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United States Department of Agriculture

Agricultural Research Service

Thomas A. Monaco

Res Ecologist


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Should ranchers value sagebrush? Why we need sagebrush - (Other)
Burritt, B., Monaco, T.A., Thacker, E. 2014. Should ranchers value sagebrush? Why we need sagebrush. Technical Report.
Large-scale downy brome treatments alter plant-soil relationships and promote perennial grasses in salt desert shrublands - (Peer Reviewed Journal)
Hirsch, M.C., Monaco, T.A., Call, C.A., Sheley, R.L. 2014. Large-scale downy brome treatments alter plant-soil relationships and promote perennial grasses in salt desert shrublands. Rangeland Ecology and Management. 67:255-265.
Ecological adaptation of Shepherdia rotundifolia to conditions in its native range - (Abstract Only)
Kjelgren, R., Kratsch, H., Larson, S.R., Monaco, T.A. 2014. Ecological adaptation of Shepherdia rotundifolia to conditions in its native range. Western North American Naturalist. 74:79-91.
Running head: traits of native and invasive plants - (Peer Reviewed Journal)
Leffler, A.J., James, J.J., Monaco, T.A., Sheley, R.L. 2014. Running head: traits of native and invasive plants. Ecology. 95:298-305.
Biomass and defoliation tolerance of 12 populations of Pseudoroegneria spicata at two densities - (Peer Reviewed Journal)
Mukherjee, J.R., Jones, T.A., Monaco, T.A. 2013. Biomass and defoliation tolerance of 12 populations of Pseudoroegneria spicata at two densities. Rangeland Ecology and Management. 66:706-713.
Land-use legacies of cultivation in sagebrush ecosystems affect soil nutrients and plant growth nearly a century after cultivation - (Peer Reviewed Journal)
Morris, L.R., Monaco, T.A., Blank, R.R., Leger, E., Sheley, R.L. 2013. Land-use legacies of cultivation in sagebrush ecosystems affect soil nutrients and plant growth nearly a century after cultivation. Plant Ecology. 214:831-844.
Impact of cultivation legacies on rehabilitation seedings and native species re-establishment in Great Basin desert shrublands - (Peer Reviewed Journal)
Morris, L.R., Monaco, T.A., Sheley, R.L. 2014. Impact of cultivation legacies on rehabilitation seedings and native species re-establishment in Great Basin desert shrublands. Rangeland Ecology and Management. 67:285-291.
Long-term redevelopment of resource islands in shrublands of the Great Basin, USA - (Peer Reviewed Journal)
Morris, L.R., Monaco, T.A., Blank, R.R., Sheley, R.L. 2013. Long-term redevelopment of resource islands in shrublands of the Great Basin, USA. Ecosphere. 4:12.
Repairing ecological processes to direct ecosystem state changes - (Peer Reviewed Journal)
Monaco, T.A., Call, C.A., Hirsch, M.C., Fowers, B. 2012. Repairing ecological processes to direct ecosystem state changes. Rangelands. 32:23-26.
Assessing the past: the importance of cultivation history in EBIPM success - (Peer Reviewed Journal)
Morris, L.R., Monaco, T.A. 2012. Assessing the past: the importance of cultivation history in EBIPM success. Rangelands. 34:19-22.
Identifying rangeland restoration targets: an appraisal of challenges and opportunities - (Peer Reviewed Journal)
Monaco, T.A., Jones, T.A., Thurow, T.L. 2012. Identifying rangeland restoration targets: an appraisal of challenges and opportunities. Rangeland Ecology and Management. 65:599-605.
Differences in nitrogen uptake capacity between native and invasive grasses is dependent on temperature - (Peer Reviewed Journal)
Monaco, T.A., Leffler, A.J., James, J.J. 2012. Differences in nitrogen uptake capacity between native and invasive grasses is dependent on temperature. Oecologia. DOI:10.1007/s00442-012-2399-4.
Field trip overview: habitat loss and plant invasions in northern Utah's Basin and Range - (Proceedings)
Williams, J.R., Connors, K.J., Monaco, T.A. 2012. Field trip overview: habitat loss and plant invasions in northern Utah's Basin and Range. Wildland Shrub Symposium Proceedings. NREI:17:30.
