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Sasha C Reed, Ph.D.

Dr. Sasha Reed is an ecologist focused on understanding how our planet's ecosystems work and what factors determine the services they provide. The study sites and methods Sasha uses are diverse, and with each of her projects she strives to provide scientific information that helps our nation address challenges, solve problems, and maximize opportunities.

Sasha seeks to provide useful information for land managers, policy-makers, and the general public. Sasha uses both basic and applied scientific approaches to improve our understanding of the fundamental controls over ecosystems, to determine how these systems respond to change, and to explore solutions for addressing relevant problems. Sasha works closely with a range of collaborators - including federal agency partners (BLM, NPS, DOE, DoD, BIA, USFS, USFWS) - in designing research studies, conducting information and technology transfer, and performing outreach activities. Some of her primary research interests include understanding how drought and increasing temperatures affect ecosystems, exploring a diversity of energy options for meeting national demand, assessing the consequences of exotic plant invasion and ways to combat them, and establishing novel management options for increased effectiveness and efficiency in restoration and reclamation. Sasha attempts to conduct research that is innovative, collaborative, and useful.

Professional Experience

  • Research Ecologist, USGS, Southwest Biological Science Center, Moab, UT: May 2008 - present

  • Research Ecologist, USGS-SCEP Program, Moab, UT: 2005 - 2007 summers only

  • Fellow, NSF Graduate Research Fellowship: Awarded April 2003; deferred until September 2005-May 2008

  • Fellow, National Science Foundation IGERT Fellowship, Carbon Climate and Society Initiative (CCSI): August 2003-August 2005.

Education and Certifications

  • Ph.D. in Biogeochemistry, 2002-2008: University of Colorado at Boulder, Department of Ecology & Evolutionary Biology and Institute of Arctic & Alpine Research (INSTAAR). 

  • B.A. in Organic Chemistry, 1993-1997: Colgate University, Department of Chemistry, Hamilton, NY. Graduated magna cum laude.

Honors and Awards

  • Joanne Simpson Medal, American Geophysical Union (AGU). September 2024.

  • Fellow, American Geophysical Union (AGU). August 2024.

  • Fellow, Ecological Society of America (ESA). April 2024.

  • Elected Member-At-Large, Ecological Society of America (ESA). August 2020-August 2022.

  • Ecological Society of America (ESA) Early Career Fellow. March 2016.

  • Presidential Early Career Award for Scientists and Engineers (PECASE). October 2011.

  • Star Award, Department of the Interior. October 2010, May 2000.

  • Graduate Student Research and Creative Works Award, University of Colorado at Boulder. May 2008.

  • USGS Student Career Experience Program (SCEP) Fellowship. June-August of 2006 & 2007.

  • Student Policy Award, Ecological Society of America (ESA). September 2006.

  • AAAS Program for Excellence in Science. August 2006.

  • Lawrence Award. April 1996.

  • Phi Ea Sigma University Honor Society Awarded Membership. April 1994-May 1997.

  • Phi Eta Sigma Aid Committee Selected Board Member. September 1995-May 1997.

  • Barry Goldwater Award Nominee. November 1994.

Science and Products

Filter Total Items: 19
Drill rig in the distance off a dirt road in a semi-aid system

Supporting energy and mineral development through successful reclamation

Federal lands of the US contain important reserves of oil, gas and other resources important for Unleashing American Energy (SO 3418). After development of these resources is complete, successfully reclaiming disturbed lands is a necessary step towards restoring wildlife habitat, forage production, and maintaining natural resources for future use. To improve reclamation outcomes on these lands and...
By
Ecosystems Mission Area, Land Management Research Program, Species Management Research Program, Fort Collins Science Center, Southwest Biological Science Center, Western Geographic Science Center
Supporting energy and mineral development through successful reclamation

Supporting energy and mineral development through successful reclamation

Federal lands of the US contain important reserves of oil, gas and other resources important for Unleashing American Energy (SO 3418). After development of these resources is complete, successfully reclaiming disturbed lands is a necessary step towards restoring wildlife habitat, forage production, and maintaining natural resources for future use. To improve reclamation outcomes on these lands and...
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Biocrusts with lichen

Biological Soil Crust ("Biocrust") Science

Biological soil crusts (biocrusts) are commonly found on the soil surface in arid and semi-arid ecosystems (collectively called drylands). Biocrusts can consist of mosses, cyanobacteria, lichens, algae, and microfungi, and they strongly interact with the soil. These organisms or consortium of disparate organisms, depending on the specific biocrust, are important to the functioning of ecosystems...
By
Ecosystems Mission Area, Land Management Research Program, Southwest Biological Science Center
Biological Soil Crust ("Biocrust") Science

Biological Soil Crust ("Biocrust") Science

Biological soil crusts (biocrusts) are commonly found on the soil surface in arid and semi-arid ecosystems (collectively called drylands). Biocrusts can consist of mosses, cyanobacteria, lichens, algae, and microfungi, and they strongly interact with the soil. These organisms or consortium of disparate organisms, depending on the specific biocrust, are important to the functioning of ecosystems...
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field of wildflowers in the foreground, with brown mountains and blue sky in the background

Skill-building workshops for researchers on the coproduction of actionable science

Public lands management requires the use of science, but agency staff rarely have time to stay current with all the science on management-relevant topics, especially as articles are published at an ever-increasing rate. In this new series of learning modules, we aim to provide scientists with essential tools, skills, and strategies for coproducing actionable science products with and for federal...
By
Land Management Research Program, Fort Collins Science Center, Southwest Biological Science Center
Skill-building workshops for researchers on the coproduction of actionable science

Skill-building workshops for researchers on the coproduction of actionable science

Public lands management requires the use of science, but agency staff rarely have time to stay current with all the science on management-relevant topics, especially as articles are published at an ever-increasing rate. In this new series of learning modules, we aim to provide scientists with essential tools, skills, and strategies for coproducing actionable science products with and for federal...
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Drying soil samples in the lab

Regional Assessment of Drought Impacts on Soils (RADIS)

Soils are the foundation of terrestrial ecosystems. They provide critical services including supplying a substrate and the nutrients necessary for plant growth, retaining moisture from precipitation, filtering contaminants from percolating waters, and acting as a sink of carbon. Healthy soils are key to sustaining both human and ecosystem health. However, global- and regional-scale disturbances...
By
Ecosystems Mission Area, Ecosystems Land Change Science Program, Geosciences and Environmental Change Science Center, Southwest Biological Science Center
Regional Assessment of Drought Impacts on Soils (RADIS)

Regional Assessment of Drought Impacts on Soils (RADIS)

Soils are the foundation of terrestrial ecosystems. They provide critical services including supplying a substrate and the nutrients necessary for plant growth, retaining moisture from precipitation, filtering contaminants from percolating waters, and acting as a sink of carbon. Healthy soils are key to sustaining both human and ecosystem health. However, global- and regional-scale disturbances...
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Biocrusts on the Colorado Plateau, Utah

Drought Adaptation Strategies for Arid Grasslands

Helping National Parks in the 4-Corners region manage grasslands in a changing world.
By
Ecosystems Mission Area, Land Management Research Program, Southwest Biological Science Center
Drought Adaptation Strategies for Arid Grasslands

Drought Adaptation Strategies for Arid Grasslands

Helping National Parks in the 4-Corners region manage grasslands in a changing world.
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USGS science for a changing world logo

Diverse data to improve Southwest fire forecasts: Joining novel remote sensing, post-fire dynamics, and intra-annual precipitation patterns

