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2006

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Articles 61 - 90 of 143

Full-Text Articles in Natural Resources and Conservation

Effect Of Bio-Optical Parameter Variability And Uncertainties In Reflectance Measurements On The Remote Estimation Of Chlorophyll-A Concentration In Turbid Productive Waters: Modeling Results, Giorgio Dall'olmo, Anatoly A. Gitelson May 2006

Effect Of Bio-Optical Parameter Variability And Uncertainties In Reflectance Measurements On The Remote Estimation Of Chlorophyll-A Concentration In Turbid Productive Waters: Modeling Results, Giorgio Dall'olmo, Anatoly A. Gitelson

School of Natural Resources: Faculty Publications

Most algorithms for retrieving chlorophyll-a concentration (Chla) from reflectance spectra assume that bio-optical parameters such as the phytoplankton specific absorption coefficient (aφ*) or the chlorophyll-a fluorescence quantum yield (η) are constant. Yet there exist experimental data showing large ranges of variability for these quantities. The main objective of this study was to analyze the sensitivity of two Chla algorithms to variations in bio-optical parameters and to uncertainties in reflectance measurements. These algorithms are specifically designed for turbid productive waters and are based on red and near-infrared reflectances. By means of simulated data, it is shown …


Who Participates In Today's Environmental Movement? Not The Rich Or The Educated, Jessica Schaum May 2006

Who Participates In Today's Environmental Movement? Not The Rich Or The Educated, Jessica Schaum

Honors Capstones

Capstone submitted as a graduation requirement for the BSU Honors Program.


The Comparison Of Leonard Washburn Brook And Poquoy Brook May 2006

The Comparison Of Leonard Washburn Brook And Poquoy Brook

Watershed Access Lab Projects

Students compared the water quality of two brooks in Lakeville, MA. Leonard-Washburn is located west of Cross Street and was accessed through private property. The brook is spring fed and drains a woodland and a forested wetland. There are few land uses that impact this brook. Land surrounding the brook has been donated to the Wetlands Trust to prevent future development. The Poquoy Brook site is located on the upstream side of the Taunton Street culvert. Land uses include cranberry farming,low density residential, an active railroad track (ConRail) and Poquoy Brook Golf Course.

Dissolved Oxygen concentrations followed a diurnal pattern …


Characterization Survey Of Rattlesnake Brook May 2006

Characterization Survey Of Rattlesnake Brook

Watershed Access Lab Projects

Students investigated whether the construction of the Stop and Shop DePot in Assonet, MA had any adverse influence on the water quality of Rattlesnake Brook. The brook drains a wetlands east of the Assonet River, passes beneath South Main Street in Assonet then passes to the west of the S & S Depot. It then enters a marsh along with Terrry Brook before reaching its confluence with the Assonet River. Water quality was found to be within normal ranges at all three sites. Nutrients were often below detection limit. Calculation for load indicated a sudden drop in nitrates between the …


Abbott Run River Study May 2006

Abbott Run River Study

Watershed Access Lab Projects

During the past year, we have studied, in detail, Abbot Run. The purpose of our study was to ensure that the river met the Massachusetts water quality standards of a Class A river. The Abbott Run is a Class A river because it is the source of the drinking water for Pawtucket, Rhode Island.

Abbott Run is a part of the Blackstone River Watershed, which is located in Massachusetts and continues into parts of Rhode Island. The river runs through North Attleboro and passes through Chemawa Golf Course, an 18-hole course.

The river was studied at two different sites about …


Survey Of Area Streams Near Hanover High School May 2006

Survey Of Area Streams Near Hanover High School

Watershed Access Lab Projects

No abstract provided.


Agawam River Study: Year 5 May 2006

Agawam River Study: Year 5

Watershed Access Lab Projects

No abstract provided.