Invasive plant ecology and management: Linking processes to practice - (Book / Chapter)
Monaco, T.A., Sheley, R.L. 2012. In: Monaco, T.A. and Sheley, R.L. (eds.) Invasive plant ecology and management: Linking processes to practice. CABI Publishing: Wallingford, UK. p. xi-xii.
Comparison of herbicides for reducing annual grass emergence in two great basin soils - (Peer Reviewed Journal)
Hirsch, M.C., Monaco, T.A., Call, C.A., Ransom, C.V. 2012. Comparison of herbicides for reducing annual grass emergence in two great basin soils. Rangel Ecol Manage. 65:66-75.
Integrating cultivation history into EBIPM - (Abstract Only)
Morris, L.R., Monaco, T.A. 2011. Integrating cultivation history into EBIPM. Eastern Oregon Agricultural Research Center. 32 p.
Morphological and physiological traits account for similar nitrate uptake by crested wheatgrass and cheatgrass - (Proceedings)
Leffler, A.J., Monaco, T.A., James, J.J. 2011. Morphological and physiological traits account for similar nitrate uptake by crested wheatgrass and cheatgrass. Wildland Shrub Symposium Proceedings. XVII.
Ecotypic variation in Elymus elymoides ssp. Brevifolius race C in the northern Intermountain West - (Peer Reviewed Journal)
Parsons, M.C., Jones, T.A., Larson, S.R., Mott, I.W., Monaco, T.A. 2011. Ecotypic variation in Elymus elymoides ssp. Brevifolius race C in the northern Intermountain West. Rangeland Ecology and Management. 64:649-658.
Process-based management approaches for salt desert shrublands dominated by downy brome - (Proceedings)
Hirsch, M.C., Monaco, T.A. 2011. Process-based management approaches for salt desert shrublands dominated by downy brome. Wildland Shrub Symposium Proceedings. XVII.
Land-use legacies and recovery from dry farming in sagebrush ecosystems of the Great Basin, USA - (Peer Reviewed Journal)
Morris, L.R., Monaco, T.A., Sheley, R.L. 2011. Land-use legacies and recovery from dry farming in sagebrush ecosystems of the Great Basin, USA. Ecological Applications. DOI: 10.2111/REM-D-10-00147.1.
Nitrogen acquisition by annual and perennial grass seedlings: testing the roles of performance and plasticity to explain plant invasion - (Peer Reviewed Journal)
Leffler, A.J., Monaco, T.A., James, J.J. 2011. Nitrogen acquisition by annual and perennial grass seedlings: testing the roles of performance and plasticity to explain plant invasion. Plant Ecology. DOI: 10.1007/s11258-011-933-z.
Linking plant spatitial patterns and ecological processes in grazed Great Basin plant communities - (Peer Reviewed Journal)
Rayburn, A.P., Monaco, T.A. 2011. Linking plant spatitial patterns and ecological processes in grazed Great Basin plant communities. Rangeland Ecology and Management 64:276-282.
Implementing ecologically based invasive plant management: Lessons from a century of demonstration projects in Park Valley, Utah - (Peer Reviewed Journal)
Morris, L.R., Monaco, T.A., Call, C.A., Sheley, R.L., Ralphs, M.H. 2011. Implementing ecologically based invasive plant management: Lessons from a century of demonstration projects in Park Valley, Utah. Rangelands. 33(2):2-9.
Land-use legacies from dry farming in the Park Valley area of Box Elder County - (Other)
Morris, L., Monaco, T.A. 2010. Land-use legacies from dry farming in the Park Valley area of Box Elder County. Conservation Research Report. 1:1.
Drought tolerance in two perennial bunchgrasses used for restoration in the Intermountain West, U.S.A. - (Peer Reviewed Journal)
Mukherjee, J.R., Jones, T.A., Adler, P.B., Monaco, T.A. 2011. Drought tolerance in two perennial bunchgrasses used for restoration in the Intermountain West, U.S.A. Plant Ecology. 212:461-470.
