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Predicting Livestock Depredation Risk By African Lions (Panthera Leo) In A Multi-Use Area Of Northern Tanzania, K. Beattie, E.R. Olson, B. Kissui, A. Kirschbaum, C. Kiffner 2020 University of Connecticut, Storrs & Northland College

Predicting Livestock Depredation Risk By African Lions (Panthera Leo) In A Multi-Use Area Of Northern Tanzania, K. Beattie, E.R. Olson, B. Kissui, A. Kirschbaum, C. Kiffner

U.S. National Park Service Publications and Papers

Human-wildlife conflicts, especially those involving large carnivores, are of global conservation and livelihood concern and require effective and locally-adapted prevention measures. Risk of lion attack on livestock (i.e., depredation) may vary seasonally and may be associated with variation in wild prey abundance or landscape characteristics. To test these competing hypotheses, we used a resource selection approach, and determined whether prey catchability (indicated by geo-spatial variables), or prey availability (indicated by modeled abundance recorded via camera traps) explained spatial and seasonal variation in livestock depredation risk by African lions on Manyara Ranch Conservancy, a multi-use area in northern Tanzania. Seasonal variation …


Arjen Y. Hoekstra 1967–2019, Davy Vanham, Mesfin Mekonnen, Ashok K. Chapagain 2020 European Commission, Joint Research Centre,

Arjen Y. Hoekstra 1967–2019, Davy Vanham, Mesfin Mekonnen, Ashok K. Chapagain

Daugherty Water for Food Global Institute: Faculty Publications

Arjen Hoekstra introduced the water footprint in 20021, building on the concept of virtual water Tony Allan to discuss the role of trade in alleviating water scarcity in the Middle East. He thereby opened a new dimension in the debate around fair and sustainable allocation of freshwater resources. He laid the foundations to show the role of indirect water (that is, water used elsewhere to produce goods we consume) in our daily life beyond our direct use for drinking, cooking or washing. The water footprint is an indicator of direct and indirect water use by a producer or consumer, showing …


2020 Sponsorship Opportunities. Lincoln, Neb., Usa, Oct. 7-9, 2020, 2020 University of Nebraska - Lincoln

2020 Sponsorship Opportunities. Lincoln, Neb., Usa, Oct. 7-9, 2020

Daugherty Water for Food Global Institute Literature

The Water for Food Global Conference convenes leading international experts and organizations to focus on achieving global water and food security. “Cultivating Innovation: The Next Decade,” will include keynote speakers, sessions, interactive learning and networking opportunities. The conference also celebrates the 10 year anniversary of the Daugherty Water for Food Global Institute, headlining a week of water and food security-related activities.

Topics include: • Research and Technology Innovation • Policy/Management Tools and Best Practices • Capacity Development/Youth and Students • Water Quality and Public Health • Climate Change and Ecosystems • Women for Water and Food • Nutrition and Health …


Effects Of Surface Heterogeneity Due To Drip Irrigation On Scintillometer Estimates Of Sensible, Latent Heat Fluxes And Evapotranspiration Over Vineyards, Hatim M. E. Geli, José González-Piqueras, Christopher M. U. Neale, Claudio Balbontín, Isidro Campos, Alfonso Calera 2020 New Mexico State University

Effects Of Surface Heterogeneity Due To Drip Irrigation On Scintillometer Estimates Of Sensible, Latent Heat Fluxes And Evapotranspiration Over Vineyards, Hatim M. E. Geli, José González-Piqueras, Christopher M. U. Neale, Claudio Balbontín, Isidro Campos, Alfonso Calera

Daugherty Water for Food Global Institute: Faculty Publications

Accurate estimates of sensible (H) and latent (LE) heat fluxes and actual evapotranspiration (ET) are required for monitoring vegetation growth and improved agricultural water management. A large aperture scintillometer (LAS) was used to provide these estimates with the objective of quantifying the effects of surface heterogeneity due to soil moisture and vegetation growth variability. The study was conducted over drip-irrigated vineyards located in a semi-arid region in Albacete, Spain during summer 2007. Surface heterogeneity was characterized by integrating eddy covariance (EC) observations of H, LE and ET; land surface temperature (LST) and normalized difference vegetation index (NDVI) data from Landsat …


