Digital Commons Network^™

Tackling Change: Future-Proofing Water, Agriculture, And Food Security In An Era Of Climate Uncertainty, Peter G. Mccornick, Vladimir Smakhtin, Luna Bharati, Robyn Johnston, Matthew Mccartney, Fraser Sugden, Floriane Clement, Beverly Mcintyre

Daugherty Water for Food Global Institute: Faculty Publications

In 1950 the global population was just over 2.5 billion. Now, in 2013, it is around 7 billion. Although population growth is slowing, the world is projected to have around 9.6 billion inhabitants by 2050. Most of the population increase will be in developing countries where food is often scarce, and land and water are under pressure. To feed the global population in 2050 the world will have to produce more food without significantly expanding the area of cultivated land and, because of competition between a greater number of water users, with less freshwater. On top of land and water …

A National-Scale Picture Of U.S. Cattle Movements Obtainedfrom Interstate Certificate Of Veterinary Inspection Data, Daniel A. Grear, Ryan S. Miller, Jason E. Lombard, Colleen T. Webb, Michael Buhnerkempe, Katie Portacci

Zoonotics and Wildlife Disease: Publications

tWe present the first comprehensive description of how shipments of cattle connect thegeographic extent and production diversity of the United States cattle industry. We built anetwork of cattle movement from a state-stratified 10% systematic sample of calendar year2009 Interstate Certificates of Veterinary Inspection (ICVI) data. ICVIs are required to certifythe apparent health of cattle moving across state borders and allow us to examine cattlemovements at the county scale. The majority of the ICVI sample consisted of small ship-ments (head) moved for feeding and beef production. Geographically, the central plainsstates had the most connections, correlated to feeding infrastructure. The entire nation …

Changes In Forest Structure, Fuels And Potential Fire Behaviour Since 1873 In The Lake Tahoe Basin, Usa, Alan H. Taylor, Anna M. Vandervlugt, R. Stockton Maxwell, Robert M. Beaty, Catherine Airey, Carl N. Skinner

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Questions: What were the characteristics of pre-Anglo-American (reference) forests before logging, grazing and fire exclusion, and how have they changed? What were the structural characteristics of canopy and surface fuels and potential fire behaviour in reference forests, and how do they compare to contemporary forests? How might information from reference conditions be used to inform current restoration andmanagement practices?

Location: Lake Tahoe Basin in the Sierra Nevada, California and Nevada, USA.

Methods: Tree species composition, size structure, basal area, density, surface and canopy fuels, and potential fire behaviour were quantified for reference and contemporary conditions in 32 stands. This was …

Consequences Of Climate Change For The Soil Climate In Central Europe And The Central Plains Of The United States, Miroslav Trnka, Kurt Christian Kersebaum, Josef Eitzinger, Michael Hayes, Petr Hlavinka, Mark Svoboda, Martin Dubrovský, Daniela Semerádová, Brian D. Wardlow, Eduard Pokorný, Martin Možný, Donald A. Wilhite, Zdeněk Žalud

National Drought Mitigation Center: Faculty Publications

This study aims to evaluate soil climate quantitatively under present and projected climatic conditions across Central Europe (12.1°–18.9° E and 46.8°–51.1° N) and the U.S. Central Plains (90°–104° W and 37°–49° N), with a special focus on soil temperature, hydric regime, drought risk and potential productivity (assessed as a period suitable for crop growth). The analysis was completed for the baselines (1961–1990 for Europe and 1985–2005 for the U.S.) and time horizons of 2025, 2050 and 2100 based on the outputs of three global circulation models using two levels of climate sensitivity. The results indicate that the soil climate (soil …

Interpretation Of Gypsy Moth Frontal Advance Using Meteorology In A Conditional Algorithm, K. L. Frank, P. C. Tobin, H. W. Thistle Jr., Laurence S. Kalkstein

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

The gypsy moth, Lymantria dispar, is a nonnative species that continues to invade areas in North America. It spreads generally through stratified dispersal where local growth and diffusive spread are coupled with long-distance jumps ahead of the leading edge. Longdistance jumps due to anthropogenic movement of life stages is a well-documented spread mechanism. Another mechanism is the atmospheric transport of early instars and adult males, believed to occur over short distances. However, empirical gypsy moth population data continue to support the possibility of alternative methods of longrange dispersal. Such dispersal events seemed to have occurred in the mid- to …

