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Natural Resources and Conservation Commons™
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Articles 421 - 450 of 1708
Full-Text Articles in Natural Resources and Conservation
Remotely Detected Plant Function In Two Midwestern Prairie Grassland Experiments Reveals Belowground Processes, J. Cavender-Bares, A. Schweiger, J. Gamon, H. Gholizadeh, K. Helzer, C. Lapadat, M. Madritch, P. Townsend, Z. Wang, S. Hobbie
Remotely Detected Plant Function In Two Midwestern Prairie Grassland Experiments Reveals Belowground Processes, J. Cavender-Bares, A. Schweiger, J. Gamon, H. Gholizadeh, K. Helzer, C. Lapadat, M. Madritch, P. Townsend, Z. Wang, S. Hobbie
School of Natural Resources: Faculty Publications
No abstract provided.
Motivations To Participate In Hunting And Angling: A Comparison Among Preferred Activities And State Of Residence, Matthew P. Hinrichs, Mark P. Vrtiska, Mark Pegg, Christopher J. Chizinski
Motivations To Participate In Hunting And Angling: A Comparison Among Preferred Activities And State Of Residence, Matthew P. Hinrichs, Mark P. Vrtiska, Mark Pegg, Christopher J. Chizinski
School of Natural Resources: Faculty Publications
Motivations for hunting and fishing extend beyond harvesting game and include social, psychological, emotional, and physical benefits. We used data from a web-based questionnaire to compare relationships between preferred hunting or fishing activity types, state of residence, and motivations of hunters and anglers across the central United States (U.S.). Exploratory factor analysis yielded four motivation factors: nature, social, food, and challenge. Differences in terms of state were negligible across all motivation factors (η2p < .01), indicating similarity across states. Nature (η2p = .01) and social (η2p < .01) factors were the first and …
Improving Soil Carbon Estimates By Linking Conceptual Pools Against Measurable Carbon Fractions In The Daycent Model Version 4.5, S.R.S. Dangal, C. Schwalm, M. A. Cavigelli, H. T. Gollany, V. L. Jin, J. Sanderman
Improving Soil Carbon Estimates By Linking Conceptual Pools Against Measurable Carbon Fractions In The Daycent Model Version 4.5, S.R.S. Dangal, C. Schwalm, M. A. Cavigelli, H. T. Gollany, V. L. Jin, J. Sanderman
School of Natural Resources: Faculty Publications
No abstract provided.
Assessing Quantitative Modelling Practices, Metamodelling, And Capability Confidence Of Biology Undergraduate Students, Joseph Dauer, Robert Mayes, Kent Rittschof, Bryon Gallant
Assessing Quantitative Modelling Practices, Metamodelling, And Capability Confidence Of Biology Undergraduate Students, Joseph Dauer, Robert Mayes, Kent Rittschof, Bryon Gallant
School of Natural Resources: Faculty Publications
Quantitative modelling plays an important role as biology increasingly deals with big data sets, relies on modelling to understand system dynamics, makes predictions about impacts of changes, and revises our understanding of system interactions. An assessment of quantitative modelling in biology was administered to students (n = 612) in undergraduate biology courses at two universities to provide a picture of student ability in quantitative reasoning within biology and to determine how capable those students felt about this ability. A Rasch analysis was used to construct linear measures and provide validity evidence for the assessment and to examine item statistics …
Learning Across Disciplines In Socio-Environmental Problem Framing, D. Pennington, R. Bonnstetter, E. Gehrig, R. Stokes
Learning Across Disciplines In Socio-Environmental Problem Framing, D. Pennington, R. Bonnstetter, E. Gehrig, R. Stokes
School of Natural Resources: Faculty Publications
No abstract provided.
