Showing 321 - 340 results of 461 for search '"western United States"', query time: 0.16s Refine Results
  1. 321

    Fuel layer specific pollutant emission factors for fire prone forest ecosystems of the western U.S. and Canada by Shawn P. Urbanski, Russell W. Long, Hannah Halliday, Emily N. Lincoln, Andrew Habel, Matthew S. Landis

    Published 2022-12-01
    “…Our study addresses this need with laboratory experiments measuring EFs for carbon dioxide (CO2), carbon monoxide (CO), methane (CH4), ethyne (C2H2), formaldehyde (H2CO), formic acid (CH2O2), hydrogen cyanide (HCN), fine particulate matter (PM2.5), nitric oxide (NO), nitrogen dioxide (NO2), sulfur dioxide (SO2), and total reduced sulfur (TRS) for the burning of individual fuel components from three forest ecosystems which account for a large share of wildfire burned area and emissions in the western United States and Canada - Douglas fir, ponderosa pine, and black spruce/jack pine.…”
    Get full text
    Article
  2. 322

    Do Vegetation Fuel Reduction Treatments Alter Forest Fire Severity and Carbon Stability in California Forests? by Kristofer L. Daum, Winslow D. Hansen, Jacob Gellman, Andrew J. Plantinga, Charles Jones, Anna T. Trugman

    Published 2024-03-01
    “…Abstract Forest fire frequency, extent, and severity have rapidly increased in recent decades across the western United States (US) due to climate change and suppression‐oriented wildfire management. …”
    Get full text
    Article
  3. 323

    Using conspecific broadcast for Willow Flycatcher restoration by Lynn N. Schofield, Helen L. Loffland, Rodney B. Siegel, Chris J. Stermer, Heather A. Mathewson

    Published 2018-06-01
    “…Willow Flycatcher (Empidonax traillii) populations have been in decline across the western United States for decades. California populations are especially vulnerable with fewer than 500 pairs remaining in the state. …”
    Get full text
    Article
  4. 324

    Rangeland Productivity Partitioned to Sub-Pixel Plant Functional Types by Nathaniel P. Robinson, Matthew O. Jones, Alvaro Moreno, Tyler A. Erickson, David E. Naugle, Brady W. Allred

    Published 2019-06-01
    “…We demonstrated the results of these methods on a set of representative rangeland sites across the western United States. Partitioning rangeland productivity to sub-pixel PFTs revealed new dynamics and insights to aid the sustainable management of rangelands.…”
    Get full text
    Article
  5. 325

    Current and future distribution of Eucalyptus globulus under changing climate in Ethiopia: implications for forest management by Gemechis B. Mosisa, Nega Tassie, Motuma Adula

    Published 2024-02-01
    “…It has naturalized non-native ranges in other parts of Australia, Europe, Africa, and the western United States. This study is the first of its kind in Ethiopia to model and map the spatiotemporal distribution of the species using species distribution models (SDMs). …”
    Get full text
    Article
  6. 326

    CRISPR-mediated knockout of cardinal and cinnabar eye pigmentation genes in the western tarnished plant bug by Chan C. Heu, Roni J. Gross, Kevin P. Le, Dannialle M. LeRoy, Baochan Fan, J. Joe Hull, Colin S. Brent, Jeffrey A. Fabrick

    Published 2022-03-01
    “…Abstract The western tarnished plant bug, Lygus hesperus, is a key hemipteran pest of numerous agricultural, horticultural, and industrial crops in the western United States and Mexico. A lack of genetic tools in L. hesperus hinders progress in functional genomics and in developing innovative pest control methods such as gene drive. …”
    Get full text
    Article
  7. 327

    Fire weather drives daily area burned and observations of fire behavior in mountain pine beetle affected landscapes by S J Hart, D L Preston

    Published 2020-01-01
    “…In the western United States, mountain pine beetles (MPBs) have caused tree mortality across 7% of the forested area over the past three decades, leading to concerns of increased fire activity in MPB-affected landscapes. …”
    Get full text
    Article
  8. 328

    Retrieval of Live Fuel Moisture Content Based on Multi-Source Remote Sensing Data and Ensemble Deep Learning Model by Jiangjian Xie, Tao Qi, Wanjun Hu, Huaguo Huang, Beibei Chen, Junguo Zhang

    Published 2022-09-01
    “…Measured LFMC data, MODIS, Landsat-8, Sentinel-1 remote sensing data and auxiliary data such as canopy height and land cover of the forest-fire-prone areas in the Western United States, were selected for our study, and the retrieval results of different models with different groups of remote sensing data were compared. …”
    Get full text
    Article
  9. 329

    Recurrent die-offs of adult coho salmon returning to spawn in Puget Sound lowland urban streams. by Nathaniel L Scholz, Mark S Myers, Sarah G McCarthy, Jana S Labenia, Jenifer K McIntyre, Gina M Ylitalo, Linda D Rhodes, Cathy A Laetz, Carla M Stehr, Barbara L French, Bill McMillan, Dean Wilson, Laura Reed, Katherine D Lynch, Steve Damm, Jay W Davis, Tracy K Collier

    Published 2011-01-01
    “…Stormwater may therefore place important constraints on efforts to conserve and recover coho populations in urban and urbanizing watersheds throughout the western United States.…”
    Get full text
    Article
  10. 330

