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Articles 1111 - 1140 of 2651
Full-Text Articles in Other Environmental Sciences
Survival And Competing Mortality Risks Of Mountain Lions In A Major Metropolitan Area, John F. Benson, Jeff A. Sikich, Seth P.D. Riley
Survival And Competing Mortality Risks Of Mountain Lions In A Major Metropolitan Area, John F. Benson, Jeff A. Sikich, Seth P.D. Riley
School of Natural Resources: Faculty Publications
Understanding natural and human-caused mortality for top predators persisting in human-dominated landscapes is critical for conserving their populations. We estimated survival and cause-specific mortality rates and investigated factors influencing mortality risk of mountain lions by radio-tracking 58 individuals (33 males, 25 females) across the highly fragmented landscape in greater Los Angeles, California from 2002 to 2019. Mortality risk did not differ strongly between subadults (annual survival [ŝ]=0.68, SE=0.08) and adults (ŝ=0.81, SE=0.04). However, the different age-classes were subjected to mortality risks from different sources as subadults were more likely to be killed by conspecifics, whereas adults were more likely to …
Cigarette Butt Disposal Behavior: A Case Study Of A Public Beach On Jekyll Island, Georgia, Usa, Maranda R. Miller, Mark E. Burbach
Cigarette Butt Disposal Behavior: A Case Study Of A Public Beach On Jekyll Island, Georgia, Usa, Maranda R. Miller, Mark E. Burbach
School of Natural Resources: Faculty Publications
Improperly discarded cigarette butts are a substantial environmental problem. This study explored factors influencing cigarette butt discarding behavior on a public beach on Jekyll Island, Georgia, USA. A mixed-mode design utilized quantitative and qualitative data to study improper cigarette butt disposal. We surveyed smokers regarding their place attachment, environmental attitudes, environmental awareness, and habit as predictors of improper cigarette butt disposal. Environmental attitudes, environmental awareness, and habits were significant predictors of improper cigarette butt disposal behavior. A qualitative inquiry further explored the phenomenon of cigarette butt disposal from the smokers’ perspectives. Interviews illustrated that “improper disposers” experienced themes involving uncertainty …
Nutrient Cycling In Forage Production Systems, David A. Wedin, Michael P. Russelle
Nutrient Cycling In Forage Production Systems, David A. Wedin, Michael P. Russelle
School of Natural Resources: Faculty Publications
In most forage production systems, the nutrients needed for plant growth are provided by the microbially-mediated breakdown and release of plant-available mineral nutrients from dead plant tissues, livestock excreta, soil organic matter, and geochemically-bound mineral forms. Even in fertilized forage systems, determining appropriate fertilizer or manure application rates requires a “systems” approach on the part of the manager (Rotz et al. 2005; Wood et al. 2012). Fertilizer additions are simply one input in the system of inputs, outputs, pools, and fluxes that characterize nutrient cycling in a particular ecosystem.
Decoding The Corn Field: Building Third-Grade Students’ Ideas About Plant Inheritance And Variation, D. Cisterna, E. Ingram, D. Bhattacharya, R. Roy, C. Forbes
Decoding The Corn Field: Building Third-Grade Students’ Ideas About Plant Inheritance And Variation, D. Cisterna, E. Ingram, D. Bhattacharya, R. Roy, C. Forbes
School of Natural Resources: Faculty Publications
No abstract provided.
Carbon And Nitrogen Recycling During Cyanohabs In Dreissenid-Invaded And Non-Invaded Us Midwestern Lakes And Reservoirs, Trinity L. Hamilton, Jessica Corman, Jeff R. Havig
Carbon And Nitrogen Recycling During Cyanohabs In Dreissenid-Invaded And Non-Invaded Us Midwestern Lakes And Reservoirs, Trinity L. Hamilton, Jessica Corman, Jeff R. Havig
School of Natural Resources: Faculty Publications
Lakes and reservoirs play key roles in global carbon cycling, especially as a carbon sink. Enrichment of nutrients in lakes and reservoirs (eutrophication) and rising global temperatures favors the proliferation of bloom-forming cyanobacteria. Harmful blooms of cyanobacteria (cyanoHABs) alter carbon and nutrient cycling in freshwater ecosystems. Some evidence suggests the introduction or establishment of invasive mussel species (i.e., Dreissena spp.) also favor cyanoHAB formation through selective filter feeding, a process through which they may also impact biogeochemical processes including carbon cycling and sequestration. However, few studies have considered the combined effects of invasive mussels and cyanoHABs on carbon and nitrogen …
Whose Ground Truth Is It? Harvesting Lessons From Missouri’S 2018 Bumper Crop Of Drought Observations, Kelly Helm Smith, Mark E. Burbach, Michael J. Hayes, A. Tyre, Patrick E. Guinan, Brian Fuchs, Tonya Haigh, Mark D. Svoboda
Whose Ground Truth Is It? Harvesting Lessons From Missouri’S 2018 Bumper Crop Of Drought Observations, Kelly Helm Smith, Mark E. Burbach, Michael J. Hayes, A. Tyre, Patrick E. Guinan, Brian Fuchs, Tonya Haigh, Mark D. Svoboda
School of Natural Resources: Faculty Publications
No abstract provided.