Fostering Climate Change Education In The Central Great Plains: A Public Engagement Approach, Lisa M. Pytlikzillig, Timonthy Steffensmeier, Amber Campbell Hibbs, Ben Champion, Eric Hunt, John Harrington Jr, Jacqueline D. Spears, Natalie Umphlett, Tarik Abdel-Monem, Roger Bruning, Daniel W. Kahl

University of Nebraska Public Policy Center: Publications

Despite its increasing importance for sustainability, building widespread competency in the basic principles of climate literacy among the United States general public is a great challenge. This article describes the methods and results of a public engagement approach to planning climate change education in the Central Great Plains of the United States. Our approach incorporated contextual and lay expertise approaches to public engagement with a focus on supporting the self-determination of the specific stakeholder groups–rural producers, educators, and community members. An integration of results from the focus groups reveal that our approach was received positively and elicited a number of …

A Critical Friendship, Elizabeth Murphy, William Logan

University of Nebraska Press: Sample Books and Chapters

A chance meeting in the University of North Carolina campus library in 1944 began a decades-long friendship and sixty-year correspondence. Donald Justice (1925–2004) and Richard Stern (1928–2013) would go on to become, respectively, the Pulitzer Prize–winning poet and the acclaimed novelist. A Critical Friendship showcases a selection of their letters and postcards from the first fifteen years of their correspondence, representing the formative period in both writers’ careers. It includes some of Justice’s unpublished poetry and early drafts of later published poems as well as some early, never-before-published poetry by Stern.

A Critical Friendship is the story of two writers …

Celebrating Insurrection, Will Fowler

University of Nebraska Press: Sample Books and Chapters

The pronunciamiento, a formal list of grievances designed to spark political change in nineteenth-century Mexico, was a problematic yet necessary practice. Although pronunciamientos rarely achieved the goals for which they were undertaken and sometimes resulted in armed rebellion, they were nonetheless both celebrated and commemorated, and the perceptions and representations of pronunciamientos themselves reflected the Mexican people’s response to these “revolutions.”

The third in a series of books examining the pronunciamiento, this collection addresses the complicated legacy of pronunciamientos and their place in Mexican political culture. The essays explore the sacralization and legitimization of these revolts and of their …

Dakota, Norman K. Risjord

University of Nebraska Press: Sample Books and Chapters

The northern plains are often ignored by the rest of the nation or, if not, are mentioned in the context of the weather, Mount Rushmore, or the Black Hills. However, North Dakota and South Dakota have a colorful past—and present—deserving of greater recognition. Norman K. Risjord relates the remarkable histories of these two states, from the geological formation of the Great Plains to economic changes in the twenty-first century. Risjord takes the reader on a journey through the centuries detailing the first human inhabitants of the northern plains, the Lewis and Clark expedition, homesteading and railroad building, the political influence …

Body Geographic, Barrie Jean Borich

University of Nebraska Press: Sample Books and Chapters

A memoir from the award-winning author of My Lesbian Husband, Barrie Jean Borich’s Body Geographic turns personal history into an inspired reflection on the points where place and person intersect, where running away meets running toward, and where dislocation means finding oneself.

One coordinate of Borich’s story is Chicago, the prototypical Great Lakes port city built by immigrants like her great-grandfather Big Petar, and the other is her own port of immigration, Minneapolis, the combined skylines of these two cities tattooed on Borich’s own back. Between Chicago and Minneapolis Borich maps her own Midwest, a true heartland in which …

Estimating Greenhouse Gas Emissions From A Waste Lagoon, Arturo I. Quintanar, Rezaul Mamood, Nanh Lovanh, Justin M. Rawley, Evi Becerra-Acosta, John H. Loughrin

High Plains Regional Climate Center: Staff Publications

A cost-effective approach was used to investigate the relationship between emission of the greenhouse gases (GHG), namely, CO₂, CH₄, and N₂O and energy fluxes from a swine waste lagoon. Energy fluxes were calculated using the Penman method. The energy fluxes showed a diurnal pattern as expected of such fluxes. We found that air temperature and latent energy, lagoon surface temperature and solar radiation, as well as air temperature and wind speed can be used to predict for CO₂, CH₄, and N₂O emissions, respectively. Comparison of observed and predicted …

