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Recent Submissions

  • Exotic invasion of timberline vegetation, northern Rocky Mountains, USA 

    Weaver, Tad; Lichthardt, J.; Gustafson, D. (1990)
    Thirty-five exotic species were found in vegetation characteristic of Northern Rocky Mountain timberlines. At least 20 percent were intentionally introduced along road-sides. The diversity of invading exotics declined from ...
  • Seeing whitebark pine in a northern Rocky Mountain (USA) landscape: notes for a field trip 

    Weaver, Tad (1990)
    The changing role of whitebark pine (Pinus albicaulis) along an altitudinal gradient typical of the Northern Rocky Mountains (USA) can be seen from the gondolas at the "Big Sky" resort near Bozeman, MT. Whitebark pine ...
  • Berry production in three whitebark pine forest types 

    Weaver, Tad; Kendall, K.; Forcella, F. (1990)
    In the whitebark pine lwhortleberry (Pinus albicaulis/Vaccinium scoparium) habitat type of southwestern Montana, whortleberry plants produced seven to 69 berries I m• X yr in 1974. In subalpine fir (Abies lasiocarpa) habitat ...
  • Biotic and microsite factors affecting whitebark pine establishment 

    McCaughey, Ward W.; Weaver, Tad (1990)
    To enhance establishment of future whitebark pine (Pinus albicaulis) forests, information is needed on the physical and biological factors affecting whitebark seed germination and seedling establishment. This paper ...
  • Effects of temperature and temperature preconditioning on seedling performance of whitebark pine 

    Jacobs, J.; Weaver, Tad (1990)
    Four experiments explored the effects of temperature on the germination and seedling performance of whitebark pine (Pinus albicaulis). While 1 month of stratification increased germination from 5 percent to about 40 percent, ...
  • Stand development in whitebark pine woodlands 

    Weaver, Tad; Forcella, F.; Dale, D. (1990)
    Analysis of density data from stands in the Northern Rocky Mountains shows that, while seedlings establish at the rate of over 1,000 I ha x year in whitebark pine-grouse whortleberry (Pinus albicaulis-Vaccinium scoparium) ...
  • Climates of subalpine pine woodlands 

    Weaver, Tad (1990)
    The climate of whitebark pine (Pinus albicaulis) woodlands is generally cold (average daily maxima and minima in January are -2 and -11 °C, respectively) and snowy 1 to 3 m maximum pack) in winter and warm (July average ...
  • Whitebark pine community types and their patterns on the landscape 

    Arno, Stephen F.; Weaver, Tad (1990)
    Within whitebark pine's (Pinus albicaulis) relatively narrow zone of occurrence-the highest elevations of tree growth from California and Wyoming north to British Columbia and Alberta-this species is a member of diverse ...
  • Occurrence of Multiple Stems in Whitepark Pine 

    Weaver, Tad; Jacobs, J. (1990)
    Depending on the stand, Montana-Wyoming whitebark pines (Pinus albicaulis) may have multiple stems in 8 to 79 percent of the trees. The clumps had one to 11 stems with stand medians between two and three. Multiple stems ...
  • Reference Guide to Whitebark Pine 

    McCaughey, Ward W.; Weaver, Tad (1990)
    The purpose of this guide is to provide an easy access to literature about whitebark pine (Pinus albicaulis) for those managers and researchers who are concerned with this species. Because of the uniqueness of the species ...
  • Spectral Tales: Lessons Learned from Being Ghosted by Faculty 

    Owens, Tammi M.; Salsbury, Meghan; Blackburn, Heidi (2020-11)
    Imagine building a great online module or LibGuide only to have the collaborating faculty vanish after it is finished. Or designing an awesome student or faculty workshop as part of a campus-wide series only to have an ...
  • Greater Yellowstone climate assessment: past, present, and future climate change in greater Yellowstone watersheds 

