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Articles 6661 - 6690 of 9838

Full-Text Articles in Natural Resources and Conservation

Expansion Of The Southern Variant Of The Fire And Fuels Extension For The Forest Vegetation Simulator, S. M. Zedaker, S. A. Rebain, P. J. Radtke Jan 2008

Expansion Of The Southern Variant Of The Fire And Fuels Extension For The Forest Vegetation Simulator, S. M. Zedaker, S. A. Rebain, P. J. Radtke

Joint Fire Science Program Research Project Reports

This project specifically addressed AFP 2006-3, Task 3, by providing guidance for maintaining effective fire and non-fire fuels treatments, with the aim of supporting long-term fuels management. The overall goals of the project were to parameterize, expand, and improve the Southern Variant of the Fire and Fuels Extension (FFE) to the Forest Vegetation Simulator (FVS) with the best data currently available, to identify data weaknesses and gaps that may require additional research to reduce the uncertainty of Southern FFE model predictions, and to determine a validation framework for the Southern FFE. A wide variety of fire and fuels data and …


Evaluating The Efficacy And Ecological Impacts Of Baer Slope Stabilization Treatments On The Pot Peak/Deep Harbor Wildfire Complex, David W. Peterson, Richy J. Harrod, Terry Lillybridge, Mel Bennett Jan 2008

Evaluating The Efficacy And Ecological Impacts Of Baer Slope Stabilization Treatments On The Pot Peak/Deep Harbor Wildfire Complex, David W. Peterson, Richy J. Harrod, Terry Lillybridge, Mel Bennett

Joint Fire Science Program Research Project Reports

Post-fire slope stabilization treatments are often prescribed for severely burned areas of a wildfire, through burned area emergency response (BAER), to reduce erosion, maintain soil productivity, protect water quality, and reduce risks to human life and property. Prescribed slope stabilization treatments can include seeding of cereal grains or grasses, fertilization, mulching, and installation of physical barriers across slope contours (e.g., contour-felled logs and straw wattles). Seeding and fertilization treatments have been proposed following several high severity wildfires in the Pacific Northwest. These treatments are designed to reduce erosion by supplementing native vegetation recovery with additional populations of fast-growing species (seeding) …


Evaluation Of Science Delivery Of Joint Fire Science Program Research, David Seesholtz Jan 2008

Evaluation Of Science Delivery Of Joint Fire Science Program Research, David Seesholtz

Joint Fire Science Program Research Project Reports

Since its inception in 1998, the Joint Fire Science Program (JFSP) has funded over 400 projects. The Joint Fire Science Program has long recognized that the investments made in wildland fire science need to be accompanied by an emphasis on science interpretation and delivery. Program success is ultimately measured by how well information from research efforts is being conveyed to resource managers and end users, and whether this information is improving management decisions. This study reviewed a sample of environmental documents from three JFSP sponsoring agencies to determine to what extent JFSP research is being incorporated into local planning efforts …


Rationale For A Permanent Seismic Network In The U.S. Central Plains Utilizing U.S. Array, Stephen S. Gao, Tina M. Niemi, Ross A. Black, Kelly H. Liu, Raymond R. Anderson, Robert M. Joeckel, Robert W. Busby, John Taber Jan 2008

Rationale For A Permanent Seismic Network In The U.S. Central Plains Utilizing U.S. Array, Stephen S. Gao, Tina M. Niemi, Ross A. Black, Kelly H. Liu, Raymond R. Anderson, Robert M. Joeckel, Robert W. Busby, John Taber

School of Natural Resources: Faculty Publications

No abstract provided.


Droughtscape, Winter 2008, Kelly Smith Jan 2008

Droughtscape, Winter 2008, Kelly Smith

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

Now Up & On-Line:

Winter 2008 Outlook and Oct.-Dec. ’07 Summary

NDMC Experts Serve as Resource for Media

Drought Hits Ag and Urban Interests in 2007

Climatological Summary of Drought in 2007

NDMC Welcomes Data Miner Bo Zhang

New Grant Awards


Use Of Passive Integrated Transponders In Hatchling Texas Horned Lizards, Scott E. Henke Jan 2008

Use Of Passive Integrated Transponders In Hatchling Texas Horned Lizards, Scott E. Henke

