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- Environmental studies (7)
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Articles 1 - 30 of 35
Full-Text Articles in Physical Sciences and Mathematics
Invasive Species And Climate Change, Invasive Species Advisory Committee
Invasive Species And Climate Change, Invasive Species Advisory Committee
National Invasive Species Council
ISSUE
Climate change interacts with and can often amplify the negative impacts of invasive species. These interactions are not fully appreciated or understood. They can result in threats to critical ecosystem functions on which our food system and other essential provisions and services depend as well as increase threats to human health. The Invasive Species Advisory Committee to the National Invasive Species Council recognizes the Administration’s commitment to dealing proactively with global climate change. However, unless we recognize and act on the impact of climate change and its interaction with ecosystems and invasive species, we will fall further behind in …
Ecological Impacts Of Stream Bank Stabilization In A Great Plains River, Christopher M. Pracheil
Ecological Impacts Of Stream Bank Stabilization In A Great Plains River, Christopher M. Pracheil
School of Natural Resources: Dissertations, Theses, and Student Research
Reduced ecological complexity, decreased water quality, and accelerated stream bank erosion are common disturbances in rivers with agriculturally dominated watersheds. Massive bank failures, increased sediment loads, and decreased riverine habitat are current problems in the agriculturally dominated Cedar River of central Nebraska. In an effort to slow erosion and prevent further ecological degradation, 20 reach scale stream bank stabilization projects were installed on the Cedar River from 2001 to 2004. The objective of this study was to determine the impact of the Cedar River stream bank stabilization projects on the ecological conditions within the Cedar River. Stream bank erosion, suspended …
Policy And Science Of Geothermal Heat Use At Mcmurdo Station, Antarcrtica, Joe Alvine
Policy And Science Of Geothermal Heat Use At Mcmurdo Station, Antarcrtica, Joe Alvine
Department of Environmental Studies: Undergraduate Student Theses
My thesis research project deals with the use of geothermal heat in Antarctica. Currently it is not allowed due to article 7 of the 1991 Protocol on Environmental Protection that placed a 50 moratorium on the exploitation of mineral resources. The US main base in Antarctica, McMurdo Station is currently powered by diesel generators that are inefficient, cause environmental damage, and is expensive to run. By exploring alternative energy options, McMurdo Station can reduce its dependence on non-renewable energy sources. By determining the geothermal potential of McMurdo Station, this project explores the possibilities and benefits that would occur with the …
Recent Legislation To Promote Wind Energy In Nebraska, Ryan Lemke
Recent Legislation To Promote Wind Energy In Nebraska, Ryan Lemke
Department of Environmental Studies: Undergraduate Student Theses
Nebraska is currently ranked 4th in the nation for wind energy potential, but ranks low in actual wind power production. The lack of wind energy production could be the result of Nebraska’s unique public power districts that have eminent domain of distribution and retail sales of electricity in the State. Public Power districts are prohibited from receiving benefits of state and federal tax incentives for the development of wind farms, however some Nebraska power districts still pursue wind energy as a renewable source of energy.
Recent legislation changes, including the passing of laws LB629 and LB1048, have provided the State …
Droughtscape- Fall 2010, Kelly Smith
Droughtscape- Fall 2010, Kelly Smith
Droughtscape, Quarterly Newsletter of NDMC, 2007-
CDC Issues Drought Guidance for Public Health
La Niña May Intensify Drought in South
Recent Workshops and Meetings
East Feels Impacts as Heat Intensifies Drought
New Products
Nicole Wall Co-Facilitates Republican River Basin Task Force
NDMC Climatologist on Ethiopia Team
Droughtscape- Summer 2010, Kelly Smith
Droughtscape- Summer 2010, Kelly Smith
Droughtscape, Quarterly Newsletter of NDMC, 2007-
Upcoming Workshops
Mild Drought Season Likely to Persist
Drought Impacts Intensify in Upper Midwest
Visiting Scientists
North Carolina Takes Drought Monitor Seriously
International Work- Murcia, Spain, June
