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1555 full-text articles. Page 1 of 57.

Modeling Mayfly Nymph Length Distribution And Population Dynamics Across A Gradient Of Stream Temperatures And Stream Types, Jeremy Anthony, Jennifer Baccam, Imanuel Bier, Emily Gregg, Leif Halverson, Ryan Mulcahy, Emmanuel Okanla, Samira A. Osman, Adam R. Pancoast, Kevin C. Schultz, Alex Sushko, Jennifer Vorarath, Yia Vue, Austin Wagner, Emily Gaenzle Schilling, John M. Zobitz 2018 Augsburg College

Modeling Mayfly Nymph Length Distribution And Population Dynamics Across A Gradient Of Stream Temperatures And Stream Types, Jeremy Anthony, Jennifer Baccam, Imanuel Bier, Emily Gregg, Leif Halverson, Ryan Mulcahy, Emmanuel Okanla, Samira A. Osman, Adam R. Pancoast, Kevin C. Schultz, Alex Sushko, Jennifer Vorarath, Yia Vue, Austin Wagner, Emily Gaenzle Schilling, John M. Zobitz

Spora: A Journal of Biomathematics

We analyze a process-based temperature model for the length distribution and population over time of mayfly nymphs. Model parameters are estimated using a Markov Chain Monte Carlo parameter estimation method utilizing length distribution data at five different stream sites. Two different models (a standard exponential model and a modified Weibull model) of mayfly mortality are evaluated, where in both cases mayfly length growth is a function of stream temperature. Based on model-data comparisons to the modeled length distribution and the Bayesian Information Criterion, we found that approaches that length distribution data can reliably estimate 2–3 model parameters. Future model ...


Modeling Mayfly Nymph Length Distribution And Population Dynamics Across A Gradient Of Stream Temperatures And Stream Types, Jeremy Anthony, Jennifer Baccam, Imanuel Bier, Emily Gregg, Leif Halverson, Ryan Mulcahy, Emmanuel Okanla, Samira A. Osman, Adam R. Pancoast, Kevin C. Schultz, Alex Sushko, Jennifer Vorarath, Yia Vue, Austin Wagner, Emily Gaenzle Schilling, John Zobitz 2018 Augsburg University

Modeling Mayfly Nymph Length Distribution And Population Dynamics Across A Gradient Of Stream Temperatures And Stream Types, Jeremy Anthony, Jennifer Baccam, Imanuel Bier, Emily Gregg, Leif Halverson, Ryan Mulcahy, Emmanuel Okanla, Samira A. Osman, Adam R. Pancoast, Kevin C. Schultz, Alex Sushko, Jennifer Vorarath, Yia Vue, Austin Wagner, Emily Gaenzle Schilling, John Zobitz

Faculty Authored Articles

We analyze a process-based temperature model for the length distribution and population over time of mayfly nymphs. Model parameters are estimated using a Markov Chain Monte Carlo parameter estimation method utilizing length distribution data at five different stream sites. Two different models (a standard exponential model and a modified Weibull model) of mayfly mortality are evaluated, where in both cases mayfly length growth is a function of stream temperature. Based on model-data comparisons to the modeled length distribution and the Bayesian Information Criterion, we found that approaches that length distribution data can reliably estimate 2–3 model parameters. Future model ...


Colonialism And Its Aftermaths In Vieques, Puerto Rico: How U.S. Hegemony Led To Contamination, A Superfund Site, And Local Mistrust, Kaya Mark 2018 Scripps College

Colonialism And Its Aftermaths In Vieques, Puerto Rico: How U.S. Hegemony Led To Contamination, A Superfund Site, And Local Mistrust, Kaya Mark

Scripps Senior Theses

After sixty-two years of U.S. military testing, the small Puerto Rican island of Vieques and its residents continue to fight against ongoing environmental and social effects of U.S. hegemony. Starting with the arrival of the Spanish, then with U.S. occupation and use of Vieques as a military stopover, Viequense residents are used to U.S. governmental presence on their land. Despite the military’s removal from Vieques in 2003, many local residents have a fundamental lack of trust for the U.S. government. Because of this lack of trust and transparency with U.S. governmental actions in ...


Call For Abstracts - Resrb 2018, June 18-20, Brussels, Belgium, Wojciech M. Budzianowski 2017 Wojciech Budzianowski Consulting Services

Call For Abstracts - Resrb 2018, June 18-20, Brussels, Belgium, Wojciech M. Budzianowski

Wojciech Budzianowski

No abstract provided.


Registration Form Resrb 2018, Wojciech M. Budzianowski 2017 Wojciech Budzianowski Consulting Services

Registration Form Resrb 2018, Wojciech M. Budzianowski

Wojciech Budzianowski

No abstract provided.