Professional Competency Self-Efficacy Of Undergraduate Environmental Studies Students: A Case Study Of Gender Differences And Longitudinal Change, D. Gosselin, R. Bonnstetter, E. Gehrig, R. Stokes
Professional Competency Self-Efficacy Of Undergraduate Environmental Studies Students: A Case Study Of Gender Differences And Longitudinal Change, D. Gosselin, R. Bonnstetter, E. Gehrig, R. Stokes
School of Natural Resources: Faculty Publications
No abstract provided.
Resilience Through Climate Services, A.M.S. Ibarra, C. Hewitt, Y. T. Winarto, S. Walker, V. W. Keener, J. Bayala, I. Christel, H. Bloomfield, K. Halsnaes, T. Haigh, D. Jacob, G. P. Brasseur, B. Van Den Hurk
Resilience Through Climate Services, A.M.S. Ibarra, C. Hewitt, Y. T. Winarto, S. Walker, V. W. Keener, J. Bayala, I. Christel, H. Bloomfield, K. Halsnaes, T. Haigh, D. Jacob, G. P. Brasseur, B. Van Den Hurk
School of Natural Resources: Faculty Publications
No abstract provided.
Minimizing Trade-Offs For Sustainable Irrigation, S. Mcdermid, R. Mahmood, M. J. Hayes, J. Bell, Z. Lieberman
Minimizing Trade-Offs For Sustainable Irrigation, S. Mcdermid, R. Mahmood, M. J. Hayes, J. Bell, Z. Lieberman
School of Natural Resources: Faculty Publications
No abstract provided.
Impact Of Bank Stabilization Structures On Upstream And Downstream Bank Mobilization At Cedar River, Nebraska, M. Russell, A. Mittelstet, R. M. Joeckel, J. Korus, C. Castro Bolinaga
Impact Of Bank Stabilization Structures On Upstream And Downstream Bank Mobilization At Cedar River, Nebraska, M. Russell, A. Mittelstet, R. M. Joeckel, J. Korus, C. Castro Bolinaga
School of Natural Resources: Faculty Publications
No abstract provided.
Reconstruction Of Pre-Illinoian Ice Margins And Glaciotectonic Structures From Airborne Electromagnetic (Aem) Surveys At The Western Limit Of Laurentide Glaciation, Midcontinent U.S.A., Jesse T. Korus, Robert M. Joeckel, Jared D. Abraham, Anne-Sophie Høyer, Flemming Jørgensen
Reconstruction Of Pre-Illinoian Ice Margins And Glaciotectonic Structures From Airborne Electromagnetic (Aem) Surveys At The Western Limit Of Laurentide Glaciation, Midcontinent U.S.A., Jesse T. Korus, Robert M. Joeckel, Jared D. Abraham, Anne-Sophie Høyer, Flemming Jørgensen
School of Natural Resources: Faculty Publications
Early and early Middle Pleistocene glaciations in midcontinental USA are poorly understood relative to more recent Illinoian and Wisconsinan glaciations, largely because pre-Illinoian glacial landforms and deposits are eroded and buried. In this paper, we present a new interpretation of buried, pre-Illinoian glacial features along the Laurentide glacial margin in northeastern Nebraska using Airborne ElectroMagnetics (AEM) supplemented with borehole logs and 2m LiDAR elevation data. We detect and map large-scale (101–102 km) geological features using contrasts in electrical resistivity. The Laurentide glacial limit is marked by a continuous (>120 km) contrast between conductive (<15 Ω-m), clayey tills and resistive (>40 Ω-m) sandy sediments. Several …
Patterns In Spatial Use And Movement Of Silver Carp Among Tributaries And Main-Stem Rivers: Insight From Otolith Microchemistry Analysis, J. P. Werner, Q. J. Dean, M. A. Pegg, M. J. Hamel
Patterns In Spatial Use And Movement Of Silver Carp Among Tributaries And Main-Stem Rivers: Insight From Otolith Microchemistry Analysis, J. P. Werner, Q. J. Dean, M. A. Pegg, M. J. Hamel
School of Natural Resources: Faculty Publications
No abstract provided.
