Environmental Sciences Commons^™

Diel Foraging Behavior Of American White Pelicans ()Pelecanus Erythrorhynchos) On Experimental Aquaculture Ponds , Scott J. Werner

United States Department of Agriculture Wildlife Services: Staff Publications

Videography and night vision equipment were used to observe the diurnal and nocturnal activities of American white pelicans (Pe1ecanus erythrorhynchos) (N= 6) foraging on three experimental (0.04 ha) channel catfish (Ictalurus punctatus) aquaculture ponds in March 2001. Captive pelicans spent most time foraging per hour from 1700 through 2300 h (CST). No foraging was observed from 0700 through 0800 h. Fish captures per hour were greatest from 1700 through 1900 h. On average, captive pelicans (N = 5) consumed 1.0 ± 0.2 kg of catfish per bird per day during the 10-d foraging …

Alligators As West Nile Virus Amplifiers, Kaci Klenk, Jamie Snow, Katrina Morgan, Richard Bowen, Michael Stephens, Falacia Foster, Paul Gordy, Susan Beckett, Nicholas Komar, Duane Gubler, Michael Bunning

United States Department of Agriculture Wildlife Services: Staff Publications

Recent evidence suggests that American alligators (Alligator mississippiensis) may be capable of transmitting West Nile virus (WNV) to other alligators. We experimentally exposed 24 juvenile alligators to WNV parenterally or orally. All became infected, and all but three sustained viremia titers >5.0 log₁₀ PFU/mL (a threshold considered infectious for Culex quinquefasciatus mosquitoes) for 1 to 8 days. Noninoculated tankmates also became infected. The viremia profiles and multiple routes of infection suggest alligators may play an important role in WNV transmission in areas with high population densities of juvenile alligators.

Current And Historic Freshwater Mollusk Distributions Of The Upper Coosa River Basin, Sabrina Felicitas Novak

Masters Theses and Doctoral Dissertations

This thesis contains summary data from all Tennessee Aquarium Research Institute (TNARI) survey activities of freshwater mollusks within the upper Coosa River basin (UCRB) from 1998 to 2003. Survey results of 4 different TNARI studies, a total of 515 separate collections, are presented. My component of the study examined 231 sites primarily in the Coosawattee and Etowah river basins in 2002 - 2003. In addition to the 231 sites surveyed, a large database was constructed from natural history museum records to evaluate temporal changes in species richness and distribution across the UCRB. Of 43 mussel and 33 snail species reported …

Risk Perceptions Of Adults In The Town Of Unicoi, Tennessee, Regarding The Possible Building Of A Uranium Enrichment Plant., Shannon Kathleen Sellards

Electronic Theses and Dissertations

A prolonged siting controversy for a uranium enrichment facility has occurred in the Town of Unicoi, Tennessee. One hundred-seventy residents of Unicoi were interviewed using a questionnaire regarding the building of a proposed uranium enrichment facility for Unicoi. The questionnaire sought to determine relationships between residents’ risk perceptions and 18 variables. When the Fisher’s exact procedure was applied at α< 0.05, the results indicated several associations. Odds ratio measured the strength of association. Results are reported as crude measures of association. Risk perceptions were influenced by the choice of possible locations for the facility [p=0.0003; OR=32.6]. Residents' risk perceptions were associated with a history of working with nuclear materials [p=0.0476; OR=3.2]. Finally, risk perceptions were associated with residents' beliefs that the nuclear facility would affect their health [p=0.0001; OR=18.8]. These results are discussed in light of risk perception and communication theories.

Tracking The Sea-Level Signature Of The 8.2 Ka Cooling Event: New Constraints From The Mississippi Delta, Torbjörn E. Törnqvist, Scott J. Bick, Juan L. Gonzalez, Klaas Van Der Borg, Arie F. M. De Jong

School of Earth, Environmental, & Marine Sciences Faculty Publications

The ever increasing need for accurate predictions of global environmental change under greenhouse conditions has sparked immense interest in an abrupt, century‐scale cooling around 8200 years ago, with a focal point in the North Atlantic and with hemispheric teleconnections. Despite considerable progress in the unraveling of this striking feature, including a conceivable driving mechanism (rapid drainage of proglacial Lake Agassiz/Ojibway and a resulting reduced strength of North Atlantic thermohaline circulation), several key questions remain unanswered. One salient aspect concerns the total amount of freshwater released during this catastrophic event, likely echoed by a near‐instantaneous eustatic sea‐level rise. So far, no …