    Combining resilience and resistance with threat‐based approaches for prioritizing management actions in sagebrush ecosystems by Jeanne C. Chambers, Jessi L. Brown, John B. Bradford, Kevin E. Doherty, Michele R. Crist, Daniel R. Schlaepfer, Alexandra K. Urza, Karen C. Short

    Published 2023-11-01
    “…Abstract The sagebrush biome is a dryland region in the western United States experiencing rapid transformations to novel ecological states. …”
    Get full text
    Article
  11. 331

    Spatial analysis of plague in California: niche modeling predictions of the current distribution and potential response to climate change by Tucker James R, Fritz Curtis L, Salkeld Daniel J, Holt Ashley C, Gong Peng

    Published 2009-06-01
    “…<p>Abstract</p> <p>Background</p> <p>Plague, caused by the bacterium <it>Yersinia pestis</it>, is a public and wildlife health concern in California and the western United States. This study explores the spatial characteristics of positive plague samples in California and tests Maxent, a machine-learning method that can be used to develop niche-based models from presence-only data, for mapping the potential distribution of plague foci. …”
    Get full text
    Article
  12. 332

    The threat of wildfire is unique to cannabis among agricultural sectors in California by Christopher Dillis, Van Butsic, Diana Moanga, Phoebe Parker‐Shames, Ariani Wartenberg, Theodore E. Grantham

    Published 2022-09-01
    “…Abstract At the intersection of climate change and rural development, wildfire has emerged as a threat to agriculture in the Western United States. This nexus is particularly problematic for the rapidly developing cannabis industry in California, which includes farms located outside of traditional agricultural zones and within landscapes potentially more prone to wildfire. …”
    Get full text
    Article
  13. 333

    Potential of Faba Bean (Vicia faba L.) for Dual-purpose Vegetable Production and Cover Cropping by Kyle Brasier, Jacob Knecht, Rebecca Munster, Hope Coulter, Amanda Potter, Elizabeth Enke, Aaron Fox, Elizabeth Mosqueda, Hossein Zakeri

    Published 2022-12-01
    “…Cover cropping has been strongly promoted, but few growers have realized the benefits of this practice due to challenges linked to economic returns and whole-system management. In the western United States, winter legumes including faba bean have the potential to add economic value while offering soil health benefits compared with fallow fields. …”
    Get full text
    Article
  14. 334

    Evaluating Predictive Models of Tree Foliar Moisture Content for Application to Multispectral UAS Data: A Laboratory Study by Lauren E. Lad, Wade T. Tinkham, Aaron M. Sparks, Alistair M. S. Smith

    Published 2023-12-01
    “…The climatic regions of the western United States are particularly at risk from increasing drought, fire, and pest interactions. …”
    Get full text
    Article
  15. 335

    Mammalian resistance to megafire in western U.S. woodland savannas by Kendall L. Calhoun, Benjamin R. Goldstein, Kaitlyn M. Gaynor, Alex McInturff, Leonel Solorio, Justin S. Brashares

    Published 2023-07-01
    “…Abstract Increasingly frequent megafires are dramatically altering landscapes and critical habitats around the world. Across the western United States, megafires have become an almost annual occurrence, but the implication of these fires for the conservation of native wildlife remains relatively unknown. …”
    Get full text
    Article
  16. 336

    Coccidioidomycosis in Northern Arizona: an Investigation of the Host, Pathogen, and Environment Using a Disease Triangle Approach by Heather L. Mead, Daniel R. Kollath, Marcus de Melo Teixeira, Chandler C. Roe, Carmel Plude, Nivedita Nandurkar, Chelsea Donohoo, Brettania L. W. O'Connor, Joel Terriquez, Paul Keim, Bridget M. Barker

    Published 2022-10-01
    “…Given recent climate modeling of the disease that predicts that cases will continue to increase throughout the region, and the evidence presented in this report, we propose that disease awareness outreach to clinicians throughout the western United States is crucial for improving patient outcomes, and further environmental sampling across the western U.S. is warranted. …”
    Get full text
    Article
  17. 337

    Temporal and elevation trends in rainfall erosivity on a 149 km2 watershed in a semi-arid region of the American Southwest by Mark A. Nearing, Carl L. Unkrich, Dave C. Goodrich, Mary H. Nichols, Tim O. Keefer

    Published 2015-06-01
    “…This is particularly true in mountainous regions such as are found over much of the western United States. The objective of this study was to identify temporal and elevation trends in rainfall erosivity on a 149 km2 (58 miles2) watershed in a semi-arid region of southeastern Arizona. …”
    Get full text
    Article
  18. 338
  19. 339

    Osteology of Galeamopus pabsti sp. nov. (Sauropoda: Diplodocidae), with implications for neurocentral closure timing, and the cervico-dorsal transition in diplodocids by Emanuel Tschopp, Octávio Mateus

    Published 2017-05-01
    “…The highest diversity is known from the Upper Jurassic Morrison Formation of the western United States: a recent review recognized 12 valid, named species, and possibly three additional, yet unnamed ones. …”
    Get full text
    Article
  20. 340

    Site Factors Related to Dry Farm Vegetable Productivity and Quality in the Willamette Valley of Oregon by Matthew Davis, Alexandra Stone, Andy Gallagher, Amy Garrett

    Published 2023-11-01
    “…Dry farming is garnering interest in the western United States because it allows farmers to produce crops despite a lack of access to irrigation or water rights or to eliminate the infrastructure, labor, and energy costs of irrigation systems. …”
    Get full text
    Article