Fisheries Research Report No. 155 - Identification Of Western Australian Grey Nurse Shark Aggregation Sites., J. Chidlow, Daniel J. Gaughan, Rory Mcauley May 2006

Fisheries Research Report No. 155 - Identification Of Western Australian Grey Nurse Shark Aggregation Sites., J. Chidlow, Daniel J. Gaughan, Rory Mcauley

Fisheries Research Reports

Final report to the Australian Government, Department of the Environment and Heritage

The first phase of this project involved a desktop study to broadly identify areas where Western Australian Grey Nurse Sharks potentially aggregate for further investigation with field surveys. These areas were identified from information obtained from commercial shark fishers, previously unpublished research data, as well as anecdotal reports of sightings or captures from recreational divers and fishers, professional dive stores, dive clubs and charter boat operators. A total of 25 survey areas were identified during the desktop study, 16 of which were in depths less than 30m and …


Identifying Superior Hybrid Hazelnut Plants In Southeast Nebraska, Elizabeth A. Hammond May 2006

Identifying Superior Hybrid Hazelnut Plants In Southeast Nebraska, Elizabeth A. Hammond

School of Natural Resources: Dissertations, Theses, and Student Research

The goal of this observational study is to identify productive hybrid hazelnut plants suitable for commercial production. The objectives of this studywere to 1) examine a plantation of hybrid hazelnut plants grown in Southeast Nebraska for the presence of eastern filbert blight (EFB); 2) identify high yielding hybrid hazelnut plants; and 3) characterize plant and nut features of selected high yielding plants.

Data were collected from a 3.64 hectare (9 acre) planting of 5,200 hybrid hazelnut plant located at Arbor Day Farm in Nebraska City, Otoe County, Nebraska. Plants were grown on 1.5 m x 4.6 m (5 foot x …


Adaptive Management Report For The Clark County, Nevada Multiple Species Habitat Conservation Plan, Desert Conservation Program May 2006

Adaptive Management Report For The Clark County, Nevada Multiple Species Habitat Conservation Plan, Desert Conservation Program

Publications (C)

This is a status report on the effectiveness of conservation actions implemented by the Desert Conservation Program, land use trends, habitat loss, species population trends, and ecosystem health. Four Adaptive Management Program (AMP) tasks are defined in the Multiple Species Habitat Conservation Plan (MSHCP: section 2) and the Biological Opinion for the section 10 take permit (p 2.11). The tasks are: a) provide an analysis of all land-use trends in Clark County to ensure that take and habitat disturbance is balanced with solid conservation, b) monitor population trends and ecosystem health, c) evaluate effectiveness of management actions at meeting MSHCP …


The Contribution Of Environmental Variables On Small Mammal Species Richness And Relative Abundance In Eastern Nevada, Stephanie Harris May 2006

The Contribution Of Environmental Variables On Small Mammal Species Richness And Relative Abundance In Eastern Nevada, Stephanie Harris

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study is to determine how four environmental variables: elevation, latitude, soil type, and vegetation impact the relative abundance of Peromyscus maniculatus and the species richness of small mammal populations in Eastern Nevada. In order to complete this study, a survey of small mammals was completed in the following 8 Eastern Nevada valleys: Delamar, Dry Lake, Dry Lake- Muleshoe,Cave, Lake, Snake, Spring, White River. In each valley, transects of Sherman live traps will be set up for 3 consecutive nights (O'Farrell et al 1977). Data on elevation, latitude, soil type, and vegetation were taken at each trap …


The Fate And Transport Of Nitrogen (N) And The Effect Of Emergent Plants On Natural Treatment Of N-Species At Las Vegas Wash, Nevada, Tanju Kiriscioglu May 2006

The Fate And Transport Of Nitrogen (N) And The Effect Of Emergent Plants On Natural Treatment Of N-Species At Las Vegas Wash, Nevada, Tanju Kiriscioglu

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study is to analyze the effect of emergent plant communities at Las Vegas Wash (the System) using a system dynamics modeling approach. Understanding the dynamics of nitrogen (N —major polluting nutrient in the Wash) that enters the System is important because it occasionally causes algal blooms, choking Lake Mead through excessive eutrophication. Emergent plant communities are an integral part of wetland ecosystems and they play a crucial role in natural treatment of nutrients. This study is intended to test this hypothesis.

The study makes use of Wash data from reliable sources (Las Vegas Valley Water District, …


Anaerobic Digester Use In Dairy Farms In The United States, Shaun Elsasser May 2006

Anaerobic Digester Use In Dairy Farms In The United States, Shaun Elsasser

UNLV Theses, Dissertations, Professional Papers, and Capstones

Anaerobic digestion is a highly efficient process, trapping the methane gas from cow manure and processing it into energy. The steep initial capital costs make anaerobic digesters short-term liabilities, but the long-term benefits far outweigh the long-term costs. An anaerobic digester unit will begin to show a profit after approximately five years of operation. During the lifetime of the unit, estimated at 15 years, the digester will have produced about $ 1,000,000 in profits for the dairy farm, while also providing invaluable benefits to society as a whole.