The Prairie Naturalist

The Texas horned lizard (Phrynosoma cornutum) is a Texas state-threatened species and acquisition of data related to the species' ecology is essential. To accomplish this task individual animals need to be marked. Many marking techniques are available for lizards, however the majority of techniques have been tested on adults only. Studies involving hatchling and juvenile horned lizards are scarce due to problems associated with marking and relocating individuals in these age classes. I demonstrated that injection of passive integrated transponders (PIT's) can safely be used as a marking method in young Texas horned lizards. Thirty-two captive bred hatchling lizards were …


Mortality Of An American Marten From An Off-Highway Vehicle, Joshua B. Smith, Jonathan A. Jenks Jan 2008

Mortality Of An American Marten From An Off-Highway Vehicle, Joshua B. Smith, Jonathan A. Jenks

The Prairie Naturalist

While there are several reviews of the effects of OHVs and recreational activity on wildlife populations (Knight and Gutzwiller 1995, Joslin and Youmans 1999), most studies have focused on physiological (Creel et al. 2002) or behavioral (Van Dyke et al. 1986, Riley et al. 2003) responses to disturbance; none have addressed the potential for direct mortality. In 2005, we documented the death from an OHV of a juvenile, female American marten (F299) that had been radiocollared during a study documenting the distribution and abundance of American marten in the Black Hills, South Dakota (Smith 2007); the Institutional Animal Care and …


An Analysis Of The Feasibility Of A Joint Economic Development District Between The City Of Brunswick And Hinckley Township, Kevin O'Brien, Claudette Robey, Daila Shimek, Michael Mcgoun, Ryan Foster Jan 2008

An Analysis Of The Feasibility Of A Joint Economic Development District Between The City Of Brunswick And Hinckley Township, Kevin O'Brien, Claudette Robey, Daila Shimek, Michael Mcgoun, Ryan Foster

All Maxine Goodman Levin School of Urban Affairs Publications

No abstract provided.


Comprehensive Study Of Regionalism: Tools For Comparison And Evaluation, George A. Erickcek, Jason M. Preuss, Brad Watts, Claudette Robey, Kevin E. O'Brien Jan 2008

Comprehensive Study Of Regionalism: Tools For Comparison And Evaluation, George A. Erickcek, Jason M. Preuss, Brad Watts, Claudette Robey, Kevin E. O'Brien

All Maxine Goodman Levin School of Urban Affairs Publications

No abstract provided.


Interannual Variation In Larval Yellow Perch Abundance In Eastern South Dakota Glacial Lakes And Relation To Sympatric Walleye Populations, Andrew C. Jansen Jan 2008

Interannual Variation In Larval Yellow Perch Abundance In Eastern South Dakota Glacial Lakes And Relation To Sympatric Walleye Populations, Andrew C. Jansen

Electronic Theses and Dissertations

Yellow perch Perca flavescens are a popular sportfish in eastern South Dakota glacial lakes. In addition to their recreational importance, yellow perch serve as a prey species for predators. Thus, understanding the factors that affect yellow perch population dynamics is a top priority among fishery managers in South Dakota. The objectives of this study were to 1) estimate the magnitude and duration for a decrease in water temperature that would induce mortality of yellow perch eggs, 2) investigate the relation between climatological variables and larval perch abundance in six eastern South Dakota glacial lakes, and 3) relate long-term larval perch …


Evaluation Of An Augmentation Of Rocky Mountain Bighorn Sheep At Badlands National Park, South Dakota, Teresa J. Zimmerman Jan 2008

Evaluation Of An Augmentation Of Rocky Mountain Bighorn Sheep At Badlands National Park, South Dakota, Teresa J. Zimmerman

Electronic Theses and Dissertations

Audubon’s (a.k.a. Badlands) bighorn (Ovis canadensis auduboni [Merriam 1901] now O. c. Canadensis [Shaw 1804]), described as a subspecies of bighorn sheep, was extirpated from its range by 1924. In 1964, 22 Rocky Mountain bighorn sheep were translocated from Pikes Peak, Colorado, to Badlands National Park (BNP) in southwestern South Dakota. Based on the estimated effective population size and analysis of molecular data, the bighorn sheep population at BNP underwent a population bottleneck at founding. Recommendations to restore genetic diversity in the BNP population included a mixed-sex augmentation (n > 30) from an outbred, native population of Rocky Mountain bighorn sheep. …


Finicky Fish Finish... Last! On-Site Programming -- Support Materials (Grade 5), Discover Mojave: Forever Earth Jan 2008

Finicky Fish Finish... Last! On-Site Programming -- Support Materials (Grade 5), Discover Mojave: Forever Earth

