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Modeling Irrigation Behavior In Groundwater Systems, Timothy Foster, Nicholas Brozovic, Adrian P. Butler 2019 Imperial College London

Modeling Irrigation Behavior In Groundwater Systems, Timothy Foster, Nicholas Brozovic, Adrian P. Butler

Water for Food Faculty Publications

Integrated hydro-economic models have been widely applied to water management problems in regions of intensive groundwater-fed irrigation. However, policy interpretations may be limited as most existing models do not explicitly consider two important aspects of observed irrigation decision making, namely the limits on instantaneous irrigation rates imposed by well yield and the intraseasonal structure of irrigation planning. We develop a new modeling approach for determining irrigation demand that is based on observed farmer behavior and captures the impacts on production and water use of both well yield and climate. Through a case study of irrigated corn production in the Texas ...


Water Productivity In Meat And Milk Production In The Us From 1960 To 2016, Mesfin Mergia Mekonnen, C.M.U. Neale, Chittaranjan Ray, Galen E. Erickson, Arjen Y. Hoekstra 2019 University of Nebraska - Lincoln

Water Productivity In Meat And Milk Production In The Us From 1960 To 2016, Mesfin Mergia Mekonnen, C.M.U. Neale, Chittaranjan Ray, Galen E. Erickson, Arjen Y. Hoekstra

Water for Food Faculty Publications

Global demand for livestock products is rising, resulting in a growing demand for feed and potentially burdening freshwater resources to produce this feed. To offset this increased pressure on water resources, the environmental performance of livestock sector should continue to improve. Over the last few decades, product output per animal and feedstuff yields in the US have improved, but before now it was unclear to what extent these improvements influenced the water productivity (WP) of the livestock products. In this research, we estimate changes in WP of animal products from 1960 to 2016. We consider feed conversion ratios (dry matter ...


Do Environmental Responsibility Views Influence Investors’ Use Of Environmental Performance And Assurance Information?, William N. Dilla, Diane J. Janvrin, Jon D. Perkins, Robyn Raschke 2019 Iowa State University

Do Environmental Responsibility Views Influence Investors’ Use Of Environmental Performance And Assurance Information?, William N. Dilla, Diane J. Janvrin, Jon D. Perkins, Robyn Raschke

Diane J. Janvrin

Purpose – The purpose of this study is to investigate whether investor views regarding the benefits of corporate environmental responsibility moderate the influence of environmental performance and assurance information on their judgments. Specifically, the authors examine the effects of two broad views: environmental responsibility is more important than financial performance, regardless of investment returns (i.e. environmental responsibility importance) and positive environmental performance will increase investment returns (i.e. environmental performance return).

Design/methodology/approach – Nonprofessional investors completed an online study where environmental performance (high or low) and assurance on environmental performance information (present or absent) were varied. Participants’ corporate environmental ...


Operationalizing Ecological Resilience Concepts For Managing Species And Ecosystems At Risk, Jeanne C. Chambers, Craig R. Allen, Samuel A. Cushman 2019 USDA FS, Reno, NV

Operationalizing Ecological Resilience Concepts For Managing Species And Ecosystems At Risk, Jeanne C. Chambers, Craig R. Allen, Samuel A. Cushman

Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications

This review provides an overview and integration of the use of resilience concepts to guide natural resources management actions. We emphasize ecosystems and landscapes and provide examples of the use of these concepts from empirical research in applied ecology. We begin with a discussion of definitions and concepts of ecological resilience and related terms that are applicable to management. We suggest that a resilience-based framework for management facilitates regional planning by providing the ability to locate management actions where they will have the greatest benefits and determine effective management strategies. We review the six key components of a resilience-based framework ...


Evaluating Oyster Aquaculture’S Cost-Effectiveness As A Nitrogen Removal Best Management Practice – A Case Study Of The Delaware Inland Bays, Jefferson F. Flood 2019 University of Delaware

Evaluating Oyster Aquaculture’S Cost-Effectiveness As A Nitrogen Removal Best Management Practice – A Case Study Of The Delaware Inland Bays, Jefferson F. Flood

Journal of Ocean and Coastal Economics

Disease and overfishing have led to a dramatic decline in wild populations and subsequent harvests of the eastern oyster Crassostrea virginica over the past few decades in Delaware and other states along the Atlantic Coast. However, in addition to their value as food to consumers, oysters, whether wild populations or cultured stocks, can provide ecosystem services such as nutrient removal, which may result in localized water quality improvements. Consequently, recent policies in Delaware have sought to establish and grow an oyster aquaculture industry. However, a key challenge to achieving efficient levels of industry growth and water quality improvements is that ...


