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Water Quality Sampling, Analysis And Annual Load Determinations For Tss, Nitrogen And Phosphorus At The Washington County Road 195 Bridge On The West Fork Of The White River, Marc Nelson, Wade Cash, Keith Trost, Jennifer Purtle, Ralph Davis

Arkansas Water Resources Center Technical Reports

A water quality sampling station was installed at the Washington County road 195 bridge on the West Fork of the White River just above the confluence of the three main forks of the Upper White River in December 2001. The Quality Assurance Project Plan (QAPP) was approved by EPA Region six on March 2002 and sampling was begun at that time. This station is coordinated with a USGS gauging station at the same location. This station was instrumented to collect samples at sufficient intervals across the hydrograph to accurately estimate the flux of total suspended solids, nitrogen and phosphorus into …

Water Quality Sampling, Analysis And Annual Load Determinations For Tss, Nitrogen And Phosphorus At The L'Anguille River Near Palestine 2005 Annual Report, Marc Nelson, Wade Cash, Keith Trost, Jennifer Purtle, J.V. Brahana, R. Davis, K. Steele

Arkansas Water Resources Center Technical Reports

A water quality sampling station was installed at the L’Anguille River near Palestine in 2003. This station is coordinated with a USGS gauging station at the same location. This station is instrumented to collect samples at sufficient intervals across the hydrograph to accurately estimate the flux of total suspended solids, nitrogen and phosphorus in the River. The L’Anguille River was listed on Arkansas' 1998 (listed in later reports?) 303d list as impaired from sediment (turbidity). The L’Anguille River was the second stream to have total maximum daily loads (TMDL) determined in Arkansas. Accurate determination of stream nutrients and sediment is …

The Effect Of Temperature And Humidity On The Bionomics Of Six African Egg Parasitoids (Hymenoptera: Trichogrammatidae), A. Kalyebi, W. A. Overholt, F. Schulthess, J. M. Mueke, S. Sithanantham

All Peer-Reviewed Publications

The life table statistics of six native Kenyan species/strains of Trichogramma and Trichogrammatoidea were established using a factitious host Corcyra cephalonica, Stainton (Lepidoptera: Pyralidae), at eight different temperatures (10, 15, 20, 25, 28, 30, 32 and 35°C) and two humidity levels (40-50 and 70-80%). The objective was to select insects with superior attributes for augmentative release against lepidopteran pests in horticultural crops. Both temperature and humidity affected developmental time and life table parameters of the parasitoids but temperature played a more critical role. Developmental time was inversely related to temperature. The intrinsic and finite rates of increase increased with temperature …

Quality Management Plan - Mine Waste Technology Program, Mse Technology Applications, Inc.

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Molecular Characterization Of Wetland Soil Bacterial Community In Constructed Mesocosms, Ethan C. Bishop

Theses and Dissertations

The use of wetlands to effectively remediate aquifers contaminated with chlorinated solvents is an emerging technique, which shows high promise. In order to better understand this process and test its legitimacy, a treatment wetland was constructed at Wright-Patterson AFB, Dayton, Ohio and, in a joint effort with Wright State University (WSU), has previously shown the effective removal of PCE. The purpose of this research was to characterize the soil bacterial community, pre-PCE injection, among three wetland plant species from the sedge family (Cyperaceae) within constructed wetland mesocosms and to identify any bacterial dominance. Carex comosa, Scirpus atrovirens, and Eleocharis erythropoda …

An Experimental Approach To Modeling The Strength Of Canine Teeth, Patricia W. Freeman, Cliff A. Lemen

School of Natural Resources: Faculty Publications

The strength of canine teeth in several carnivores is found through direct fracture experiments. The average forces required to break the canines of adult animals are coyote 1170 N, red fox 533 N, bobcat 737 N and raccoon 512 N. Stresses created in teeth at the breaking load are predicted by finite-element analysis and beam theory. The ultimate tensile stress sustainable in these teeth is 338 MPa in adult animals. The large pulp cavity in the canines of young animals significantly weakens the bases of their teeth (by about 25%), but as the animal ages the pulp cavity decreases and …

Quantity And Quality Simulation In Al Ain Water Distribution System, Awbath Saleh Salem Al Jaberi

Theses

A hydraulic and chlorine simulation is conducted for three selected areas in Al Ain region. WaterCad 7.0, a water distribution system model, was chosen to conduct the simulation of the hydraulic behavior within the water distribution system. The fate of residual chlorine flowing through these systems over time is tracked by this software. The conducted hydraulic model predicts the performance of Al Yahar, AI Dhaher and Sweihan networks. Skeletonaization approach is employed in setting up the model for each system. In this study, the customer storage tanks (CSTs) are taken into consideration in performing the extended period simulation. Each group …

Evaluation Of Microbial Diversity In Wetland Through Polymerase Chain Reaction (Pcr) And Restriction Fragment Length Polymorphism (Rflp), Gregory K. Joseph

Theses and Dissertations

The diversity of microbial communities in wetlands has not been fully measured. These communities may offer tools to naturally remediate sites polluted with chlorinated compounds. Polmerase Chain Reaction (PCR) and Restriction Fragment Length Polymorphism (RFLP) are genomic techniques that are capable of rapidly characterizing bacteria communities and can provide valuable information about the diversity of microbial communities.