Mammal Diversity In The North Chickamauga Creek Gorge State Natural Area And The Effects Of Internal Fragmentation On The Relative Distributions Of Mammalian Carnivores, Matthew Blaine Smith May 2006

Mammal Diversity In The North Chickamauga Creek Gorge State Natural Area And The Effects Of Internal Fragmentation On The Relative Distributions Of Mammalian Carnivores, Matthew Blaine Smith

Masters Theses and Doctoral Dissertations

Mammal Diversity Mammal species were surveyed in the North Chickamauga Creek Gorge State Natural Area using various methods of observation. Sixteen mammal species were detected in the natural area, 14 of which were previously undocumented. The whitefooted mouse and the raccoon were the most abundant species. There are additional mammal species that may occur in the natural area but were not documented during this survey. Future surveys should place an emphasis on locating these species. The natural area will become more important for maintaining biodiversity as development proceeds in the surrounding area. However, the success of the natural area can …


Invasive Species Definition Clarification And Guidance, Invasive Species Advisory Committee Apr 2006

Invasive Species Definition Clarification And Guidance, Invasive Species Advisory Committee

National Invasive Species Council

Summary

Invasive species are those that are not native to the ecosystem under consideration and that cause or are likely to cause economic or environmental harm or harm to human, animal, or plant health. Plant and animal species under domestication or cultivation and under human control are not invasive species. Furthermore for policy purposes, to be considered invasive, the negative impacts caused by a non-native species will be deemed to outweigh the beneficial effects it provides. Finally, a non-native species might be considered invasive in one region but not in another. Whether or not a species is considered an invasive …


Presentation To National Park Service – Pacific West Region April 25, 2006, Public Lands Institute Apr 2006

Presentation To National Park Service – Pacific West Region April 25, 2006, Public Lands Institute

Presentations (PLI)

The Public Lands Institute is dedicated to strengthening the national fabric that is essential for the protection, conservation, and management of public lands.

In collaboration with federal, state, and non-profit partners, we are:

  • creating new knowledge
  • advancing technology
  • improving education
  • engaging the public to become involved in conservation and stewardship.


Presentation To National Park Service – Pacific West Region April 25, 2006, Public Lands Institute Apr 2006

Presentation To National Park Service – Pacific West Region April 25, 2006, Public Lands Institute

Presentations (PLI)

The Public Lands Institute is dedicated to strengthening the national fabric that is essential for the protection, conservation, and management of public lands.

In collaboration with federal, state, and non-profit partners, we are:

  • creating new knowledge
  • advancing technology
  • improving education
  • engaging the public to become involved in conservation and stewardship.


Earth Science & Public Policy: Increasing Our Spheres Of Influence, Margaret N. Rees Apr 2006

Earth Science & Public Policy: Increasing Our Spheres Of Influence, Margaret N. Rees

Presentations (PLI)

The UNLV Public Lands Institute is dedicated to strengthening the national fabric that is essential for the protection, conservation, and management of public lands.


Patterns In Body Mass Distributions: Sifting Among Alternative Hypotheses, Craig R. Allen, A. S. Garmestani, T. D. Havlicek, P. A. Marquet, G. D. Peterson, C. Restrepo, C. A. Stow, B. E. Weeks Apr 2006

Patterns In Body Mass Distributions: Sifting Among Alternative Hypotheses, Craig R. Allen, A. S. Garmestani, T. D. Havlicek, P. A. Marquet, G. D. Peterson, C. Restrepo, C. A. Stow, B. E. Weeks

School of Natural Resources: Faculty Publications

Understanding how animals interact with their environment is critical for evaluating, mitigating and coping with anthropogenic alteration of Earth’s biosphere. Researchers have attempted to understand some aspects of these interactions by examining patterns in animal body mass distributions. Energetic, phylogenetic, biogeographical, textural discontinuity and community interaction hypotheses have been advanced to explain observed patterns. Energetic and textural discontinuity hypotheses focus upon the allometry of resource use. The community interaction hypothesis contends that biotic interactions within assemblages of species are of primary importance. Biogeographical and phylogenetic hypotheses focus on the role of constraints on the organization of communities. This paper examines …