Lessons Learned From The 2017 Flash Drought Across The U.S. Northern Great Plains And Canadian Prairies, A. Hoell, B. Fuchs, D. Kluck, L. Edwards, J. Perlwitz, J. Eischeid, V. Deheza, R. Pulwarty, K. Bevington
Lessons Learned From The 2017 Flash Drought Across The U.S. Northern Great Plains And Canadian Prairies, A. Hoell, B. Fuchs, D. Kluck, L. Edwards, J. Perlwitz, J. Eischeid, V. Deheza, R. Pulwarty, K. Bevington
School of Natural Resources: Faculty Publications
No abstract provided.
Patterns Of Inquiry-Based Science Instruction And Student Science Achievement In Pisa 2015, Cory Forbes, Knut Neumann, Anja Schiepe-Tiska
Patterns Of Inquiry-Based Science Instruction And Student Science Achievement In Pisa 2015, Cory Forbes, Knut Neumann, Anja Schiepe-Tiska
School of Natural Resources: Faculty Publications
Scientific literacy is a central aim of science education. The Programme for International Student Assessment (PISA) provides a measure of secondary students’ scientific literacy and reported science instruction in 72 countries. Researchers have analyzed PISA data to identify important relationships between science instruction and students’ science achievement. The purpose of this study is to further explore these relationships by using PISA 2015 data from a sample of 13 participating countries representing a range of mean science achievement. We use Latent Profile Analysis (LPA) to explore how students from highest- and lowest-performing profiles characterize the inquiry-based science instruction they experience. We …
Transient Streambed Hydraulic Conductivity In Channel And Bar Environments, Loup River, Nebraska, J. Korus, W.P. Fraundorfer, T. Gilmore, K. Karnik
Transient Streambed Hydraulic Conductivity In Channel And Bar Environments, Loup River, Nebraska, J. Korus, W.P. Fraundorfer, T. Gilmore, K. Karnik
School of Natural Resources: Faculty Publications
No abstract provided.
Drought Management Norms: Is The Middle East And North Africa (Mena) Region Managing Risks Or Crises?, T. Jedd, C. Knutson, M. Hayes, M. Svoboda, S. Fragaszy, M. Belhaj Fraj, R. Mcdonnell
Drought Management Norms: Is The Middle East And North Africa (Mena) Region Managing Risks Or Crises?, T. Jedd, C. Knutson, M. Hayes, M. Svoboda, S. Fragaszy, M. Belhaj Fraj, R. Mcdonnell
School of Natural Resources: Faculty Publications
No abstract provided.