    Hostetler, Steven; Whitlock, Cathy; Shuman, Bryan; Liefert, David; Drimal, Charles Wolf; Bischke, Scott (Montana State University, Institute on Ecosystems, 2021-06)
    The Greater Yellowstone Area (GYA) is one of the last remaining large and nearly intact temperate ecosystems on Earth (Reese 1984; NPSa undated). GYA was originally defined in the 1970s as the Greater Yellowstone Ecosystem, ...
  • Resetting Southern Tibet: The serious challenge of obtaining primary records of Paleoaltimetry 

    Quade, J.; Leary, R.; Dettinger, M. P.; Orme, Devon A. (2020-08)
    Over the last several decades a number of studies have attempted to reconstruct the rise of the Himalaya and Tibet since India-Asia collision began in the early Cenozoic, with rather contradictory results. Here, we evaluate ...
  • Water quality, nutrients, and stable isotopic signatures of particulates and vegetation in a mangrove ecosystem exposed to past anthropogenic perturbations 

    Valiela, Ivan; Juman, Rahanna; Asmath, Hamish; Hanacek, Daniella; Lloret, Javier; Elmstrom, Elizabeth; Chenoweth, Kelsey; Brookshire, E. N. Jack (2020-03)
    Water quality in mangrove estuaries within Caroni Swamp, Trinidad is impaired by a combination of recent increases in nitrogen loads and lingering effects of a series of reclamation efforts that reduced tidal exchanges and ...
  • Warm-Season Forage Options in Northern Dryland Regions 

    Carr, Patrick M.; Boss, Darrin L.; Chen, Chengci; Dafoe, Julia M.; Eberly, Jed O.; Fordyce, Simon; Hydner, Roger M.; Fryer, Heather K.; Lachowiec, Jennifer A.; Lamb, Peggy F.; McVay, Kent A.; Khan, Qasim A.; Miller, Perry R.; Miller, Zachariah J.; Torrion, Jessica A. (2020-06)
    Rotating summer fallow with wheat (Triticum spp.) is done in dryland grain farming at upper latitudes to stabilize yields over time and to prevent crop failure. However, summer fallow is costly since weeds must be controlled ...
  • Using extremal events to characterize noisy time series 

    Berry, Eric; Cummins, Bree; Nerem, Robert R.; Smith, Lauren M.; Haase, Steven B.; Gedeon, Tomas (2020-02)
    Experimental time series provide an informative window into the underlying dynamical system, and the timing of the extrema of a time series (or its derivative) contains information about its structure. However, the time ...
  • Estimates of regional annual abundance and population growth rates of white sharks off central California 

    Kanive, Paul E.; Rotella, Jay J.; Chapple, Taylor K.; Anderson, Scot D.; White, Timothy D.; Block, Barbara A.; Jorgensen, Salvador J. (2021-05)
    Determining population trends is critical for evaluating management actions and prioritizing species protections. In this study, we used empirical data to produce an estimate of the population trend for sub-adult and adult ...
  • Habitat Targets for Imperiled Grassland Birds in Northern Mixed-Grass Prairie 

    Pulliam, John P.; Somershoe, Scott; Sather, Marisa; McNew, Lance B. (2020-07)
    Grassland bird populations are declining faster than any other avian guild in North America, and promotion of favorable habitat conditions in rangeland breeding cores is important for their maintenance. There is much ...
  • Variation of Small-Strain Shear Modulus of Unsaturated Silt under Successive Cycles of Drying and Wetting 

    Khosravi, Ali; Hashemi, Amirhossein; Ghadirianniari, Sahar; Khosravi, Mohammad (2020-07)
    A new framework is developed to extend an existing small-strain shear modulus (𝐺max) model to determine 𝐺max of unsaturated silty soils along different paths of the soil water retention curve (SWRC) including the scanning ...
  • Evaluating the Use of Drones Equipped with Thermal Sensors as an Effective Method for Estimating Wildlife 

    Beaver, Jared T.; Baldwin, Robert W.; Messinger, Max; Newbolt, Chad H.; Ditchkoff, Stephen S.; Silman, Miles R. (2020)
    Drones equipped with thermal sensors have shown ability to overcome some of the limitations often associated with traditional human‐occupied aerial surveys (e.g., low detection, high operational cost, human safety risk). ...

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