Faculty Research and Publications: Recent submissions

  • Population ecology of vervet monkeys in a high latitude, semi-arid riparian woodland 
    Pasternak, Graham M.; Brown, Leslie R.; Kienzle, Stefan W.; Fuller, Andrea; Barrett, Louise; Henzi, Peter (South African National Parks, Suid-Afrikaanse Nasionale ParkeArts and ScienceDepartment of PsychologyDepartment of GeographyUniversity of LethbridgeUniversity of South AfricaUniversity of the Witwatersrand, 2013)
    Narrow riparian woodlands along non-perennial streams have made it possible for vervet monkeys to penetrate the semi-arid karoo ecosystem of South Africa, whilst artificial water points have more recently allowed these ...
  • Spatial variability mapping of crop residue using hyperion (EO-1) hyperspectral data 
    Bannari, Abderrazak; Staenz, Karl; Champagne, Catherine; Khurshi, K. Shahid (MDPI AGArts and ScienceDepartment of GeographyArabian Gulf UniversityUniversity of LethbridgeAgriculture and Agri-Food CanadaMeteorological Service of Canada, 2015)
    Soil management practices that maintain crop residue cover and reduce tillage improve soil structure, increase organic matter content in the soil, positively influence water infiltration, evaporation and soil temperature, ...
  • Where's the risk? : Landscape epidemiology of gastrointestinal parasitism in Alberta beef cattle 
    Beck, Melissa A.; Colwell, Douglas D.; Goater, Cameron P.; Kienzle, Stefan W. (Biomed Central LtdArts and ScienceDepartment of Biological SciencesDepartment of GeographyUniversity of LethbridgeLethbridge Research Centre, 2015)
    Background: Gastrointenstinal nematodes (GIN) present a serious challenge to the health and productivity of grazing stock around the globe. However, the epidemiology of GIN transmission remains poorly understood in northern ...
  • Impacts of forest fires and climate variability on the hydrology of an alpine medium sized catchment in the Canadian Rocky Mountains 
    Springer, Johanna; Ludwig, Ralf; Kienzle, Stefan W. (M D P I A GArts and ScienceDepartment of GeographyLudwig-Maximilians-Universitaet Muenchen (LMU)University of LethbridgeUniversity of South Africa, 2015)
    This study investigates the hydrology of Castle River in the southern Canadian Rocky Mountains. Temperature and precipitation data are analyzed regarding a climate trend between 1960 and 2010 and a general warming is ...
  • Slope estimation from ICESat/GLAS 
    Mahoney, Craig; Kljun, Natascha; Los, Sietse O.; Chasmer, Laura; Hacker, Jorg M.; Hopkinson, Christopher; North, Peter R. J.; Rosette, Jacqueline A. B.; van Gorsel, Eva (M D P I A GArts and ScienceDepartment of GeographySwansea UniversityLund UniversityUniversity of LethbridgeFlinders UniversityCommonwealth Scientific and Industrial Research Organization (Australia), 2014)
    We present a novel technique to infer ground slope angle from waveform LiDAR, known as the independent slope method (ISM). The technique is applied to large footprint waveforms ( 60 m mean diameter) from the Ice, Cloud ...
  • The livestock transition, peri-urban agricultural land use and urbanization in China 
    MacLachlan, Ian (Arts and ScienceDepartment of GeographyUniversity of Lethbridge, 2016-06-13)
    Rapid urbanization in China is embedded in a modernization process with profound implications for every aspect of its social development. Rising real incomes in urban areas have triggered a sea change in Chinese meat ...
  • Magnetostratigraphy of late neogene glacial, interglacial, and preglacial sediments in the Saskatoon and Regina areas, Saskatchewan, Canada 
    Barendregt, René W.; Enkin, Randolph J.; Tessler, Dez L. (Institute of Geophysics of the ASCRArts and ScienceDepartment of GeographyGeological Survey of CanadaUniversity of Lethbridgehttps://doi.org/10.1007/s11200-011-9019-3, 2012)
    Two new records of glacial stratigraphy obtained from borecores collected in southcentral Saskatchewan are compared to previously published records from Wellsch Valley and Swift Current Creek in southern Saskatchewan. ...