Assessment of range planting as a conservation practice - (Book / Chapter)
Hardegree, S.P., T.A. Jones, B.A. Roundy, N.L. Shaw and T.A. Monaco. 2011. Assessment of range planting as a conservation practice. Chapter 4, In: Briske, D.D., editor. Conservation Benefits of Rangeland Practices: Assessment, Recommendations, and Knowledge Gaps. Lawrence, KS: Allen Press. p. 171-212.
Managing soil nitrogen to restore annual grass infested plant communities: an effective strategy or incomplete framework? Reprint Icon - (Peer Reviewed Journal)
James, J.J., Drenovsky, R.E., Monaco, T.A., Rinella, M.J. 2011. Managing soil nitrogen to restore annual grass infested plant communities: an effective strategy or incomplete framework? Ecological Applications. 21(2):490-502.
Adaptive Zones Based on Phenotypic Data for a Newly Recognized Subspecies of Bottlebrush Squirreltail - (Abstract Only)
Parsons, M.C., Jones, T.A., Larson, S.R., Monaco, T.A., Mott, I.W. 2010. Adaptive Zones Based on Phenotypic Data for a Newly Recognized Subspecies of Bottlebrush Squirreltail. Meeting Abstract.
Genetic variation for adaptive traits in Elymus elymoides ssp. brevifolius Race C in the Northern Intermountain West, USA - (Peer Reviewed Journal)
Parsons, M.C., Jones, T.A., Monaco, T.A. 2010. Genetic variation for adaptive traits in Elymus elymoides ssp. brevifolius Race C in the Northern Intermountain West, USA. Restoration Ecology. 19:460-469.
Drought tolerance in two perennial bunchgrasses used for restoration in the Intermountain West, USA - (Peer Reviewed Journal)
Mukherjee, J.R., Jones, T.A., Adler, P.B., Monaco, T.A. 2010. Drought tolerance in two perennial bunchgrasses used for restoration in the Intermountain West, USA. Plant Ecology.
Invasive Plants on Rangelands: a Global Threat Reprint Icon - (Trade Journal)
Vasquez, E., James, J., Monaco, T., Cummings, D.C. 2010. Invasive Plants on Rangelands: A Global Threat. Rangelands. 32:3-5.
Launching the Counterattack: Interdisciplinary Deployment of Functional Traits to Repair Damaged Intermountain Rangelands - (Peer Reviewed Journal)
Jones, T.A., Monaco, T.A., James, J.J. 2010. Launching the Counterattack: Interdisciplinary Deployment of Functional Traits to Repair Damaged Intermountain Rangelands. Rangelands. Vol 32, pages 32-37.
Immobilizing nitrogen to control plant invasion - (Peer Reviewed Journal)
Perry, L.G., Blumenthal, D.M., Monaco, T.A., Paschke, M.W., Redente, E.F. 2010. Immobilizing nitrogen to control plant invasion. Oecologia. 163:13-24.
Common Ground for Managing Invasive Annual Grasses - (Other)
Monaco, T.A. 2009. Common Ground for Managing Invasive Annual Grasses. Electronic Publication.
Land Use Legacies in the Park Valley Area of Box Elder County - (Popular Publication)
Morris, L., Monaco, T.A. 2009. Land Use Legacies in the Park Valley Area of Box Elder County. Popular Publication.
Nitrogen uptake: invasive annual vs. native perennial rangeland grasses - (Popular Publication)
Mackown, C.T., Jones, T.A., Johnson, D.A., Monaco, T.A., Redinbaugh, M.G. 2009. Nitrogen uptake: invasive annual vs. native perennial rangeland grasses. CSA News. 76(6):1864-1870.
Seedling Interference and Niche Differentiation Between Crested Wheatgrass and Contrasting Native Great Basin Species - (Peer Reviewed Journal)
Gunnell, K.L., Monaco, T.A., Call, C.A., Ransom, C.V. 2010. Seedling Interference and Niche Differentiation Between Crested Wheatgrass and Contrasting Native Great Basin Species. Rangeland Ecology and Management. 63:443-449.
Ecologically-Based Invasive Plant Management Field School Workbook 2009 - (Other)
Smith, B.S., Sheley, R.L., Boyd, C.S., Vasquez, E.A., James, J.J., Morris, L., Monaco, T.A., Svejcar, A.J. 2009. Ecologically-Based Invasive Plant Management Field School Workbook 2009. Eastern Oregon Agricultural Research Center.