Assessment Of An Automated Calibration Of The Sebal Algorithm To Estimate Dry-Season Surface-Energy Partitioning In A Forest–Savanna Transition In Brazil, Leonardo Laipelt, Anderson Luis Ruhoff, Ayan Santos Fleischmann, Rafael Henrique Bloedow Kayser, Elisa de Mello Kich, Humberto Ribeiro da Rocha, Christopher Michael Usher Neale 2020 Federal University of Rio Grande do Sul

Assessment Of An Automated Calibration Of The Sebal Algorithm To Estimate Dry-Season Surface-Energy Partitioning In A Forest–Savanna Transition In Brazil, Leonardo Laipelt, Anderson Luis Ruhoff, Ayan Santos Fleischmann, Rafael Henrique Bloedow Kayser, Elisa De Mello Kich, Humberto Ribeiro Da Rocha, Christopher Michael Usher Neale

Daugherty Water for Food Global Institute: Faculty Publications

Evapotranspiration (ET) provides a strong connection between surface energy and hydrological cycles. Advancements in remote sensing techniques have increased our understanding of energy and terrestrial water balances as well as the interaction between surface and atmosphere over large areas. In this study, we computed surface energy fluxes using the Surface Energy Balance Algorithm for Land (SEBAL) algorithm and a simplified adaptation of the CIMEC (Calibration using Inverse Modeling at Extreme Conditions) process for automated endmember selection. Our main purpose was to assess and compare the accuracy of the automated calibration of the SEBAL algorithm using two different sources of meteorological …


Treenuts And Groundnuts In The Eat-Lancet Reference Diet: Concerns Regarding Sustainable Water Use, Davy Vanhama, Mesfin Mekonnen, Arjen Y. Hoekstra 2020 European Commission, Joint Research Centre,

Treenuts And Groundnuts In The Eat-Lancet Reference Diet: Concerns Regarding Sustainable Water Use, Davy Vanhama, Mesfin Mekonnen, Arjen Y. Hoekstra

Daugherty Water for Food Global Institute: Faculty Publications

The EAT-Lancet universal healthy reference diet recommends an increase in the consumption of healthy foods, among which treenuts and groundnuts. Both are, however, water-intensive products, with a large water footprint (WF) per unit of mass and protein and already today contribute to blue water stress in different parts of the world. The envisaged massive required increase in nut production to feed a global population with this reference diet, needs to occur in a water-sustainable way. In this paper, we identify and quantify where current nut production contributes to local blue water stress and discuss options for water-sustainable nut production. We …


Use Of Multiple Environment Variety Trials Data To Simulate Maize Yields In The Ogallala Aquifer Region: A Two Model Approach, Vaishali Sharda, Mesfin Mekonnen, Chittaranjan Ray, Prasanna H. Gowda 2020 University of Nebraska-Lincoln

Use Of Multiple Environment Variety Trials Data To Simulate Maize Yields In The Ogallala Aquifer Region: A Two Model Approach, Vaishali Sharda, Mesfin Mekonnen, Chittaranjan Ray, Prasanna H. Gowda

Daugherty Water for Food Global Institute: Faculty Publications

With a long-term goal to optimize use of groundwater in the Ogallala Aquifer Region (OAR) to sustain food production systems, this study was conducted to calibrate Decision Support System for Agrotechnology Transfer (DSSAT) and AquaCrop crop modeling platforms to simulate maize production at a regional scale using historic datasets. Calibration of the models with local crop growth data and crop management practices is important, but usually this in-season crop growth information is not available. This study determined the possibility of using maize variety trial data for the evaluation of the CSM-Crop Estimation through Resources and Environmental Synthesis-Maize and AquaCrop models …


Water Productivity Benchmarks: The Case Of Maize And Soybean In Nebraska, Mesfin Mekonnen, Arjen Y. Hoekstra, Christopher Michael Usher Neale, Chittaranjan Ray, Haishun Yang 2020 Daugherty Water for Food Global Institute