River Sediment Sampling Methods- Causeway Building And Removal, Dillon Dittmer
River Sediment Sampling Methods- Causeway Building And Removal, Dillon Dittmer
Department of Environmental Studies: Undergraduate Student Theses
Abstract The Environmental Protection Agency (EPA) and U.S. Fish and Wildlife Service (USFWS) suspect that causeways have a negative impact on river ecology both when installed and when removed. The Nebraska Department of Roads routinely uses causeways as a tool in the construction and repair of bridges. Although research has not been conducted on the impact of causeway building and removal data has been collected about the impact of dams, causeways, etc. on estuaries. This data is considered subjective and authors often cite sampling methods as a source of error. Currently there are no widely used handheld sampling methods that …
Invasive Species And Public Investment In The Green Economy, Invasive Species Advisory Committee
Invasive Species And Public Investment In The Green Economy, Invasive Species Advisory Committee
National Invasive Species Council
Invasive Species and Public Investment in the Green Economy, approved by ISAC on June 24, 2010
ISSUE
Invasive species are intricately linked to the economy. Trade, travel, and transport facilitate their spread. Invasive species management requires extensive human and financial resources. The impacts of invasive species can substantially undermine economic growth and sustainable development. United States Executive Order (EO) 13112 defines invasive species as “alien [non-native] species whose introduction does or is likely to cause economic or environmental harm or harm to human health” and states that Federal agencies should …“not authorize, fund, or carry out actions that are likely …
Marine Bioinvasions And Climate Change, James T. Carlton, Sandra C. Lindstrom, Celia M. Smith, Jennifer E. Smith
Marine Bioinvasions And Climate Change, James T. Carlton, Sandra C. Lindstrom, Celia M. Smith, Jennifer E. Smith
National Invasive Species Council
BACKGROUND
Invasive species are second only to habitat destruction as the greatest cause of species endangerment and global biodiversity loss. Invasive species can cause severe and permanent damage to the ecosystems they invade. Consequences of invasion include competition with or predation upon native species, hybridization, carrying or supporting harmful pathogens and parasites that may affect wildlife and human health, disturbing ecosystem function through alteration of food webs and nutrient recycling rates, acting as ecosystem engineers and altering habitat structure, and degradation of the aesthetic quality of our natural resources. In many cases we may not fully know the native animals …
Droughtscape- Spring 2010, Kelly Smith
Droughtscape- Spring 2010, Kelly Smith
Droughtscape, Quarterly Newsletter of NDMC, 2007-
NDMC and NC Drought Council Team Up
Drought to Intensify in Northwest and Hawaii
International Work
Impacts Recorded in Hawaii and Western States
U.S. Drought Monitor Archives Enhanced
Low-Water Impact Surveys Completed
K-12 Drought Outreach
Minimun Riparian Buffer Width For Maintaining Water Quality And Habitat Along Stevens Creek, Sammi Bray
Minimun Riparian Buffer Width For Maintaining Water Quality And Habitat Along Stevens Creek, Sammi Bray
Department of Environmental Studies: Undergraduate Student Theses
ABSTRACT Riparian buffer zones are important sites of biodiversity, sediment trapping, pollutant removal, and hydrologic regulation that have significant implications for both people and wildlife. Urbanization’s influence on and need for adequate water quality increases the need for careful planning in regards to riparian areas. Wildlife are key components in the ecosystem functions of riparian zones and require consideration in peri-urban planning as well. This study reviews relevant literature to determine the recommended minimum riparian buffer width for maintaining water quality and habitat along Stevens Creek in Lincoln, Nebraska. Only sources that listed a specific purpose related to water quality …
An Artesian Well System In Beaver Crossing, Nebraska- It's Development And Demise, Mary Lanik
An Artesian Well System In Beaver Crossing, Nebraska- It's Development And Demise, Mary Lanik
Department of Environmental Studies: Undergraduate Student Theses
ABSTRACT
Nebraska has a veritable wealth of groundwater. The High Plains Aquifer underlies most of the state, and within its sand and gravel deposits, many interconnected aquifers provide fresh water for a variety of uses.