Regional Climate Trends And Scenarios For The U.S. National Climate Assessment Part 4. Climate Of The U.S. Great Plains, Kenneth E. Kunkel, Laura E. Stevens, Scott E. Stevens, Liqiang Sun, Emily Janssen, Donald Wuebbles, Michael C. Kruk, Devin Thomas, Martha Shulski, Natalie A. Umphlett, Kenneth G. Hubbard, Kevin Robbins, Luigi Romolo, Adnan Akyuz, Tapan B. Pathak, Tony R. Bergantino, J. Greg Dobson

High Plains Regional Climate Center: Staff Publications

This document is one of series of regional climate descriptions designed to provide input that can be used in the development of the National Climate Assessment (NCA). As part of a sustained assessment approach, it is intended that these documents will be updated as new and well-vetted model results are available and as new climate scenario needs become clear. It is also hoped that these documents (and associated data and resources) are of direct benefit to decision makers and communities seeking to use this information in developing adaptation plans.

There are nine reports in this series, one each for eight …

Genetic Testing For Tmem154 Mutations Associated With Lentivirus Susceptibility In Sheep, Michael P. Heaton, Theodore S. Kalbfleisch, Dustin T. Petrik, Barry Simpson, James W. Kijas, Michael L. Clawson, Carol G. Chitko-Mckown, Gregory P. Harhay, Kreg A. Leymaster, International Sheep Genomics Consortium

Roman L. Hruska U.S. Meat Animal Research Center: Reports

In sheep, small ruminant lentiviruses cause an incurable, progressive, lymphoproliferative disease that affects millions of animals worldwide. Known as ovine progressive pneumonia virus (OPPV) in the U.S., and Visna/Maedi virus (VMV) elsewhere, these viruses reduce an animal’s health, productivity, and lifespan. Genetic variation in the ovine transmembrane protein 154 gene (TMEM154) has been previously associated with OPPV infection in U.S. sheep. Sheep with the ancestral TMEM154 haplotype encoding glutamate (E) at position 35, and either form of an N70I variant, were highly-susceptible compared to sheep homozygous for the K35 missense mutation. Our current overall aim was to characterize TMEM154 in …

Public Buildings And Civic Benefactions In Western Rough Cilicia: Insights From Signaling Theory, Luann Wandsnider

Department of Anthropology: Faculty Publications

In the Hellenistic and Roman world of the eastern Mediterranean, Greek and Greco-Roman cities came to be defined by their physical cityscape. These buildings were constructed by specific city institutions, such as the council and the assembly, and financed through city funds, mass subscription and, importantly, public benefactions. Public benefactions, which also included support for festivals and competitions, were made by certain elite and usually wealthy individuals to the benefit of a defined community of citizens (and sometimes non-citizens, as in the case of fortification walls). Institutions within the benefiting community, again the council and the assembly, acknowledged these gifts …

Modelling Dendritic Ecological Networks In Space: An Integrated Network Perspective, Erin E. Peterson, Jay M. Ver Hoef, Dan J. Isaak, Jeffrey A. Falke, Marie-Josée Fortin, Chris E. Jordan, Kristina Mcnyset, Pascal Monestiez, Aaron S. Ruesch, Aritra Sengupta, Nicholas Som, E. Ashley Steel, David M. Theobald, Christian E. Torgersen, Seth J. Wenger

United States Department of Commerce: Staff Publications

Dendritic ecological networks (DENs) are a unique form of ecological networks that exhibit a dendritic network topology (e.g. stream and cave networks or plant architecture). DENs have a dual spatial representation; as points within the network and as points in geographical space. Consequently, some analytical methods used to quantify relationships in other types of ecological networks, or in 2-D space, may be inadequate for studying the influence of structure and connectivity on ecological processes within DENs. We propose a conceptual taxonomy of network analysis methods that account for DEN characteristics to varying degrees and provide a synthesis of the different …

Eu Water Governance: Striking The Right Balance Between Regulatory Flexibility And Enforcement?, Olivia Odom Green, Ahjond S. Garmestani, Helena F. M. W. Van Rijswick, Andrea M. Keessen