Clarifying Potential Successional Trajectories in Sagebrush Communities Historically Seeded with Crested Wheatgrass - (Proceedings)
Gunnell, K.L., Williams, J.R., Monaco, T.A. 2011. Clarifying Potential Successional Trajectories in Sagebrush Communities Historically Seeded with Crested Wheatgrass. Wildland Shrub Symposium Proceedings. NRE1:Vol 16:17.
Morphological and Physiological Traits in the Success of the Invasive Plant Lespedeza Cuneata - (Peer Reviewed Journal)
Allred, B.W., Fuhlendorf, S.D., Monaco, T.A., Will, R.E. 2009. Morphological and Physiological Traits in the Success of the Invasive Plant Lespedeza Cuneata. Biological Invasions DOI 10.1007/s10530-009-9476-6.
Seeding Cool-Season Grasses to Suppress Broom Snakeweed (Gutierrezia sarothrae), Downy Brome (Bromus tectorum), and Weedy Forbs Reprint Icon - (Peer Reviewed Journal)
Thacker, E., Ralphs, M.H., Monaco, T.A. 2009. Seeding Cool-Season Grasses to Suppress Broom Snakeweed (Gutierrezia sarothrae), Downy Brome (Bromus tectorum), and Weedy Forbs. Journal of Invasive Plant Science and Management, 2:237-246.
Nitrogen uptake by perennial and invasive annual grass seedlings: Nitrogen form effects - (Peer Reviewed Journal)
Mackown, C.T., Jones, T.A., Johnson, D.A., Monaco, T.A., Redinbaugh, M.G. 2009. Nitrogen uptake by perennial and invasive annual grass seedlings: Nitrogen form effects. Soil Science Society of America Journal. 73:1864-1870.
A Role for Assisted Evolution in Designing Native Plant Materials for Domesticated Landscapes - (Peer Reviewed Journal)
Jones, T.A., Monaco, T.A. 2009. A Role for Assisted Evolution in Designing Native Plant Materials for Domesticated Landscapes. Frontiers in Ecology and the Environment. 7:541-547.
Variable Impacts of Imazapic on Downy Brome (Bromus Tectorum) and Seeded Species in Two Rangeland Communities - (Peer Reviewed Journal)
Morris, C., Monaco, T.A., Rigby, C.W. 2009. Variable Impacts of Imazapic on Downy Brome (Bromus Tectorum) and Seeded Species in Two Rangeland Communities. Journal of Invasive Plant Science and Management 2:110-119.
A Comparison of Inter- and Intraspecific Interference on Broom Snakeweed (Gutierrezia sarothrae) Seedling Growth - (Peer Reviewed Journal)
Thacker, E., Ralphs, M.H., Monaco, T.A. 2009. A Comparison of Inter- and Intraspecific Interference on Broom Snakeweed (Gutierrezia sarothrae) Seedling Growth. Journal of Invasive Plant Science and Management. 2(1):36-44. DOI 10.1614/PSM-08-099.1
Invasive rangeland plants in range and animal sciences and resources management - (Book / Chapter)
Mangold, J.M., Svejcar, A.J., Sheley, R.L., Monaco, T.A., Sosebee, R. 2008. Invasive rangeland plants in range and animal sciences and resources management. Encyclopedia of Life Support Systems.
Assessment of range planting as a conservation practice - (Abstract Only)
Hardegree, S.P., B.A. Roundy, N.L. Shaw., C.A. Moffet, T.A. Monaco, T.A. Jones and E.F. Redente. 2009. Assessment of range planting as a conservation practice. In: Abstracts of the 62nd Annual Meeting, Society for Range Management, Albuquerque, NM, Feb 8-12, 2009 (CD-ROM Abstract).
Multifunctional Grasslands in a Changing World - Volume 1 - (Book / Chapter)
Monaco, T.A., Leonard, E.D. 2008. Multifunctional Grasslands in a Changing World - Volume 1 - Edited by Organizing Committee of IGC/IRC Congress - Guangzhoui Guangdong Peoples Publishing House. Grasslands.