One of the most spectacular examples of this resource is the artesian well. Beaver Crossing, Nebraska was once home to one of the most prolific artesian systems in the state before its demise. Founded in the 1880’s, Beaver Crossing soon became known for its many artesian wells, that provided leisure activities and supported profitable business ventures such as small farming, ice production and aquiculture. Eventually …
Herbicides And Amphibian Populations, Zach Shirk
Herbicides And Amphibian Populations, Zach Shirk
Department of Environmental Studies: Undergraduate Student Theses
Amphibians are a unique class of species that are found worldwide except Antarctica and Greenland. They range in size from a few millimeters to over six feet long. Amphibian’s habitats are as various as their size, but one thing in common is that amphibians require an aquatic location to breed. Amphibians live in deserts, mountain prairies, rain forest, wetlands, and almost everywhere in between. Amphibians are an integrated part of most natural ecosystems across the world. Amphibians are a critical part of many food chains; they provide the important link between secondary and tertiary consumers. Amphibians are indicator species in …
Relatin Dissolved Oxygen Concentration To Fish Distribution In Jarecki Lake, Adam Sutton
Relatin Dissolved Oxygen Concentration To Fish Distribution In Jarecki Lake, Adam Sutton
Department of Environmental Studies: Undergraduate Student Theses
Abstract Water temperature and dissolved oxygen (DO) profiles were measured once every month from mid July to mid February in a relatively deep sand-pit lake in southeast Nebraska. These profiles showed depleted DO concentrations below the thermocline during summer stratification indicating areas fish will likely avoid in summer months. Colder temperatures in fall caused complete mixing of the water column allowing fish to inhabit all depths of the lake. An inverse temperature stratification occurred directly below the ice during winter months as ice cover cooled the surface water to below 4 degrees Celsius. Ice cover also blocked air – water …
A Proposed Plan For Managing Eastern Nebraska's Saline Wetlands, Vandhana Rabadinanth
A Proposed Plan For Managing Eastern Nebraska's Saline Wetlands, Vandhana Rabadinanth
Department of Environmental Studies: Undergraduate Student Theses
Abstract Eastern Nebraska’s saline wetlands play a major role in Nebraska’s environmental place in the world. Besides the role of scientific changes being important, education also is essential in the conservation of these wetlands. Through the observation of Salt Creek tiger beetle (Cicindela nevadica lincolniana) and soil electroconductivity, I propose that we need to reform Nebraska’s education system to help schools play a bigger part in environmental issues such as this one. There is a drastic trend in the correlations between Salt Creek tiger beetle populations and wetland degradation. Since many Lincoln residents have a limited knowledge of what is …
Distribution Of Dioecious Eastern Red Cedar (Juniperus Virginiana) Along An Environmental Gradient In Ogallala, Ne., Taylor Sloey
Distribution Of Dioecious Eastern Red Cedar (Juniperus Virginiana) Along An Environmental Gradient In Ogallala, Ne., Taylor Sloey
Department of Environmental Studies: Undergraduate Student Theses
Abstract
The purpose of this research was to study the sex distribution and energy allocation of dioecious Eastern Red Cedars (Juniperus virginiana) along an environmental resource gradient. The trees surveyed were growing in a canyon located at the University of Nebraska’s Cedar Point Biological Research Station in Ogallala, Nebraska. Due to the geography of this canyon, environmental factors necessary for plant growth should vary depending on the tree’s location within the canyon. These factors include water availability, sun exposure, ground slope, and soil nitrogen content, all of which are necessary for carbon acquisition.
Juniperus virginiana is a dioecious conifer. Dioecious …
The Influence Of Partial Timber Harvesting In Riparian Buffers On Macroinvertebrate And Fish Communities In Small Streams In Minnesota, Usa, Christopher J. Chizinski, Bruce Vondracek, Charles R. Blinn, Raymond M. Newman, Dickson M. Atuke, Keith Fredricks, Nathaniel A. Hemstad, Eric Merten, Nicholas Schlesser
The Influence Of Partial Timber Harvesting In Riparian Buffers On Macroinvertebrate And Fish Communities In Small Streams In Minnesota, Usa, Christopher J. Chizinski, Bruce Vondracek, Charles R. Blinn, Raymond M. Newman, Dickson M. Atuke, Keith Fredricks, Nathaniel A. Hemstad, Eric Merten, Nicholas Schlesser
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
Relatively few evaluations of aquatic macroinvertebrate and fish communities have been published in peer-reviewed literature detailing the effect of varying residual basal area (RBA) after timber harvesting in riparian buffers. Our analysis investigated the effects of partial harvesting within riparian buffers on aquatic macroinvertebrate and fish communities in small streams from two experiments in northern Minnesota northern hardwood-aspen forests. Each experiment evaluated partial harvesting within riparian buffers. In both experiments, benthic macroinvertebrates and fish were collected 1 year prior to harvest and in each of 3 years after harvest. We observed interannual variation for the macroinvertebrate abundance, diversity and taxon …
Correlation Between Normalized Difference Vegetation Index And Malaria In A Subtropical Rain Forest Undergoing Rapid Anthropogenic Alteration, Nicole M. Wayant, Diego Maldonado, Antonieta Rojas De Arias, Blanca Cousino, Douglas G. Goodin
Correlation Between Normalized Difference Vegetation Index And Malaria In A Subtropical Rain Forest Undergoing Rapid Anthropogenic Alteration, Nicole M. Wayant, Diego Maldonado, Antonieta Rojas De Arias, Blanca Cousino, Douglas G. Goodin
Center for Advanced Land Management Information Technologies: Publications
Time-series of coarse-resolution greenness values derived through remote sensing have been used as a surrogate environmental variable to help monitor and predict occurrences of a number of vector-borne and zoonotic diseases, including malaria. Often, relationships between a remotely-sensed index of greenness, e.g. the normalized difference vegetation index (NDVI), and disease occurrence are established using temporal correlation analysis. However, the strength of these correlations can vary depending on type and change of land cover during the period of record as well as inter-annual variations in the climate drivers (precipitation, temperature) that control the NDVI values. In this paper, the correlation between …
Issue Overview
National Invasive Species Council
What are Invasive Species?