Abstract Template Resrb 2018, Wojciech M. Budzianowski 2017 Wojciech Budzianowski Consulting Services

Abstract Template Resrb 2018, Wojciech M. Budzianowski

Wojciech Budzianowski

No abstract provided.


Energy Star Tax Holiday Simply Advertising Gimmick, Lauren Klaasmeyer 2017 University of Nebraska - Lincoln

Energy Star Tax Holiday Simply Advertising Gimmick, Lauren Klaasmeyer

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

In January of this year, Senator Harr introduced Legislative Bill 325. From 12:01 A.M. on the first Friday of October through midnight of the first Sunday, all Energy Star products less than $1500 will be exempt from sales and use taxes. The special interest group, Nebraska Retail Federation, proposed the idea to Senator Harr. There was no move to advance the bill last session, so it could be brought back up this coming session or amended to another bill. When speaking with people at the capitol, it was said that the main reason it was not advanced was ...


The Fossil Fuel Energy Industry Vs. The Endangered Species Act, Cody Willnerd 2017 University of Nebraska - Lincoln

The Fossil Fuel Energy Industry Vs. The Endangered Species Act, Cody Willnerd

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

It was several weeks ago that the Congressional Republicans made a push to reform the landmark Endangered Species Act to make it more friendly to landowners and fossil fuel industries. They would do this by releasing species earlier on the ESA list than before and instead focus on species that are in the greatest of need of attention. The reform would also have agencies focus on the economic costs to deny listings of species, require the agency to listen towards states concerns, and limit payouts for attorney fees in ESA litigations. This would be incredibly damaging to many species that ...


Building Our Way To A Better Future, Brad Shaner 2017 University of Nebraska - Lincoln

Building Our Way To A Better Future, Brad Shaner

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

The potential demolishing of the Clean Power Plan by the federal government in early October is looking like a losing fight in our war against carbon emissions at one of the biggest sources of these emissions. But we can continue to fight in this war and make an even bigger impact by focusing our efforts on the most ordinary and consistent thing in our modern lives; the buildings we live and work in. Some would say that high efficiency or green buildings are a commodity that only the wealthy individuals or businesses can achieve, but this doesn’t have to ...


Cardboard Ban Is An Investment Opportunity, John Schwaninger 2017 University of Nebraska - Lincoln

Cardboard Ban Is An Investment Opportunity, John Schwaninger

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

Lincoln’s cardboard ban was a hot topic in 2016, but 2017 has shifted focus to the city’s recycling education contract. Gone is discussion of Mayor Chris Beutler’s failed, revived and ultimately victorious struggle to reform Lincoln’s recycling program. In its place, an air of financial discomfort stagnates over the city’s already troubled budget.

The cardboard ban will take effect April 2018. The recycling education program was drafted in part to support the ban by educating households about recycling drop-off locations and sorting requirements. However, the recycling education contract’s $850,000 cost raised eyebrows, undermining ...


How Innovative Companies Gain From A Cap And Trade Agreement, Lucian Montgomery 2017 University of Nebraska - Lincoln

How Innovative Companies Gain From A Cap And Trade Agreement, Lucian Montgomery

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

The purpose of both a cap and trade agreement and a carbon tax is to reduce emissions by setting a price on carbon. However, that is where the similarities end.

A cap and trade agreement gives a certain amount of allowances to each company that adds up to an emissions cap, allows companies to trade them. Companies only pay for carbon emissions if they produce more than the amount of allowances they are given, either by paying penalties to the government, or by buying more allowances from other companies. This creates a market for allowances, and based on demand, sets ...


The Tax That Will Actually Do Something Is Not In The Current Bill, Steven Kirchner 2017 University of Nebraska - Lincoln

The Tax That Will Actually Do Something Is Not In The Current Bill, Steven Kirchner

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

If we are going to be talking about tax reform, we should be talking about solutions that will actually solve a problem. The combustion of fossil fuels has much more than environmental implications. Burning fossil fuels is a blatant catastrophe for our entire economic system. The current American energy market is entirely reliant on fossil fuels (coal, oil, and natural gas). Negative externalities have flooded the American economic system because of the combustion of fossil fuels. A negative externality is a cost that indirectly affects someone outside of the economic transaction. That third party entity must bear the burden of ...


Recent Increase In Deadly Storms, Westin Longacre 2017 University of Nebraska - Lincoln

Recent Increase In Deadly Storms, Westin Longacre

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

These last few years have hit us with some devastating storms that continue to wreck havoc on our earth. We have been hit with multiple storms that are so strong that they are predicted to happen every 50 years, so is God punishing us? Or do we have something to do with this? This issue should be a huge concern to us because who knows how many more of these devastating storms we can handle. When looking at why these tragic storms are happening more frequently the main factor that is leading to these events is the increase in atmospheric ...