  • Mineralogy and chemistry of late pliocene-early pleistocene palesols on Mount Kenya: weathering indices of relative age and paleoenvironmental reconstruction 
    Mahaney, W.C.; Hamilton, T.S.; Barendregt, René W.; Hancock, R.G.V.; Costa, P. (ElsevierArts and ScienceDepartment of GeographyYork UniversityCamosun CollegeMcMaster UniversityUniversity of LisbonDundee UniversityUniversity of Lethbridgehttps://doi.org/10.1016/j.geomorph.2013.08.006, 2014)
    Iron and Al extracts as weathering indices in paleosols have been used in many localities to determine relative age, transformation of total chemical element concentrations to secondary forms, translocation of ...
  • Provenance and deposition of glacial Lake Missoula lacustrine and flood sediments determined from rock magnetic properties 
    Hanson, Michelle A.; Enkin, Randolph J.; Barendregt, René W.; Clague, John J. (ElsevierArts and ScienceDepartment of GeographySaskatchewan Geological SurveyGeological Survey of CanadaUniversity of LethbridgeSimon Fraser Universityhttps://doi.org/10.1016/j.yqres.2014.09.005, 2015)
    Repeated outburst flooding from glacial LakeMissoula,Montana, affected large areas of Washington duringMarine Oxygen Isotope Stage 2 (29–14 ka).We present the first high-resolution rock magnetic results from two sites ...
  • Pliocene and pleistocene volcanic interaction with cordilleran ice sheets, damming of the Yukon River and vertebrate palaeontology, Fort Selkirk volcanic group, west-central Yukon, Canada 
    Jackson, L.E.; Nelson, F.E.; Huscroft, C.A.; Villeneuve, M.; Barendregt, René W.; Storer, J.E.; Ward, B.C. (ElsevierArts and ScienceDepartment of GeographyGeological Survey of CanadaUniversity of LethbridgeThompson Rivers UniversitySimon Fraser Universityhttps://doi.org/10.1016/j.quaint.2011.08.033, 2012)
    Neogene volcanism in the Fort Selkirk area began with eruptions in the Wolverine Creek basin ca. 4.3 Ma and persisted to ca. 3.0 Ma filling the ancestral Yukon River valley with at least 40 m of lava flows. Activity at ...
  • Recent investigations of the 0-5 geomagnetic field recorded by lava flows 
    Johnson, Catherine L.; Constable, Catherine G.; Tauxe, Lisa; Barendregt, René W.; Brown, Laurie L.; Coe, Rob; Gans, Phil; Layer, Paul; Mejia, Vicky; Opdyke, Neil D.; Singer, Brad; Staudigel, Hubert; Stone, David (Arts and ScienceDepartment of GeographyUniversity of British ColumbiaScripps Institution of Oceanography, University of CaliforniaUniversity of LethbridgeUniversity of MassachussettsUniversity of California, Santa CruzUniversity of California, Santa BarbaraUniversity of AlaskaUniversity of FloridaUniversity of Wisconsin, 2015-06-12)
    We present a synthesis of paleomagnetic directional data collected from 873 lava flows at 17 different locations under the collaborative Time Averaged geomagnetic Field Initiative (TAFI). The data range from 05 Ma in ...
  • An extensive late Cenozoic terrestrial record of multiple glaciations preserved in the Tintina Trench of west-central Yukon: stratigraphy, paleomagnetism, palesols, and pollen 
    Duk-Rodkin, Alejandra; Barendregt, René W.; White, James M (NRC Research PressArts and ScienceDepartment of GeographyUniversity of LethbridgeGeological Survey of Canada, 2010)
    The Tintina Trench in west-central Yukon is a late Miocene graben formed along the antecedent early Tertiary Tintina fault. Since its formation the trench has served as a sediment trap for alluvial and glacial deposits. ...