Fundamental And Applied Experimental Investigations Of Corrosion Of Steel By Lbe Under Controlled Conditions: Kinetics, Chemistry, Morphology, And Surface Preparation: Quarterly Report (October-December 2004), Allen L. Johnson, John Farley, Dale L. Perry

Transmutation Sciences Materials (TRP)

This project has four components:

(1) the fabrication of a materials test apparatus with unique capabilities,

(2) comparative studies of steel corrosion under gas phase conditions comparable to the Lead Bismuth Eutectic (LBE) oxygen control conditions,

(3) isotope labeling studies, and

(4) collaborative efforts with other workers in the field.

The Electrochemical Separation Of Curium And Americium: Quaterly Report August-December 2004, David W. Hatchett, Kenneth Czerwinski

Separations Campaign (TRP)

This research report outlines the current status and progress associated with the electrochemical separation of Curium and Americium. The following pages outline the progress on our project to date. We have been actively performing research on this project for three months and are currently on schedule in terms of the proposed timelines.

The initial focus of the project involved setting up the laboratories for the studies outlined in the grant proposal. The instrumentation needed included an electrochemical work station that will perform the bulk of the electrochemical studies. This instrument will complement the electrochemical instrumentation in Dr. Hatchett’s laboratory and …

Dissolution, Reactor, And Environmental Behavior Of Zro2-Mgo Inert Fuel Matrix: Quarterly Report, October 2004 To December 2004, Earl Wolfram, Thomas Hartmann, Kenneth Czerwinski

Fuels Campaign (TRP)

This project will examine inert matrix fuels containing ZrO₂ and MgO as the inert matrix, with the relative amount of MgO varied from 30% to 70% in ZrO₂. Reactor physics calculations will be used to examine suitable quantities of burnable poisons from the candidate elements Gd, Er, or Hf with reactor grade Pu providing the fissile component, with up to 10% of ²³⁹Pu. Ceramics will be synthesized and characterized based on the reactor physics results. The solubility the fuel ceramics, in reactor conditions, reprocessing conditions, and repository conditions, will be investigated in a manner to provide …

Magmatic Sources, Setting And Causes Of Eocene To Recent Patagonian Plateau Magmatism (36°S To 52°S Latitude), Suzanne M. Kay, Matthew Gorring, Victor A. Ramos

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

Continental back-arc and within-plate basaltic volcanic provinces provide a view into the evolution of the mantle beneath continents and the mass flux of materials that are subducted, but not extracted by arc volcanism. One of the largest continental mafic provinces is the Patagonian province where large mafic plateau volcanic events ranging in age from late Paleocene to Recent have occurred in the absence of major extension. The largest events produced the Eocene Posadas Formation (∼46°S to 50°S), the late Oligocene to early Miocene Somuncura magmatic province (41°S to 43°S plus similar age magmas up to 46°S), the late Miocene to …

A Watershed-Based Classification System For Lakes In Agriculturally-Dominated Ecosystems: A Case Study Of Nebraska Reservoirs, Henry N. N. Bulley

Department of Geography: Dissertations, Theses, and Student Research

In recent decades substantial progress has been made in improving the quality of surface waters in the United States (Hawkins et al., 2000; EPA, 2000; EPA, 2001); nevertheless, much work remains to be done in assessing the state of impairment of lake waters. Impairment implies that the existing water quality of a lake, as measured by selected criteria (e.g., nitrogen, phosphorus, chlorophyll-a, Secchi depth), exceeds a threshold value or standard that presumably reflects optimal attainable lake water quality conditions (or "reference" conditions) (Hughes, 1995; EPA, 2000; EPA, 2001). Such impaired waters are not suitable for designated uses such as drinking, …

Education In The Environment: A Hands-On Student Research And Outdoor Learning Experience: Quarterly Progress Report, Period Ending November 30, 2004, Margaret N. Rees

Reports (PLI Education)

During the past three-months, the focus of the university’s efforts has been 1) making progress on the hiring of permanent project managers for the Education in the Environment Strategy and the Forever Earth / Wonderful Outdoor World on the Water (WOW) projects; 2) completing legal review of the cooperative agreement and standard operating procedures required for the university to assume operations of the Forever Earth vessel; and 3) writing curriculum for the WOW and Forever Earth projects.