Juvenile Chinook Salmon Use Of Sandbar Willows In A Large-Scale, Simulated Riparian Floodplain: Microhabitat And Energetics, N. A. Fangue, D. E. Cocherell, F. Mauduit, J. Poletto, K. Carr, T. A. O'Rear, G. Soyster, S. Lorenzato, J. Carlon, M. L. Kavvas, Cech, J. Joseph Jr.
Juvenile Chinook Salmon Use Of Sandbar Willows In A Large-Scale, Simulated Riparian Floodplain: Microhabitat And Energetics, N. A. Fangue, D. E. Cocherell, F. Mauduit, J. Poletto, K. Carr, T. A. O'Rear, G. Soyster, S. Lorenzato, J. Carlon, M. L. Kavvas, Cech, J. Joseph Jr.
School of Natural Resources: Faculty Publications
No abstract provided.
Feeding Ecology Of Walia Ibex (Capra Walie) In Simien Mountains National Park, Ethiopia, D. Ejigu, A. Bekele, L. A. Powell
Feeding Ecology Of Walia Ibex (Capra Walie) In Simien Mountains National Park, Ethiopia, D. Ejigu, A. Bekele, L. A. Powell
School of Natural Resources: Faculty Publications
No abstract provided.
Simulated Atmospheric Response To Four Projected Land-Use Land-Cover Change Scenarios For 2050 In The North-Central United States, P. Flanagan, R. Mahmood, T. Sohl, M. Svoboda, B. Wardlow, M. J. Hayes, E. Rappin
Simulated Atmospheric Response To Four Projected Land-Use Land-Cover Change Scenarios For 2050 In The North-Central United States, P. Flanagan, R. Mahmood, T. Sohl, M. Svoboda, B. Wardlow, M. J. Hayes, E. Rappin
School of Natural Resources: Faculty Publications
No abstract provided.
Dynamic Landscapes In Northwestern North America Structured Populations Of Wolverines (Gulo Gulo), D. M. Krejsa, S. L. Talbot, S. Sonsthagen, T. S. Jung, A. J. Majoun, J. A. Cook
Dynamic Landscapes In Northwestern North America Structured Populations Of Wolverines (Gulo Gulo), D. M. Krejsa, S. L. Talbot, S. Sonsthagen, T. S. Jung, A. J. Majoun, J. A. Cook
School of Natural Resources: Faculty Publications
No abstract provided.
Assessment Of Dimension-Reduction And Grouping Methods For Catchment Response Time Estimation In Hungary, E. Nagy, J. Szilagyi, P. Torma
Assessment Of Dimension-Reduction And Grouping Methods For Catchment Response Time Estimation In Hungary, E. Nagy, J. Szilagyi, P. Torma
School of Natural Resources: Faculty Publications
No abstract provided.
Reply To Comment By S. Han And F. Tian On "A Calibration-Free Formulation Of The Complementary Relationship Of Evaporation For Continental-Scale Hydrology", J. Szilagyi, R. Crago, R. Qualls
Reply To Comment By S. Han And F. Tian On "A Calibration-Free Formulation Of The Complementary Relationship Of Evaporation For Continental-Scale Hydrology", J. Szilagyi, R. Crago, R. Qualls
School of Natural Resources: Faculty Publications
No abstract provided.
Calibration-Free Complementary Relationship Estimates Terrestrial Evapotranspiration Globally, N. Ma, J. Szilagyi, Y. Zhang
Calibration-Free Complementary Relationship Estimates Terrestrial Evapotranspiration Globally, N. Ma, J. Szilagyi, Y. Zhang
School of Natural Resources: Faculty Publications
No abstract provided.
Spatial And Temporal Trends And Variability Of Rainfall Using Long-Term Satellite Product Over The Upper Blue Nile Basin In Ethiopia, G. T. Ayehu, T. Tadesse, B. Gessesse
Spatial And Temporal Trends And Variability Of Rainfall Using Long-Term Satellite Product Over The Upper Blue Nile Basin In Ethiopia, G. T. Ayehu, T. Tadesse, B. Gessesse
School of Natural Resources: Faculty Publications
No abstract provided.