Fire has increased dramatically across the western U.S. and these increases are expected to continue. With this reality, it is critical that we improve our ability to forecast the timing, extent, and intensity of fire to provide resource managers and policy makers the information needed for effective decisions. For example, an advanced, spatially-explicit prediction of the upcoming fire...
By
Community for Data Integration (CDI)
Diverse data to improve Southwest fire forecasts: Joining novel remote sensing, post-fire dynamics, and intra-annual precipitation patterns

Diverse data to improve Southwest fire forecasts: Joining novel remote sensing, post-fire dynamics, and intra-annual precipitation patterns

Fire has increased dramatically across the western U.S. and these increases are expected to continue. With this reality, it is critical that we improve our ability to forecast the timing, extent, and intensity of fire to provide resource managers and policy makers the information needed for effective decisions. For example, an advanced, spatially-explicit prediction of the upcoming fire season
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Global gridded dataset of terrestrial biological nitrogen fixation across natural and agricultural biomes Global gridded dataset of terrestrial biological nitrogen fixation across natural and agricultural biomes

This dataset includes global rasters of terrestrial biological nitrogen fixation (BNF) rates (in kg N/ha/y) for each major N-fixing niche in natural biomes (trees, shrubs, herbs, soil, litter, dead wood, ground mosses, biocrusts, and epiphytic lichens) and agricultural biomes (legume crops, forage legumes, and rice). It also includes total natural terrestrial, total agricultural, and...
By
Forest and Rangeland Ecosystem Science Center

A global dataset of terrestrial biological nitrogen fixation A global dataset of terrestrial biological nitrogen fixation

This dataset includes field measurements of biological nitrogen fixation (BNF) in all major N-fixing niches across natural terrestrial biomes globally. The dataset comprises 32 variables including site location, biome type, N-fixing niche, sampling year, quantification method, BNF rate (in kg N/ha/y), the percentage of nitrogen derived from the atmosphere, N-fixer or N-fixing substrate...
By
Forest and Rangeland Ecosystem Science Center

Bibliography of U.S. Geological Survey Contributions to Carbon and Greenhouse Gas Science Bibliography of U.S. Geological Survey Contributions to Carbon and Greenhouse Gas Science

This data release contains a bibliography of U.S. Geological Survey publications on carbon and greenhouse gas research. Publications between 2014 and 2024 were identified using search terms such as: carbon, greenhouse gas, methane, nitrous oxide, emission, sequestration, and primary productivity. Publications were primarily sourced from the USGS Publications Warehouse (https://pubs.usgs...
By
Wetland and Aquatic Research Center

Phenology observations for cheatgrass (Bromus tectorum) and red brome (Bromus rubens) in the western United States Phenology observations for cheatgrass (Bromus tectorum) and red brome (Bromus rubens) in the western United States

This dataset consists of phenology observations of red brome (Bromus rubens) and cheatgrass (Bromus tectorum) collected at long-term monitoring sites and using daily timelapse camera imagery in the western United States. These observations include the location and day of year that flowering or senescence was observed per species. For timelapse camera images, 'flowering' observations...
By
Fort Collins Science Center

Site data from observations of post-fire and thinned stands of piñon-juniper woodlands on the Colorado Plateau Site data from observations of post-fire and thinned stands of piñon-juniper woodlands on the Colorado Plateau

These data were compiled to evaluate pinyon-juniper regeneration dynamics following stand-replacing wildfire and thinning treatments. Objectives of our study were to investigate vegetation community composition and tree recruitment in post-fire and post-thinning environments. These data represent plant and biological soil crust community composition and climatological records among...
By
Southwest Biological Science Center

Meteorological measurements from five weather stations in Grand and San Juan Counties in southeastern Utah (ver. 3.0, September 2024) Meteorological measurements from five weather stations in Grand and San Juan Counties in southeastern Utah (ver. 3.0, September 2024)

These data were compiled from six automated weather stations that together provide several points in the meteorological record across a latitudinal and elevational gradient in southeastern Utah. Recorded data from these weather stations are associated with several different studies. Meteorological data are important for quantifying short term weather events as well as longer term climate...
By
Ecosystems Land Change Science Program, Southwest Biological Science Center
Overhead view taken by drone of a USGS fieldwork site in Moab with multiple cars and a tent shelter Overhead view taken by drone of a USGS fieldwork site in Moab with multiple cars and a tent shelter
B-Roll: Field and drone remote sensing operations near Moab, Utah – May 2025
Overhead view taken by drone of a USGS fieldwork site in Moab with multiple cars and a tent shelter

B-Roll: Field and drone remote sensing operations near Moab, Utah – May 2025

B-Roll: Field and drone remote sensing operations near Moab, Utah – May 2025

In May 2025, the U.S. Geological Survey (USGS) National Uncrewed Systems Office (NUSO) collected uncrewed aircraft system (UAS, also known as drone) data to support a collaborative field campaign led by Sasha Reed of the Southwest Biological Science Center (SBSC) and Miguel Villarreal of the Western Geographic Science Center (WGSC) near Moab, Utah.

By
Core Science Systems Mission Area, National Land Imaging Program, Geosciences and Environmental Change Science Center
Overhead view taken by drone of a USGS fieldwork site in Moab with multiple cars and a tent shelter

B-Roll: Field and drone remote sensing operations near Moab, Utah – May 2025

B-Roll: Field and drone remote sensing operations near Moab, Utah – May 2025

In May 2025, the U.S. Geological Survey (USGS) National Uncrewed Systems Office (NUSO) collected uncrewed aircraft system (UAS, also known as drone) data to support a collaborative field campaign led by Sasha Reed of the Southwest Biological Science Center (SBSC) and Miguel Villarreal of the Western Geographic Science Center (WGSC) near Moab, Utah.

By
Core Science Systems Mission Area, National Land Imaging Program, Geosciences and Environmental Change Science Center
Drone's eye view of a USGS remote pilot during a biocrust mission near Moab, UT Drone's eye view of a USGS remote pilot during a biocrust mission near Moab, UT
Mapping biocrust with UAS technology in Moab, Utah
Drone's eye view of a USGS remote pilot during a biocrust mission near Moab, UT

Mapping biocrust with UAS technology in Moab, Utah

Mapping biocrust with UAS technology in Moab, Utah

USGS researchers teamed up for a biological soil crust (biocrust) remote sensing and field data campaign near Moab, Utah in February of 2022.

By
Core Science Systems Mission Area, National Land Imaging Program, National Land Imaging Program, Geosciences and Environmental Change Science Center
Drone's eye view of a USGS remote pilot during a biocrust mission near Moab, UT

Mapping biocrust with UAS technology in Moab, Utah

Mapping biocrust with UAS technology in Moab, Utah

USGS researchers teamed up for a biological soil crust (biocrust) remote sensing and field data campaign near Moab, Utah in February of 2022.

By
Core Science Systems Mission Area, National Land Imaging Program, National Land Imaging Program, Geosciences and Environmental Change Science Center
A screenshot from a video interview with Dr. Sasha Reed, SBSC, USGS, about biocrusts with the Nature Connects program
Screenshot from an interview on the Nature Connects program with Dr. Sasha Reed about biocrusts
Screenshot from an interview on the Nature Connects program with Dr. Sasha Reed about biocrusts
A screenshot from a video interview with Dr. Sasha Reed, SBSC, USGS, about biocrusts with the Nature Connects program

Screenshot from an interview on the Nature Connects program with Dr. Sasha Reed about biocrusts

Screenshot from an interview on the Nature Connects program with Dr. Sasha Reed about biocrusts

Screenshot from a video interview on The Nature Conservancy's Nature Connects program with Dr. Sasha Reed about biocrusts. Summary: "In this Nature Connects webinar, we hear from Dr. Sasha Reed, U.S. Geological Survey biogeochemist.

