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- Author:
- April Hulet, et al. ; Derek Tilley; Shaun Bushman; Charles Goebel; Jason Karl; Stephen Love; Mary Wolf; Show all 7 Authors
- Source:
- Rangelands 2022 pp. -
- ISSN:
- 0190-0528
- Subject:
- Artemisia; germplasm; habitats; rangeland restoration; rangelands; soil chemistry; steppes; weeds; wildlife; Intermountain West region
- Abstract:
- ... •Restoration practices employed in semiarid sagebrush steppe of the North American Intermountain West are typically based on objectives to restore habitat to mid- to late-seral plant communities.•Incorporating succession management techniques including representation from early seral community species in restoration plans and seed mixtures could bridge the temporal gap between disturbance and stab ...
- DOI:
- 10.1016/j.rala.2022.05.001
- https://doi.org/10.1016/j.rala.2022.05.001
- Author:
- April Hulet, et al. ; Sean Di Stéfano; Jason W. Karl; Michael C. Duniway; Robert Heinse; J.D. Wulfhorst; Show all 6 Authors
- Source:
- Rangelands 2021 v.43 no.6 pp. 211-221
- ISSN:
- 0190-0528
- Subject:
- adaptive management; climate; fossil fuels; oils; plant communities; private sector; public lands; rangelands; soil
- Abstract:
- ... • There are three general stages of a well's life on US public land: 1) the permitting process to drill, 2) active extraction of fossil fuel resource, and 3) plugging and abandonment of well.• There is no national standard for oil and gas reclamation in the United States similar to mining and therefore current reclamation practices and standards fail to achieve long-term effectiveness across the w ...
- DOI:
- 10.1016/j.rala.2021.10.004
- https://doi.org/10.1016/j.rala.2021.10.004
- Author:
- April Hulet, et al. ; Samuel S. Wozniak; Eva K. Strand; Timothy R. Johnson; Bruce A. Roundy; Kert Young; Show all 6 Authors
- Source:
- Ecosphere 2020 v.11 no.8 pp. e03226
- ISSN:
- 2150-8925
- Subject:
- Artemisia; Centrocercus urophasianus; Juniperus; Pinus; biomass; canopy; fire behavior; forbs; fuel loading; fuels (fire ecology); grasses; mastication; models; monitoring; pinyon-juniper; plant litter; shrubs; steppes; trees; understory; Intermountain West region; Utah
- Abstract:
- ... In the Intermountain West, land managers masticate pinyon pine (Pinus spp.) and juniper (Juniperus spp.) trees that have encroached sagebrush steppe communities to reduce canopy fuels, alter potential fire behavior, and promote growth of understory grasses, forbs, and shrubs. At three study sites in Utah, 45 sampling plots spanning a range of tree cover from 5% to 50% were masticated. We measured ...
- DOI:
- 10.1002/ecs2.3226
- https://doi.org/10.1002/ecs2.3226
- Author:
- April Hulet, et al. ; Kirk W. Davies; Jon D. Bates; Show all 3 Authors
- Source:
- Restoration ecology 2017 v.25 no.5 pp. 717-722
- ISSN:
- 1061-2971
- Subject:
- Artemisia tridentata; Artemisia tridentata subsp. vaseyana; Juniperus occidentalis; anthropogenic activities; conifers; fire regime; growing season; indigenous species; monitoring; prediction; shrubs; sowing; vegetation; wildfires; wildlife; North America
- Abstract:
- ... Restoration of shrubs is needed throughout the world because of altered fire regimes, anthropogenic disturbance, and overutilization. The native shrub mountain big sagebrush (Artemisia tridentata Nutt. ssp. vaseyana (Rydb.) Beetle) is a restoration priority because of its value to wildlife in western North America. One of the principal threats to mountain big sagebrush is encroachment by western j ...