Water Productivity Benchmarks: The Case Of Maize And Soybean In Nebraska, Mesfin Mekonnen, Arjen Y. Hoekstra, Christopher Michael Usher Neale, Chittaranjan Ray, Haishun Yang

Daugherty Water for Food Global Institute: Faculty Publications

Water productivity benchmarks for irrigated and rainfed agriculture will provide relevant information to manage scarce water resources and control groundwater level decline. We analyze the temporal and spatial variation of the water productivity (WP) of maize and soybean in Nebraska, with WP defined as harvested crop weight per total evapotranspiration. The results show that WP of both maize and soybean increase from west to east within Nebraska and have increased over the last 25 years, mainly due to the increase in crop yields (land productivity). We derive WP benchmarks for each crop per climate zone. Increasing actual WPs in the …


Potential Of Using Spectral Vegetation Indices For Corn Green Biomass Estimation Based On Their Relationship With The Photosynthetic Vegetation Sub-Pixel Fraction, Luan Peroni Venancio, Everardo Chartuni Mantovani, Cibele Hummel do Amaral, Christopher M.U. Neale, Ivo Zution Gonçalves, Roberto Filgueiras, Fernando Coelho Eugenio 2020 Federal University of Viçosa

Potential Of Using Spectral Vegetation Indices For Corn Green Biomass Estimation Based On Their Relationship With The Photosynthetic Vegetation Sub-Pixel Fraction, Luan Peroni Venancio, Everardo Chartuni Mantovani, Cibele Hummel Do Amaral, Christopher M.U. Neale, Ivo Zution Gonçalves, Roberto Filgueiras, Fernando Coelho Eugenio

Daugherty Water for Food Global Institute: Faculty Publications

Crop biomass (Bio) is one of the most important parameters of a crop, and knowledge of it before harvest is essential to help farmers in their decision making. Both green and dry Bio can be estimated from vegetation spectral indices (VIs) because they have a close relationship with accumulated absorbed photosynthetically active radiation (APAR), which is proportional to total Bio. The aims of this study were to analyze the potential capacity of spectral vegetation indices in estimating corn green biomass based on their relationship with the photosynthetic vegetation sub-pixel fraction derived from spectral mixture analysis and to analyze the best …


The Effects Of Environmental Restoration On Housing Prices In Northern Colorado, Jack Steketee 2020 West Virginia University

The Effects Of Environmental Restoration On Housing Prices In Northern Colorado, Jack Steketee

Capstones and Honors Theses

Hedonic valuation is a method of using a market, such as the housing market, to estimate the value of non-market goods. An example of a non-market good we might want to value is environmental quality. Proper valuation of the environment can help make informed policy decisions, as well as help better protect or restore it. We use the hedonic valuation model This research uses data from a housing market in Colorado to estimate the value homeowners place on an environmental restoration project. We hypothesized that overall, we would see an increase in home value after a restoration project was completed …


Ferrihydrite Reduction Increases Arsenic And Uranium Bioavailability In Unsaturated Soil, Arindam Malakar, Michael Kaiser, Daniel D. Snow, Harkamal Walia, Banajarani Panda, Chittaranjan Ray 2020 University of Nebraska - Lincoln

Ferrihydrite Reduction Increases Arsenic And Uranium Bioavailability In Unsaturated Soil, Arindam Malakar, Michael Kaiser, Daniel D. Snow, Harkamal Walia, Banajarani Panda, Chittaranjan Ray

Daugherty Water for Food Global Institute: Faculty Publications

Redox driven mobilization and plant uptake of contaminants under transiently saturated soil conditions need to be clarified to ensure food and water quality across different irrigation systems. We postulate that solid-phase iron reduction in anoxic microsites present in the rhizosphere of unsaturated soil is a key driver for mobilization and bioavailability of contaminants under nonflooded irrigation. To clarify this, two major crops, corn and soybean differing in iron uptake strategies, were grown in irrigated synthetic soil under semiarid conditions with gravimetric moisture content ∼12.5 ± 2.4%. 2-line ferrihydrite, which was coprecipitated with uranium and arsenic, served as the only iron …