Landscape Edges Shape Dispersal And Population Structure Of A Migratory Fish, Mark A. Kaemingk, S. E. Swearer, S. J. Bury, J. S. Shima 2019 University of Nebraska - Lincoln

Landscape Edges Shape Dispersal And Population Structure Of A Migratory Fish, Mark A. Kaemingk, S. E. Swearer, S. J. Bury, J. S. Shima

Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications

Many freshwater organisms have a life-history stage that can disperse through seawater. This has obvious benefits for colonization and connectivity of fragmented sub-populations, but requires a physiologically challenging migration across a salinity boundary. We consider the role of landscape boundaries between freshwater and seawater habitats, and evaluate their potential effects on traits and developmental histories of larvae and juveniles (i.e., dispersing life-history stages) of an amphidromous fish, Galaxias maculatus. We sampled juvenile fish on their return to 20 rivers in New Zealand: 10 rivers had abrupt transitions to the sea (i.e., emptying to an open coastline); these were ...


Shale Play: Poems And Photographs From The Fracking Fields By Julia Spicher Kasdorf And Steven Rubin, Kelly Shepherd 2019 Northern Alberta Institute of Technology

Shale Play: Poems And Photographs From The Fracking Fields By Julia Spicher Kasdorf And Steven Rubin, Kelly Shepherd

The Goose

Review of Julia Spicher Kasdorf and Steven Rubin's Shale Play: Poems and Photographs from the Fracking Fields


Aquatic Invasive Species Change Ecosystem Services From The World's Largest Wild Sockeye Salmon Fisheries In Alaska, Tobias Schwoerer, Joseph M. Little, Milo D. Adkison 2019 University of Alaska Anchorage

Aquatic Invasive Species Change Ecosystem Services From The World's Largest Wild Sockeye Salmon Fisheries In Alaska, Tobias Schwoerer, Joseph M. Little, Milo D. Adkison

Journal of Ocean and Coastal Economics

This study combines a multi-method approach to structured expert judgment with market valuation to forecast fisheries damages from introduced invasive species. The method is applied to a case study of Alaska’s first submersed aquatic invasive plant, Elodea spp., threatening Alaska’s salmon fisheries. Assuming that Elodea spp. remains unmanaged, estimated mean damages to commercial sockeye fisheries aggregated across Alaska amount to a potential $159 million annually with a 5% chance of exceeding $577 million annually ($2015 USD). The associated mean loss of natural capital amounts to $5.1 billion cumulatively over the next 100 years reaching $400 million after ...


The State Of Canada’S Birds 2019, North American Bird Conservation Initiative Canada 2019 North American Bird Conservation Initiative Canada

The State Of Canada’S Birds 2019, North American Bird Conservation Initiative Canada

Other Publications in Wildlife Management

BIRDS TELL US ABOUT THE HEALTH OF OUR WATER, AIR, AND LAND WE NEED TO LISTEN AND ACT

THE STATE OF CANADA’S BIRDS: Shorebirds, grassland birds, and aerial insectivores are in steep decline.

WATERFOWL AND WETLAND BIRDS CONSERVATION PARTNERSHIPS WORK

GRASSLAND BIRDS ARE RUNNING OUT OF TIME

SHOREBIRDS ARE LOSING GROUND

SEABIRDS A GLOBAL CONSERVATION CRISIS

FOREST BIRDS CONSERVATION WITHOUT BORDERS

BIRDS OF PREY AND AERIAL INSECTIVORES LEARNING FROM THE PAST

WHAT’S GOOD FOR BIRDS IS GOOD FOR US

CANADIANS ARE MONITORING THE STATE OF CANADA’S BIRDS


Do Environmental Responsibility Views Influence Investors’ Use Of Environmental Performance And Assurance Information?, William N. Dilla, Diane J. Janvrin, Jon D. Perkins, Robyn Raschke 2019 Iowa State University

Do Environmental Responsibility Views Influence Investors’ Use Of Environmental Performance And Assurance Information?, William N. Dilla, Diane J. Janvrin, Jon D. Perkins, Robyn Raschke

Accounting Publications

Purpose – The purpose of this study is to investigate whether investor views regarding the benefits of corporate environmental responsibility moderate the influence of environmental performance and assurance information on their judgments. Specifically, the authors examine the effects of two broad views: environmental responsibility is more important than financial performance, regardless of investment returns (i.e. environmental responsibility importance) and positive environmental performance will increase investment returns (i.e. environmental performance return).

Design/methodology/approach – Nonprofessional investors completed an online study where environmental performance (high or low) and assurance on environmental performance information (present or absent) were varied. Participants’ corporate environmental ...