How do invasive species harm the environment?
What do invasive species cost?
Do invasive species harm humans?
Invasive Species
Nisc Overview
National Invasive Species Council
Executive Order (EO) 13112
NISC Members
NISC Staff
ISAC
NISC National Management Plans
Examples of NISC/ISAC Accomplishments
Recent Regulation Changes Regarding Invasive Species In Mexico And The Development Of Mexico’S National Strategy On Invasive Species, Francisco Abarca
Recent Regulation Changes Regarding Invasive Species In Mexico And The Development Of Mexico’S National Strategy On Invasive Species, Francisco Abarca
National Invasive Species Council
Between November 2008 and February 2010, Mexico made several modifications to existing environmental and wildlife regulations regarding invasive species.
On November 2008, the Deputy Chamber made several modifications to the Ecological Equilibrium and Environmental Protection General Law (LGEEPA by its Spanish acronym; equivalent to NEPA), and the Wildlife General Law. These modifications were published in the Federal Register until February 2010.
The intent of these modifications was to strengthen existing regulations by incorporating more specific language dealing with invasive species and make these regulations more in tune with other regulations outside of the wildlife arena, such as the Forestry, …
Nisc Newsletter: September 2010
Nisc Newsletter: September 2010
National Invasive Species Council
Invasive Species In the News
Great Lakes: White House Names Asian Carp Czar (Paul Quinlan)
Experts testify in 5-state carp lawsuit
Snails seized at Dulles Airport
International News
National Invasive Species Strategy for Mexico
NISC Agencies News
Friends of Wild Amphibians
Federal/State News
Restoration for Aleutian Seabirds Brings New Life to Refuge “Rat” Island
Wasps Wage War on Behalf of Wiliwili Trees
Special Event!!
Winds of Change: Great Lakes, Great Oceans, Great Communities
Conferences
Nisc Newsletter: June-July 2010
Nisc Newsletter: June-July 2010
National Invasive Species Council
Invasive Species In The News
Asian Carp Discovered Near Lake Michigan
International News
New: CBD - Subsidiary Body for Science, Technology and Technological Assistance (SBSTTA) meeting in Nairobi, Kenya
UK: Exploring Fish Invasion
Follow the money: wealth, population are key drivers of invasive species
NISC Agencies News
EPA
Climate Change Indicator Report
USDA
USDA/APHIS PPQ Moratorium for Biological Control of Saltcedar (Tamarix species) using the bilological control agent Diorhabda Spe-cies (Coleoptera: Chrytsomelidae)
APHIS
Risk Assessment of the Movement of Fire-wood within the United States
DOI
National Park Service
DOC
NOAA
State News
Research Project: Developing a Regional Risk-Assessment Model for …
2010 Nebraska Water Monitoring Programs Report, Marty Link
2010 Nebraska Water Monitoring Programs Report, Marty Link
Nebraska Department of Environmental Quality: Reports
The Nebraska Department of Environmental Quality (NDEQ) is charged with monitoring, assessing, and to the extent possible, managing the state’s water resources. The purpose of this work is to protect and maintain good quality water and encourage or execute activities to improve poor water quality. Monitoring is done on the over 18,000 miles of flowing rivers and streams, our greater than 280,000 acres of surface water in lakes and reservoirs, and the vast storage of groundwater in Nebraska’s aquifers.