- Handle:
- 10113/6788038
- DOI:
- 10.1111/rec.12505
- https://doi.org/10.1111/rec.12505
- Author:
- April Hulet, et al. ; Jonathan D. Bates; Kirk W. Davies; Richard F. Miller; Bruce Roundy; Show all 5 Authors
- Source:
- Rangeland ecology & management 2017 v.70 no.1 pp. 106-115
- ISSN:
- 1550-7424
- Subject:
- Artemisia tridentata subsp. wyomingensis; Centrocercus urophasianus; Juniperus occidentalis; Juniperus osteosperma; Pinus edulis; Pinus monophylla; basins; conifers; control methods; data collection; ecoregions; forbs; fuels (fire ecology); habitats; landscapes; pinyon-juniper; prescribed burning; rangelands; steppes; woodlands
- Abstract:
- ... Juniper and piñon coniferous woodlands have increased 2- to 10-fold in nine ecoregions spanning the Intermountain Region of the western United States. Control of piñon-juniper woodlands by mechanical treatments and prescribed fire are commonly applied to recover sagebrush steppe rangelands. Recently, the Sage Grouse Initiative has made conifer removal a major part of its program to reestablish sag ...
- DOI:
- 10.1016/j.rama.2016.04.004
- https://doi.org/10.1016/j.rama.2016.04.004
- Author:
- April Hulet, et al. ; Matthew Madsen; Karma Phillips; Jerry Staley; Kirk Davies; Show all 5 Authors
- Source:
- Native plants journal 2016 v.17 no.3 pp. 230-243
- ISSN:
- 1522-8339
- Subject:
- Artemisia tridentata subsp. wyomingensis; indigenous species; pellets; plant growth; planting depth; sandy loam soils; seed germination; seedling emergence; seedlings; silt loam soils; soil depth; soil water potential; sowing; swelling (materials)
- Abstract:
- ... Small or low-vigor species can be susceptible to being planted at depths that prevent seedling emergence. As an example, sagebrush (Artemisia spp. L. [Anthemideae]) seed is often prone to being planted at depths where the seedlings cannot emerge from the soil. We evaluated a potential solution to this problem that incorporates seed within an extruded pellet that is designed to enhance seedling eme ...
- Handle:
- 10113/6723255
- DOI:
- 10.3368/npj.17.3.230
- https://doi.org/10.3368/npj.17.3.230
- Author:
- April Hulet, et al. ; Kirk W. Davies; Chad S. Boyd; Jon D. Bates; Show all 4 Authors
- Source:
- International journal of wildland fire 2016 v.25 no.4 pp. 489-493
- ISSN:
- 1049-8001
- Subject:
- air; grazing; meristems; mortality; risk; temperature; thermocouples; vegetation; wildfires
- Abstract:
- ... A recent commentary by Smith et al. (2016) argues that our study (Davies et al. 2016) contained methodological errors and lacked data necessary to support our conclusions, in particular that winter grazing may reduce the probability of fire-induced mortality of bunchgrasses. Carefully reading Davies et al. (2016) and relevant literature provides strong evidence that the comments of Smith et al. ar ...
- Handle:
- 10113/62583
- DOI:
- 10.1071/WF15209
- https://doi.org/10.1071/WF15209
- Author:
- April Hulet, et al. ; Kirk W. Davies; Chad S. Boyd; Jon D. Bates; Show all 4 Authors
- Source:
- International journal of wildland fire 2016 v.25 no.2 pp. 191-199
- ISSN:
- 1049-8001
- Subject:
- Artemisia tridentata subsp. wyomingensis; burning; cattle; climate change; fire intensity; fuels (fire ecology); grazing; heat; mortality; rangelands; risk; risk reduction; temperature; wildfires; winter; Oregon
- Abstract:
- ... An increase in mega-fires and wildfires is a global issue that is expected to become worse with climate change. Fuel treatments are often recommended to moderate behaviour and decrease severity of wildfires; however, the extensive nature of rangelands limits the use of many treatments. Dormant-season grazing has been suggested as a rangeland fuel treatment, but its effects on fire characteristics ...
- Handle:
- 10113/61906
- DOI:
- 10.1071/WF15055
- https://doi.org/10.1071/WF15055
- Author:
- April Hulet, et al. ; Chad S. Boyd; Kirk W. Davies; Show all 3 Authors
- Source:
- International journal of wildland fire 2015 v.24 no.4 pp. 527-533
- ISSN:
- 1049-8001
- Subject:
- grasses; shrubs; models; wildfires; color; Artemisia tridentata; stand basal area; soil color; mortality; prediction; Oregon
- Abstract:
- ... Maintenance and post-fire rehabilitation of perennial bunchgrasses is important for reducing the spread of exotic annual grass species in big sagebrush plant communities. Post-fire rehabilitation decisions are hampered by a lack of tools for determining extent of fire-induced perennial grass mortality. Our objective was to correlate post-fire characteristics with perennial bunchgrass mortality at ...