Attractiveness Of Brown Rice Baits To Non-Target Birds In Harvested Corn And Soybean Fields, George M. Linz, Gregory A. Knutsen, H. Jeffrey Homan, William J. Bleier

United States Department of Agriculture Wildlife Services: Staff Publications

Brown rice is used as a bait-carrier for the avicide DRC-1339 (3-chloro-4-methyladhe) when baiting blackbirds (Icteridae). In March and April 1996 and 1997, we assessed non-target granivorous bird use of rice-baited plots placed in harvested corn and soybean fields in eastern South Dakota for 168 observation hours. In both years combined, we identified 10 and 14 granivorous species in corn and soybean fields, respectively. In 1996 (X = 0.2, SE = 0.04) and 1997 (X = 1.2, SE = 0.38), total numbers of granivores min^-1 were similar between crops (P ≥ 0.322). In 1996, bird numbers …

Absorption, Distribution, And Excretion Of [14C]-3-Chloro-4 Methylaniline Hydrochloride In Two Species Of Birds Following A Single Oral Dose, David A. Goldade, John D. Tessari, John J. Johnston

United States Department of Agriculture Wildlife Services: Staff Publications

Ring-labeled [¹⁴C]-3-chloro-4-methylaniline hydrochloride (250 μg per bird) was delivered to 21 red-winged blackbirds (Agelaius phoeniceus) and 21 dark-eyed juncos (Junco hyemalis) via oral gavage, and the distribution and excretion of radioactivity were determined at 15 and 30 min and 1, 4, 8, 12, and 24 h (n = 3 per time point). Direct measurement of radioactivity as well as measurement following combustion was accomplished using a liquid scintillation counter. Elimination from most tissues followed a two-compartment model, with very rapid elimination occurring between time 0 and 4 h and a much slower elimination …

Characterizing The Regulatory Environment Affecting The Forest Products Industry In California, Richard Thompson, Christopher Dicus

Natural Resources Management and Environmental Sciences

No abstract provided.

Calcium Responses Of Chicken Trigeminal Ganglion Neurons To Methyl Anthranilate And Capsaicin, Michael L. Kirifides, Michael P. Kurnellas, Larry Clark, Bruce P. Bryant

United States Department of Agriculture Wildlife Services: Staff Publications

Using digital fluorescence imaging, we determined the effects of methyl anthranilate (MA), an avian irritant, and capsaicin (CAP), a mammalian irritant, on intracellular calcium ([Ca2+]i) in chicken trigeminal neurons. Concentration–response functions indicated that the threshold for inducing increases in [Ca2+]i was higher for CAP (30·mmol·l–1) than for MA (10·mmol·l–1). The maximum magnitudes of [Ca2+]i in response to MA and CAP were compared after normalization to 40·mmol·l–1 KCl. At equal concentrations (300·mmol·l–1), trigeminal neurons responded with a greater change in [Ca2+]i to MA (78% of KCl) than to CAP (43% of KCl). Furthermore, at 300·mmol·l–1, 48% of neurons responded to MA …

Fueling Loading And Potential Fire Behavior After Selective Harvest In Coast Redwood Stands, Christopher Dicus

Natural Resources Management and Environmental Sciences

No abstract provided.

Red Rock Desert Learning Center Core Group Meeting: November 16, 2004, Red Rock Desert Learning Center

Reports (RRLC)

1. Introductions (5 min.)
2. Approval of Minutes from October 19 Meeting (5 minutes)
3. Presentation of Biology Curriculum Strands – Paul Buck (15 min.)
4. Discussion of Possible Advisory Board Structures – Michael Reiland (15 min.)
5. Update from Line and Space Architects – Les Wallach/Henry Tom (20 min.)
6. Discussion of Student Risk Analysis/Liability Issues (15 min.)
7. Standing Reports (10 minutes)
   A. UNLV/CESU Update – Nancy Flagg
   B. BLM Update – Michael Reiland
8. Committee Reports (5 min.)
   A. Building Committee – Angie Lara
9. Open Discussion / New Business (5 min.)
   A. January Meeting – Tuesday, January 18, 10:30 a.m., UNLV Paradise
   Campus
   B. Core …