  • Changing livestock geographies and global meat consumption: what are the implications 
    MacLachlan, Ian (University of LethbridgeArts and ScienceDepartment of GeographyUniversity of Lethbridge, 2014)
    Examines the local livestock industry and the effects of current global meat consumption trends on Canada’s economy
  • Timescale dependence of aeolian sand flux observations under atmospheric turbulence 
    Martin, Raleigh L.; Barchyn, Thomas E.; Hugenholtz, Chris H.; Jerolmack, Douglas J. (American Geophysical UnionArts and ScienceDepartment of GeographyUniversity of Lethbridge, 2013-07-26)
    The transport of sand in saltation is driven by the persistently unsteady stresses exerted by turbulent winds. Based on coupled high-frequency observations of wind velocity and sand flux on a desert dune during intermittent ...
  • Geomorphological mapping with a small unmanned aircraft system (sUAS): feature detection and accuracy assessment of a photogrammetrically-derived digital terrain model 
    Hugenholtz, Chris H.; Whitehead, Ken; Brown, Owen W.; Barchyn, Thomas E.; Moorman, Brian J.; LeClair, Adam; Riddell, Kevin D. A.; Hamilton, Tayler K. (ElsevierArts and ScienceDepartment of GeographyUniversity of Lethbridgehttps://doi.org/10.1016/j.geomorph.2013.03.023, 2013)
    Small unmanned aircraft systems (sUAS) are a relatively new type of aerial platform for acquiring high-resolution remote sensing measurements of Earth surface processes and landforms. However, despite growing application ...
  • Laboratory and field performance of a laser particle counter for measuring aeolian sand transport 
    Hugenholtz, Chris H.; Barchyn, Thomas E. (Blackwell Publishing Ltd.Arts and ScienceDepartment of GeographyUniversity of Lethbridge, 2011-02-23)
    This paper reports the results of laboratory and field tests that evaluate the performance of a new laser particle counter for measuring aeolian sand transport. The Wenglor® model YH03PCT8 (Wenglor) consists of a laser ...
  • Successes of soil conservation in the Canadian Prairies highlighted by a historical decline in blowing dust 
    Fox, Thomas A.; Barchyn, Thomas E.; Hugenholtz, Chris H. (Institute of Physics PublishingArts and ScienceDepartment of GeographyUniversity of Lethbridge, 2012-01-18)
    Blowing dust from agricultural fields has serious health and economic effects, which can be mitigated by soil conservation techniques. However, it is difficult to isolate improved land management in downstream records of ...
  • Real barchan dune collisions and ejections 
    Hugenholtz, Chris H.; Barchyn, Thomas E. (Blackwell Publishing Ltd.Arts and ScienceDepartment of GeographyUniversity of Lethbridge, 2012-01-26)
    From high-resolution satellite imagery of barchan sand dunes, we provide geomorphological evidence of collisions that result in the ejection of a barchan from the wake of another barchan dune. Previous interpretations ...
  • Aeolian dune field geomorphology modulates the stabilization rate imposed by climate 
    Barchyn, Thomas E.; Hugenholtz, Chris H. (Blackwell Publishing Ltd.Arts and ScienceDepartment of GeographyUniversity of Lethbridge, 2012-06-14)
    The activity of inland aeolian dune fields is typically related to the external forcing imposed by climate: active (bare) dunes are associated with windy and/or arid settings, and inactive (vegetated) dunes are associated ...
  • Predicting vegetation-stabilized dune field morphology 
    Barchyn, Thomas E.; Hugenholtz, Chris H. (Blackwell Publishing Ltd.Arts and ScienceDepartment of GeographyUniversity of Lethbridge, 2012-09-12)
    The activity of inland aeolian dune fields is typically related to the external forcing imposed by climate: active (bare) dunes are associated with windy and/or arid settings, and inactive (vegetated) dunes are associated ...