- DOI:
- 10.1071/WF14132
- https://doi.org/10.1071/WF14132
- Author:
- April Hulet, et al. ; Jonathan D. Bates; Kirk W. Davies; Richard F. Miller; Bruce Roundy; Show all 5 Authors
- Source:
- Rangeland ecology & management 2017 v.70 no.1 pp. 106-115
- ISSN:
- 1551-5028
- Subject:
- Artemisia tridentata subsp. wyomingensis; Centrocercus urophasianus; Juniperus occidentalis; Juniperus osteosperma; Pinus edulis; Pinus monophylla; annuals; basins; conifers; control methods; data collection; ecoregions; forbs; fuels; groceries; habitats; landscapes; mechanical methods; perennials; prescribed burning; rangelands; steppes; woodlands; Colorado
- Abstract:
- ... Juniper and piñon coniferous woodlands have increased 2- to 10-fold in nine ecoregions spanning the Intermountain Region of the western United States. Control of piñon-juniper woodlands by mechanical treatments and prescribed fire are commonly applied to recover sagebrush steppe rangelands. Recently, the Sage Grouse Initiative has made conifer removal a major part of its program to reestablish sag ...
- Author:
- April Hulet, et al. ; Chad S. Boyd; Kirk W. Davies; Tony J. Svejcar; Show all 4 Authors
- Source:
- Rangeland ecology & management 2015 v.68 no.6 pp. 437-444
- ISSN:
- 1550-7424
- Subject:
- Artemisia tridentata subsp. wyomingensis; annuals; fire resistance; fuels (fire ecology); grasses; introduced plants; invasive species; models; mortality; perennials; range management; rangelands; research; sowing; wildfires
- Abstract:
- ... Western rangelands are currently under severe threat from exotic annual grasses. To successfully manage rangelands that are either infested with or susceptible to exotic annual grasses, we must focus on increasing resilience to disturbance and resistance to exotic annual grass invasion. Here, we present a fuel-based model and research framework for Wyoming big sagebrush (Artemisia tridentata ssp. ...
- Handle:
- 10113/61910
- DOI:
- 10.1016/j.rama.2015.08.001
- https://doi.org/10.1016/j.rama.2015.08.001
- Author:
- April Hulet, et al. ; Rachel E. Williams; Bruce A. Roundy; Richard F. Miller; Robin J. Tausch; Jeanne C. Chambers; Jeffrey Matthews; Robert Schooley; Dennis Eggett; Show all 9 Authors
- Source:
- Rangeland ecology & management 2017 v.70 no.6 pp. 759-773
- ISSN:
- 1551-5028
- Subject:
- Artemisia tridentata; Bromus tectorum; Juniperus; Pinus; analysis of covariance; conifers; cutting; ecological resilience; ecological succession; ecosystems; grasses; mastication; mechanical methods; moieties; plant response; prescribed burning; shrubs; statistical models; trees; understory; vegetation cover; Western United States
- Abstract:
- ... In sagebrush (Artemisia tridentata Nutt.) ecosystems, expansion and infilling of conifers decreases the abundance of understory perennial vegetation and lowers ecosystem resilience and resistance of the once shrub grass—dominated state. We prescribed burned or cut juniper (Juniperus spp. L.) and pinyon (Pinus spp. L.) trees at 10 sites across the western United States. We measured vegetation cover ...
- Author:
- April Hulet, et al. ; Rachel E. Williams; Bruce A. Roundy; Richard F. Miller; Robin J. Tausch; Jeanne C. Chambers; Jeffrey Matthews; Robert Schooley; Dennis Eggett; Show all 9 Authors
- Source:
- Rangeland ecology & management 2017 v.70 no.6 pp. 759-773
- ISSN:
- 1550-7424
- Subject:
- Artemisia tridentata; Bromus tectorum; Juniperus; Pinus; analysis of covariance; conifers; cutting; ecological resilience; ecological succession; ecosystems; grasses; mastication; plant response; prescribed burning; shrubs; statistical models; trees; understory; vegetation cover; Western United States
- Abstract:
- ... In sagebrush (Artemisia tridentata Nutt.) ecosystems, expansion and infilling of conifers decreases the abundance of understory perennial vegetation and lowers ecosystem resilience and resistance of the once shrub grass−dominated state. We prescribed burned or cut juniper (Juniperus spp. L.) and pinyon (Pinus spp. L.) trees at 10 sites across the western United States. We measured vegetation cover ...