On The Spatial Nature Of The Groundwater Pumping Externality, Nicholas Brozovic, David L. Sunding, David Zilberman

Daugherty Water for Food Global Institute: Faculty Publications

Most existing economic analyses of optimal groundwater management use single-cell aquifer models, which assume that an aquifer responds uniformly and instantly to ground- water pumping. This paper demonstrates how spatially explicit aquifer response equations from the water resources engineering literature may be embedded in a general economic framework. Calibration of our theoretical model to published economic studies of spe- cific aquifers demonstrates that, by averaging basin drawdown across the entire resource, existing studies generally understate the magnitude of the groundwater pumping external- ity relative to spatially explicit models. For the aquifers studied, the drawdown predicted by single- cell models may …

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 (a_φ*) 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 …

Disease Emergence And Resurgence: The Wildlife-Human Connection, Milton Friend

Other Publications in Wildlife Management

Humans have been affected by and have contributed to the eruption and spread of disease since antiquity. This connectivity is such that disease in the Americas was one of the five Seeds of Change addressed by the National Museum of Natural History’s commemoration of the Columbus Quincentenary. As for the other Seeds of Change, diseases “…sent ripples around the globe, affecting the people as well as the flora and fauna of both the New World and the Old.” During recent decades, these ripples have become waves that are likely to intensify, swelled by human population growth, civil strife, and other …

Odonates At The Clark County Wetlands Nature Preserve: A Look At Habitat And Relative Abundance, Erin Jolley

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study is to identify the various species, relative abundance and habitat of dragonfly and damselfly larvae at the Clark County Wetlands Park Nature Preserve (WPNP). An accurate assessment of these insects can be useful in interpreting potential indications of environmental problems at the Wetlands. From this data, necessary improvements can be made to the dragonfly habitat as well as the habitat of other surrounding organisms. Habitat identification is considered especially important because it is "structured by instream and surrounding topographical features, and is a major determinant of aquatic community potential" (Southwood, 1977). For purposes of this …

Spatially Targeting Culex Quinquefasciatus Aquatic Habitats On Modified Land Cover For Implementing An Integrated Vector Management (Ivm) Program In Three Villages Within The Mwea Rice Scheme, Kenya, Benjamin G. Jacob, Josephat Shililu, Ephantus J. Muturi, Joseph M. Mwangangi, Simon M. Muriu, Jose Funes, John Githure, James L. Regens, Robert J. Novak

All Peer-Reviewed Publications

Background: Continuous land cover modification is an important part of spatial epidemiology because it can help identify environmental factors and Culex mosquitoes associated with arbovirus transmission and thus guide control intervention. The aim of this study was to determine whether remotely sensed data could be used to identify rice-related Culex quinquefasciatus breeding habitats in three rice-villages within the Mwea Rice Scheme, Kenya. We examined whether a land use land cover (LULC) classification based on two scenes, IKONOS at 4 m and Landsat Thematic Mapper at 30 m could be used to map different land uses and rice planted at different …

Fluctuating Asymmetry And Its Relationship To Established Indicators Of Environmental Stress., Matthew Stephen Shotwell

Electronic Theses and Dissertations

Fluctuating asymmetry (FA) is commonly thought to be a predictor of environmental stress. However, the relationship between FA and established indicators for environmental stress has received little attention. In this study, 10-38 specimens of the freshwater fish Rhinichthys atratulus were collected from 15 natural populations under varying amounts of environmental stress. Asymmetry measurements in three bilateral characters of the specimens were used to investigate the relationship between FA and established indicators of environmental stress. Significant differences in the magnitude of FA were observed between sampling locations. However, the relationship between estimates of FA and established indicators produced varying results. The …

Presentation To Snap Board Of Directors, Public Lands Institute

Interagency Science and Research Strategy

• Conduct survey and produce a written report on the various alternative workforce suppliers available to the federal agencies for land management activities; include descriptions of each type of supplier, types of work each can supply, and costs and reimbursement requirements.
• Identify required agreements and/or contracts and suggested adjustments needed in agency staffing to support alternative workforce capabilities.