The John Muir Newsletter, Spring/Summer 2006, The John Muir Center For Environmental Studies Apr 2006

The John Muir Newsletter, Spring/Summer 2006, The John Muir Center For Environmental Studies

Muir Center Newsletters (1981-2015)

John Muir's World Tour (part III) Introduction by W. R. Swagerty Director, John Muir Center In this issue, we resume John Muir's unpublished notebooks from his World Tour, 1903-1904. This double issue covers the dates August 18 through November 2, 1903, all recorded in notebook number fifty of the John Muir Papers at University of the Pacific. The transcription by Pulizer-prize winner and Muir-biographer Linnie Marsh Wolfe (1881-1945) is part of her papers, also at Pacific in Holt-Atherton Special Collections, a subset of.. ' the Muir Papers. The Wolfe Papers are described thus in the on-line catalog to Holt-Atherton Department …


Sea Urchin Predation In Misali Island Marine Park, Nicole Esclamado Apr 2006

Sea Urchin Predation In Misali Island Marine Park, Nicole Esclamado

Independent Study Project (ISP) Collection

The populations of sea urchins and their main predators, triggerfish (Balistidae), wrasses (Labridae) and emperors (Lethrinidae), were studied in the extractive and non-extractive zones of the Misali Island Marine Conservation Area in order to (1) evaluate the applicability of a sea urchin-sea urchin predator model developed in Kenya’s fringing reefs, (2) gain baseline data on Misali’s coral reef, and (3) evaluate the recovery status of the protected zone. This study revealed the predictive power of the sea urchin-sea urchin predator model for the reef ecosystem of Misali Island. As expected, a decline in sea urchin predators as a gross trophic …


Interpreting Nature In Australia Through Poetry: A Personal Anthology Written Within The Erosion Caldera Of Northern New South, Kyla Allon Apr 2006

Interpreting Nature In Australia Through Poetry: A Personal Anthology Written Within The Erosion Caldera Of Northern New South, Kyla Allon

Independent Study Project (ISP) Collection

My Independent Study Project (ISP) involved traveling within the erosion caldera of northern New South Wales, mainly WWOOFing (Willing Workers on Organic Farms) and writing environmental poetry about the places where I lived and worked. I began by researching past Australian environmental poets so that I could have a strong basic understanding before commencing my own writing. I lived in four different locations within the erosion caldera and strove to form a strong sense of place that is reflected in my poetry. Ultimately, I produced an anthology of poems that capture my responses to the natural environments that I experienced. …


Colorado College State Of The Rockies Report Card, Walter E. Hecox, Bryan Hurlbutt, Caitlin O'Brady Apr 2006

Colorado College State Of The Rockies Report Card, Walter E. Hecox, Bryan Hurlbutt, Caitlin O'Brady

Publications (SD)

Welcome to Colorado College’s third State of the Rockies Report Card. Building upon a strong start in 2004 and continuing through 2005, the Rockies Project this year provides a fresh look at key challenges to this beautiful but fragile region. This Report Card and the companion April 2006 State of the Rockies Conference are significant outreach activities of Colorado College: Vision 2010, an agenda to strengthen our college and our engagement in the region.


Measuring Plant-Wide Energy Savings, J. Kelly Kissock, Carl Eger Apr 2006

Measuring Plant-Wide Energy Savings, J. Kelly Kissock, Carl Eger

Mechanical and Aerospace Engineering Faculty Publications

This paper presents a general method for measuring plant-wide industrial energy savings and demonstrates the method using a case study from an actual industrial energy assessment. The method uses regression models to characterize baseline energy use. It takes into account changes in weather and production, and can use sub-metered data or whole plant utility billing data. In addition to calculating overall savings, the method is also able to disaggregate savings into components, which provides additional insight into the effectiveness of the individual savings measures.