- DOI:
- 10.1016/j.rama.2017.05.007
- https://doi.org/10.1016/j.rama.2017.05.007
- Author:
- April Hulet, et al. ; Bruce A. Roundy; Steven L. Petersen; Ryan R. Jensen; Stephen C. Bunting; Show all 5 Authors
- Source:
- Environmental management 2014 v.53 no.3 pp. 660-671
- ISSN:
- 0364-152X
- Subject:
- Artemisia; Juniperus; Pinus; cutting; ecosystems; fuel loading; fuels; image analysis; land cover; longevity; mastication; planning; prescribed burning; range management; rangelands; remote sensing; steppes; thematic maps; trees; woodlands; California; Nevada; Oregon; Utah
- Abstract:
- ... Mechanical and prescribed fire treatments are commonly used to reduce fuel loads and maintain or restore sagebrush steppe rangelands across the Great Basin where pinyon (Pinus) and juniper (Juniperus) trees are encroaching and infilling. Geospatial technologies, particularly remote sensing, could potentially be used in these ecosystems to (1) evaluate the longevity of fuel reduction treatments, (2 ...
- Handle:
- 10113/58792
- DOI:
- 10.1007/s00267-013-0227-1
- PubMed:
- 24402578
- https://doi.org/10.1007/s00267-013-0227-1
- Author:
- April Hulet, et al. ; Richard F. Miller; Jaime Ratchford; Bruce A. Roundy; Robin J. Tausch; Jeanne Chambers; Show all 6 Authors
- Source:
- Rangeland ecology & management 2014 v.67 no.5 pp. 468-481
- ISSN:
- 1550-7424
- Subject:
- Artemisia; Juniperus; Pinus monophylla; canopy; ecological invasion; environmental factors; forbs; grasses; growing season; indigenous species; invasive species; mechanical weed control; pinyon-juniper; plant communities; plant density; plant response; prescribed burning; seedlings; shrublands; soil crusts; species diversity; understory; vegetation cover; woodlands; Great Basin States
- Abstract:
- ... In response to the recent expansion of piñon and juniper woodlands into sagebrush-steppe communities in the northern Great Basin region, numerous conifer-removal projects have been implemented, primarily to release understory vegetation at sites having a wide range of environmental conditions. Responses to these treatments have varied from successful restoration of native plant communities to comp ...
- Handle:
- 10113/60849
- DOI:
- 10.2111/REM-D-13-00003.1
- https://doi.org/10.2111/REM-D-13-00003.1
- Author:
- April Hulet, et al. ; Bruce A. Roundy; Steven L. Petersen; Ryan R. Jensen; Stephen C. Bunting; Show all 5 Authors
- Source:
- Rangeland ecology & management 2014 v.67 no.3 pp. 318-327
- ISSN:
- 1550-7424
- Subject:
- Juniperus osteosperma; Pinus; correlation; ground vegetation; image analysis; land cover; land management; landscapes; models; monitoring; pinyon-juniper; plant communities; remote sensing; shrubs; trees; understory; woodlands; California; Nevada; Oregon; Utah
- Abstract:
- ... Numerous studies have been conducted that evaluate the utility of remote sensing for monitoring and assessing vegetation and ground cover to support land management decisions and complement ground measurements. However, few comparisons have been made that evaluate the utility of object-based image analysis (OBIA) to accurately classify a landscape where rule sets (models) have been developed at va ...