The Long-Run Effects Of Tropical Cyclones On Infant Mortality, Isabel Miranda 2019 The University of San Francisco

The Long-Run Effects Of Tropical Cyclones On Infant Mortality, Isabel Miranda

Master's Theses

In the United States alone, each tropical cyclone causes an average of $14.6 billion worth of damages. In addition to the destruction of physical infrastructure, natural disasters also negatively impact human capital formation. These losses are often more difficult to observe, and therefore, are over looked when quantifying the true costs of natural disasters. One particular effect is an increase in infant mortality rates, an important indicator of a country’s general socioeconomic level. This paper utilizes a model created by Anttila-Hughes and Hsiang, that takes advantage of annual variation in tropical cyclones using annual spatial average maximum wind ...


Valuing The Economic Benefits Of Conservation Lands In Downeast Maine, Lesley Lichko 2019 University of Maine

Valuing The Economic Benefits Of Conservation Lands In Downeast Maine, Lesley Lichko

Electronic Theses and Dissertations

Natural ecosystems provide numerous benefits that contribute to humans and the economy, including market goods such as timber and forest products, as well as benefits that are not directly measured in the marketplace, such as wildlife habitat provision and recreational provision. These benefits are collectively known as ecosystem services. Natural ecosystems are under significant pressure to be converted to other uses from factors such as shifts in ownership, land use change, fragmentation and climate change. To counter these effects, and to protect ecosystem services, public and private entities have worked to place land in conservation; however, conservation is often controversial ...


Are Firm Emissions Data Likely To Be Accurate Under Carbon-Dioxide Cap & Trade Programs? An Economic Analysis, Kyle Beck 2019 James Madison University

Are Firm Emissions Data Likely To Be Accurate Under Carbon-Dioxide Cap & Trade Programs? An Economic Analysis, Kyle Beck

Senior Honors Projects, 2010-current

Numerous policy makers around the world have implemented carbon dioxide (CO2) cap and trade programs in an effort to combat global climate change. However, under this policy option emitters face incentives to both overstate prior emission levels and then exaggerate emissions reductions induced by regulation. I first build a simple conceptual model which demonstrates these incentives for fraud, and then outline institutional conditions which could plausibly enhance, or else reduce, firm incentives to disseminate erroneous emissions data under this policy option. Next I analyze real world evidence suggesting that duplicitous emissions data, particularly for the pre-regulatory period, is a serious ...


Does Clean Energy Make Or Break A Country?, Madhav Parthasarathy, Aidan T. Stueck, Xander Van Horn 2019 Illinois Mathematics and Science Academy

Does Clean Energy Make Or Break A Country?, Madhav Parthasarathy, Aidan T. Stueck, Xander Van Horn

Student Leadership Exchange (SLX)

With the world running low on fossil fuels and energy sources, it is as vital as ever to educate ourselves on the newest forms of alternative energy sources. Countries as of now are extremely reliant on energy and this reliance affects all aspects of life including school life, home life, and social life as well. By statistically comparing traits of successful countries to the cleanness of their energy, we can discover the benefits of implementing a clean, efficient energy system to replace the fossil fuels in our country. Whether it be a higher GDP, a thriving economy, or quality education ...


Ecological And Economic Implications Of Increased Storm Frequency And Severity For Boreal Lakes, Kathryn Warner 2019 University of Maine

Ecological And Economic Implications Of Increased Storm Frequency And Severity For Boreal Lakes, Kathryn Warner

Electronic Theses and Dissertations

In boreal regions, increased precipitation events have been linked to increased concentrations of dissolved organic carbon (DOC), however less is known about the extent and implications of these events on lakes. We assessed the effects of precipitation events on six drinking water lakes in Maine, USA to better understand how DOC concentration and quality change in response to precipitation events. Our results revealed three types of responses: (1) an initial spike in DOC concentrations and quality metrics; (2) a sustained increase in DOC concentrations and quality metrics and; (3) no change during all sampling periods. Lake residence time was a ...


Introduction: Social-Ecological Resilience And Law, Ahjond S. Garmestani, Craig R. Allen, Craig Anthony Arnold, Lance H. Gunderson 2019 U.S. Environmental Protection Agency, National Risk Management Research Laboratory

Introduction: Social-Ecological Resilience And Law, Ahjond S. Garmestani, Craig R. Allen, Craig Anthony Arnold, Lance H. Gunderson

Craig Anthony (Tony) Arnold

Environmental law is intimately connected to ecological concepts and understanding. The legal instruments, institutions, and administration of law in the United States are predicated on assumptions that nature is globally stable and that the inherent variability in ecological systems is bounded. This current legal framework is based upon an understanding of ecological systems operating near an equilibrium, or if disturbed, moving back toward an equilibrium. Such assumptions make much current environmental law ill-suited for many pressing environmental issues (Ruhl 1999; Garmestani et al. 2009; Craig 2010; Verchick 2010; Benson and Garmestani 2011). Emerging environmental challenges, such as cross-boundary water governance ...


