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Agenda: Innovations In Managing Western Water: New Approaches For Balancing Environmental, Social, And Economic Outcomes, University of Colorado Boulder. Getches Wilkinson Center for Natural Resources, Energy, and the Environment 2015 University of Colorado Law School

Agenda: Innovations In Managing Western Water: New Approaches For Balancing Environmental, Social, And Economic Outcomes, University Of Colorado Boulder. Getches Wilkinson Center For Natural Resources, Energy, And The Environment

Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)

Many aspects of western water allocation and management are the product of independent and uncoordinated actions, several occurring a century or more ago. However, in this modern era of water scarcity, it is increasingly acknowledged that more coordinated and deliberate decision-making is necessary for effectively balancing environmental, social, and economic objectives. In recent years, a variety of forums, processes, and tools have emerged to better manage the connections between regions, sectors, and publics linked by shared water systems. In this event, we explore the cutting edge efforts, the latest points of contention, and the opportunities for further progress.


A Prototype On-Line Aotf Hyperspectral Image Acquisition System For Tenderness Assessment Of Beef Carcasses, Govindarajan Konda Naganathan, Kim Cluff, Ashok Samal, Chris Calkins, David D. Jones, Carol Lorenzen, Jeyamkondan Subbiah 2015 University of Nebraska - Lincoln

A Prototype On-Line Aotf Hyperspectral Image Acquisition System For Tenderness Assessment Of Beef Carcasses, Govindarajan Konda Naganathan, Kim Cluff, Ashok Samal, Chris Calkins, David D. Jones, Carol Lorenzen, Jeyamkondan Subbiah

Faculty Publications in Food Science and Technology

A prototype on-line acousto-optic tunable filter (AOTF)-based hyperspectral image acquisition system (λ = 450– 900 nm) was developed for tenderness assessment of beef carcasses. Hyperspectral images of ribeye muscle on stationary hanging beef carcasses (n = 338) at 2-day postmortem were acquired in commercial beef slaughter or packing plants. After image acquisition, a strip steak was cut from each carcass, vacuum packaged, aged for 14 days, cooked, and slice shear force tenderness scores were collected by an independent lab. Beef hyperspectral images were mosaicked together and principal component (PC) analysis was conducted to reduce the spectral dimension. Six different textural feature ...


Nsf Grant Helps Preserve Parasite Collections [Press Release], Scott Gardner, Lelslie Reed 2015 University of Nebraska - Lincoln

Nsf Grant Helps Preserve Parasite Collections [Press Release], Scott Gardner, Lelslie Reed

Scott Gardner Publications & Papers

The National Science Foundation has awarded a $500,000 grant that will allow four major parasite collections to be digitized. The collections are part of UNL's Harold W. Manter Laboratory of Parasitology. Scott Gardner (pictured) is the curator and director of the Manter Laboratory.

A $500,000 grant from the National Science Foundation will allow the Harold W. Manter Laboratory of Parasitology to digitally preserve four major collections of parasite specimens donated to the University of Nebraska-Lincoln during the past five years.


Analysis Of Seed Preference Trials Of Red Veld Rats And Smith's Bush Squirrels And Trap Effectiveness In The Lowveld Of South Africa, Brooke A. Barber 2015 Western Kentucky University

Analysis Of Seed Preference Trials Of Red Veld Rats And Smith's Bush Squirrels And Trap Effectiveness In The Lowveld Of South Africa, Brooke A. Barber

Honors College Capstone Experience/Thesis Projects

Large tree species in South Africa face reproductive decline, especially older trees that provide ecosystem connectivity. Management of Balule Nature Reserve, an extensive private nature reserve in South Africa, wanted to investigate the roles rodents play in the recruitment and survival of select tree species. Two large tree species of concern, marula (Sclerocarya birrea) and knobthorn acacia (Acacia nigrescens) are dominant, habitat providers and red bushwillow (Combretum apiculatum) is a smaller and more common, prolific seed producer. I investigated whether rodents, specifically red veld rats and Smith’s bush squirrels, may play a detrimental role in the reproductive cycle of ...


Dietary Overlap Of Native White Bass And Introduced Yellow Bass In Barren River, Micaela L. Montgomery 2015 Western Kentucky University

Dietary Overlap Of Native White Bass And Introduced Yellow Bass In Barren River, Micaela L. Montgomery

Honors College Capstone Experience/Thesis Projects

In the Barren River Lake of south central Kentucky, native white bass, Morone chrysops, has experienced a decline in population after the introduction of yellow bass, Morone mississippiensis. These species are competing for resources due to an overlapping diet, likely contributing to the decline of the white bass. To explore this hypothesis, I examined the stomach contents and otoliths of white and yellow bass caught during their spawning time in spring 2012. There were 40 yellow bass and 128 white bass collected in Barren River upstream of Barren River Lake. Analysis of stomach contents revealed that both white and yellow ...