An Exploratory Study That Examines Perceptions, By The Regulated Community, On The Effectiveness Of Air Quality Permitting For Clark County, By The Department Of Air Quality And Environmental Management, Scott Jelinek

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Clean Air Act of 1970 (CAA) made the Environmental Protection Agency (EPA) responsible for establishing and maintaining federal programs that control air quality. In turn, each state was delegated responsibility for air quality within its borders, although this responsibility may be shared with Native Americans or tribal lands. In many states, jurisdiction has been delegated to regional or local agencies that are then responsible for air quality in their respective air basins. Even though terrain or water bodies define the physical boundaries of air basins, they are usually designated by County boundaries for regulatory convenience (Wooley, David R., 1997).

Proposed Experimental Actions For Water Years 2005-2006 Colorado River, Arizona, In Glen Canyon National Recreation Area And Grand Canyon National Park, U.S. Department Of The Interior, Bureau Of Reclamation, National Park Service, U.S. Geological Survey

All U.S. Government Documents (Utah Regional Depository)

In September 2002 the Bureau of Reclamation, National Park Service (NPS), and U.S. Geological Survey released an environmental assessment (EA) on proposed experimental releases from Glen Canyon Dam and removal of non‐native fish from the Colorado River in Grand Canyon, Arizona (Bureau of Reclamation, NPS, and USGS 2002). The experiment was developed by the Grand Canyon Monitoring and Research Center of the U.S. Geological Survey (GCMRC), cooperating scientists, and the Technical Work Group (TWG) of the Glen Canyon Dam Adaptive Management Program (GCDAMP). It was recommended to the Secretary of the Interior by the Adaptive Management Work Group (AMWG), a …

Canadian Cooperative Wildlife Health Centre, Annual Report 2003-2004 (English)

Canadian Cooperative Wildlife Health Centre: Newsletters and Publications

About the CCWHC
What We Do
Wildlife Disease Surveillance
Wildlife Disease Surveillance - Highlights from 2003
CCWHC Information Technology Centre
Information Services
Education
Wildlife Disease Response and Management
Publications and Reports
Financial Report for 2003-2004 - Revenues
Financial Report for 2003-2004 - Expenses
Staff and Associates of the Canadian Cooperative Wildlife Health Centre 2003-04

South Yarding Focus Catchment Report, A Hollick

Resource management technical reports

This report provides a record of the activities carried out by the South Yarding Focus Support Team and Catchment Group. It covers the results of investigations and summarises the group's catchment plan of South Yarding, Western Australia, based on the best available information on soils, groundwater hydrology, surface water control, alternative crops and pastures and revegetation options.

Soil-Landscape Mapping In South-Western Australia : An Overview Of Methodology And Outputs, Noel R. Schoknecht, Peter J. Tille, B R. Purdie

Resource management technical reports

This report provides an overview of the soil-landscape mapping program for south-Western Australia. It outlines the techniques and standards used in describing the soil-landscape as well as the outputs of the mapping program and their uses.

Refuge Update – November/December 2004, Volume 1, Number 5

RefugeUpdate (USFWS-NWRS)

Table of Contents:

In the Eye of the Storm, page 3 Bon Secour Refuge biologist details a storm’s aftermath.

Looking Beyond the Ecology to the Human History, page 5 Archaeology students survey Fish Springs Refuge.

Focus on . . . Water and Its Impact on Refuges, pages 8-19 Water is essential for all ecological processes. Nowhere is that more evident than on national wildlife refuges.

Sharing an Appreciation for Nature, page 6 Those who are visually disabled can appreciate any refuge.