United States Environmental Protection Agency: Publications

Considering the challenges and threats currently facing water management and the exacerbation of uncertainty by climate change, the need for flexible yet robust and legitimate environmental regulation is evident. The European Union took a novel approach toward sustainable water resource management with the passage of the EU Water Framework Directive in 2000. The Directive promotes sustainable water use through long-term protection of available water resources, progressively reduces discharges of hazardous substances in ground and surface waters, and mitigates the effects of floods and droughts. The lofty goal of achieving good status of all waters requires strong adaptive capacity, given the …

Chapter 13: Climate Adaptations In The Southeast Usa, Kirstin Dow, Lynne Carter, Ashley Brosius, Ernesto Diaz, Rick Durbrow, Rhonda Evans, Stephanie Fauver, Tim Hayden, Bob Howard, Kasey Jacobs, Glenn Landers, Steve Mcnulty, Janine Nicholson, Dale Quattrochi, Linda Rimer, Scott Shuford, Skip Stiles, Adam Terando

United States Environmental Protection Agency: Publications

Climate adaptation activities are currently under way around the Southeast (SE). Efforts by local, state, and federal agencies include identification of relevant climate impacts, assessment of significant risks and vulnerabilities, and the creation of partnerships to support planning. In addition to specific projects, adaptive capacity also is being established through monitoring, research, and outreach. This analysis draws on multiple efforts to inventory adaptation in the SE. The authors of this chapter identified few advanced examples of plans and projects that have been implemented. However because of the number of efforts, diversity of groups involved, the mainstreaming of efforts, and the …

Hydrographic Surveys Of The Missouri And Yellowstone Rivers At Selected Bridges And Through Bismarck, North Dakota, During The 2011 Flood, Brenda K. Densmore, Kellan R. Strauch, Benjamin J. Dietsch

United States Geological Survey: Water Reports and Publications

The United States Geological Survey (USGS), in cooperation with the North Dakota Department of Transportation and the North Dakota State Water Commission, completed hydrographic surveys at six Missouri River bridges and one Yellowstone River bridge during the 2011 flood of the Missouri River system. Bridges surveyed are located near the cities of Cartwright, Buford, Williston, Washburn, and Bismarck, N. Dak. The river in the vicinity of the bridges and the channel through the city of Bismarck, N. Dak., were surveyed. The hydrographic surveys were conducted using a high-resolution multibeam echosounder (MBES), the RESON SeaBatTM 7125, during June 6–9 and June …

Assessment Of Coal Geology, Resources, And Reserve Base In The Powder River Basin, Wyoming And Montana, James A. Luppens, David C. Scott, Lee M. Osmonson, Jon E. Haacke, Paul E. Pierce

United States Geological Survey: Publications

Using a geology-based assessment methodology, the U.S. Geological Survey estimated in-place resources of 1.07 trillion short tons of coal in the Powder River Basin, Wyoming and Montana. Of that total, with a maximum stripping ratio of 10:1, recoverable coal was 162 billion tons. The estimate of economically recoverable resources was 25 billion tons.

What Are The Toxicological Effects Of Mercury In Arctic Biota?, Rune Dietz, Christian Sonne, Niladri Basu, Birgit Braune, Todd O'Hara, Robert J. Letcher, Tony Scheuhammer, Magnus Andersen, Claus Andreasen, Dennis Andriashek, Gert Asmund, Aurore Aubail, Hans Baagøe, Erik W. Born, Hing M. Chan, Andrew E. Derocher, Philippe Grandjean, Katrina Knott, Maja Kirkegaard, Anke Krey, Nick Lunn, Francoise Messier, Marty Obbard, Morten T. Olsen, Sonja Ostertag, Elizabeth Peacock, Aristeo Renzoni, Frank F. Rigét, Janneche Utne Skaare, Gary Stern, Ian Stirling, Mitch Taylor, Øystein Wiig, Simon Wilson, Jon Aars

United States Geological Survey: Staff Publications

This review critically evaluates the available mercury (Hg) data in Arctic marine biota and the Inuit population against toxicity threshold values. In particular marine top predators exhibit concentrations of mercury in their tissues and organs that are believed to exceed thresholds for biological effects. Species whose concentrations exceed threshold values include the polar bears (Ursus maritimus), beluga whale (Delphinapterus leucas), pilot whale (Globicephala melas), hooded seal (Cystophora cristata), a few seabird species, and landlocked Arctic char (Salvelinus alpinus). Toothed whales appear to be one of the most vulnerable groups, with …