Distributional Expansion Of The Hispid Cotton Rat (Sigmodon Hispidus) Into Dawson County, Nebraska, Jennifer D. Frisch, Keith Geluso, Joseph T. Springer 2015 University of Nebraska at Kearney

Distributional Expansion Of The Hispid Cotton Rat (Sigmodon Hispidus) Into Dawson County, Nebraska, Jennifer D. Frisch, Keith Geluso, Joseph T. Springer

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

In the last century, the Hispid Cotton Rat (Sigmodon hispidus) has moved northward in central parts of the United States, reaching Nebraska in the late 1950s. Recent surveys demonstrate Hispid Cotton Rats inhabit counties across southern parts of Nebraska south of the Platte River. Herein, we report on captures of S. hispidus from a new county (Dawson County), its seasonal occurrence at our study site, and the first known record of the Hispid Cotton Rat north of channels of the Platte River. Our captures represent one of the northern-most records in Nebraska.


An In-Depth Evaluation Of Otolith Zonation And An Ageing Comparison Of Otoliths, Scales, And Pectoral Fin Rays Of Redband Trout (Oncorhynchus Mykiss Gairdneri) And Bluegill (Lepomis Macrochirus), Dennis A. Daw 2015 Boise State University

An In-Depth Evaluation Of Otolith Zonation And An Ageing Comparison Of Otoliths, Scales, And Pectoral Fin Rays Of Redband Trout (Oncorhynchus Mykiss Gairdneri) And Bluegill (Lepomis Macrochirus), Dennis A. Daw

Boise State University Theses and Dissertations

Redband Trout (Oncorhynchus mykiss gairdneri), a native subspecies of Rainbow Trout residing east of the Cascade Mountains, USA, are a popular sport fish in much of its range. Bluegills (Lepomis macrochirus) are one the most important recreational fishes in North America, and are also sought by anglers in many Idaho waters. There is extensive confusion surrounding the timing and interpretation of otolith zones, specifically, which zone represents fast growth and which represents slow growth. Further, otoliths are a lethal sampling method and regardless of population status, many fisheries biologists prefer to use no lethal sampling methods. To determine if the ...


Effect Of A Trace Mineral Injection On Beef Cattle Performance, Carmen J. Brasche 2015 University of Nebraska-Lincoln

Effect Of A Trace Mineral Injection On Beef Cattle Performance, Carmen J. Brasche

Theses and Dissertations in Animal Science

Adequate trace mineral status is important in beef cow/calf and replacement heifer systems because trace minerals play vital roles in reproduction, immunity and growth. Many experiments have investigated the use of a trace mineral injection containing Cu, Mn, Se and Zn (TMI) on growth and immunity of beef cattle. However, very few have investigated TMI use on reproductive performance. Therefore, five experiments, a two year cow/calf experiment, and four replacement heifer experiments were designed to investigate the use of a TMI on reproductive performance of cows and heifers, calf growth and trace mineral status of cows, heifers, and ...


Examination Of Polymorphism In The Serine Proteinase Inhibitor Gene In The Eastern Oyster, Crassostrea Virginica., Aine Lehane 2015 University of Rhode Island

Examination Of Polymorphism In The Serine Proteinase Inhibitor Gene In The Eastern Oyster, Crassostrea Virginica., Aine Lehane

Senior Honors Projects

Oysters are a keystone species; they are filter-feeders and reef-builders. Additionally, oysters are extremely important within the shellfish aquaculture industry; they are the second most widely produced species in world aquaculture production. Eastern oysters, Crassostrea virginica, are produced in aquaculture and are unfortunately susceptible to Dermo disease. Dermo is caused by a protozoan parasite, Perkinsus marinus, and infection is often fatal in oysters due to widespread tissue damage and blockage of blood vessels. Research in oyster disease is particularly needed because disease is one of the largest impediments faced by the aquaculture industry as entire oyster populations can be decimated ...


A Survey Of Horse Training In New England, Shelby C. Ashworth, W. Michael Sullivan 2015 University of Rhode Island

A Survey Of Horse Training In New England, Shelby C. Ashworth, W. Michael Sullivan

Senior Honors Projects

New England no longer has a significant horse training industry. It has many small operations with no obvious and overlapping training philosophies or practices. Show and competition programs are intense and competitive at regional, national and even international levels leading to the observation that techniques employed are equally strategic and tediously designed in order to encourage the exemplary results in the show ring. This study aimed to examine the methods, routines, and strategies that are used by top tier trainers in the New England region of the United States. This information was collected both in survey form and in interview ...