Mitogenome Of Northern Long-Eared Bat, Sarah Gaughan, Kevin L. Pope, Jeremy A. White, Cliff Lemen, Patricia Freeman 2020 Bellevue University

Mitogenome Of Northern Long-Eared Bat, Sarah Gaughan, Kevin L. Pope, Jeremy A. White, Cliff Lemen, Patricia Freeman

Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications

The complete mitogenome of the northern long-eared bat (Myotis septentrionalis) was determined to be 17,362 bp and contained 22 tRNA genes, 2 rRNA genes and one control region. The whole genome base composition was 33.8% GC. Phylogenetic analysis suggests that M. septentrionalis be positioned next to M. auriculus in the Nearctic subclade of the Myotis genus. This complete mitochondrial genome provides essential molecular markers for resolving phylogeny and future conservation efforts.


Exit Here: Strategies For Dealing With Aging Dams And Reservoirs, Henry H. Hansen, Emily Forzono, Alisha Grams, Lindsay Ohlman, Christine Ruskamp, Mark A. Pegg, Kevin L. Pope 2020 University of Nebraska-Lincoln & Leibniz-Institute of Freshwater, Ecology and Inland Fisheries

Exit Here: Strategies For Dealing With Aging Dams And Reservoirs, Henry H. Hansen, Emily Forzono, Alisha Grams, Lindsay Ohlman, Christine Ruskamp, Mark A. Pegg, Kevin L. Pope

Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications

Aging infrastructure is prevalent throughout the world, but water control management structures, specifically dams, are of growing concern. Dams and their corresponding reservoirs have inherent, but separate, lifespans. The proportion of dams around the world that continue operation beyond their intended lifespans is growing at an alarming rate. Society will not only have to navigate the tradeoffs associated with the deterioration of services provided by reservoirs and dams, but also impending structural failures. Society is nearing a critical pinch point where we will have to decide how to deal with dams and reservoirs at scales that range from a single …


Use And Expenditures On Public Access Hunting Lands, Lyndsie S. Wszola, Lutz F. Gruber, Erica F. Stuber, Lindsey N. Messinger, Christopher J. Chizinski, Joseph J. Fontaine 2020 University of Nebraska-Lincoln

Use And Expenditures On Public Access Hunting Lands, Lyndsie S. Wszola, Lutz F. Gruber, Erica F. Stuber, Lindsey N. Messinger, Christopher J. Chizinski, Joseph J. Fontaine

Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications

The recreational and economic benefits of hunting on traditional permanent public lands are well-established. Increasingly popular “open fields” hunting access programs temporarily open private lands to public hunting through public-private partnerships. Open fields programs have the potential to create public hunting opportunities and economic development in rural communities, but the extent to which open fields programs compare to traditional public lands at providing benefits to hunters and rural communities has not yet been evaluated. We compared hunter use and expenditures on open fields lands and traditional public lands in Nebraska, USA. We used Convolution Likelihood Ecological Abundance Regression, a novel …


Use Of Otolith Chemistry To Assess Recruitment And Habitat Use Of A White Bass Fishery In A Nebraska Reservoir, Matthew A. Perrion, Mark A. Kaemingk, Keith D. Koupal, Casey W. Schoenebeck, Nate A. Bickford 2020 University of Nebraska–Kearney

Use Of Otolith Chemistry To Assess Recruitment And Habitat Use Of A White Bass Fishery In A Nebraska Reservoir, Matthew A. Perrion, Mark A. Kaemingk, Keith D. Koupal, Casey W. Schoenebeck, Nate A. Bickford

Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications

Managing fisheries that exhibit variable annual recruitment is challenging, and maintenance stockings are often prescribed to minimize interannual population variation. Maintenance stockings are costly and may not be necessary if sufficient natural recruitment is occurring. Therefore, developing tools and techniques that can collectively assess hatching origin and subsequent habitat use of individuals would be valuable. Herein, we aimed to assess the efficacy of otolith chemistry techniques to (1) determine whether there was evidence of natural recruitment within an annually stocked white bass population and (2) examine the potential to describe spatial reservoir use of these age-0 fish. A sample of …