By
Southwest Biological Science Center, Southwest Biological Science Center
A screenshot from a video interview with Dr. Sasha Reed, SBSC, USGS, about biocrusts with the Nature Connects program

Screenshot from an interview on the Nature Connects program with Dr. Sasha Reed about biocrusts

Screenshot from an interview on the Nature Connects program with Dr. Sasha Reed about biocrusts

Screenshot from a video interview on The Nature Conservancy's Nature Connects program with Dr. Sasha Reed about biocrusts. Summary: "In this Nature Connects webinar, we hear from Dr. Sasha Reed, U.S. Geological Survey biogeochemist.

By
Southwest Biological Science Center, Southwest Biological Science Center
hawaii forest
Hawai'ian forest at Hawai'i in Volcanoes National Park.
Hawai'ian forest at Hawai'i in Volcanoes National Park.
hawaii forest

Hawai'ian forest at Hawai'i in Volcanoes National Park.

Hawai'ian forest at Hawai'i in Volcanoes National Park.

Photograph of a Hawai'ian forest near the youngest site along the Hawai'ian Long Substrate Age Gradient used in this study. This forest is on the big island of Hawai'i in Volcanoes National Park.

By
Climate Adaptation Science Centers, Communications and Publishing
hawaii forest

Hawai'ian forest at Hawai'i in Volcanoes National Park.

Hawai'ian forest at Hawai'i in Volcanoes National Park.

Photograph of a Hawai'ian forest near the youngest site along the Hawai'ian Long Substrate Age Gradient used in this study. This forest is on the big island of Hawai'i in Volcanoes National Park.

By
Climate Adaptation Science Centers, Communications and Publishing
Filter Total Items: 197

Effects of warming on growth and leaf colonization by litter mat-forming fungi in a wet tropical forest in Puerto Rico Effects of warming on growth and leaf colonization by litter mat-forming fungi in a wet tropical forest in Puerto Rico

Wet tropical forests are experiencing rising temperatures and increased frequency and intensity of extreme climatic events, such as cyclones, which can increase rates of soil erosion and surface runoff. Fungal litter mats, formed by agaric decomposer fungi, play a crucial role in stabilizing slopes, preventing erosion, and aiding nutrient cycling; however, little is known about how...
Authors
Ari E. Puentes, D. Jean Lodge, Deyaneira A. Ortiz-Iglesias, Tatiana Barreto-Vélez, Laura C. Rubio-Lebrón, Hieu P. Chu, Christine S. O'Connell, Sasha C. Reed, Tana E. Wood
By
Ecosystems Mission Area, Southwest Biological Science Center

Lowland tropical forests remain a methane sink under warming and long-term hurricane disturbance recovery Lowland tropical forests remain a methane sink under warming and long-term hurricane disturbance recovery

Methane (CH4) is a potent greenhouse gas, and tropical forests account for roughly one–third of global atmospheric CH4 uptake by soils. Projected warming and more frequent hurricanes in these ecosystems may alter soil CH4 sink strength, as warmer and wetter soils enhance methanogenesis activity. We measured soil CH4 and CO2 efflux during the calendar summer months of 2023 and 2024...
Authors
Gabriele Larocca Conte, Lucia Zuvela, Rachel Cruz-Perez, Tatiana Barreto-Vélez, Nibia Becerra-Santillan, Sophia F. Campbell, Hieu P. Chu, Trung Dam, Iana F. Grullón-Penkova, Miriam Kleit, Deyaneira A. Ortiz-Iglesias, Laura C. Rubio-Lebrón, Molly A. Cavaleri, Sasha C. Reed, Debjani Sihi, Tana E. Wood, Christine S. O'Connell
By
Ecosystems Mission Area, Southwest Biological Science Center

Abiotic and biotic controls of non-native perennial plant success in drylands Abiotic and biotic controls of non-native perennial plant success in drylands

Drivers of non-native plant success in drylands are poorly understood. Here we identify functional differences between dryland native and non-native perennial plants and assess how biotic, abiotic and anthropogenic factors shape the success of the latter. On the basis of plant community and functional trait data from 98 sites across 25 countries, we report a total of 41 non-native plant...
Authors
Soroor Rahmanian, Nico Eisenhauer, Yuanyuan Huang, Martin Hejda, Petr Pyšek, Hannes Feilhauer, David J. Eldridge, Nicholas Gross, Yoann Le Bagousse-Pinguet, Hugo Saiz, Manuel Delgado-Baquerizo, Miguel Berdugo, Victoria Ochoa, Beatriz Gozalo, Sergio Asensio, Emilio Guirado, Enrique Valencia, Miguel García-Gómez, Juan J. Gaitán, Betty J. Mendoza, César Plaza, Paloma Díaz-Martínez, Jaime Martínez-Valderrama, Mehdi Abedi, Negar Ahmadian, Rodrigo J. Ahumada, Fateh Amghar, Thiago Araújo, Antonio I. Arroyo, Farah Ben Salem, Niels Blaum, Enkhjargal Boldbat, Bazartseren Boldgiv, Matthew A. Bowker, Liesbeth van den Brink, Chongfeng Bu, Rafaella Canessa, Andrea P. Castillo-Monroy, Helena Castro, Patricio Castro-Quezada, Ghassen Chaieb, Roukaya Chibani, Abel A. Conceição, Yvonne C. Davila, Balázs Deák, David A. Donoso, Andrew David Dougill, Carlos Iván Espinosa, Alex Fajardo, Mohammad Farzam, Daniela Ferrante, Jorgelina Franzese, Lauchlan H. Fraser, Erika L. Geiger, Sofia Laura Gonzalez, Elizabeth Gusman Montalván, Robert Hering, Eugene Marais, Rosa Mary Hernández, Sandra Daniela Hernández-Valdez, Norbert Hölzel, Elisabeth Huber-Sannwald, Oswaldo Jadán, Anke Jentsch, Liana Kindermann, Melanie Köbel, Peter C. le Roux, Cintia V. Leder, Xinhao Li, Pierre Liancourt, Anja Linstädter, Jushan Liu, Michelle A. Louw, Gillian Maggs-Kölling, Thulani P. Makhalanyane, Oumarou Malam Issa, Antonio J. Manzaneda, Pierre Margerie, Raphaël Martin, Mitchel P. McClaran, João Vitor S. Messeder, Juan P. Mora, Gerardo Moreno, Seth M. Munson, Girish R. Nair, Alice Nunes, Gabriel Oliva, Salza Palpurina, Guadalupe Peter, Yolanda Pueyo, Emiliano Quiroga, Sasha C. Reed, Pedro J. Rey, Alexandra Rodríguez, Victor Rolo, Jan C. Ruppert, Ayman Salah, Shlomo Sarig, Brajesh K. Singh, Anthony M. Swemmer, Alberto L. Teixido, Andrew D. Thomas, Katja Tielbörger, Samantha K. Travers, Orsolya Valkó, Wanyoike Wamiti, Deli Wang, Lixin Wang, Glenda M. Wardle, Peter Wolff, Laura Yahdjian, Gastón R. Oñatibia, Reza Yari, Eli Zaady, Yuanming Zhang, Xiaobing Zhou, Fernando T. Maestre
By
Ecosystems Mission Area, Southwest Biological Science Center