Does Disturbance Similarly Facilitate Weed Invasion Within Grass, Forb, and Shrub Plots? - (Book / Chapter)
Monaco, T.A., Leonard, E.D. 2008. Does Disturbance Similarly Facilitate Weed Invasion Within Grass, Forb, and Shrub Plots?. Grasslands.
Breeding Meadow Bromegrass for Forage Characteristics under a Linesource Irrigation Design - (Peer Reviewed Journal)
Jensen, K.B., Waldron, B.L., Robins, J.G., Monaco, T.A., Peel, M. 2008. Breeding Meadow Bromegrass for Forage Characteristics under a Linesource Irrigation Design. Can. J. Plant Sci. 88:695-703.
Forage Quality of Irrigated Pasture Species as Affected by Irrigation Rate - (Proceedings)
Jensen, K.B., Waldron, B.L., Peel, M., Robins, J.G., Monaco, T.A. 2007. Forage Quality of Irrigated Pasture Species as Affected by Irrigation Rate. Symposium Proceedings.
Invasion of Mediterranean Annual Grasses in Western North America Ecosystems: Kids in a Candy Store - (Peer Reviewed Journal) - (20-Jun-07)
Seeding cool-season grasses to suppress white locoweed (Oxytropis sericea) reestablishment and increase forage production - (Peer Reviewed Journal)
Ralphs, M.H., Monaco, T.A., Valdez, J.R., Graham, D. 2007. Seeding cool-season grasses to suppress white locoweed (Oxytropis sericea) reestablishment and increase forage production. Weed Technology. 21(3):661-669.
A Restoration Practitioner's Guide to the Restoration Gene Pool Concept - (Peer Reviewed Journal)
Jones, T.A., Monaco, T.A. 2007. A restoration practitioner's guide to the restoration gene pool concept. Ecological Restoration.
Integrating Weed Management and Restoration on Western Rangelands - (Peer Reviewed Journal)
Allcock, K., Nowak, R., Blank, R.R., Jones, T.A., Monaco, T.A., Chambers, J., Tausch, R., Doescher, P., Saytal, V., Tanaka, J., Ogle, D., St John, L., Pellant, M., Pyke, D.A., Schupp, E.W., Call, C.A. 2006. Integrating Weed Management and Restoration on Western Rangelands. Ecological Restoration. 24:199.
Ecologically Based Invasive Plant Management Newsletter - (Government Publication)
Ecologically Based Invasive Plant Management Newsletter - Editor: Anthony Svejcar/USDA-ARS-PWA/67826-A Hwy. 205/Burns, OR 97720
Does Functional Group Diversity in Shrub-Steppe Communities Reduce Invasion? - (Abstract Only)
Leonard, E.D., Monaco, T.A. 2006. Does functional group diversity in shrub-steppe communities reduce invasion?. Society for Range Management Meeting Abstracts.
Altering Plant-Successional Trajectories Following Wildfire in Sagebrush-Steppe Communities - (Abstract Only)
Monaco, T.A., Johnson, D.A., Norton, J.M., Leonard, E.D. 2005. Altering plant-successional trajectories following wildfire in sagebrush-steppe communities. ASA-CSSA-SSSA Annual Meeting Abstracts.
Morphological and Physiological Plasticity of Isatis Tinctoria: Responses to Contrasting Light, Soil-Nitrogen, and Water - (Peer Reviewed Journal)
Monaco, T.A., Johnson, D.A., Creech, J.E. 2005. Morphological and physiological plasticity of isatis tinctoria: responses to contrasting light, soil-nitrogen, and water. Weed Research 45:1-7.
Abiotic and Biotic Factors Influencing Seedbed and Seedling Establishment - (Abstract Only)
Monaco, T.A. 2005. Abiotic and biotic factors influencing seedbed and seedling establishment. Ecology and Management of Pinyon Juniper Communities Within The Interior W.
Ecological Significance of Drought Resistance in Pseudoroegneria Spicata and Elymus Elymoides - (Abstract Only)
Thygerson, T., Monaco, T.A. 2005. Ecological significance of drought resistance in pseudoroegneria spicata and elymus elymoides. Society of Range Management.