Curriculum materials (FE)

In “Finicky Fish Finish…Last!” students explore what has happened to the Colorado River and the reasons why it is so difficult for the razorback sucker to thrive in a changed environment. Working as ichthyologists (fish biologists) at Lake Mead, students collect water quality data such as temperature, pH, and clarity to determine whether current habitat conditions are sufficient for survival of young razorback suckers. Students observe and identify non-native fish in Lake Mead as they learn how the razorback sucker interacts with these neighbors. Students assess whether Lake Mead is still a good habitat for razorback suckers. Using the knowledge …


Finicky Fish Finish... Last! On-Site Programming -- Post-Visit Lessons -- Support Materials (Grade 5), Forever Earth Jan 2008

Finicky Fish Finish... Last! On-Site Programming -- Post-Visit Lessons -- Support Materials (Grade 5), Forever Earth

Curriculum materials (FE)

In “Finicky Fish Finish…Last!” students explore what has happened to the Colorado River and the reasons why it is so difficult for the razorback sucker to thrive in a changed environment. Working as ichthyologists (fish biologists) at Lake Mead, students collect water quality data such as temperature, pH, and clarity -- to determine whether current habitat conditions are sufficient for survival of young razorback suckers. Students observe and identify non-native fish in Lake Mead as they learn how the razorback sucker interacts with these neighbors. Students assess whether Lake Mead is still a good habitat for razorback suckers. Using the …


Finicky Fish Finish... Last! Post-Visit -- Getting The Word Out: Visually Getting The Word Out: Interviews And Podcasts Lessons (Grade 5), Discover Mojave: Forever Earth Jan 2008

Finicky Fish Finish... Last! Post-Visit -- Getting The Word Out: Visually Getting The Word Out: Interviews And Podcasts Lessons (Grade 5), Discover Mojave: Forever Earth

Curriculum materials (FE)

In “Finicky Fish Finish…Last!” students use the Forever Earth vessel to explore what has happened to the Colorado River and the reasons why it is so difficult for the razorback sucker to thrive in a changed environment. Working as ichthyologists (fish biologists) at Lake Mead, students collect water quality data such as temperature, pH, and clarity -- to determine whether current habitat conditions are sufficient for survival of young razorback suckers. Students observe and identify non-native fish in Lake Mead as they learn how the razorback sucker interacts with these neighbors. Students assess whether Lake Mead is still a good …


Alien Invaders! On-Site Programming -- Support Materials (Grade 6), Discover Mojave: Forever Earth Jan 2008

Alien Invaders! On-Site Programming -- Support Materials (Grade 6), Discover Mojave: Forever Earth

Curriculum materials (FE)

In the “Alien Invaders!” program, students investigate how quagga mussels might affect Lake Mead. Students collect water quality data such as clarity, pH, and temperature to determine current habitat conditions that have allowed quagga mussels to thrive in Lake Mead. Students learn about the consequences that quagga mussels could have on the lake and its living and non-living resources. Using the knowledge they’ve gained, students create their own management plans to prevent the spread of quagga mussels to other waterways.


Interagency Science And Research Strategy, Limnological Assistance For Lake Mead National Recreation Area Jan 2008

Interagency Science And Research Strategy, Limnological Assistance For Lake Mead National Recreation Area

Limnological Studies

Helping improve operational efficiency, enhance land stewardship, resource protection, and conservation on the shared public land.


Ecological Consequences Of Invasion Of The Quagga Mussel (Dreissena Bugensis Andrusov 1897) Into Lake Mead, David Wong, Shawn Gerstenberger, Todd Tietjen, Sara Ann Mueting, Eric Michael Loomis Jan 2008

Ecological Consequences Of Invasion Of The Quagga Mussel (Dreissena Bugensis Andrusov 1897) Into Lake Mead, David Wong, Shawn Gerstenberger, Todd Tietjen, Sara Ann Mueting, Eric Michael Loomis

Limnological Studies

Consequences of Invasion of the Quagga Mussel into Lake Mead


Tips For Going Green, City Of Las Vegas, Nevada Jan 2008

Tips For Going Green, City Of Las Vegas, Nevada

Publications (SD)

No abstract provided.