Fungi, fire, and feedbacks: Grasses and wildfire interact to alter ectomycorrhizal fungal communities and decrease tree seedling growth Fungi, fire, and feedbacks: Grasses and wildfire interact to alter ectomycorrhizal fungal communities and decrease tree seedling growth

Wildfire and its effects, including changes to soil biota and the introduction of invasive or seeded grasses, can cause long-term shifts in ecological communities. Post-wildfire establishment of long-lived trees and shrubs is a critical bottleneck to recovering native plant communities. Ectomycorrhizal fungi (EMF) can improve plant responses to stressors and influence seedling...
Authors
G.M. Trimber, Sasha C. Reed, John B. Bradford, Cara Marie Lauria, T. Spector, R.J. Rondeau, Michala Lee Phillips, C.A. Gehring
By
Ecosystems Mission Area, Southwest Biological Science Center

A U.S. scientific community vision for sustained earth observations of greenhouse gases to support local to global action A U.S. scientific community vision for sustained earth observations of greenhouse gases to support local to global action

Managing carbon stocks in the land, ocean, and atmosphere under changing climate requires a globally-integrated view of carbon cycle processes at local and regional scales. The growing Earth Observation (EO) record is the backbone of this multi-scale system, providing local information with discrete coverage from surface measurements and regional information at global scale from...
Authors
N. Parazoo, D. Carroll, J. B. Abshire, Y. M Bar-On, R. A. Birdsey, A. A. Bloom, K. W. Bowman, R. K. Braghiere, L.M. Bruhwiler, B. Byrne, A. Chatterjee, D. Crisp, L. Duncanson, A. F. Feldman, A. M. Fox, C. Frankenberg, B. A. Gay, F. Hopkins, F. M. Hoffman, J. R. Holmquist, L. R. Hutyra, M. Keller, C. D. Koven, Laughner J. L., J. Liu, N. S. Lovenduski, N. Macbean, G. A. McKinley, G. McNicol, D. Menemenlis, A. M. Michalak, C. E. Miller, H. Nesser, T. Oda, E. M. Ordway, L. E. Ott, K. Paustian, Z. A. Pierrat, B. Poulter, Sasha C. Reed, D. S. Schimel, S. P. Serbin, S.S. Saatchi, H. Suto, Lisamarie Windham-Myers, D. Wunch
By
Ecosystems Mission Area, Southwest Biological Science Center

Grass-Cast Southwest: A seasonal rangeland productivity forecast for the southwestern United States Grass-Cast Southwest: A seasonal rangeland productivity forecast for the southwestern United States

Here, we present a first assessment of the US Department of Agriculture’s (USDA) “Grass-Cast Southwest,” which is a forecasting tool for rangeland aboveground net primary productivity (ANPP) for the southwest region of the United States. Our results show that ANPP forecasts in early April were relatively close to the observation-based ANPP estimates in late May for all years evaluated (R...
Authors
Emilio Aguilar-Cubilla, Malannie D. Hartman, William J. Parton, Sasha C. Reed, Justin D. Derner, Darin K. Schulte, Elise S. Gornish, David J.P. Moore, Emile Elias, Dannele E. Peck, Brian A. Fuchs, William K. Smith
By
Ecosystems Mission Area, Southwest Biological Science Center

Non-USGS Publications**

Sullivan, B.W., Alvarez-Clare, S., Castle, S.C., Porder, S., Reed, S.C., Schreeg, L., Townsend, A.R. and Cleveland, C.C., 2014. Assessing nutrient limitation in complex forested ecosystems: alternatives to large‐scale fertilization experiments. Ecology, 95(3), pp.668-681.
Cleveland, C.C., Houlton, B.Z., Smith, W.K., Marklein, A.R., Reed, S.C., Parton, W., Del Grosso, S.J. and Running, S.W., 2013. Patterns of new versus recycled primary production in the terrestrial biosphere. Proceedings of the National Academy of Sciences, 110(31), pp.12733-12737.
Reed, S.C., Cleveland, C.C. and Townsend, A.R., 2013. Relationships among phosphorus, molybdenum and free-living nitrogen fixation in tropical rain forests: results from observational and experimental analyses. Biogeochemistry, 114(1-3), pp.135-147.
Wickings, K., Grandy, A.S., Reed, S.C. and Cleveland, C.C., 2012. The origin of litter chemical complexity during decomposition. Ecology Letters, 15(10), pp.1180-1188.
Reed, S.C., 2008. Scaling from molecules to ecosystems: controls over free-living nitrogen fixation in terrestrial ecosystems. ProQuest.
Sattin, S.R., Cleveland, C.C., Hood, E., Reed, S.C., King, A.J., Schmidt, S.K., Robeson, M.S., Ascarrunz, N. and Nemergut, D.R., 2009. Functional shifts in unvegetated, perhumid, recently-deglaciated soils do not correlate with shifts in soil bacterial community composition. The Journal of Microbiology, 47(6), pp.673-681.
Costello, E.K., Halloy, S.R., Reed, S.C., Sowell, P. and Schmidt, S.K., 2009. Fumarole-supported islands of biodiversity within a hyperarid, high-elevation landscape on Socompa Volcano, Puna de Atacama, Andes. Applied and Environmental Microbiology, 75(3), pp.735-747.
Freeman, K.R., Pescador, M.Y., Reed, S.C., Costello, E.K., Robeson, M.S. and Schmidt, S.K., 2009. Soil CO2 flux and photoautotrophic community composition in high‐elevation,‘barren’soil. Environmental Microbiology, 11(3), pp.674-686.
Schmidt, S.K., Reed, S.C., Nemergut, D.R., Grandy, A.S., Cleveland, C.C., Weintraub, M.N., Hill, A.W., Costello, E.K., Meyer, A.F., Neff, J.C. and Martin, A.M., 2008. The earliest stages of ecosystem succession in high-elevation (5000 metres above sea level), recently deglaciated soils. Proceedings of the Royal Society of London B: Biological Sciences, 275(1653), pp.2793-2802.
Reed, S.C., Cleveland, C.C. and Townsend, A.R., 2008. Tree species control rates of free-living nitrogen fixation in a tropical rain forest. Ecology, 89(10), pp.2924-2934.
Reed, S.C., Cleveland, C.C. and Townsend, A.R., 2007. Controls over leaf litter and soil nitrogen fixation in two lowland tropical rain forests. Biotropica, 39(5), pp.585-592.
Schmidt, S.K., Costello, E.K., Nemergut, D.R., Cleveland, C.C., Reed, S.C., Weintraub, M.N., Meyer, A.F. and Martin, A.M., 2007. Biogeochemical consequences of rapid microbial turnover and seasonal succession in soil. Ecology, 88(6), pp.1379-1385.
Reed, S.C., Seastedt, T.R., Mann, C.M., Suding, K.N., Townsend, A.R. and Cherwin, K.L., 2007. Phosphorus fertilization stimulates nitrogen fixation and increases inorganic nitrogen concentrations in a restored prairie. Applied Soil Ecology, 36(2), pp.238-242.
Cleveland, C.C., Reed, S.C. and Townsend, A.R., 2006. Nutrient regulation of organic matter decomposition in a tropical rain forest. Ecology, 87(2), pp.492-503.
Bowker, M.A., Reed, S.C., Belnap, J. and Phillips, S.L., 2002. Temporal variation in community composition, pigmentation, and Fv/Fm of desert cyanobacterial soil crusts. Microbial Ecology, 43(1), pp.13-25.
Reed, S.C., Capitosti, G.J., Zhu, Z. and Modarelli, D.A., 2001. Photochemical generation and matrix-isolation detection of dimethylvinylidene. The Journal of Organic Chemistry, 66(1), pp.287-299.
Reed, S.C. and Modarelli, D.A., 1996. Conformational effects on the excited state 1, 2-hydrogen migration in alkyldiazomethanes. Tetrahedron Letters, 37(40), pp.7209-7212.