Quantifying Uncertainty And Trade-Offs In Resilience Assessments, Craig R. Allen, Hannah E. Birgé, David G. Angeler, Craig A. Arnold, Brian C. Chaffin, Daniel A. DeCaro, Ahjond S. Garmestani, Lance Gunderson 2019 University of Nebraska-Lincoln

Quantifying Uncertainty And Trade-Offs In Resilience Assessments, Craig R. Allen, Hannah E. Birgé, David G. Angeler, Craig A. Arnold, Brian C. Chaffin, Daniel A. Decaro, Ahjond S. Garmestani, Lance Gunderson

Craig Anthony (Tony) Arnold

Several frameworks have been developed to assess the resilience of social-ecological systems, but most require substantial data inputs, time, and technical expertise. Stakeholders and practitioners often lack the resources for such intensive efforts. Furthermore, most end with problem framing and fail to explicitly address trade-offs and uncertainty. To remedy this gap, we developed a rapid survey assessment that compares the relative resilience of social-ecological systems with respect to a number of resilience properties. This approach generates large amounts of information relative to stakeholder inputs. We targeted four stakeholder categories: government (policy, regulation, management), end users (farmers, ranchers, landowners, industry), agency ...


Barriers And Bridges To The Integration Of Social–Ecological Resilience And Law, Olivia Odom Green, Ahjond S. Garmestani, Craig R. Allen, Lance H. Gunderson, J.B. Ruhl, Craig A. Arnold, Nicholas A.J. Graham, Barbara Cosens, David G. Angeler, Brian C. Chaffin, C.S. Holling 2019 Atlantic States Legal Foundation, Syracuse, NY

Barriers And Bridges To The Integration Of Social–Ecological Resilience And Law, Olivia Odom Green, Ahjond S. Garmestani, Craig R. Allen, Lance H. Gunderson, J.B. Ruhl, Craig A. Arnold, Nicholas A.J. Graham, Barbara Cosens, David G. Angeler, Brian C. Chaffin, C.S. Holling

Craig Anthony (Tony) Arnold

There is a fundamental difference between the ways in which ecologists and lawyers view uncertainty: in the study of ecology, uncertainty provides a catalyst for exploration, whereas uncertainty is antithetical to the rule of law. This issue is particularly troubling in environmental management, where the tensions between law and ecology become apparent. Rather than acknowledge uncertainties in management actions, legal frameworks often force a false sense of certainty in linking cause and effect. While adaptive management has been developed to deal with uncertainty, laws and legal wrangling can be obstacles to implementation. In this article, we recommend resilience-based governance – “adaptive ...


The Impact Of Trees On Passive Survivability During Extreme Heat Events In Warm And Humid Regions, Ulrike Passe, Janette R. Thompson, Baskar Ganapathysubramanian, Boshun Gao, Breanna L. Marmur 2019 Iowa State University

The Impact Of Trees On Passive Survivability During Extreme Heat Events In Warm And Humid Regions, Ulrike Passe, Janette R. Thompson, Baskar Ganapathysubramanian, Boshun Gao, Breanna L. Marmur

Breanna L. Marmur

Communities are increasingly affected by excessive heat. The likelihood of extreme heat events is predicted to increase in the Midwest region of the United States. By mid-century (2036–2065), one year out of 10 is projected to have a 5-day period that is 13°F warmer than a comparable earlier period (1976–2005). The frequency of high humidity/dew point days (“extra moist tropical air mass days,” MT++ synoptic climate classification system) has also increased significantly during a similar period (1975–2010) and between 2010 and 2014 included 8 of 26 heat events. This impact is exacerbated by the fact ...


The Impact Of Trees On Passive Survivability During Extreme Heat Events In Warm And Humid Regions, Ulrike Passe, Janette R. Thompson, Baskar Ganapathysubramanian, Boshun Gao, Breanna L. Marmur 2019 Iowa State University

The Impact Of Trees On Passive Survivability During Extreme Heat Events In Warm And Humid Regions, Ulrike Passe, Janette R. Thompson, Baskar Ganapathysubramanian, Boshun Gao, Breanna L. Marmur

Natural Resource Ecology and Management Conference Papers, Posters and Presentations

Communities are increasingly affected by excessive heat. The likelihood of extreme heat events is predicted to increase in the Midwest region of the United States. By mid-century (2036–2065), one year out of 10 is projected to have a 5-day period that is 13°F warmer than a comparable earlier period (1976–2005). The frequency of high humidity/dew point days (“extra moist tropical air mass days,” MT++ synoptic climate classification system) has also increased significantly during a similar period (1975–2010) and between 2010 and 2014 included 8 of 26 heat events. This impact is exacerbated by the fact ...


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