- DOI:
- 10.2111/REM-D-12-00154.1
- https://doi.org/10.2111/REM-D-12-00154.1
- Author:
- April Hulet, et al. ; Bruce A. Roundy; Steven L. Petersen; Stephen C. Bunting; Ryan R. Jensen; Darrell B. Roundy; Show all 6 Authors
- Source:
- Rangeland ecology & management 2014 v.67 no.5 pp. 563-572
- ISSN:
- 1550-7424
- Subject:
- Artemisia; Juniperus occidentalis; Juniperus osteosperma; Pinus monophylla; aboveground biomass; canopy; computer software; ecological invasion; image analysis; managers; monitoring; pinyon-juniper; rangelands; remote sensing; steppes; trees; vegetation cover; woodlands
- Abstract:
- ... With the encroachment of piñon (Pinus ssp.) and juniper (Juniperus ssp.) woodlands onto sagebrush steppe rangelands, there is an increasing interest in rapid, accurate, and inexpensive quantification methods to estimate tree canopy cover and aboveground biomass. The objectives of this study were 1) to evaluate the relationship and agreement of piñon and juniper (P-J) canopy cover estimates, using ...
- Handle:
- 10113/60842
- DOI:
- 10.2111/REM-D-13-00044.1
- https://doi.org/10.2111/REM-D-13-00044.1
- Author:
- April Hulet, et al. ; Jordan Bybee; Bruce A. Roundy; Kert R. Young; Darrell B. Roundy; Leann Crook; Zachary Aanderud; Dennis L. Eggett; Nathan L. Cline; Show all 9 Authors
- Source:
- Rangeland ecology & management 2016 v.69 no.3 pp. 224-234
- ISSN:
- 1550-7424
- Subject:
- Artemisia; Bromus tectorum; Juniperus; Pinus; annual weeds; covariance; cutting; fuels (fire ecology); shredding; shrubs; sowing; statistical models; steppes; trees; understory; wildfires; Utah
- Abstract:
- ... Piñon (Pinus spp.) and juniper (Juniperus spp.) expansion and infilling in sagebrush (Artemisia L.) steppe communities can lead to high-severity fire and annual weed dominance. To determine vegetation response to fuel reduction by tree mastication (shredding) or seeding and then shredding, we measured cover for shrub and herbaceous functional groups on shredded and adjacent untreated areas on 44 s ...
- DOI:
- 10.1016/j.rama.2016.01.007
- https://doi.org/10.1016/j.rama.2016.01.007
- Author:
- April Hulet, et al. ; Bruce A. Roundy; Steven L. Petersen; Ryan R. Jensen; Stephen C. Bunting; Show all 5 Authors
- Source:
- Photogrammetric engineering and remote sensing 2013 v.79 no.9 pp. 799-808
- ISSN:
- 0099-1112
- Subject:
- botanical composition; cameras; image analysis; land cover; managers; monitoring; pinyon-juniper; shrubs; steppes; thematic maps; trees; woodlands
- Abstract:
- ...
Land managers need to rapidly assess vegetation composition and bare ground to effectively evaluate and manage shrub steppe communities that have been encroached by pinyon and juniper trees. We used an object-based image analysis (OBIA) approach to estimate land cover classes found in pinyon-juniper woodlands, and evaluated the relationship between ground measurements and OBIA land cover mea ...
- DOI:
- 10.14358/PERS.79.9.799
- https://doi.org/10.14358/PERS.79.9.799
- Author:
- April Hulet, et al. ; Bruce A. Roundy; Kert Young; Nathan Cline; Richard F. Miller; Robin J. Tausch; Jeanne C. Chambers; Ben Rau; Show all 8 Authors
- Source:
- Rangeland ecology & management 2014 v.67 no.5 pp. 495-505
- ISSN:
- 1550-7424
- Subject:
- Artemisia; Bromus tectorum; Juniperus; Pinus monophylla; annuals; climate; cutting; ecological invasion; fuel loading; grasses; grasslands; invasive species; managers; pinyon-juniper; plant available water; prescribed burning; roots; shredding; shrubs; soil nutrients; soil temperature; soil water potential; spring; thermocouples; trees; understory
- Abstract:
- ... Managers reduce piñon (Pinus spp.) and juniper (Juniperus spp.) trees that are encroaching on sagebrush (Artemisia spp.) communities to lower fuel loads and increase cover of desirable understory species. All plant species in these communities depend on soil water held at &spigt; -1.5 MPa matric potential in the upper 0.3 m of soil for nutrient diffusion to roots and major growth in spring (resour ...
- Handle:
- 10113/60846
- DOI:
- 10.2111/REM-D-13-00022.1
- https://doi.org/10.2111/REM-D-13-00022.1