**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.

Predicting when the grass is greener: new phenological forecasts for invasive annual grasses

Predicting when the grass is greener: new phenological forecasts for invasive annual grasses

Two major hurdles in the effective control of invasive grasses are: (1) Anticipating the timing of key stages that are susceptible to management...

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A global study reveals a surprise: The driest places have the highest diversity of plant traits

A global study reveals a surprise: The driest places have the highest diversity of plant traits

Common ecological knowledge holds that areas with more rain, like rainforests, house higher plant diversity than drylands. However, a new global study...

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SBSC’s restoration research featured in the 2023 National Academies of Sciences, Engineering, and Medicine report

SBSC’s restoration research featured in the 2023 National Academies of Sciences, Engineering, and Medicine report

The National Academies of Sciences, Engineering, and Medicine (NASEM) released their 2023 “Assessment of Native Seeds Needs and the Capacity for Their...

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Exploring the Role of Cryptic Nitrogen Fixers in Terrestrial Ecosystems

Exploring the Role of Cryptic Nitrogen Fixers in Terrestrial Ecosystems

Biological nitrogen fixation—the conversion of inert atmospheric nitrogen gas into biologically available nitrogen - is critical for supporting both...

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Science and Products

Filter Total Items: 19
Drill rig in the distance off a dirt road in a semi-aid system

Supporting energy and mineral development through successful reclamation

Federal lands of the US contain important reserves of oil, gas and other resources important for Unleashing American Energy (SO 3418). After development of these resources is complete, successfully reclaiming disturbed lands is a necessary step towards restoring wildlife habitat, forage production, and maintaining natural resources for future use. To improve reclamation outcomes on these lands and...
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Ecosystems Mission Area, Land Management Research Program, Species Management Research Program, Fort Collins Science Center, Southwest Biological Science Center, Western Geographic Science Center
Supporting energy and mineral development through successful reclamation

Supporting energy and mineral development through successful reclamation

Federal lands of the US contain important reserves of oil, gas and other resources important for Unleashing American Energy (SO 3418). After development of these resources is complete, successfully reclaiming disturbed lands is a necessary step towards restoring wildlife habitat, forage production, and maintaining natural resources for future use. To improve reclamation outcomes on these lands and...
Learn More
Biocrusts with lichen

Biological Soil Crust ("Biocrust") Science

Biological soil crusts (biocrusts) are commonly found on the soil surface in arid and semi-arid ecosystems (collectively called drylands). Biocrusts can consist of mosses, cyanobacteria, lichens, algae, and microfungi, and they strongly interact with the soil. These organisms or consortium of disparate organisms, depending on the specific biocrust, are important to the functioning of ecosystems...
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Ecosystems Mission Area, Land Management Research Program, Southwest Biological Science Center
Biological Soil Crust ("Biocrust") Science

Biological Soil Crust ("Biocrust") Science

Biological soil crusts (biocrusts) are commonly found on the soil surface in arid and semi-arid ecosystems (collectively called drylands). Biocrusts can consist of mosses, cyanobacteria, lichens, algae, and microfungi, and they strongly interact with the soil. These organisms or consortium of disparate organisms, depending on the specific biocrust, are important to the functioning of ecosystems...
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field of wildflowers in the foreground, with brown mountains and blue sky in the background

Skill-building workshops for researchers on the coproduction of actionable science

Public lands management requires the use of science, but agency staff rarely have time to stay current with all the science on management-relevant topics, especially as articles are published at an ever-increasing rate. In this new series of learning modules, we aim to provide scientists with essential tools, skills, and strategies for coproducing actionable science products with and for federal...
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Land Management Research Program, Fort Collins Science Center, Southwest Biological Science Center
Skill-building workshops for researchers on the coproduction of actionable science

Skill-building workshops for researchers on the coproduction of actionable science

Public lands management requires the use of science, but agency staff rarely have time to stay current with all the science on management-relevant topics, especially as articles are published at an ever-increasing rate. In this new series of learning modules, we aim to provide scientists with essential tools, skills, and strategies for coproducing actionable science products with and for federal...
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Drying soil samples in the lab

Regional Assessment of Drought Impacts on Soils (RADIS)

Soils are the foundation of terrestrial ecosystems. They provide critical services including supplying a substrate and the nutrients necessary for plant growth, retaining moisture from precipitation, filtering contaminants from percolating waters, and acting as a sink of carbon. Healthy soils are key to sustaining both human and ecosystem health. However, global- and regional-scale disturbances...
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Ecosystems Mission Area, Ecosystems Land Change Science Program, Geosciences and Environmental Change Science Center, Southwest Biological Science Center
Regional Assessment of Drought Impacts on Soils (RADIS)

Regional Assessment of Drought Impacts on Soils (RADIS)

Soils are the foundation of terrestrial ecosystems. They provide critical services including supplying a substrate and the nutrients necessary for plant growth, retaining moisture from precipitation, filtering contaminants from percolating waters, and acting as a sink of carbon. Healthy soils are key to sustaining both human and ecosystem health. However, global- and regional-scale disturbances...
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Biocrusts on the Colorado Plateau, Utah

Drought Adaptation Strategies for Arid Grasslands

Helping National Parks in the 4-Corners region manage grasslands in a changing world.
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Ecosystems Mission Area, Land Management Research Program, Southwest Biological Science Center
Drought Adaptation Strategies for Arid Grasslands

Drought Adaptation Strategies for Arid Grasslands

Helping National Parks in the 4-Corners region manage grasslands in a changing world.
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USGS science for a changing world logo

Diverse data to improve Southwest fire forecasts: Joining novel remote sensing, post-fire dynamics, and intra-annual precipitation patterns

Fire has increased dramatically across the western U.S. and these increases are expected to continue. With this reality, it is critical that we improve our ability to forecast the timing, extent, and intensity of fire to provide resource managers and policy makers the information needed for effective decisions. For example, an advanced, spatially-explicit prediction of the upcoming fire...
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Community for Data Integration (CDI)
Diverse data to improve Southwest fire forecasts: Joining novel remote sensing, post-fire dynamics, and intra-annual precipitation patterns

Diverse data to improve Southwest fire forecasts: Joining novel remote sensing, post-fire dynamics, and intra-annual precipitation patterns

Fire has increased dramatically across the western U.S. and these increases are expected to continue. With this reality, it is critical that we improve our ability to forecast the timing, extent, and intensity of fire to provide resource managers and policy makers the information needed for effective decisions. For example, an advanced, spatially-explicit prediction of the upcoming fire season
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Global gridded dataset of terrestrial biological nitrogen fixation across natural and agricultural biomes Global gridded dataset of terrestrial biological nitrogen fixation across natural and agricultural biomes

This dataset includes global rasters of terrestrial biological nitrogen fixation (BNF) rates (in kg N/ha/y) for each major N-fixing niche in natural biomes (trees, shrubs, herbs, soil, litter, dead wood, ground mosses, biocrusts, and epiphytic lichens) and agricultural biomes (legume crops, forage legumes, and rice). It also includes total natural terrestrial, total agricultural, and...
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Forest and Rangeland Ecosystem Science Center

A global dataset of terrestrial biological nitrogen fixation A global dataset of terrestrial biological nitrogen fixation