Modeling Rain-Fed Maize Vulnerability To Droughts Using The Standardized Precipitation Index From Satellite Estimated Rainfall-Southern Malawi Case Study, Harikishan Jayanthi, Gregory J. Husak, Chris Funk, Tamuka Magadzire, Adams Chavula, James P. Verdin

United States Geological Survey: Staff Publications

During 1990s, disaster risk reduction emerged as a novel, proactive approach to managing risks from natural hazards. The World Bank, USAlD, and other international donor agencies began making efforts to mainstream disaster risk reduction in countries whose population and economies were heavily dependent on rain-fed agriculture. This approach has more significance in light of the increasing climatic hazard patterns and the climate scenarios projected for different hazard prone countries in the world. The Famine Early Warning System Network (FEWS NET) has been monitoring the food security issues in the sub-Saharan Africa, Asia and in Haiti. FEWS NET monitors the rainfall …

Characterizing Ledaps Surface Reflectance Products By Comparisons With Aeronet, Field Spectrometer, And Modis Data, T.K. Maiersperger, P.L. Scaramuzza, L. Leigh, S. Shrestha, K.P. Gallo, C.B. Jenkerson, J.L. Dwyer

United States Geological Survey: Staff Publications

This study provides a baseline quality check on provisional Landsat Surface Reflectance (SR) products as generated by the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center using Landsat Ecosystem Disturbance Adaptive Processing System (LEDAPS) software. Characterization of the Landsat SR products leveraged comparisons between aerosol optical thickness derived from LEDAPS and measured by Aerosol Robotic Network (AERONET), as well as reflectance correlations with field spectrometer and Moderate Resolution Imaging Spectroradiometer (MODIS) data. Results consistently indicated similarity between LEDAPS and alternative data products in longer wavelengths over vegetated areas with no adjacent water, while less reliable performance was …

An Investigation Of The Differences Between Real Time Mesoscale Analysis And Observed Meteorological Conditions At Raws Stations In The Northeast United States, Joseph J. Charney, Shiyuan Zhong, Michael T. Kiefer, Xiaoqing Zhu, Greg Soter, Adam Cinderich

Joint Fire Science Program Research Project Reports

This project investigates the differences between the gridded meteorological fields produced by the Real Time Mesoscale Analysis (RTMA) and observed meteorological conditions at Remote Automated Weather Stations (RAWS) for two years in the northeastern United States. National Weather Service (NWS) fire weather forecasts are produced using the National Digital Forecast Database (NDFD), which is a gridded analysis of meteorological fields generated by forecasters at NWS forecast offices nationwide. The NDFD is verified by comparing its gridded meteorological fields against the RTMA, which is an advanced modeling and data assimilation system that provides the best-available hourly gridded estimate of surface and …

Development Of Modeling Tools For Predicting Smoke Dispersion From Low-Intensity Fires, Warren E. Heilman, Shiyuan Zhong, John L. Hom Dr., Joseph J. Charney

Joint Fire Science Program Research Project Reports

Of particular concern to fire and air-quality management communities throughout the U.S. are the behavior and air-quality impacts of low-intensity prescribed fires for fuels management. For example, smoke from prescribed fires, which often occur in wildland-urban interface (WUI) areas and in areas where forest vegetation has a significant impact on the local meteorology, can linger for relatively long periods of time and have an adverse effect on human health. Smoke from wildland fires can also reduce visibility over roads and highways in the vicinity of and downwind of these fires, reducing the safety of our transportation system. The planning for …

The Economic Effects Of Large Wildfires, Cassandra Mosley Dr., Krista Gebert, Pamela Jakes Dr., Laura Leete Dr., Max Nielsen-Pincus Dr., Emily Jane Davis Dr., Autumn Ellison, Cody Evers, Branden Rishel, Shiloh Sundstrom

Joint Fire Science Program Research Project Reports

Large wildfires disrupt the lives of workers, families, and employers. However, fire suppression and recovery efforts may provide economic opportunities. Unlike with other natural hazards, there has been little research about how wildfires affect local economies. The purpose of this project was to analyze the effects of large wildfires on labor markets and examine how fire suppression spending may mediate these effects. Main findings from this research suggest that (1) in the short term, labor market impacts from large wildfires are positive during the course of a fire, (2) in the long-­‐term, large wildfires lead to greater economic instability by …