Czech Drought Monitor System For Monitoring And Forecasting Of Agricultural Drought And Drought Impacts, Miroslav Trnka, Petr Hlavinka, Martin Možný, Daniela Semerádová, Petr Štěpánek, Jan Balek, Lenka Bartošová, Pavel Zahradníček, Monika Bláhová, Petr Skalák, Aleš Farda, Michael Hayes, Mark D. Svoboda, Wolfgang Wagner, Josef Eitzinger, Milan Fischer, Zdeněk Zalud
Czech Drought Monitor System For Monitoring And Forecasting Of Agricultural Drought And Drought Impacts, Miroslav Trnka, Petr Hlavinka, Martin Možný, Daniela Semerádová, Petr Štěpánek, Jan Balek, Lenka Bartošová, Pavel Zahradníček, Monika Bláhová, Petr Skalák, Aleš Farda, Michael Hayes, Mark D. Svoboda, Wolfgang Wagner, Josef Eitzinger, Milan Fischer, Zdeněk Zalud
School of Natural Resources: Faculty Publications
The awareness of drought and its impacts on Central Europe increased after the significant drought episodes in 2000, 2003, 2012 and 2015, which were all estimated to have caused over 500 million Euro in damage in the Czech Republic alone. These events indicated the need for timely and highresolution monitoring tools that would enable analysing, monitoring and forecasting of drought events. Monitoring soil water availability in near real time and at high-resolution (up to 0.5 × 0.5 km for some products) helps farmers and water managers to mitigate impacts of these extreme events. The Czech Drought Monitor was developed between …
Ecotour Guide Training Program Characteristics And Methods: A Case Study From The African Bush, N.Q. Lackey, L. Pennisi
Ecotour Guide Training Program Characteristics And Methods: A Case Study From The African Bush, N.Q. Lackey, L. Pennisi
School of Natural Resources: Faculty Publications
No abstract provided.
Peregrine Falcon Survival Rates Derived From A Long-Term Study At A Migratory And Overwintering Area In Coastal Washington, D.E. Varland, L.A. Powell, J.B. Buchanan, T.L. Fleming, C. Vanier
Peregrine Falcon Survival Rates Derived From A Long-Term Study At A Migratory And Overwintering Area In Coastal Washington, D.E. Varland, L.A. Powell, J.B. Buchanan, T.L. Fleming, C. Vanier
School of Natural Resources: Faculty Publications
No abstract provided.
Effects Of Liberalizing Harvest Regulations On Canada Goose (Branta Canadensis) Demography In Nebraska, T. Lyons, L. Powell, M. Vrtiska
Effects Of Liberalizing Harvest Regulations On Canada Goose (Branta Canadensis) Demography In Nebraska, T. Lyons, L. Powell, M. Vrtiska
School of Natural Resources: Faculty Publications
No abstract provided.
Water Balance Backward: Estimation Of Annual Watershed Precipitation And Its Long-Term Trend With The Help Of The Calibration-Free Generalized Complementary Relationship Of Evaporation, J. Szilagyi
School of Natural Resources: Faculty Publications
No abstract provided.
Reply To “Comment On Two Papers About The Generalized Complementary Evaporation Relationships By Crago Et Al.”, R. Crago, J. Szilagyi, R. Qualls
Reply To “Comment On Two Papers About The Generalized Complementary Evaporation Relationships By Crago Et Al.”, R. Crago, J. Szilagyi, R. Qualls
School of Natural Resources: Faculty Publications
No abstract provided.
A Review Of Drought Monitoring Using Remote Sensing And Data Mining Methods, R. Inoubli, A.B. Abbes, I.R. Farah, V. Singh, T. Tadesse, A.Z. Abiy
A Review Of Drought Monitoring Using Remote Sensing And Data Mining Methods, R. Inoubli, A.B. Abbes, I.R. Farah, V. Singh, T. Tadesse, A.Z. Abiy
School of Natural Resources: Faculty Publications
No abstract provided.
Nc3 Nebraska Climate Summary, M. Shulski
Nc3 Nebraska Climate Summary, M. Shulski
School of Natural Resources: Faculty Publications
No abstract provided.
Multi-Dimensional Nature Of Drought In Abbay/Upper Blue Nile Basin And The Importance Of Regional Coordination Efforts For Mitigation, Y.A. Bayissa, S. Moges, A.M. Malesse, T. Tadesse, A.Z. Abiy
Multi-Dimensional Nature Of Drought In Abbay/Upper Blue Nile Basin And The Importance Of Regional Coordination Efforts For Mitigation, Y.A. Bayissa, S. Moges, A.M. Malesse, T. Tadesse, A.Z. Abiy
School of Natural Resources: Faculty Publications
No abstract provided.