Combined Use Of Landsat 8 And Sentinel 2a Imagery For Improved Sugarcane Yield Estimation In Wonji-Shoa, Ethiopia, G. Abebe, T. Tadesse, B. G. Awoke
Combined Use Of Landsat 8 And Sentinel 2a Imagery For Improved Sugarcane Yield Estimation In Wonji-Shoa, Ethiopia, G. Abebe, T. Tadesse, B. G. Awoke
School of Natural Resources: Faculty Publications
No abstract provided.
Evaluating Student Attitudes And Learning At Remote Collegiate Soil Judging Events, R. Owen, A. Anderson, A. Bhandari, K. Clark, M. Davis, A. Dere, N. Jelinski, C. Moorberg, K. Osterloh, D. Presley, J. Turk, R. Young
Evaluating Student Attitudes And Learning At Remote Collegiate Soil Judging Events, R. Owen, A. Anderson, A. Bhandari, K. Clark, M. Davis, A. Dere, N. Jelinski, C. Moorberg, K. Osterloh, D. Presley, J. Turk, R. Young
School of Natural Resources: Faculty Publications
No abstract provided.
Manyclasses 1: Assessing The Generalizable Effect Of Immediate Feedback Versus Delayed Feedback Across Many College Classes, E.R. Fyfe, J. R. De Leeuw, P. F. Carvalho, R. L. Goldstone, J. Sherman, D. M. Admiraal, J. Turk Et Al.
Manyclasses 1: Assessing The Generalizable Effect Of Immediate Feedback Versus Delayed Feedback Across Many College Classes, E.R. Fyfe, J. R. De Leeuw, P. F. Carvalho, R. L. Goldstone, J. Sherman, D. M. Admiraal, J. Turk Et Al.
School of Natural Resources: Faculty Publications
No abstract provided.
Towards Routine Mapping Of Crop Emergence Within The Growing Season Using The Harmonized Landsat And Sentinel-2 Dataset, F. Gao, M. Anderson, D. Johnson, R. Seffren, B. Wardlow, A. Suyker, C. Diao, D. M. Browning
Towards Routine Mapping Of Crop Emergence Within The Growing Season Using The Harmonized Landsat And Sentinel-2 Dataset, F. Gao, M. Anderson, D. Johnson, R. Seffren, B. Wardlow, A. Suyker, C. Diao, D. M. Browning
School of Natural Resources: Faculty Publications
No abstract provided.
Tag Type And Location-Dependent Retention Impart Varied Levels Of Bias On Mark–Recapture Parameter Estimates, Douglas L. Zentner, Jonathan J. Spurgeon, Steve E. Lochmann, Christy L. Graham
Tag Type And Location-Dependent Retention Impart Varied Levels Of Bias On Mark–Recapture Parameter Estimates, Douglas L. Zentner, Jonathan J. Spurgeon, Steve E. Lochmann, Christy L. Graham
School of Natural Resources: Faculty Publications
Population parameter estimates from mark–recapture studies are dependent on individuals retaining marks or tags. Therefore, tag retention estimates are needed for different tag types and anatomical tagging locations. Few studies have empirically quantified the bias from tag retention on fish population parameters that are derived from mark–recapture studies. We examined differences in retention between T-bar anchor tags and PIT tags as well as among four anatomical locations for PIT tags in Brown Trout Salmo trutta in a tailwater fishery in Arkansas, USA. We also estimated the relative bias of tag type and PIT tag location on apparent survival estimates from …
Sarcocystis Neurona Transmission From Opossums To Marine Mammals In The Pacific Northwest, A. M. O'Byrne, D. M. Lambourn, D. Rejmanek, K. Haman, E. Vanwormer, K. Shapiro
Sarcocystis Neurona Transmission From Opossums To Marine Mammals In The Pacific Northwest, A. M. O'Byrne, D. M. Lambourn, D. Rejmanek, K. Haman, E. Vanwormer, K. Shapiro
School of Natural Resources: Faculty Publications
No abstract provided.