Habitat And Site Selection Of Pheasants And Their Hunters During The Hunting Season, Lindsey Messinger 2015 University of Nebraska-Lincoln

Habitat And Site Selection Of Pheasants And Their Hunters During The Hunting Season, Lindsey Messinger

Dissertations & Theses in Natural Resources

Predator-prey interactions are dynamic and complex with implications for predators, prey, and entire ecological communities. Though predation has obvious mortality costs for prey, equally strong non-consumptive impacts of predation have been the focus of recent studies. Not only are prey affected by their predators through both consumption and fear of predation, but predators are driven by selection to respond to prey behavior. Here, we show how habitat decisions made by highly mobile predators and prey are dynamically linked. In our study system, recreational hunters (predators) make decisions about where to hunt based on a variety of resources (potential prey abundance ...


Ecology And Management Of Superabundant Fish Populations, Nathaniel T. Stewart 2015 University of Nebraska-Lincoln

Ecology And Management Of Superabundant Fish Populations, Nathaniel T. Stewart

Dissertations & Theses in Natural Resources

Fish population biomasses can reach extreme levels; we term these populations superabundant fish populations. Superabundant fish populations may negatively affect aquatic communities and anglers, necessitating the effective management of the superabundant fish populations. However, there are gaps in our understanding of these populations. The gaps in our understanding hamper our ability to predict effects on valuable sportfisheries and to effectively manage superabundant fish populations. The overall goal of my thesis research is to provide further insight into the ecology of superabundant fish populations and to provide information that will aid in their effective management. First, we described a new method ...


Shorebird Migratory Stopover Responses To Local And Regional Change: Habitat Decisions In A Vanishing Landscape, Caitlyn Gillespie 2015 University of Nebraska-Lincoln

Shorebird Migratory Stopover Responses To Local And Regional Change: Habitat Decisions In A Vanishing Landscape, Caitlyn Gillespie

Dissertations & Theses in Natural Resources

Understanding the consequences of anthropogenic change for migratory species is challenging because although they have evolved to cope with environmental uncertainty, migrants still rely on predictable relationships within and among habitats to make informed decisions. Calidris shorebirds rely on ephemeral wetlands during northward migration through mid-continental North America, where favorable habitat conditions are annually and regionally unpredictable and increasingly altered by land-use change. During spring 2013 and 2014, we assessed Calidris habitat use in the Rainwater Basin (RWB) and the Prairie Pothole Region (PPR) at both local and landscape scales. Although anthropogenic change has altered the wetland landscape in both ...


Effects Of Feeding Distillers Grains Throughout Different Phases Of Production On Shelf Life Of Ground Beef, Brandy D. Cleveland 2015 University of Nebraska-Lincoln

Effects Of Feeding Distillers Grains Throughout Different Phases Of Production On Shelf Life Of Ground Beef, Brandy D. Cleveland

Theses and Dissertations in Animal Science

These studies analyzed the effects of feeding distillers grains on the shelf life of cooked and raw ground beef, and how the addition of postmortem or dietary antioxidants impact shelf life.

For study one, cattle were assigned to backgrounding diets containing low or high concentrations of wet distillers grains (WDGS) and either corn gluten feed or modified wet distillers grains (MDGS) during finishing. For study two, cattle were fed one of five finishing diets; corn, wet distillers grains (WDGS), WDGS + vitamin E, WDGS + Ethoxyquin/TBHQ, or WDGS + vitamin E + Ethoxyquin/TBHQ.

Shoulder clods from each dietary treatment were ground and ...


Bioenergetics And Habitat Suitability Models For The Chinese Mystery Snail (Bellamya Chinensis), Danielle Haak 2015 University of Nebraska-Lincoln

Bioenergetics And Habitat Suitability Models For The Chinese Mystery Snail (Bellamya Chinensis), Danielle Haak

Dissertations & Theses in Natural Resources

Relatively little is known about the invasive Chinese mystery snail (Bellamya chinensis). This research aims to elucidate some of the mystery surrounding this species. First, we place the species in context with other invasive freshwater snails of the USA and Canada, identifying current information gaps, categorizing shared characteristics among families and species, and comparing functional roles and ecological effects of freshwater snails. We conclude that more focus needs to be directed to regulating the aquarium, pet, and food trades if we are serious about preventing future invasions. Next, we develop a bioenergetics model for the species by quantifying and comparing ...


