232.Munson, S.M. and W.K. Lauenroth. 2012. Plant community recovery following restoration in semiarid grasslands. Restoration Ecology 20: 656–663.Munson, S.M., W.K. Lauenroth, and I.C. Burke. 2012. Soil carbon and nitrogen recovery on semiarid Conservation Reserve Program lands. Journal of Arid Environments 79: 25–31Munson, S.M. 2013. Plant responses, climate pivot points, and tradeoffs in water-limited ecosystems. Ecosphere 4: 109.Li, J., G.S. Okin, J.E. Herrick, J. Belnap, S.M. Munson, and M.E. Miller. 2010. A simple method to estimate threshold friction velocity of wind erosion in the field. Geophysical Research Letters 37: L10402.**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
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