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Comparative Developmental Toxicity Of Planar Polychlorinated Biphenyl Congeners In Chickens, American Kestrels, And Common Terns, David J. Hoffman, Mark J. Melancon, Patrice N. Klein, John D. Eisemann, James W. Spann

United States Department of Agriculture Wildlife Services: Staff Publications

The effects of polychlorinated biphenyl (PCB) congeners, PCB 126 (3,3′, 4,4′, 5-pentaCB) and PCB 77 (3,3′4,4′-tetraCB), were examined in chicken (Gallus gallus), American kestrel (Falco sparverius), and common tern (Sterna hirundo) embryos through hatching, following air cell injections on day 4. PCB 126 caused malformations and edema in chickens starting at 0.3 ppb, in kestrels at 2.3 to 23 ppb, but in terns only at levels affecting hatching success (44 ppb). Extent of edema was most severe in chickens and least in terns. Defects of the beak were common in all species but with …

Ua52/1 Hail Storm Memories, Wku Archives

WKU Administration Documents

Memories of WKU faculty, staff, alumni and the general public regarding the 1988 hail storm solicited by WKU Archives.

Inventory For Endangered, Threatened And Rare Plant And Animal Species Within The Floodplain Corridor Of The Middle Loup River Basin In Nebraska, Michael I. Fritz, Gerry Steinauer

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

This survey was conducted by Nebraska Natural Heritage Program of the Nebraska Game and Parks Commission with funding received from the U.S. Department of the Interior, Bureau of Reclamation, Grand Island office. This agreement was entered into on April 16, 1996. The objective of the agreement was to conduct a survey of a portion of the Loup River basin floodplain corridor for rare plant communities and plant and animal species. This is the final report of that survey. This report includes not only data collected directly as a result of field survey work associated with the project but also previous …

Midwater Fishes And Shrimps As Competitors And Resource Partitioning In Low Latitude Oligotrophic Ecosystems, T. L. Hopkins, Tracey Sutton

Marine & Environmental Sciences Faculty Articles

Oligotrophic tropical-subtropical oceanic regimes constitute the largest and most ancient ecosystem on earth, with these enormous areas being characterized by high faunal diversity. The stability and age of the ecosystem have enabled the evolution of many similar species niches where there is considerable overlap in niche parameters such as food and space, resulting in high species packing, especially in the epi- and mesopelagic zones. Competition for limited resources undoubtedly exists and has been described by MacArthur (1972; Geographical ecology, Harper and Row, New York) as diffuse competition where each species is impacted by many other species sharing the environment. Most …

A Diatom-Based Reconstruction Of Drought Intensity, Duration, And Frequency From Moon Lake, North Dakota: A Sub-Decadal Record Of The Last 2,300 Years, Kathleen R. Laird, Sherilyn C. Fritz, Brian F. Cumming

Department of Earth and Atmospheric Sciences: Faculty Publications

Diatom assemblages preserved in sediment cores from closed-basin lakes can provide high-resolution records of past hydrologic and climatic conditions, including long-term patterns in the intensity, duration, and frequency of droughts. At Moon Lake, a closed-basin lake in eastern North Dakota, a comparison of diatom-inferred salinity and the precipitation-based Bhalme-Mooley Drought Index (BMDI) over the last 100 years was highly significant, suggesting that the diatom record contains a sensitive archive of past climatic conditions. A sub-decadal record of inferred salinity for the past 2300 years indicates that extreme droughts of greater intensity than those during the 1930s “Dust Bowl” were more …

The Age Of The Kirkdale Cave Palaeofauna, Donald A. Mcfarlane, Derek C. Ford

WM Keck Science Faculty Papers

The Kirkdale Cave palaeofauna represents the original and classic 'warm', interglacial mammalian cave deposit in Britain. Although long considered to be 'Ipswichian' in age, no previous attempts to obtain radiometric dates have been recorded. Here we report a uranium-series disequilibrium date of 121,000 ± 4000 yr BP on a flowstone capping that overlay the original bone bed. The precision of the date exceeds that obtained at any other British Interglacial cave site, and permits tentative correlation with the high precision ice core records now available.