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

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 …

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 …

Remapping The Cliff Chipmunk (Neotamias Dorsalis) Distribution And Creating A Habitat Association Model In Southern Idaho, Masako Niwa

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The distribution of the cliff chipmunk in Idaho was previously considered to include only the Raft River Valley and the Goose Creek Basin. A pilot study was conducted in 2003 and 2004. Thirty-five cliff chipmunk presence locations and 124 absence locations were recorded. Habitat variables of elevation, slope, deviation from south, distance to water, and vegetation type were extracted for all of the absence and presence points by means of GIS analysis. The data were analyzed by implementing a classification tree, and a "GIS habitat association model" was created. The model was tested in 2005, and the overall model accuracy …

Population Trends Of Wintering Bald Eagles (Haliaeetus Leucocephalus) At The Lake Mead National Recreation Area, Nevada, Deanna Morrell

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to look at population trends of wintering bald eagles (Haliaeetus leucocephalus) at the Lake Mead National Recreation Area, Nevada from 1991 to 2006. Bald eagles were counted on January 5, 2006 along the entire shoreline of Lake Mead and Lake Mohave. This study focused on two questions: (1) how has the population changed over time? (2) How has the proportion of juvenile eagles to adult eagles changed over time? Question one was supported with the number of bald eagles significantly increasing (r=0.76, p=0.002). Question two was supported as the proportion of juveniles to adults …

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 …

Microsatellite Variation Of Double-Crested Cormorant Populations In Eastern North America, M. Clay Green, Juliann L. Waits, Michael L. Avery, Mark E. Tobin, Paul L. Leberg

United States Department of Agriculture Wildlife Services: Staff Publications

Double-crested cormorants (Phalacrocorax auritus) exhibit highly adaptive and opportunistic foraging behavior. This flexibility in foraging and increases in population size have led to conflicts with aquaculture and recreational and commercial fishing (Duffy 1995). Although double-crested cormorants roosting in the lower Mississippi Valley appear to have minimal negative impact on sport fisheries, they may have a significant impact on commercial aquaculture production in this region (Glahn and Brugger 1995, Glahn et al. 1998). In 2003, the U.S. Fish and Wildlife Service released the Final Environmental Impact Statement on double-crested cormorant management allowing more flexibility in control of these birds …

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 …

Effectiveness Of Cane Toad Eradication Methods: Arakwal National Park, Matthew Miller

Independent Study Project (ISP) Collection

The cane toad (Bufo marinus) is a pest throughout Australia. Not only is it poisonous to native predators, it also consumes or out competes native fauna. It has only recently entered into Northern New South Wales where the site for this study is located, at Arakwal National Park. This study aims to discover the most effective method of cane toad eradication in the National Park.

Over the course of 18 days, three traps were set and rotated between 9 different sites. Traps were set at sunset and cleared at sunrise. The three traps used were; (1) Pitfall style trap by …

Decision Modeling: Why Farmers Do Or Do Not Convert To Organic Farming, Ryan Locke

Independent Study Project (ISP) Collection

This study examines why farmers in Northern New South Wales, Australia do or do not convert to organic farming from conventional farming practices. Organic agriculture provides a production alternative that may be environmentally and nutritionally beneficial. Because the structural settings of economy and society influence decision-making on an individual basis at the farm level, discussions of policy must consider why farmers do, or do not, convert to organic farming. Ultimately, the successfulness of a policy depends on the effectiveness of motivating individual action. A hierarchical decision tree was created using ethnographic decision tree modeling. Elimination criteria, motivational criteria, and constraints …

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. …

An Analysis Of Indicator Organism Suitability For Lower James And York Rivers, Rhonda Ashonti Ford

Civil & Environmental Engineering Theses & Dissertations

The primary objectives of this thesis are (1) determine if the proper indicator organism is being utilized to determine the bacterial water quality in the State of Virginia. (2) If other environmental factors can predict the bacterial water quality. The current indicator organism of choice for bacterial water quality of waters in the State of Virginia is enterococci, for estuarine and brackish waters. E. coli is the indicator organism of choice for fresh waters in Virginia.

The study concluded (1) Enterococci are the best indicator organism for beaches located in the Hampton Roads Harbor and the Lower James River. (2) …

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.

Lake Mead National Recreation Area Sensitive Wildlife Species Monitoring And Analysis: Quarterly Progress Report, Period Ending March 31, 2006, Margaret N. Rees

Wildlife Monitoring

• Research Assistant Professor hired to oversee NPS wildlife monitoring programs and serve as overall program coordinator for UNLV monitoring programs at Lake Mead National Recreation Area.
• Final report completed for 2004-2005 desert tortoise monitoring project.
• Final report completed for 2004-2005 relict leopard frog management.
• Recommendations for vegetation management research to improve relict leopard frog habitats at North Shore springs made to NPS Management Team
• Breeding surveys for relict leopard frog and egg collections for head-starting program completed.
• Final report completed of 2004-2005 monitoring efforts on peregrine falcons.
• Final report completed on 2004-2005 bald eagle monitoring.
• Bald eagle survey for 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.