Nisc Newsletter- Special Issue: September 2010
Nisc Newsletter- Special Issue: September 2010
National Invasive Species Council
Invasive Species Employment Opportunity
Below is summary information supporting two vacancy announcements and e-mail links for a full-time Biologist (Invasive Species, GS -401-11) working for the USFWS - Pacific Islands Fish and Wildlife Office in Honolulu, Hawaii. The vacancy announcements (one for merit promotion and a second for open competition) will close on 15 September. This position will specialize on aquatic invasive species (30% time) issues in addition to broader, regional invasive species and disease issues (70% time).
Droughtscape- Winter 2010, Kelly Smith
Droughtscape- Winter 2010, Kelly Smith
Droughtscape, Quarterly Newsletter of NDMC, 2007-
USDM Forum Highlights
Drought Likely to Ease
Research Shows Birds Vulnerable to Drought
Drought Recedes in 2009
CA, TX Suffer Impacts from Ongoing Drought
NDMC Wishes Ryu Well
Conferees Pick SPI for Global Drought Index
Heat Flow And Hydrologic Characteristics At The And-1b Borehole, Andrill Mcmurdo Ice Shelf Project, Antarctica, Roger H. Morin, Trevor Williams, Stuart A. Henrys, Diana Magens, Frank Niessen, Dhiresh Hansaraj
Heat Flow And Hydrologic Characteristics At The And-1b Borehole, Andrill Mcmurdo Ice Shelf Project, Antarctica, Roger H. Morin, Trevor Williams, Stuart A. Henrys, Diana Magens, Frank Niessen, Dhiresh Hansaraj
ANDRILL Research and Publications
The Antarctic Drilling Program (ANDRILL) successfully drilled and cored
a borehole, AND-1B, beneath the McMurdo Ice Shelf and into a flexural moat basin that surrounds Ross Island. Total drilling depth reached 1285 m below seafloor (mbsf) with 98 percent core recovery for the detailed study of glacier dynamics. With the goal of obtaining complementary information regarding heat flow and permeability, which is vital to understanding the nature of marine hydrogeologic systems, a succession of three temperature logs was recorded over a five-day span to monitor the gradual thermal recovery toward equilibrium conditions. These data were extrapolated to true, undisturbed temperatures, …
40Ar–39Ar Dating Of Volcanogenic Products From The And-2a Core (Andrill Southern Mcmurdo Sound Project, Antarctica): Correlations With The Erebus Volcanic Province And Implications For The Age Model Of The Core, Gianfranco Di Vincenzo, Laura Bracciali, Paola Del Carlo, Kurt Panter, Sergio Rocchi
40Ar–39Ar Dating Of Volcanogenic Products From The And-2a Core (Andrill Southern Mcmurdo Sound Project, Antarctica): Correlations With The Erebus Volcanic Province And Implications For The Age Model Of The Core, Gianfranco Di Vincenzo, Laura Bracciali, Paola Del Carlo, Kurt Panter, Sergio Rocchi
ANDRILL Research and Publications
The AND-2A drillcore (Antarctic Drilling Program—ANDRILL) was successfully completed in late 2007 on the Antarctic continental margin (Southern McMurdo Sound, Ross Sea) with the aim of tracking ice proximal to shallow marine environmental fluctuations and to document the 20-Ma evolution of the Erebus Volcanic Province. Lava clasts and tephra layers from the AND-2A drillcore were investigated from a petrographic and stratigraphic point of view and analyzed by the 40Ar–39Ar laser technique in order to constrain the age model of the core and to gain information on the style and nature of sediment deposition in the Victoria Land …
Nisc Newsletter: October 2010
National Invasive Species Council
International News
Conference in Copenhagen demands EU legislation on invasive species
Report Concludes Invasive Species, Climate Change, Form 'Deadly Duo'
State News
MSU, partners in six states consider converting invasive plants to fuel
Maryland Sea Grant and the Mid-Atlantic Panel on Aquatic Invasive Species
In the News
Out, Invasive Species!
Invasive Tallowtree Spreading Rapidly Across Gulf Coast
Hunting Asian Carp
New Website
Landscape for Life Helps Homeowners Create Sustainable, Beautiful Gardens!
NISC Staff Updates
Highlights of Recent Aquatic Nuisance Species Task Force (ANSTF) Meeting from NISC DOC Policy Liaison
Conferences