The John Muir Newsletter, Spring 1998, The John Muir Center For Regional Studies

Muir Center Newsletters (1981-2015)

NEWSLETTER YOSEMITE'S POETS: JOHN MUIR'S INFLUENCE ON THE CAREER OF ANSEL ADAMS by Joshua Greenfield, Master's Candidate at Hunter College, City University of New York John Muir was one of those exceptional men whose writing touches us deeply, revealing the world which is potentially avail- Wble to us all. The quality of Muir's vision has undeniably colored my own moods and response and clarified the statements of my camera. Ansel Adams Mm Muir and Ansel Adams were the two great poets of Yosemite H alley and the Sierra Nevada Mountains. As novelist Wallace fltegner pointed out in a 1985 memorial …

Resource Law Notes Newsletter, No. 43, Spring Issue, Mar. 1998, University Of Colorado Boulder. Natural Resources Law Center

Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)

No abstract provided.

Summary Of Submissions To Fisheries Management Paper No 108 - Issues Affecting Western Australia's Inshore Crab Fishery, Cathy Campbell

Fisheries Management Papers

The summary of submissions is a record of comments offered in respect to the contet of Fisheries Management Paper No. 108 : Issues affecting Western Australia's inshore crab fishery (the Issues Paper) and submitted by groups or individuals who have an interest in inshore crab fishing activity in this State. Concerns of the respective parties included a percieved decline in recreational crab catches at specific locations; instances of conflict between commerical and recreational crabs fishers in Geographe Bay; concern for the types of gear used to take crabs; a substantial rise in the catch of crabs in the Cockburn Sound …

The Selfish Book. Review Of: The Origins Of Virtue: Human Instincts And The Evolution Of Cooperation By Matt Ridley, Robert Costanza

Institute for Sustainable Solutions Publications and Presentations

Book Review of The Selfish Book. Review of: The Origins of Virtue: Human Instincts and the Evolution of Cooperation by Matt Ridley

Trophic Diversity Of A Mesopelagic Fish Community., Tracey Sutton, Thomas L. Hopkins, Thomas M. Lancraft

Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures

To understand the character of prey partitioning in a low latitude oligotrophic region, a composite picture of the trophic structure of a mesopelagic fish community was made from the eastern Gulf of Mexico. Two hundred and twenty three species were collected in the area of which I61 species were abundant enough for analyses. Fifteen major categories of prey biomass are identified for diet analyses: viz. copepods, ostracods, amphipods, euphausiids, decapods, larvaceans, salps, coelenterates (primarily siphonophores), unidentified gelatinous prey, polychaetes, gastropods, cephalopods, chaetognaths, fish, other food. Prey partitioning is minimal across major prey categories as the vast majority of mesopelagic fishes …

Fisheries Management Report No. 2 - Use Of Market Mechanisms For The Allocation Of Commercial Fishing Access Entitlements In Western Australia, Economics Consulting Services Pty Ltd

Fisheries Published Reports

This publication has been prepared as a discussion paper on the potential use of market-based mechanisms for allocating commercial fishing entitlements in Western Australia. The aim has been to explore alternative mechanisms for allocating entitlements and the circumstances under which various methods might be more effective.

Defining The Problem And Exploring Non Lethal Alternatives Including Land Management, John Hadidian

Buffalo Environmental Law Journal

Symposium: The Increasing Conflicts of Deer and Human Populations in Suburban Areas

Bait And Shoot, Jim Snider

Buffalo Environmental Law Journal

Symposium: The Increasing Conflicts of Deer and Human Populations in Suburban Areas

Realities Of Immunocontraception As A Management Option For White-Tailed Deer In Suburban Environments, William F. Porter

Buffalo Environmental Law Journal

Symposium: The Increasing Conflicts of Deer and Human Populations in Suburban Areas

Seven Steps To Achieving A Genuine Public Consensus On An Emotional Issue: With Specific Examples Of How Citizens' Task Forces Have Sometimes Failed, Sandra Vanallen Baker, Richard Matwyshen

Buffalo Environmental Law Journal

Symposium: The Increasing Conflicts of Deer and Human Populations in Suburban Areas

Panel Of Towns: Morris County, Nj: The Morris County Park Commission White-Tailed Deer Management Program: A Multi-Faceted Approach, Charlie Zafonte

Buffalo Environmental Law Journal

Symposium: The Increasing Conflicts of Deer and Human Populations in Suburban Areas

Circulation, Vol. 5, No. 3, Center For Coastal Physical Oceanography, Old Dominion University, Louis Codispoti, Steve Gaurin

CCPO Circulation

Spring 1998 issue of CCPO Circulation CCPO Circulation featuring article "Steve and Lou's Excellent Antarctic Adventure: Anectodal Observations of Birds, Ocean, and Human Zaniness at the Polar Front"

Spring 1998, Nsu Oceanographic Center

Currents

No abstract provided.