Genetic And Evolutionary Considerations Of The Chronic Wasting Disease – Human Species Barrier, Robert M. Zink
Genetic And Evolutionary Considerations Of The Chronic Wasting Disease – Human Species Barrier, Robert M. Zink
School of Natural Resources: Faculty Publications
Transmissible spongiform encephalopathies can jump species barriers. In relatively few cases is the possible route of transmission thought to be known, mostly involving humans, cattle and sheep. It is thought that sheep might be the cause of Bovine Spongiform Encephalopathy (BSE) and Chronic Wasting Disease (CWD) in cervids, and that humans might have gotten prion disease (e.g., vCJD) from eating meat from BSE+ cows. A looming societal question is whether humans will acquire a prion disease from ingesting prions from CWD+ deer. On an evolutionary tree of the PRNP gene in mammals, deer, sheep and cow are relatively closely related, …
Beyond Inventories: Emergence Of A New Era In Rangeland Monitoring, Matthew O. Jones, David E. Naugle, Dirac Twidwell, Daniel R. Uden, Jeremy D. Maestas, Brady W. Allred
Beyond Inventories: Emergence Of A New Era In Rangeland Monitoring, Matthew O. Jones, David E. Naugle, Dirac Twidwell, Daniel R. Uden, Jeremy D. Maestas, Brady W. Allred
School of Natural Resources: Faculty Publications
In the absence of technology-driven monitoring platforms, US rangeland policies, management practices, and outcome assessments have been primarily informed by the extrapolation of local information from national-scale rangeland inventories. A persistent monitoring gap between plot-level inventories and the scale at which rangeland assessments are conducted has required decision makers to fill data gaps with statistical extrapolations or assumptions of homogeneity and equilibrium. This gap is now being bridged with spatially comprehensive, annual, rangeland monitoring data across all western US rangelands to as- sess vegetation conditions at a resolution appropriate to inform cross-scale assessments and decisions. In this paper, 20-yr trends …
Reservoir Characterization And Static Earth Model For Potential Co2 Storage In Upper Pennsylvanian Cyclothems, Nebraska, Usa, V.L. Smith, R.M. Joeckel
Reservoir Characterization And Static Earth Model For Potential Co2 Storage In Upper Pennsylvanian Cyclothems, Nebraska, Usa, V.L. Smith, R.M. Joeckel
School of Natural Resources: Faculty Publications
No abstract provided.
Can Hydraulic Conductivity Of Fluvial Sediments Be Informed By Spectral Reflectance?, Li Yao Li, Can Liu, Gengxin Ou, Zhaowei Wang, Jesse Korus, Ran Jiang
Can Hydraulic Conductivity Of Fluvial Sediments Be Informed By Spectral Reflectance?, Li Yao Li, Can Liu, Gengxin Ou, Zhaowei Wang, Jesse Korus, Ran Jiang
School of Natural Resources: Faculty Publications
No abstract provided.
Field Conditions And The Accuracy Of Visually Determined Munsell Soil Color, J. Turk, R. Young
Field Conditions And The Accuracy Of Visually Determined Munsell Soil Color, J. Turk, R. Young
School of Natural Resources: Faculty Publications
No abstract provided.
Current Frameworks For Reference Et And Crop Coefficient Calculation, R G. Allen, Ayse Kilic, Clarence W. Robison
Current Frameworks For Reference Et And Crop Coefficient Calculation, R G. Allen, Ayse Kilic, Clarence W. Robison
School of Natural Resources: Faculty Publications
Estimation of evapotranspiration is under continual development and evolution, with significant developments and standardizations made during the past three decades for both reference ET (ETref) and for crop coefficients (Kc). These standardizations provide consistency and reproducibility in estimating ETref and a consistent basis for determining and expressing Kc curves, especially at the local scale. The application of the dual Kc procedure is growing, and has strong potential for improving accuracy of ET estimates as compared to the single Kc approach. This article describes current structures for estimating crop coefficients including the standardized FAO-56 dual Kc approach, with example applications. Emphasis …
Applying The Fao-56 Dual KC Method For Irrigation Water Requirements Over Large Areas Of The Western U.S., Richard Allen, Clarence W. Robison, Justin Huntington, James L. Wright, Ayse Kilic
Applying The Fao-56 Dual KC Method For Irrigation Water Requirements Over Large Areas Of The Western U.S., Richard Allen, Clarence W. Robison, Justin Huntington, James L. Wright, Ayse Kilic
School of Natural Resources: Faculty Publications