This dataset includes field measurements of biological nitrogen fixation (BNF) in all major N-fixing niches across natural terrestrial biomes globally. The dataset comprises 32 variables including site location, biome type, N-fixing niche, sampling year, quantification method, BNF rate (in kg N/ha/y), the percentage of nitrogen derived from the atmosphere, N-fixer or N-fixing substrate...
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Forest and Rangeland Ecosystem Science Center

Bibliography of U.S. Geological Survey Contributions to Carbon and Greenhouse Gas Science Bibliography of U.S. Geological Survey Contributions to Carbon and Greenhouse Gas Science

This data release contains a bibliography of U.S. Geological Survey publications on carbon and greenhouse gas research. Publications between 2014 and 2024 were identified using search terms such as: carbon, greenhouse gas, methane, nitrous oxide, emission, sequestration, and primary productivity. Publications were primarily sourced from the USGS Publications Warehouse (https://pubs.usgs...
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Wetland and Aquatic Research Center

Phenology observations for cheatgrass (Bromus tectorum) and red brome (Bromus rubens) in the western United States Phenology observations for cheatgrass (Bromus tectorum) and red brome (Bromus rubens) in the western United States

This dataset consists of phenology observations of red brome (Bromus rubens) and cheatgrass (Bromus tectorum) collected at long-term monitoring sites and using daily timelapse camera imagery in the western United States. These observations include the location and day of year that flowering or senescence was observed per species. For timelapse camera images, 'flowering' observations...
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Fort Collins Science Center

Site data from observations of post-fire and thinned stands of piñon-juniper woodlands on the Colorado Plateau Site data from observations of post-fire and thinned stands of piñon-juniper woodlands on the Colorado Plateau

These data were compiled to evaluate pinyon-juniper regeneration dynamics following stand-replacing wildfire and thinning treatments. Objectives of our study were to investigate vegetation community composition and tree recruitment in post-fire and post-thinning environments. These data represent plant and biological soil crust community composition and climatological records among...
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Southwest Biological Science Center

Meteorological measurements from five weather stations in Grand and San Juan Counties in southeastern Utah (ver. 3.0, September 2024) Meteorological measurements from five weather stations in Grand and San Juan Counties in southeastern Utah (ver. 3.0, September 2024)

These data were compiled from six automated weather stations that together provide several points in the meteorological record across a latitudinal and elevational gradient in southeastern Utah. Recorded data from these weather stations are associated with several different studies. Meteorological data are important for quantifying short term weather events as well as longer term climate...
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Ecosystems Land Change Science Program, Southwest Biological Science Center
Overhead view taken by drone of a USGS fieldwork site in Moab with multiple cars and a tent shelter Overhead view taken by drone of a USGS fieldwork site in Moab with multiple cars and a tent shelter
B-Roll: Field and drone remote sensing operations near Moab, Utah – May 2025
Overhead view taken by drone of a USGS fieldwork site in Moab with multiple cars and a tent shelter

B-Roll: Field and drone remote sensing operations near Moab, Utah – May 2025

B-Roll: Field and drone remote sensing operations near Moab, Utah – May 2025

In May 2025, the U.S. Geological Survey (USGS) National Uncrewed Systems Office (NUSO) collected uncrewed aircraft system (UAS, also known as drone) data to support a collaborative field campaign led by Sasha Reed of the Southwest Biological Science Center (SBSC) and Miguel Villarreal of the Western Geographic Science Center (WGSC) near Moab, Utah.

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Core Science Systems Mission Area, National Land Imaging Program, Geosciences and Environmental Change Science Center
Overhead view taken by drone of a USGS fieldwork site in Moab with multiple cars and a tent shelter

B-Roll: Field and drone remote sensing operations near Moab, Utah – May 2025

B-Roll: Field and drone remote sensing operations near Moab, Utah – May 2025

In May 2025, the U.S. Geological Survey (USGS) National Uncrewed Systems Office (NUSO) collected uncrewed aircraft system (UAS, also known as drone) data to support a collaborative field campaign led by Sasha Reed of the Southwest Biological Science Center (SBSC) and Miguel Villarreal of the Western Geographic Science Center (WGSC) near Moab, Utah.

By
Core Science Systems Mission Area, National Land Imaging Program, Geosciences and Environmental Change Science Center
Drone's eye view of a USGS remote pilot during a biocrust mission near Moab, UT Drone's eye view of a USGS remote pilot during a biocrust mission near Moab, UT
Mapping biocrust with UAS technology in Moab, Utah
Drone's eye view of a USGS remote pilot during a biocrust mission near Moab, UT

Mapping biocrust with UAS technology in Moab, Utah

Mapping biocrust with UAS technology in Moab, Utah

USGS researchers teamed up for a biological soil crust (biocrust) remote sensing and field data campaign near Moab, Utah in February of 2022.

By
Core Science Systems Mission Area, National Land Imaging Program, National Land Imaging Program, Geosciences and Environmental Change Science Center
Drone's eye view of a USGS remote pilot during a biocrust mission near Moab, UT

Mapping biocrust with UAS technology in Moab, Utah

Mapping biocrust with UAS technology in Moab, Utah

USGS researchers teamed up for a biological soil crust (biocrust) remote sensing and field data campaign near Moab, Utah in February of 2022.

By
Core Science Systems Mission Area, National Land Imaging Program, National Land Imaging Program, Geosciences and Environmental Change Science Center
A screenshot from a video interview with Dr. Sasha Reed, SBSC, USGS, about biocrusts with the Nature Connects program
Screenshot from an interview on the Nature Connects program with Dr. Sasha Reed about biocrusts
Screenshot from an interview on the Nature Connects program with Dr. Sasha Reed about biocrusts
A screenshot from a video interview with Dr. Sasha Reed, SBSC, USGS, about biocrusts with the Nature Connects program

Screenshot from an interview on the Nature Connects program with Dr. Sasha Reed about biocrusts

Screenshot from an interview on the Nature Connects program with Dr. Sasha Reed about biocrusts

Screenshot from a video interview on The Nature Conservancy's Nature Connects program with Dr. Sasha Reed about biocrusts. Summary: "In this Nature Connects webinar, we hear from Dr. Sasha Reed, U.S. Geological Survey biogeochemist.

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Southwest Biological Science Center, Southwest Biological Science Center
A screenshot from a video interview with Dr. Sasha Reed, SBSC, USGS, about biocrusts with the Nature Connects program

Screenshot from an interview on the Nature Connects program with Dr. Sasha Reed about biocrusts

Screenshot from an interview on the Nature Connects program with Dr. Sasha Reed about biocrusts

Screenshot from a video interview on The Nature Conservancy's Nature Connects program with Dr. Sasha Reed about biocrusts. Summary: "In this Nature Connects webinar, we hear from Dr. Sasha Reed, U.S. Geological Survey biogeochemist.

By
Southwest Biological Science Center, Southwest Biological Science Center
hawaii forest
Hawai'ian forest at Hawai'i in Volcanoes National Park.
Hawai'ian forest at Hawai'i in Volcanoes National Park.
hawaii forest

Hawai'ian forest at Hawai'i in Volcanoes National Park.

Hawai'ian forest at Hawai'i in Volcanoes National Park.

Photograph of a Hawai'ian forest near the youngest site along the Hawai'ian Long Substrate Age Gradient used in this study. This forest is on the big island of Hawai'i in Volcanoes National Park.

By
Climate Adaptation Science Centers, Communications and Publishing
hawaii forest

Hawai'ian forest at Hawai'i in Volcanoes National Park.