Florida Coral Reef Damage From Nuclear Submarine Grounding And Proposed Restoration, Kenneth Banks, Richard E. Dodge (Editor), Lou Fisher, David K. Stout, Walter Jaap

Marine & Environmental Sciences Faculty Articles

The United States submarine Memphis grounded in approximately 10 m water depth on a tropical coral reef ofT southeast Florida in February, 1993. The grounding caused extensive physical and biological damage to the reef substrate and to the coral community. As part of a claim by the State of Florida against the United States, the impact of the grounding was assessed, and the area of damage was determined through field and photographic studies. A recovery rate for the reef was assigned from literature estimates. The NOAA Habitat Equivalency Model (HEM) was used to calculate the reef area needed to be …

A Near-Surface Microstructure Sensor System Used During Toga Coare. Part I: Bow Measurements., Alexander Soloviev, Roger Lukas, Sharon Decarlo, Jefrey Snyder, A. Arjannikov, Vyacheslav Turenko, M. Baker, Dmitry Khlebnikov

Marine & Environmental Sciences Faculty Articles

High-resolution probes mounted on the bow of the vessel at a 1.7-m depth in an undisturbed region ahead of the moving vessel were used for microstructure and turbulence measurements in the near-surface layer of the ocean during TOGA COARE. The probes measured temperature, conductivity, pressure, three-component fluctuation velocity, and two components of acceleration. Accumulation of large amounts of high-quality nearsurface data poses a difficult challenge, and deployment from the bow of a ship, such as is done with these sensors, requires rugged, well-calibrated, and low-noise sensors. The heaving motion of the ship that causes the sensors to break through the …

Distance Dependence Of Electron Transfer Along Artificial Β-Strands At 298 And 77 K, S. R. L. Fernando, Gennady V. Kozlov, Michael Y. Ogawa

Chemistry Faculty Publications

Photoinduced electron-transfer rate constants were measured for a series of binuclear metallopeptides consisting of a [Ru(bpy)(2)(cmbpy)](2+) electron donor tethered to a Co-III(NH3)(5) electron acceptor by an oligovaline peptide chain (bpy = 2,2'-bipyridine, cmbpy = 4-carboxy-4'-methyl-2,2'-bipyridine). These compounds were shown by H-1 NMR to adopt the conformational properties found within the individual strands of a beta-pleated sheet in both aqueous and methanol solutions. Emission lifetime measurements and HPLC product analysis show that the binuclear donor/acceptor compounds undergo photoinduced electron transfer (ET). The values of k(et) decrease with increasing donor/acceptor distance according to the expression k(et) = k' exp[-beta(r(-)r(0))]. A distance attenuation …

State Of Tampa Bay 1997, Tampa Bay Regional Planning Council (Tbrpc), Agency On Bay Management

Reports

This, the eleventh "State of Tampa Bay" report, documents many of the programs and projects of 1997 relating to Tampa Bay. Prepared in accordance with the rules of the Agency on Bay Management and funded by the Tampa Bay Regional Planning Council, it includes a summary of the issues addressed by the Agency this year.

This year's "State of Tampa Bay" report includes summaries of many important projects. It is clear from the diversity of reports that Tampa Bay is receiving the attention it deserves from all quarters. Public and private sectors alike are working as never before to ensure …

The Probe, Issue 187 – April 1998

The Probe: Newsletter of the National Animal Damage Control Association

Thoughts... Robert H. Giles, Jr., President, NADCA
Vicar Takes Sunday Off to Join Hunt Marchers
Cat Contraceptive Approach Developed by Student Intern Michelle Meister-Weisbarth
California Trap Ban Initiative Submitted
Mourning Dove Debate Heats Up
Constitutional Amendment to require a "super majority" (2/3) vote on any wildlife issue on Utah Ballot
Sportsmen Gain Victory in New Jersey Case
NADCA Honors Wes Jones
WCFA Stands Up for Wildlife Management in New Mexico Case
Berryman Institute Announces 1998 Award Winners