The FAO-56 dual crop coefficient procedure was used to determine evapotranspiration (ET) and net irrigation water requirements for all agricultural areas of the states of Idaho and Nevada and in a western U.S. study on effects of climate change on future irrigation water requirements. The products of the applications are for use by state governments for water rights management, irrigation system planning and design, wastewater application system design and review, hydrologic water balances, and groundwater modeling. The products have been used by the U.S. federal government for assessing impacts of current and future climate change on irrigation water demands. The …
A Review Of Landscape Water Requirements Using A Multicomponent Landscape Coefficient, R G. Allen, M. D. Dukes, R. L. Snyder, R. Kjelgren, Ayse Kilic
A Review Of Landscape Water Requirements Using A Multicomponent Landscape Coefficient, R G. Allen, M. D. Dukes, R. L. Snyder, R. Kjelgren, Ayse Kilic
School of Natural Resources: Faculty Publications
Water requirements of landscapes are highly variable due to the heterogeneous natures of landscapes, vegetation types, influence of buildings, and nutrient and water management. Objectives for water management of landscapes are for general appearance and health rather than for maximum biomass production. A multi-component method developed for the Irrigation Association (IA) and extended from the California WUCOLS procedure is demonstrated in which the landscape coefficient (KL, equivalent to a crop coefficient) is broken down into four components: vegetation type, vegetation density, microclimate, and managed stress. Each of these components can be estimated using readily made descriptions of a landscaped area …
Global Production And Free Access To Landsat-Scale Evapotranspiration With Eeflux And Eemetric, Ayse Kilic, R G. Allen, Philip A. Blankenau, Peter Revelle, Doruk Ozturk, Justin L. Huntington
Global Production And Free Access To Landsat-Scale Evapotranspiration With Eeflux And Eemetric, Ayse Kilic, R G. Allen, Philip A. Blankenau, Peter Revelle, Doruk Ozturk, Justin L. Huntington
School of Natural Resources: Faculty Publications
EEFlux (Earth Engine Evapotranspiration Flux) is a version of the METRIC (mapping evapotranspiration at high resolution with internal calibration) application that operates on the Google Earth Engine (EE). EEFlux has a web-based interface and provides free public access to transform Landsat images into 30 m spatial evapotranspiration (ET) data for terrestrial land areas around the globe. EE holds the entire Landsat archive to power EEFlux along with NLDAS/CFSV2 gridded weather data for estimating reference ET. EEFlux is a part of the upcoming OpenET platform (https://openetdata.org/ ) that has leveraged nonprofit funding to provide ET information to all of the lower …
Metric-Gis: An Advanced Energy Balance Model For Computing Crop Evapotranspiration In A Gis Environment, J. M. Ramírez-Cuesta, R G. Allen, D. S. Intrigliolo, Ayse Kilic, Clarence W. Robison, Ricardo Trezza, C. Santos, I. J. Lorite
Metric-Gis: An Advanced Energy Balance Model For Computing Crop Evapotranspiration In A Gis Environment, J. M. Ramírez-Cuesta, R G. Allen, D. S. Intrigliolo, Ayse Kilic, Clarence W. Robison, Ricardo Trezza, C. Santos, I. J. Lorite
School of Natural Resources: Faculty Publications
A novel ArcGIS toolbox that applies the Mapping Evapotranspiration with Internalized Calibration model was developed and tested in a semi-arid environment. The tool, named METRIC-GIS, facilitates the pre-processing operations and the automatic identification of potential calibration and pixels review. The energy balance components obtained from METRIC-GIS were contrasted with those from the original METRIC version (R2 = 1; RMSE = 0 W m–2 or mm day–1 for ETc) Additionally, an irrigated scheme located at southern Spain was considered for assessing Kc variability in the maize fields with METRIC-GIS. The identified spatial variability was mainly due …
A Review Of Vegetation Phenological Metrics Extraction Using Time-Series, Multispectral Satellite Data, Linglin Zeng, Brian D. Wardlow, Daxiang Xiang, Shun Hu, Deren Li
A Review Of Vegetation Phenological Metrics Extraction Using Time-Series, Multispectral Satellite Data, Linglin Zeng, Brian D. Wardlow, Daxiang Xiang, Shun Hu, Deren Li
School of Natural Resources: Faculty Publications
Vegetation dynamics and phenology play an important role in inter-annual vegetation changes in terrestrial ecosystems and are key indicators of climate-vegetation interactions, land use/land cover changes, and variation in year-to-year vegetation productivity. Satellite remote sensing data have been widely used for vegetation phenology monitoring over large geographic domains using various types of observations and methods over the past several decades. The goal of this paper is to present a detailed review of existing methods for phenology detection and emerging new techniques based on the analysis of time-series, multispectral remote sensing imagery. This paper summarizes the objective and applications of detecting …