Hawai'ian forest at Hawai'i in Volcanoes National Park.

Photograph of a Hawai'ian forest near the youngest site along the Hawai'ian Long Substrate Age Gradient used in this study. This forest is on the big island of Hawai'i in Volcanoes National Park.

By
Climate Adaptation Science Centers, Communications and Publishing
Filter Total Items: 197

Effects of warming on growth and leaf colonization by litter mat-forming fungi in a wet tropical forest in Puerto Rico Effects of warming on growth and leaf colonization by litter mat-forming fungi in a wet tropical forest in Puerto Rico

Wet tropical forests are experiencing rising temperatures and increased frequency and intensity of extreme climatic events, such as cyclones, which can increase rates of soil erosion and surface runoff. Fungal litter mats, formed by agaric decomposer fungi, play a crucial role in stabilizing slopes, preventing erosion, and aiding nutrient cycling; however, little is known about how...
Authors
Ari E. Puentes, D. Jean Lodge, Deyaneira A. Ortiz-Iglesias, Tatiana Barreto-Vélez, Laura C. Rubio-Lebrón, Hieu P. Chu, Christine S. O'Connell, Sasha C. Reed, Tana E. Wood
By
Ecosystems Mission Area, Southwest Biological Science Center

Lowland tropical forests remain a methane sink under warming and long-term hurricane disturbance recovery Lowland tropical forests remain a methane sink under warming and long-term hurricane disturbance recovery

Methane (CH4) is a potent greenhouse gas, and tropical forests account for roughly one–third of global atmospheric CH4 uptake by soils. Projected warming and more frequent hurricanes in these ecosystems may alter soil CH4 sink strength, as warmer and wetter soils enhance methanogenesis activity. We measured soil CH4 and CO2 efflux during the calendar summer months of 2023 and 2024...
Authors
Gabriele Larocca Conte, Lucia Zuvela, Rachel Cruz-Perez, Tatiana Barreto-Vélez, Nibia Becerra-Santillan, Sophia F. Campbell, Hieu P. Chu, Trung Dam, Iana F. Grullón-Penkova, Miriam Kleit, Deyaneira A. Ortiz-Iglesias, Laura C. Rubio-Lebrón, Molly A. Cavaleri, Sasha C. Reed, Debjani Sihi, Tana E. Wood, Christine S. O'Connell
By
Ecosystems Mission Area, Southwest Biological Science Center

Abiotic and biotic controls of non-native perennial plant success in drylands Abiotic and biotic controls of non-native perennial plant success in drylands

Drivers of non-native plant success in drylands are poorly understood. Here we identify functional differences between dryland native and non-native perennial plants and assess how biotic, abiotic and anthropogenic factors shape the success of the latter. On the basis of plant community and functional trait data from 98 sites across 25 countries, we report a total of 41 non-native plant...
Authors
Soroor Rahmanian, Nico Eisenhauer, Yuanyuan Huang, Martin Hejda, Petr Pyšek, Hannes Feilhauer, David J. Eldridge, Nicholas Gross, Yoann Le Bagousse-Pinguet, Hugo Saiz, Manuel Delgado-Baquerizo, Miguel Berdugo, Victoria Ochoa, Beatriz Gozalo, Sergio Asensio, Emilio Guirado, Enrique Valencia, Miguel García-Gómez, Juan J. Gaitán, Betty J. Mendoza, César Plaza, Paloma Díaz-Martínez, Jaime Martínez-Valderrama, Mehdi Abedi, Negar Ahmadian, Rodrigo J. Ahumada, Fateh Amghar, Thiago Araújo, Antonio I. Arroyo, Farah Ben Salem, Niels Blaum, Enkhjargal Boldbat, Bazartseren Boldgiv, Matthew A. Bowker, Liesbeth van den Brink, Chongfeng Bu, Rafaella Canessa, Andrea P. Castillo-Monroy, Helena Castro, Patricio Castro-Quezada, Ghassen Chaieb, Roukaya Chibani, Abel A. Conceição, Yvonne C. Davila, Balázs Deák, David A. Donoso, Andrew David Dougill, Carlos Iván Espinosa, Alex Fajardo, Mohammad Farzam, Daniela Ferrante, Jorgelina Franzese, Lauchlan H. Fraser, Erika L. Geiger, Sofia Laura Gonzalez, Elizabeth Gusman Montalván, Robert Hering, Eugene Marais, Rosa Mary Hernández, Sandra Daniela Hernández-Valdez, Norbert Hölzel, Elisabeth Huber-Sannwald, Oswaldo Jadán, Anke Jentsch, Liana Kindermann, Melanie Köbel, Peter C. le Roux, Cintia V. Leder, Xinhao Li, Pierre Liancourt, Anja Linstädter, Jushan Liu, Michelle A. Louw, Gillian Maggs-Kölling, Thulani P. Makhalanyane, Oumarou Malam Issa, Antonio J. Manzaneda, Pierre Margerie, Raphaël Martin, Mitchel P. McClaran, João Vitor S. Messeder, Juan P. Mora, Gerardo Moreno, Seth M. Munson, Girish R. Nair, Alice Nunes, Gabriel Oliva, Salza Palpurina, Guadalupe Peter, Yolanda Pueyo, Emiliano Quiroga, Sasha C. Reed, Pedro J. Rey, Alexandra Rodríguez, Victor Rolo, Jan C. Ruppert, Ayman Salah, Shlomo Sarig, Brajesh K. Singh, Anthony M. Swemmer, Alberto L. Teixido, Andrew D. Thomas, Katja Tielbörger, Samantha K. Travers, Orsolya Valkó, Wanyoike Wamiti, Deli Wang, Lixin Wang, Glenda M. Wardle, Peter Wolff, Laura Yahdjian, Gastón R. Oñatibia, Reza Yari, Eli Zaady, Yuanming Zhang, Xiaobing Zhou, Fernando T. Maestre
By
Ecosystems Mission Area, Southwest Biological Science Center

Fungi, fire, and feedbacks: Grasses and wildfire interact to alter ectomycorrhizal fungal communities and decrease tree seedling growth Fungi, fire, and feedbacks: Grasses and wildfire interact to alter ectomycorrhizal fungal communities and decrease tree seedling growth

Wildfire and its effects, including changes to soil biota and the introduction of invasive or seeded grasses, can cause long-term shifts in ecological communities. Post-wildfire establishment of long-lived trees and shrubs is a critical bottleneck to recovering native plant communities. Ectomycorrhizal fungi (EMF) can improve plant responses to stressors and influence seedling...
Authors
G.M. Trimber, Sasha C. Reed, John B. Bradford, Cara Marie Lauria, T. Spector, R.J. Rondeau, Michala Lee Phillips, C.A. Gehring
By
Ecosystems Mission Area, Southwest Biological Science Center

A U.S. scientific community vision for sustained earth observations of greenhouse gases to support local to global action A U.S. scientific community vision for sustained earth observations of greenhouse gases to support local to global action