Although the method incorporates search techniques and multi-variable least-squares regression, it is easily implemented using data …


Un Estudio De La Palma De Ramos, Ceroxylum Alpinum, En La Zona Intag, Ecuador, Lupe Moscoe Apr 2006

Un Estudio De La Palma De Ramos, Ceroxylum Alpinum, En La Zona Intag, Ecuador, Lupe Moscoe

Independent Study Project (ISP) Collection

This study addresses the endangered wax palm species, Ceroxylum alpinum, in the Ecuadorian cloud forest zone of Intag. Attention has recently arisen regarding this plant because the yellow-eared parrot, Ognorhynchus icterotis, which depends on it for food and nesting, is in critical danger of extinction. Much of this attention has targeted the use of wax palm fronds on Palm Sunday, but this investigation shows that this is only one of the many threats to the palm. Environmentalists in Intag are currently undertaking reforestation projects in community reserves to save the palm, but little is known about its development. This study …


The Development Of Environmental Consciousness And Identity In Surfing Subculture, Alex Mass Apr 2006

The Development Of Environmental Consciousness And Identity In Surfing Subculture, Alex Mass

Independent Study Project (ISP) Collection

Since the 1960’s and 1970’s, surfing has exuded the stereotype of a laid-back, environmentally conscious and left-wing culture, a connotation often spread through media outlets such as movies, television, and music that encourage the idea. While the stereotype is often known and widely accepted, no studies could be found that actually tested this view. Using a series of interviews and surveys of the New Ecological Paradigm, this study investigated the formation of environmental consciousness and identity in surfing subculture in order to examine the accuracy of such stereotypes, and analyse the effect that such generalized views have on the formation …


Natural History Of The Quarry Trail, Genevive Espinoza, Megan Michael, Shayla Williamson Apr 2006

Natural History Of The Quarry Trail, Genevive Espinoza, Megan Michael, Shayla Williamson

Student Research

We tested the effectiveness of an interpretive trail guide in promoting environmental education at the nature park. Our sample consisted of 98 introductory biology students at DePauw University. Our study investigated the impact of environmental education with the interpretive trail guides as a tool for changing student attitudes toward nature. Conservation biology and human impacts were highlighted in the trail guides and selection of the points of interest along the quarry guide. We designated 11 points along the quarry trail. Our trail guide incorporated aspects of the quarry trail that were relevant to conservation biology and significant historically. Pre and …


Cooperative Conservation: Increasing Capacity Through Community Partnerships -- Interagency Volunteer Program & Cooperative Conservation Program: Quarterly Progress Report, Period Ending March 31, 2006, Margaret N. Rees Mar 2006

Cooperative Conservation: Increasing Capacity Through Community Partnerships -- Interagency Volunteer Program & Cooperative Conservation Program: Quarterly Progress Report, Period Ending March 31, 2006, Margaret N. Rees

Get Outdoors Nevada

  • Interagency volunteer database now contains 2,211 records, reflecting 404 new volunteer records this quarter, a 22% increase over last quarter.
  • Website activity decreased, recording an average of 35,798 hits per month, with an average of 3,337 pages viewed per month.
  • Volunteer events were successfully executed in Sloan Canyon NCA, Spring Mountains NRA, and Lake Mead NRA.
  • Interagency training was delivered to 70 volunteers.


Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Ending March 31, 2006, Margaret N. Rees Mar 2006

Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Ending March 31, 2006, Margaret N. Rees

Anti-littering Programs

• A community-based roundtable met three times this quarter to suggest goals and objectives for the anti-litter strategic plan.

• Project Manager Doug Joslin is representing the public lands on a Clark County Recycling Advisory Committee, which met twice this quarter.

• Four public service announcements were produced by UNLV students, with one selected by the team for use in the Southern Nevada messaging campaign.

• The Clint Eastwood Take Pride in America PSA aired 74 times in January 2006 and was viewed by 116,802 people.

• The interagency team has begun arrangements for paper recycling in partnership with the …


Technical Documentation For The Approximate Point Locations And Year Of Collection For Over 50,000 Specimens In The University Of Michigan Herbarium's Michigan Flora Database, Rachel A. Simpson Mar 2006

Technical Documentation For The Approximate Point Locations And Year Of Collection For Over 50,000 Specimens In The University Of Michigan Herbarium's Michigan Flora Database, Rachel A. Simpson

School of Natural Resources: Faculty Publications

This is the technical documentation for a set of mapped points representing the approximate locations at which over 50,000 plant specimens were collected in Michigan. The specimens are a subset of those documented in the University of Michigan Herbarium's Michigan Flora Database, compiled by E.G. Voss.