Integrated Techno-Economic And Life Cycle Analyses Of Biomass Utilization For Value-Added Bioproducts In The Northeastern United States, Yuxi Wang 2020 West Virginia University

Integrated Techno-Economic And Life Cycle Analyses Of Biomass Utilization For Value-Added Bioproducts In The Northeastern United States, Yuxi Wang

Graduate Theses, Dissertations, and Problem Reports

A multi-stage spatial analysis was first conducted to select locations for lignocellulosic biomass-based bioproduct facility, using Geographical Information System (GIS) spatial analysis, multi-criteria analysis ranking algorithm, and social-economic assessment. A case study was developed to determine locations for lignocellulosic biorefineries using feedstocks including forest residue biomass and three energy crops for 13 states in the northeastern United States. In the entire study area, 11.1% of the counties are high-suitable, 48.8% are medium-suitable for biorefinery siting locations. A non-parametric analysis of cross-group surveys showed that preferences on biorefinery siting are homogeneous for experts in academia and industry groups, but people in …


The Economic Impacts Of Soil Remediation Efforts At Lead Arsenate Contaminated Sites In Yakima County: A Hedonic Approach, Seth Urbanski 2020 Central Washington University

The Economic Impacts Of Soil Remediation Efforts At Lead Arsenate Contaminated Sites In Yakima County: A Hedonic Approach, Seth Urbanski

All Master's Theses

Area-wide lead-arsenate contamination stemming from the widespread use of pesticides in the early 1900s poses a serious health risk to the residents of Yakima, Washington. Soil testing for contaminants resulted in the Department of Ecology funding the remediation of 6 elementary schools in Yakima, Washington where unsafe levels of lead and arsenic were found in the topsoil. This study will evaluate the impact that these remediation projects have had on nearby real estate values through the use of GIS analysis and multivariate hedonic pricing models. We expect to find a negative price effect on real estate values following the announcement …


Threatened And Endangered Species Listing/Delisting Recommendations, 2020 University of Nebraska - Lincoln

Threatened And Endangered Species Listing/Delisting Recommendations

Nebraska Game and Parks Commission Publications

The Nebraska Game and Parks Commission has the statutory responsibility of administering Nebraska’s Nongame and Endangered Species Conservation Act. One of the Commission’s duties under the Act is to determine which species are endangered or threatened in the state. According to Nebraska Revised Statute § 37-806, determinations regarding endangered and threatened species shall be made on the basis of the best scientific, commercial, and other data available to the Commission. Revisions to the list of endangered and threatened species were last completed in 2000, and since then much new information was gained regarding the abundance, distribution, and imperilment status of …


Family Forest Owners Satisfaction With Timber Transactions, Jeffrey M. Lee 2020 West Virginia University

Family Forest Owners Satisfaction With Timber Transactions, Jeffrey M. Lee

Graduate Theses, Dissertations, and Problem Reports

Forest industries in the eastern U.S. rely heavily on family forest owners to supply fiber needs for their mills. As of 2017, 79 percent of West Virginia is classified as forestland and of this roughly 86.5 percent is privately owned. With such a heavy reliance on wood from private forest lands, family forest owner satisfaction is extremely important if companies want to continue harvesting or working with these landowners in the future.

Timber transactions are complex. No two timber transactions are exactly the same. They often involve many different parties apart from the landowner. Site conditions, land cover, and landowner …


Some Papal Bull: 16th Century Alum Trade And English Royal Autonomy, Kyra Zapf 2020 University of Puget Sound

Some Papal Bull: 16th Century Alum Trade And English Royal Autonomy, Kyra Zapf

Summer Research

The early 16th century saw the rise of a wealthy middle class fueled by a new and expanding global textile industry. With this expansion came opportunities for exploitation fueling the rise of a new economic nationalism at odds with the ideals of a unified Christian church. In this essay, I shall be looking at the popular alum trade in Italy, Spain, and England from the 14th to the 17th centuries and explore how the lucrative trade profoundly shaped early modern economies, social hierarchies, governance, and law.

Alum, a dye fixative was one of the first and most …


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