Implications of Functional Group Diversity in Shrub-Steppe Communities - (Abstract Only)
Leonard, E.D., Monaco, T.A. 2005. Implications of functional group diversity in shrub-steppe communities. Society of Range Management.
Coexistence of Native and Introduced Grasses Following Simultaneous Seeding - (Peer Reviewed Journal)
Waldron, B.L., Monaco, T.A., Jensen, K.B., Harrison, R.D., Palazzo, A.J., Kulbeth, J.B. 2005. Coexistence of Native and Introduced Grasses Following Simultaneous Seeding. Agronomy Journal 97:990-996
Medusahead (Taeniatherum Caput-Medusae) Control with Fall-and Spring-Applied Herbicides on Northern Utah Foothills - (Peer Reviewed Journal)
Monaco, T.A., Osmond, T.M., Dewey, S.A. 2005. Medusahead (taeniatherum caput-medusae) control with fall-and spring-applied herbicides on northern utah foothills. Weed Technology.
Gas Exchange and Water Relations of the Salt Deseret Shrub Kochia Prostrata - (Abstract Only)
Monaco, T.A., Waldron, B.L., Johnson, D.A. 2004. Gas exchange and water relations of the salt deseret shrub kochia prostrata. Wildland Shrub Symposium Abstracts.
Gas Exchanges and Chlorophyll Fluorescence Parameters of Fourteen Barley Lines in Response to Salinity - (Proceedings)
Monaco, T.A., Jiang, Q., Roche, D., Durham, S. 2004. Gas exchanges and chlorophyll fluorescence parameters of fourteen barley lines in response to salinity. Proceedings International Barley Genetics Symposium.
Registration of Toe Jam Creek Bottlebrush Squirreltail Germplasm - (Germplasm Release)
Jones, T. A., D. C. Nielson, S. R. Larson, D. A. Johnson, T. A. Monaco, S. L. Caicco, D. G. Ogle, S. A. Young, and J. R. Carlson. 2004. Registration of Toe Jam Creek bottlebrush squirreltail germplasm. Crop Sci. 44:1880-1881.
Registration of Fish Creek Bottlebrush Squirreltail Germplasm - (Germplasm Release)
Jones, T. A., D. C. Nielson, S. R. Larson, D. A. Johnson, T. A. Monaco, S. L. Caicco, D. G. Ogle, and S. A. Young. 2004. Registration of Fish Creek bottlebrush squirreltail germplasm. Crop Sci. 44:1879-1880.
Photosynthetic Responses of Corn and Four Weed Species Following Postemergence Treatments with Mesotrione and Atrazine - (Peer Reviewed Journal)
Creech, J.E., Monaco, T.A., Evans, J.O. 2004. Photosynthetic responses of corn and four weed species following postemergence treatments with mesotrione and atrazine. Weed Science.
Photosynthetic Responses of 15 Range Grasses to the Selective Herbicide Sulfosulfuron - (Peer Reviewed Journal)
Monaco, T.A. and J.E. Creech. 2004. Sulfosulfuron effects on growth and photosynthesis of 15 range grasses. Journal of Range Management 57:490-496.
Soil Morphology and Organic Matter Dynamics under Cheatgrass and Sagebrush-Steppe Plant Communities - (Proceedings)
Norton, J.B., T.A. Monaco, J.M. Norton, D.A. Johnson, and T.A. Jones. 2004. Soil morphology and organic matter dynamics under cheatgrass and sagebrush-steppe plant communities. Journal of Arid Environments 57: 445-466.
Effects of Nitrogen Form and Availability on Seed Germination and Early Seedling Growth in Invasive Annual and Desirable Perennial Grasses - (Peer Reviewed Journal)
Monaco, T.A., Mackown, C.T., Johnson, D.A., Jones, T.A., Norton, J.M., Norton, J.B., Redinbaugh, M.G. 2003. Effects of nitrogen form and availability on seed germination and early seedling growth in invasive annual and desirable perennial grasses. Journal of Range Management. 56:646-653.
Stress-Induced Metabolic Differences Between Populations and Subspecies of Artemisia Tridentata (Sagebrush) from a Single Hillside - (Peer Reviewed Journal) - (09-Mar-02)
Last Modified: 2/22/2010
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