Managing carbon stocks in the land, ocean, and atmosphere under changing climate requires a globally-integrated view of carbon cycle processes at local and regional scales. The growing Earth Observation (EO) record is the backbone of this multi-scale system, providing local information with discrete coverage from surface measurements and regional information at global scale from...
Authors
N. Parazoo, D. Carroll, J. B. Abshire, Y. M Bar-On, R. A. Birdsey, A. A. Bloom, K. W. Bowman, R. K. Braghiere, L.M. Bruhwiler, B. Byrne, A. Chatterjee, D. Crisp, L. Duncanson, A. F. Feldman, A. M. Fox, C. Frankenberg, B. A. Gay, F. Hopkins, F. M. Hoffman, J. R. Holmquist, L. R. Hutyra, M. Keller, C. D. Koven, Laughner J. L., J. Liu, N. S. Lovenduski, N. Macbean, G. A. McKinley, G. McNicol, D. Menemenlis, A. M. Michalak, C. E. Miller, H. Nesser, T. Oda, E. M. Ordway, L. E. Ott, K. Paustian, Z. A. Pierrat, B. Poulter, Sasha C. Reed, D. S. Schimel, S. P. Serbin, S.S. Saatchi, H. Suto, Lisamarie Windham-Myers, D. Wunch
By
Ecosystems Mission Area, Southwest Biological Science Center

Grass-Cast Southwest: A seasonal rangeland productivity forecast for the southwestern United States Grass-Cast Southwest: A seasonal rangeland productivity forecast for the southwestern United States

Here, we present a first assessment of the US Department of Agriculture’s (USDA) “Grass-Cast Southwest,” which is a forecasting tool for rangeland aboveground net primary productivity (ANPP) for the southwest region of the United States. Our results show that ANPP forecasts in early April were relatively close to the observation-based ANPP estimates in late May for all years evaluated (R...
Authors
Emilio Aguilar-Cubilla, Malannie D. Hartman, William J. Parton, Sasha C. Reed, Justin D. Derner, Darin K. Schulte, Elise S. Gornish, David J.P. Moore, Emile Elias, Dannele E. Peck, Brian A. Fuchs, William K. Smith
By
Ecosystems Mission Area, Southwest Biological Science Center

Non-USGS Publications**

Sullivan, B.W., Alvarez-Clare, S., Castle, S.C., Porder, S., Reed, S.C., Schreeg, L., Townsend, A.R. and Cleveland, C.C., 2014. Assessing nutrient limitation in complex forested ecosystems: alternatives to large‐scale fertilization experiments. Ecology, 95(3), pp.668-681.
Cleveland, C.C., Houlton, B.Z., Smith, W.K., Marklein, A.R., Reed, S.C., Parton, W., Del Grosso, S.J. and Running, S.W., 2013. Patterns of new versus recycled primary production in the terrestrial biosphere. Proceedings of the National Academy of Sciences, 110(31), pp.12733-12737.
Reed, S.C., Cleveland, C.C. and Townsend, A.R., 2013. Relationships among phosphorus, molybdenum and free-living nitrogen fixation in tropical rain forests: results from observational and experimental analyses. Biogeochemistry, 114(1-3), pp.135-147.
Wickings, K., Grandy, A.S., Reed, S.C. and Cleveland, C.C., 2012. The origin of litter chemical complexity during decomposition. Ecology Letters, 15(10), pp.1180-1188.
Reed, S.C., 2008. Scaling from molecules to ecosystems: controls over free-living nitrogen fixation in terrestrial ecosystems. ProQuest.
Sattin, S.R., Cleveland, C.C., Hood, E., Reed, S.C., King, A.J., Schmidt, S.K., Robeson, M.S., Ascarrunz, N. and Nemergut, D.R., 2009. Functional shifts in unvegetated, perhumid, recently-deglaciated soils do not correlate with shifts in soil bacterial community composition. The Journal of Microbiology, 47(6), pp.673-681.
Costello, E.K., Halloy, S.R., Reed, S.C., Sowell, P. and Schmidt, S.K., 2009. Fumarole-supported islands of biodiversity within a hyperarid, high-elevation landscape on Socompa Volcano, Puna de Atacama, Andes. Applied and Environmental Microbiology, 75(3), pp.735-747.
Freeman, K.R., Pescador, M.Y., Reed, S.C., Costello, E.K., Robeson, M.S. and Schmidt, S.K., 2009. Soil CO2 flux and photoautotrophic community composition in high‐elevation,‘barren’soil. Environmental Microbiology, 11(3), pp.674-686.
Schmidt, S.K., Reed, S.C., Nemergut, D.R., Grandy, A.S., Cleveland, C.C., Weintraub, M.N., Hill, A.W., Costello, E.K., Meyer, A.F., Neff, J.C. and Martin, A.M., 2008. The earliest stages of ecosystem succession in high-elevation (5000 metres above sea level), recently deglaciated soils. Proceedings of the Royal Society of London B: Biological Sciences, 275(1653), pp.2793-2802.
Reed, S.C., Cleveland, C.C. and Townsend, A.R., 2008. Tree species control rates of free-living nitrogen fixation in a tropical rain forest. Ecology, 89(10), pp.2924-2934.
Reed, S.C., Cleveland, C.C. and Townsend, A.R., 2007. Controls over leaf litter and soil nitrogen fixation in two lowland tropical rain forests. Biotropica, 39(5), pp.585-592.
Schmidt, S.K., Costello, E.K., Nemergut, D.R., Cleveland, C.C., Reed, S.C., Weintraub, M.N., Meyer, A.F. and Martin, A.M., 2007. Biogeochemical consequences of rapid microbial turnover and seasonal succession in soil. Ecology, 88(6), pp.1379-1385.
Reed, S.C., Seastedt, T.R., Mann, C.M., Suding, K.N., Townsend, A.R. and Cherwin, K.L., 2007. Phosphorus fertilization stimulates nitrogen fixation and increases inorganic nitrogen concentrations in a restored prairie. Applied Soil Ecology, 36(2), pp.238-242.
Cleveland, C.C., Reed, S.C. and Townsend, A.R., 2006. Nutrient regulation of organic matter decomposition in a tropical rain forest. Ecology, 87(2), pp.492-503.
Bowker, M.A., Reed, S.C., Belnap, J. and Phillips, S.L., 2002. Temporal variation in community composition, pigmentation, and Fv/Fm of desert cyanobacterial soil crusts. Microbial Ecology, 43(1), pp.13-25.
Reed, S.C., Capitosti, G.J., Zhu, Z. and Modarelli, D.A., 2001. Photochemical generation and matrix-isolation detection of dimethylvinylidene. The Journal of Organic Chemistry, 66(1), pp.287-299.
Reed, S.C. and Modarelli, D.A., 1996. Conformational effects on the excited state 1, 2-hydrogen migration in alkyldiazomethanes. Tetrahedron Letters, 37(40), pp.7209-7212.

**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.

Predicting when the grass is greener: new phenological forecasts for invasive annual grasses

Predicting when the grass is greener: new phenological forecasts for invasive annual grasses

Two major hurdles in the effective control of invasive grasses are: (1) Anticipating the timing of key stages that are susceptible to management...

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A global study reveals a surprise: The driest places have the highest diversity of plant traits

A global study reveals a surprise: The driest places have the highest diversity of plant traits

Common ecological knowledge holds that areas with more rain, like rainforests, house higher plant diversity than drylands. However, a new global study...

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SBSC’s restoration research featured in the 2023 National Academies of Sciences, Engineering, and Medicine report

SBSC’s restoration research featured in the 2023 National Academies of Sciences, Engineering, and Medicine report

The National Academies of Sciences, Engineering, and Medicine (NASEM) released their 2023 “Assessment of Native Seeds Needs and the Capacity for Their...

Read Article
Exploring the Role of Cryptic Nitrogen Fixers in Terrestrial Ecosystems

Exploring the Role of Cryptic Nitrogen Fixers in Terrestrial Ecosystems

Biological nitrogen fixation—the conversion of inert atmospheric nitrogen gas into biologically available nitrogen - is critical for supporting both...

Read Article
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