The Nadca Probe, Issue 236

The Probe: Newsletter of the National Animal Damage Control Association

Observations of the "Rodentator" Device for Controlling Blackailed Prairie Dogs
Bruggers to Head NWRC
CALENDAR OF UPCOMING EVENTS
Are rodents immune from contracting rabies?
The ICWDM Continues to Evolve
Wyoming Presents Grizzly Bear Management Proposal
Vantassel Moves to the University of Nebraska

The Industrial Symbiosis Research Symposium At Yale: Advancing The Study Of Industry And Environment, Marian Chertow, Weslynne Ashton, Radha Kuppalli

Yale School of the Environment Publications Series

Industrial symbiosis (IS), a sub-field of industrial ecology, is principally concerned with the cooperative management of resource flows through networks of businesses as a means of approaching ecologically sustainable industrial activity. Isolated researchers in a broad range of disciplines have investigated industrial symbiosis from a variety of starting points without a common agenda. The Industrial Symbiosis Research Symposium was held in January 2004 at Yale University, bringing together more than 30 experts from 15 countries to discuss critical questions and issues in this emerging area.The purpose of the Symposium was to give researchers an opportunity to share their knowledge and …

Fisheries Research Contract Report No. 10 - Mother-Of-Pearl Shell (Pinctada Maxima): Stock Evaluation For Management And Future Harvesting In Western Australia, Anthony M. Hart, Kim J. Friedman

Fisheries Research Contract Reports

The West Australian Pearling industry is one of Australia's most valuable aquaculture industries, currently generating around $120 - $160 million annually. The majority of pearl shell used to culture pearls come from the pearling beds in the inshore waters near Broome. The fishery for pearl oysters preferentially targets smaller (120mm - 165mm DVM) shell (hereafter defined as 'culture' shell), that are more suitable for culturing of pearls, leaving larger MOP oysters (175mm+) on the pearling grounds. These larger pearl oysters, the majority of which are female (protandric hermaphrodites), form a major component of the broodstock for the

fishery. Although MOP …

Evaluating The Use Of In Vitro Bioassays For The Ecotoxicological Assessment Of Irish Estuarine Sediments, Sharon Ni Shuilleabhain

Doctoral

Sediments, as a repository for persistent anthropogenic contaminants, have the potential to cause deleterious effects in the aquatic environment. Particular attention to the quality of sediment is, therefore, warranted in the ecotoxicological risk assessment of aquatic systems. An assessment methodology combining chemical, ecotoxicological and ecological evaluations in a hierarchial test strategy, where toxicological significant and complexity increases with the tiers, is recommended for a thorough appraisal of sediment toxicity. The aim of the present study was to assess the potential of in vitro bioassays to be employed as screening tools got Tier 1 ecotoxicity evaluation of Irish estuarine sediments. Chemical …

Inside Unlv, Cate Weeks, Carol C. Harter, Holly Ivy De Vore, Gian Galassi, Diane Russell

Inside UNLV

No abstract provided.

Evaluation And Management Of Chronic Wasting Disease Transmission, Kurt C. Vercauteren

United States Department of Agriculture Wildlife Services: Staff Publications

National Wildlife Research Center Scientists Assess the Potential for Chronic Wasting Disease (CWD) Transmission Between Wild and Domestic Cervids and Develop Methods to Reduce/Manage the Disease

Wildlife Services’ (WS) National Wildlife Research Center (NWRC) is the only Federal research organization devoted exclusively to resolving conflicts between people and wildlife through the development of effective, selective, and acceptable methods, tools, and techniques. As increased urbanization leads to a loss of traditional wildlife habitat, the potential for conflicts between people and wildlife increases. Such conflicts can take many forms, but recently the potential for the transmission of diseases among wildlife, livestock, and …

Development Of A High Performance Liquid Chromatography/Mass Spectroscopy Method For The Determination Of Strychnine Concentrations In Insects Used To Assess Potential Risks To Insectivores, Randal S. Stahl, Wendy M. Arjo, Kim K. Wagner, Carol Furcolow, Dale L. Nolte, John J. Johnston

United States Department of Agriculture Wildlife Services: Staff Publications

A high performance liquid chromatography/mass spectrometry (HPLC/MS) method was developed in support of a study to assess potential tertiary risks posed to insectivores by strychnine baited pocket gophers (Thomomys sp.). Necropholous insects are primary consumers of pocket gopher carcasses. A field study was conducted to collect insects from strychnine-baited and control pocket gopher carcasses. The majority of the insects collected were from the orders Diptera (flies, assayed separately as adults and larvae), Coleoptera (beetles), and Hymenoptera (ants and wasps, assayed separately). Samples (0.5 g) were extracted in acetic acid (2%) and analyzed with the mass spectrometer configured for tandem …