Urban Drought Guidebook 2008 Updated Edition, State Of California Jan 2008

Urban Drought Guidebook 2008 Updated Edition, State Of California

Publications (WR)

This guide will help water managers facing water shortages by showing them how to use tried and true methods of the past as well as making use of new tools and methods. Managing water shortages involves using programs to temporarily reduce demand and find alternate water to temporarily increase supply. The guidebook discusses water shortage management programs that belong in water shortage contingency plans. It was first written in 1988, and then updated in 1991 and 2008 to help water suppliers cope with potentially severe drought and other water shortages. The focus of the guide is to provide a step-by-step …


Nesting And Brood-Rearing Success And Resource Selection Of Greater Sage-Grouse In Northwestern South Dakota, Nicholas W. Kaczor Jan 2008

Nesting And Brood-Rearing Success And Resource Selection Of Greater Sage-Grouse In Northwestern South Dakota, Nicholas W. Kaczor

Electronic Theses and Dissertations

Understanding population dynamics and resource selection is crucial in developing wildlife resource management plans, particularly for sensitive species. Greater sage-grouse (Centrocercus urophasianus) populations have declined range-wide at a rate of 2% per year from 1965 to 2003. In South Dakota, populations have generally declined. Reasons for the decline are mostly attributed to human-induced factors such as sagebrush degradation and removal, improper range management practices, oil and gas exploration, and West Nile virus infection. Sage-grouse occupy habitats at the eastern edge of their range in western South Dakota. We conducted a 2-year study to investigate the nesting and brood-rearing ecology of …


Alien Invaders! On-Site Programming (Grade 6), Discover Mojave: Forever Earth Jan 2008

Alien Invaders! On-Site Programming (Grade 6), Discover Mojave: Forever Earth

Curriculum materials (FE)

In the “Alien Invaders!” program, students investigate how quagga mussels might affect Lake Mead. Students collect water quality data such as clarity, pH, and temperature to determine current habitat conditions that have allowed quagga mussels to thrive in Lake Mead. Students learn about the consequences that quagga mussels could have on the lake and its living and non-living resources. Using the knowledge they’ve gained, students create their own management plans to prevent the spread of quagga mussels to other waterways.


Treatment Of Industrial Wastewater Containing Active Pharmaceutical Ingredients With A Membrane Bioreactor, With The Aim Of Reducing Resource Consumption, Pádraig Colm Ó'Maolcatha Jan 2008

Treatment Of Industrial Wastewater Containing Active Pharmaceutical Ingredients With A Membrane Bioreactor, With The Aim Of Reducing Resource Consumption, Pádraig Colm Ó'Maolcatha

Theses

The biodegradation of a selected active pharmaceutical ingredient (API) during wastewater treatment in a membrane bioreactor (MBR) was examined experimentally. A comparison study was conducted by operating a conventional activated sludge (CAS) pilot plant in parallel to the MBR. The MBR was operated under varying conditions of pH (pH6 and pH8), MLSS (6g/L and l0g/L) and SRT (20 days and 30 days) according to a full factorial design of experiments. In the CAS, pH and SRT were altered as above but MLSS was maintained at 3-4g/L. Comparable average API removal results of 95.5% and 95.7% were obtained for the MBR …


Toward A New Consciousness: Values To Sustain Human And Natural Communities, Anthony A. Leiserowitz, Lisa O. Fernandez Jan 2008

Toward A New Consciousness: Values To Sustain Human And Natural Communities, Anthony A. Leiserowitz, Lisa O. Fernandez

Yale School of the Environment Publications Series

A Synthesis of Insights and Recommendations from the 2007 Yale F&ES Conference


Best Practices: Innovative Funding Mechanisms For Financing A Lead Remediation Program, Claudette Robey, Daila Shimek, Michael Mcgoun, Kara Chernet, Christopher Gollan Jan 2008

Best Practices: Innovative Funding Mechanisms For Financing A Lead Remediation Program, Claudette Robey, Daila Shimek, Michael Mcgoun, Kara Chernet, Christopher Gollan

All Maxine Goodman Levin School of Urban Affairs Publications

The elimination of childhood lead poisoning is a national health policy objective to be attained by the year 2010. A full understanding of the poisoning risks that lead poses for young children and infants evolved as more research focused upon its effects. Some of the first warnings of the potential dangers associated with lead began with studies conducted as early as the 1940s and 1950s. Over time, the link between exposure to lead and reduced cognitive function and impulse control in young children was firmly established. Numerous studies since have linked high blood lead levels to serious learning disabilities, lower …


A Scan Of Attributes In County Government Structure, Kevin O'Brien, Holly Cooper Whisman, Ryan Foster, Melissa Rowe Jan 2008

A Scan Of Attributes In County Government Structure, Kevin O'Brien, Holly Cooper Whisman, Ryan Foster, Melissa Rowe

All Maxine Goodman Levin School of Urban Affairs Publications

This report discusses the outcome of a national scan of models of effective county leadership and operations that might translate into alternative structures for consideration by the Commission on Cuyahoga County Government Reform. The scan produced a number of alternate county organizational structures that utilized several formats for executive, legislative, and administrative roles.