Cost-Effectiveness Analysis Of Sandhill Crane Habitat Management, Andrew C. Kessler, James W. Merchant, Steven D. Shultz, Craig R. Allen

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Invasive species often threaten native wildlife populations and strain the budgets of agencies charged with wildlife management. We demonstrate the potential of cost-effectiveness analysis to improve the efficiency and value of efforts to enhance sandhill crane (Grus canadensis) roosting habitat. We focus on the central Platte River in Nebraska (USA), a region of international ecological importance for migrating avian species including sandhill cranes. Cost-effectiveness analysis is a valuation process designed to compare alternative actions based on the cost of achieving a pre-determined objective. We estimated costs for removal of invasive vegetation using geographic information system simulations and calculated …

“All In” For Composition Education: Opportunities And Challenges For Pre-Service Music Teacher Curricula, John W. Richmond

Glenn Korff School of Music: Faculty Publications

The editors of this volume have asked me to describe our pre-service teacher education program that includes a concentration in music composition education. Naturally, I am pleased and flattered to do so. The considerable journey that we have begun at the University of Nebraska-Lincoln (UNL) to bring this program into being has been extremely rewarding, occasionally frustrating, and always remarkably challenging. Indeed, it remains rewarding, frustrating, and challenging today.

. . .

This narrative will address the set of practical questions that so often dominate discussions I have had about this curriculum when I have been asked to speak about …

Climate Change Beliefs, Concerns, And Attitudes Toward Adaptation And Mitigation Among Farmers In The Midwestern United States, J. Gordon Arbuckle, Linda Stalker Prokopy, Tonya Haigh, Jon Hobbs, Tricia Knoot, Cody Knutson, Adam Loy, Amber Saylor Mase, Jean Mcguire, Lois Wright Morton, John Tyndall, Melissa Widhalm

National Drought Mitigation Center: Faculty Publications

A February 2012 survey of almost 5,000 farmers across a region of the U.S. that produces more than half of the nation’s corn and soybean revealed that 66% of farmers believed climate change is occurring (8% mostly anthropogenic, 33% equally human and natural, 25% mostly natural), while 31% were uncertain and 3.5% did not believe that climate change is occurring. Results of initial analyses indicate that farmers’ beliefs about climate change and its causes vary considerably, and the relationships between those beliefs, concern about the potential impacts of climate change, and attitudes toward adaptive and mitigative action differ in systematic …

Spatial Distribution Of G6pd Deficiency Variants Across Malaria-Endemic Regions, Rosalind E. Howes, Mewahyu Dewi, Frederic B. Piel, Wuelton M. Monteiro, Katherine E. Battle, Jane P. Messina, Anavaj Sakuntabhai, Thomas N. Williams, J. Kevin Baird, Simon I. Hay

United States Public Health Resources

Background: Primaquine is essential for malaria control and elimination since it is the only available drug preventing multiple clinical attacks by relapses of Plasmodium vivax. It is also the only therapy against the sexual stages of Plasmodium falciparum infectious to mosquitoes, and is thus useful in preventing malaria transmission. However, the difficulties of diagnosing glucose-6-phosphate dehydrogenase deficiency (G6PDd) greatly hinder primaquine’s widespread use, as this common genetic disorder makes patients susceptible to potentially severe and fatal primaquine-induced haemolysis. The risk of such an outcome varies widely among G6PD gene variants.

Methods: A literature review was conducted to identify surveys of …

Economic Value Of Managing Genetics—How To Capture The Value?, Lisa M. Elliott

Range Beef Cow Symposium

Capturing value from managing beef genetic depends on three key complementary components—genetic management, organization design, and market differentiation. Without complementary changes to organization and market differentiation mechanisms, value from better management of beef genetics may not be fully captured, or beef genetics may be undermanaged. The purpose of this paper is to frame the problem of obtaining optimal beef genetic management as identifying, and employing, complementary organization arrangements and market differentiation mechanisms that reduce transaction costs and facilitate greater beef genetic management. The paper concludes with specific recommendations for northern beef producers to improve capturing the value of greater genetic …