Palm Oil: The Hidden Costs, Rachel Goehring 2017 University of Nebraska - Lincoln

Palm Oil: The Hidden Costs, Rachel Goehring

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

ENSC 230. Energy and the Environment: Economics and Policy

12/7/2017

Palm Oil: The Hidden Costs

Lurking behind your soaps, cosmetics, pantry groceries, and household cleaning supplies is a product killing endangered species in Southeast Asia. This same product is destroying the survival mechanisms for local communities in Southeast Asia while pumping large amounts of greenhouse gas emissions into the atmosphere. To keep its identity hidden, it uses over twenty different names on ingredient labels. What is this product? Palm oil. Palm oil is the most widely used vegetable oil in the world and increased demand for palm oil ...


Eliminate The Carbon Externality, Connor Mcfayden 2017 University of Nebraska - Lincoln

Eliminate The Carbon Externality, Connor Mcfayden

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

Before we do anything else, let’s establish two things: the global climate is changing at an alarming rate and the primary cause is human CO2 emissions. There is a worldwide scientific consensus on this fact. Even our own government, despite a remarkably vocal minority, has confirmed this. A report released this year by 13 government agencies identifies humans as the primary cause of global climate change and links this phenomenon to rising sea levels, increased incidence of droughts and floods, and the intensification of large storms. These events are the result of the carbon externality, the social costs of ...


A Forgotten Resource: Thorium, Daniel Rico 2017 University of Nebraska - Lincoln

A Forgotten Resource: Thorium, Daniel Rico

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

The year is 1945, the morning of August 6th, 8:16am to be exact. The United States just dropped the world’s first militarized atomic weapon on Hiroshima, Japan. With this singular act the world virtually witnessed the end of its second world war, the birth of warfare like never before, and the foreseeable death of nuclear power. With this act an aura of negativity and destruction accompanied the word nuclear that it would likely never be rid of despite untapped high grade energy potential that can outweigh its military application. The bomb dropped on Hiroshima was composed of ...


Lithium-Ion Batteries: It’S Not About The Lithium., Jace Kranau 2017 University of Nebraska - Lincoln

Lithium-Ion Batteries: It’S Not About The Lithium., Jace Kranau

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

Malnourished children and tired men chip away with ancient tools at Cobalt-containing rock for you to have the next best electronic device. The impoverished, artisanal workers of the Democratic Republic of Congo (DRC) supply up to 25 percent of global Cobalt according to The Washington Post. The battery manufacturers don’t care. Their dominant thought is profit.

Artisanal workers are paid between two and three U.S. dollars a day. “We are suffering. And our suffering is for what?”, 29-year-old digger, Nathan Muyamba, told The Post.

The batteries in phones, laptops and for some, their cars, contain Lithium, Cobalt, Nickel ...


Gmo Regulations Are Killing Biofuels, Megan Franklin 2017 University of Nebraska - Lincoln

Gmo Regulations Are Killing Biofuels, Megan Franklin

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

Progress in creating profitable biofuels is being slowed down by strict regulations on genetically engineered (GE) crops (aka GMOs). Setbacks that biofuels face can be addressed with genetic engineering. However, public pushback and regulations make it extremely difficult to implement solutions. We should have more lenient regulations on GE crops so that we can speed up the progress of improving biofuels.

A genetically engineered crop is one that has DNA from a different species inserted into its own DNA. As a result from GE crop benefits, CO2 emissions were reduced by 26.7 billion kg in 2012, and poverty was ...


Crop Productivity In The Ag Belt On Borrowed Time, Logan Winters 2017 University of Nebraska - Lincoln

Crop Productivity In The Ag Belt On Borrowed Time, Logan Winters

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

Most people by now have heard the terms “climate change” and global warming. Many acknowledge that it’s a problem, but they may not know how it can impact them directly. This is especially true for those living in the middle of the country, because most of the media attention goes to the coastal impacts of climate change. While putting adequate focus on the coastal impacts is a good start, since the most widespread and severe impacts will be coastal, but there needs to be more talk and discussion about the future impacts over the middle of the country. One ...


Wind Is Nebraska’S Future, With Or Without The Clean Power Plan, Megan Pamperin 2017 University of Nebraska - Lincoln

Wind Is Nebraska’S Future, With Or Without The Clean Power Plan, Megan Pamperin

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

The Clean Power Plan was issued in October 2015. President Trump called for a review of the plan this March and on October 16th, 2017 the EPA released a proposal to repeal it. The Clean Power Plan would have reduced Nebraska’s state emissions to 22,250,000 tons of carbon dioxide by 2024, down by about 5 million tons compared to 2012 emissions.1 The new projection for 2020 without the plan is 34 million tons of CO2 emitted.

Coal and other fossil fuel energy sources are the main culprits of these carbon emissions, and here in ...


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