Aquatic Habitat Changes Within The Channelized And Impounded Arkansas River, Arkansas, Usa, Jonathan J. Spurgeon, Mike Rhodes, J. Wesley Neal, Kristine O. Evans
Aquatic Habitat Changes Within The Channelized And Impounded Arkansas River, Arkansas, Usa, Jonathan J. Spurgeon, Mike Rhodes, J. Wesley Neal, Kristine O. Evans
School of Natural Resources: Faculty Publications
River-wide changes in morphologic character following channelization and impoundment alter the occurrence and distribution of surface water and available habitats for aquatic organisms. Quantifying patterns of creation, redistribution or disappearance of habitats at river-wide and decadal spatiotemporal scales can promote understanding regarding trajectories of different habitat types following alteration and prospects of direct habitat enhancement projects within altered alluvial rivers. Newly available remote-sensing tools and databases may improve detection of river-wide changes in habitat through time. We used a combination of remote-sensing data and generalized linear models to assess changes in surface water coverage from 1984 to 2015 among aquatic …
Influence Of Tundra Polygon Type And Climate Variability On Co2 And Ch4 Fluxes Near Utqiagvik, Alaska, Sigrid Dengel, David Billesbach, Margaret S. Torn
Influence Of Tundra Polygon Type And Climate Variability On Co2 And Ch4 Fluxes Near Utqiagvik, Alaska, Sigrid Dengel, David Billesbach, Margaret S. Torn
School of Natural Resources: Faculty Publications
Arctic tundra has the potential to generate significant climate feedbacks, but spatial complexity makes it difficult to quantify the impacts of climate on ecosystem-atmosphere fluxes, particularly in polygonal tundra comprising wetter and drier polygon types on the scale of tens of meters. We measured CO2, CH4, and energy fluxes using eddy covariance for 7 yr (April to November, 2013–2019) in polygonal tundra near Utqiagvik, Alaska. This period saw the earliest snowmelt, latest snow accumulation, and hottest summer on record. To estimate fluxes by polygon type, we combined a polygon classification with a flux-footprint model. Methane fluxes …
Gas Exchange Measurements In The Unsteady State, Aaron J. Saathoff, Jonathan Mark Welles
Gas Exchange Measurements In The Unsteady State, Aaron J. Saathoff, Jonathan Mark Welles
School of Natural Resources: Faculty Publications
Leaf level gas exchange is a widely used technique that provides real-time measurement of leaf physiological properties, including CO2 assimilation (A), stomatal conductance to water vapour (gsw) and intercellular CO2 (Ci). Modern open-path gas exchange systems offer greater portability than the laboratory-built systems of the past and take advantage of high-precision infrared gas analyzers and optimized system design. However, the basic measurement paradigm has long required steadystate conditions for accurate measurement. For CO2 response curves, this requirement has meant that each point on the curve needs 1–3 min and a full response curve …
Critical Decision Dates For Drought Management In Central And Northern Great Plains Rangelands, A. J. Smart, K. Hamoney, J. D. Scasta, M. Stephenson, J. Volesky, L. T. Vermeire, J. C. Mosley, K. Sedivec, M. Meehan, T. Haigh Et Al.
Critical Decision Dates For Drought Management In Central And Northern Great Plains Rangelands, A. J. Smart, K. Hamoney, J. D. Scasta, M. Stephenson, J. Volesky, L. T. Vermeire, J. C. Mosley, K. Sedivec, M. Meehan, T. Haigh Et Al.
School of Natural Resources: Faculty Publications
No abstract provided.
On The Thermodynamic Foundations Of The Complementary Relationship Of Evaporation, J. Szilagyi
On The Thermodynamic Foundations Of The Complementary Relationship Of Evaporation, J. Szilagyi
School of Natural Resources: Faculty Publications
No abstract provided.