Understanding The Motivations Of Rock Climbers: A Social Worlds Study, Amy Miller Ansari Jan 2008

Understanding The Motivations Of Rock Climbers: A Social Worlds Study, Amy Miller Ansari

UNLV Theses, Dissertations, Professional Papers, and Capstones

Rock climbing affects public lands through erosion, destruction of vegetation, and disturbance to historical sites. Minimum impact messages can help reduce impacts but requires understanding characteristics of the message recipient. The purpose of this study was to understand the motivations of rock climbers to help land managers design more effective minimum impact messages. This study assesses the motivations of rock climbers using a social worlds approach, focusing on the sub-worlds of. traditional climbers, sport climbers, and boulderers. I found that traditional climbers are most motivated to pursue a wilderness experience, climb in a natural wilderness setting, and climb in quiet …


Dual Regulation, Collaborative Management, Or Layered Federalism: Can Cooperative Federalism Models From Other Laws Save Our Public Lands?, Hope M. Babcock Jan 2008

Dual Regulation, Collaborative Management, Or Layered Federalism: Can Cooperative Federalism Models From Other Laws Save Our Public Lands?, Hope M. Babcock

Georgetown Law Faculty Publications and Other Works

To realize the goals of conservation biology and ecosystem management, the institutions that govern these systems must be able to work together harmoniously, across political boundary lines and into a biologically uncertain future. The rigidity of the current public lands model creates substantial barriers to the achievement of these goals.

This article's working premise is that unless the current governance structure for the management of public lands changes, the political conflicts over their use and management will continue to blight their future, just as it has marred their past. Further, failing to adapt the management of public lands to our …


The National Environmental Policy Act In The Urban Environment: Oxymoron Or A Useful Tool To Combat The Destruction Of Neighborhoods And Urban Sprawl?, Hope M. Babcock Jan 2008

The National Environmental Policy Act In The Urban Environment: Oxymoron Or A Useful Tool To Combat The Destruction Of Neighborhoods And Urban Sprawl?, Hope M. Babcock

Georgetown Law Faculty Publications and Other Works

To some, applying the National Environmental Policy Act (NEPA) to decisions affecting land use in an urban or built environment is an oxymoron. Cities have historically not been seen “as natural entities but as foreign impositions upon the native landscape,” places where the physical environment is already largely destroyed or reduced to insignificant remnants. Moreover, detecting the required federal presence to trigger NEPA may initially seem difficult when decisions affecting urban resources appear to be principally made by local or state agencies.

At the Institute for Public Representation (IPR) at the Georgetown University Law Center, the author has learned that …


From Shrub Steppe To Fruit For The Nation: Historic Preservation Of Washington's Early Fruit Industry At Johnson Orchards In Yakima, Washington, Kelsey James Doncaster Jan 2008

From Shrub Steppe To Fruit For The Nation: Historic Preservation Of Washington's Early Fruit Industry At Johnson Orchards In Yakima, Washington, Kelsey James Doncaster

All Master's Theses

Johnson Orchards in Yakima, Washington is an example of the fruit boom of the early 1900s in the irrigated Pacific Northwest. Its history is a part of the formative years of the apple industry in Washington State. Archival research of period documents, oral history interviews, historical photographs, and current on-site evaluations were viewed through a historic context statement were used to identify and assess properties at Johnson Orchards that would be eligible for listing on the National Register of Historic Places. The historic context statement for the Johnson Orchards property can be used for other historic buildings, landscapes or structures …


State Of The River Report For The Lower St. Johns River Basin, Florida: Water Quality, Fisheries, Aquatic Life, And Contaminants 2008, Environmental Protection Board, City Of Jacksonville, University Of North Florida, Jacksonville University Jan 2008

State Of The River Report For The Lower St. Johns River Basin, Florida: Water Quality, Fisheries, Aquatic Life, And Contaminants 2008, Environmental Protection Board, City Of Jacksonville, University Of North Florida, Jacksonville University

State of the River Report

No abstract provided.