More Reports From 4th Annual Conference of The Wildlife Society

The Use and Effectiveness of Various Predator Control Efforts at a Colonial Waterbird …

Neutral Dissociation Of Hydrogen Following Photoexcitation Of Hcl At The Chlorine K Edge, D. L. Hansen, J. Cotter, G. R. Fisher, K. T. Leung, R. Martin, Paul Neill, Rupert C. Perera, I. A. Sellin, Marc Simon, Y. Uehara, B. Vanderford, S. B. Whitfield

Chemistry and Biochemistry Faculty Research

Time-of-flight mass spectroscopy was used to study the relaxation dynamics of HCl following photoexcitation in the vicinity of the Cl K edge (~2.8 keV) using monochromatic synchrotron radiation. At the lowest resonant excitation to the 6ơ* antibonding orbital, almost half of the excited molecules decay by emission of a neutral H atom, mostly in coincidence with a highly charged Cln1 ion. The present work demonstrates that neutral-atom emission can be a significant decay channel for excited states with very short lifetimes (1 fs). [S1050-2947(98)03604-X]

Electrophoretic Deposition Of Polymer Chains On An Adsorbing Surface In (2+1) Dimensions: Conformational Anisotropy And Nonuniversal Coverage, Grace M. Foo, Ras B. Pandey

Faculty Publications

Electrophoretic deposition of polymer chains flowing in a (2 + 1)-dimensional system is studied by computer simulations. Steady-state surface coverage θ_j is found to decay with the chain's length, i.e., θ_j∼L_c^-a with a nonuniversal exponent α≃0.0-0.9 depending on the magnitude of driving field and temperature. Conformational crossover occurs for chains from a surface or wall to an adjacent bulk region with different scaling exponents for their longitudinal and transverse spread.

Water Current, Volume 30, No. 2, April 1998

Water Current Newsletter

Blizzard Doesn't Hamper "Nebraska Water 2000" Conference
From the Director: NIWR Meetings in Washington D.C.; Research Discussed; Summer Water Tour
Of Boreholes, Bunyips and Boxing Day
Water Stewards Receive Annual Awards at Water Conference in Kearney
Summer Water Tour to Visit Arkansas and Republican River Basins in August
AWWA Research Foundation RFPs
Water News Briefs
Wetlands ID Now Available
How to Boost Your Golf Course Values
EPA Restoration Website
Community Outreach Kits
Nebraska Range Shortcourse
1998 NIWR Executive Summary Available Free from NU

(A Note On)(2) The Shape Of The Erythrocyte, J. A. Adam

Mathematics & Statistics Faculty Publications

A note on the shape of the red blood cell is revisited, utilizing variational calculus to to find an extremum for the surface area of such a cell, using the volume as a constraint. A fairly significant error in the value of the volume is corrected, and the note concludes with a discussion of measures of cell shape (such as the sphericity index) which are more appropriate than the dimensional surface area to volume ratio.

Laboratory Evaluation Of Predator Odors For Eliciting An Avoidance Response In Roof Rats (Rattus Rattus), Michael D. Burwash, Mark E. Tobin, Anthony D. Woolhouse, Thomas P. Sullivan

United States Department of Agriculture Wildlife Services: Staff Publications

We evaluated eight synthetic predator odors and mongoose (Herpestes auropunctatus) feces for eliciting avoidance responses and/or reduced feeding by wild captured Hawaiian roof rats (Rattus rattus). In a bioassay arena, we recorded: (1) time until each rat entered the arena, (2) time elapsed until first eating bout, (3) time spent in each half of the arena, (4) number of eating bouts, and (5) consumption. Rats displayed a response to the predator odors in terms of increased elapsed time before initial arena entry and initial eating bout, a lower number of eating bouts, and less food consumption …

Seamless Metacomputing With Bond, Ladislau Bölöni, Kyung Koo Jun, Mihai Sirbu, Dan C. Marinescu

Department of Computer Science Technical Reports

No abstract provided.