Impact Of Wet Distillers Grains Plus Solubles And Antioxidants On A Basic Mechanism Of Beef Tenderization, Michael D. Chao 2015 University of Nebraska-Lincoln

Impact Of Wet Distillers Grains Plus Solubles And Antioxidants On A Basic Mechanism Of Beef Tenderization, Michael D. Chao

Theses and Dissertations in Animal Science

Feeding high levels of wet distillers grains plus solubles (WDGS) increases polyunsaturated fatty acid (PUFA) levels in beef. Perhaps, WDGS in feedlot diets increases PUFA concentration in the SR membrane, thereby altering membrane integrity, resulting in more rapid calcium leakage and improved tenderness. Feeding antioxidants may mitigate such effects. In the first study, effects of feeding 50 % WDGS on SR membrane composition, free calcium concentration and tenderness were studied. The SR membrane from steers fed WDGS were more tender, had higher free calcium concentration, had more PUFA, more phosphatidylcholine (PC), less phosphatidylethanolamine (PE) and less total phospholipids when compared to ...


The Influence Of The Bovine Fecal Microbiota On The Shedding Of Shiga Toxin-Producing Escherichia Coli (Stec) By Beef Cattle, Nirosh D. Aluthge 2015 University of Nebraska-Lincoln

The Influence Of The Bovine Fecal Microbiota On The Shedding Of Shiga Toxin-Producing Escherichia Coli (Stec) By Beef Cattle, Nirosh D. Aluthge

Dissertations & Theses in Food Science and Technology

During the past three decades, Shiga toxin-producing E.coli (STEC) have emerged as an important food safety concern. Although initially E. coli O157 was the main focus, recent outbreaks and resulting investigations have shown that certain non-O157 STEC are as much a threat to food safety as their O157 counterparts. To the beef industry, STEC have been of particular concern due to the frequent association of beef and beef products as vehicles of STEC infection. As a result, along with E. coli O157, six non-O157 STEC serogroups (known as the ‘big six’) are now regulated as adulterants in certain raw ...


Interspecific Egg Rejection As Ecological Collateral Damage From Selection Driven By Conspecific Brood Parasitism, Bruce E. Lyon, Daizaburo Shizuka, John M. Eadie 2015 University of California, Santa Cruz

Interspecific Egg Rejection As Ecological Collateral Damage From Selection Driven By Conspecific Brood Parasitism, Bruce E. Lyon, Daizaburo Shizuka, John M. Eadie

Faculty Publications in the Biological Sciences

Distinguishing between interspecific and intraspecific coevolution as the selective driver of traits can be difficult in some taxa. A previous study of an avian obligate brood parasite, the black-headed duck, Heteronetta atricapilla, suggested that egg rejection by its two main hosts (two species of coot) is an incidental by-product of selection from conspecific brood parasitism within the hosts, not selection imposed by the interspecific parasite. However, although both species of coot can recognize and reject eggs of conspecific brood parasites, which closely resemble their own, they paradoxically also accept a moderate fraction of duck eggs (40–60%), which differ strikingly ...


"Luck Of The Draw:" Enhancing Safety In Equine University Sport, Angela Barbour 2015 Bowling Green State University

"Luck Of The Draw:" Enhancing Safety In Equine University Sport, Angela Barbour

Honors Projects

Equestrian sports have the highest rates of injury across all sports with traumatic brain injury rates twice as high as those in football. The goal of this project is to make our university Intercollegiate Horse Show Association (IHSA) athletes safer by creating an easy-to-use tool that athletes can apply to evaluate new horses they ride at competitions. The tool guides team members through evaluation techniques by providing important safety dimensions and scoring guidelines. An undergraduate majoring in biology with an interest in Veterinarian specialization developed the diagnostic tool. The tool allows evaluation of movement/quality of gaits, jumping ability, equine ...


Assessment Of Workers Exposure To Ammonia In Animal Facilities At Walter C. Todd Agricultural Research Center, Nacogdoches, Texas, Ahmad F. Nasser, Sheryll B. Jerez 2015 Stephen F Austin State University, Arthur Temple College of Forestry and Agriculture

Assessment Of Workers Exposure To Ammonia In Animal Facilities At Walter C. Todd Agricultural Research Center, Nacogdoches, Texas, Ahmad F. Nasser, Sheryll B. Jerez

Bright Ideas Conference

Poultry, swine, and equine animal facilities are all considered as Concentrated Animal Feeding Operations (CAFOs). All these CAFOs are emission sources of gases and other pollutants which have negative impacts on the environment, human health, and animal health as well. One of those gases is Ammonia (NH3), which is a colorless, highly irritating gas with a pungent, suffocating odor, and if inhaled in high concentrations, it may cause harm to the human body and the function of lungs. Personal exposure to ammonia was assessed for six workers in the three animal facilities: poultry, swine, and equine. Two workers from each ...


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