Digital Commons Network^™

Temporal Use Patterns Of Wintering Starlings At A Southeastern Livestock Farm: Implications For Damage Control, J.F. Glahn, S.K. Timbrook, D.J. Twedt

Eastern Wildlife Damage Control Conference: 3rd (1987)

The farm use patterns of individually marked and transmitter-equipped starlings at a livestock farm in south-central Kentucky were studied each month during the principal damage period (December-February) of 1982-83 and 1984-85 following a pilot study in January and February of 1980. In addition to intensive observation at the farm, sightings of tagged starlings away from the farm were solicited from the public and mapped. For each year of data on individual starlings that used the farm at least once after marking, the expected frequencies of farm occurrence were calculated and compared to observed frequencies. In all 3 years, there was …

Fox Squirrels Cause Power Outages: An Urban Wildlife Problem, J.C. Hamilton, R. J. Johnson, R. M. Case, M. W. Riley, W. W. Stroup

Eastern Wildlife Damage Control Conference: 3rd (1987)

In urban areas, power outages are caused each year by fox squirrels (Sciurus niger) that use electrical power equipment as travel lanes, rest sites, or for other activities. When a squirrel crosses a live bare wire on a transformer, the result is a blown fuse and electrocution of the squirrel. Power company outage reports were examined to determine when and where squirrel-caused outages occurred. Sixteen field sites in Lincoln were selected for study. Eight sites encircled transformers with ≥4 squirrel-caused outages, 1980-1985, and eight were adjacent control sites with no such outages. Squirrel behavior in relation to power …

Wildlife Damage To Agriculture In Nebraska: A Preliminary Cost Assessment, R. J. Johnson, R. M. Timm

Eastern Wildlife Damage Control Conference: 3rd (1987)

We estimate the annual financial losses resulting from wildlife damage to major crops and livestock in Nebraska. For each wildlife species, the damage problem is presented along with a description of how the estimate was made. Field crop estimates include losses from Plains pocket gophers (Geomys bursarius), commensal rodents (Rattus norvegicus and Mus musculus), field rodents in grain fields (e.g. Peromyscus maniculatus, Dipodomys ordi, Spermophilus tridecemlineatus), house sparrows (Passer domesticus), blackbirds (e.g. Agelaius phoeniceus and Quiscalus quiscula), lagomorphs (Sylvilaqus floridanus, Lepus californicus, and L. townsendii), deer …

Taxonomic Status Of Wild Canids In The Southeastern United States, Michael L. Kennedy

Eastern Wildlife Damage Control Conference: 3rd (1987)

In the last 20 years (especially during the last decade), reports of coyote-like wild canids have increased steadily in the southeastern United States. These canids have apparently become well established in many parts of the Southeast. Taxonomically, the coyote-like animal could represent coyote (Canis latrans), red wolf (C. rufus), gray wolf (C. lupus), domestic dog (C. familaris), or hybrids of these taxa. There has been wide speculation (especially among the general public) in some areas as to the taxonomic status of wild canids. General references to wild "coy-dogs" (coyote x domestic dog …

A State-Administered User-Pay Program For Nuisance Wildlife Control, Dale W. May

Eastern Wildlife Damage Control Conference: 3rd (1987)

In recent years Connecticut, like many other northeastern states, has experienced dramatic suburban encroachment into woodland and farmland areas. The expansion of human population and the accompanying habitat alteration have resulted in a substantial increase in the frequency of wildlife/human conflicts. The Department of Environmental Protection's Wildlife Bureau, mandated to respond to the needs of the people as well as the wildlife of Connecticut, is the state agency given the responsibility of controlling nuisance wildlife problems. Although the Wildlife Bureau provides free technical assistance and educational material, in many cases landowners are either unwilling or unable to resolve nuisance wildlife …

Lethal Roost Toxicants For Control Of Starlings And Blackbirds, Denver L. Otis

Eastern Wildlife Damage Control Conference: 3rd (1987)

Roosting congregations of starlings (Sturnus vulgaris) and several blackbird species (Icteridae) cause several millions of dollars in losses to agricultural crops throughout the United States. In addition, they are responsible for a variety of nuisance problems, human and livestock diseases, and human safety hazards. Dozens of tools have been developed for alleviating these problems, some of which are nonlethal techniques aimed at either roost dispersal or site specific protection of the problem site. Lethal baiting techniques for use at staging areas or at the problem site have also been developed. However, the most controversial solution involves the use …

Participants

Eastern Wildlife Damage Control Conference: 3rd (1987)

LIST OF PARTICIPANTS

Extension's Perspective Of Federal, State And Private Animal Damage Control Programs, Gary J. San Julian

Eastern Wildlife Damage Control Conference: 3rd (1987)

Extension personnel are in a unique position to observe and to be involved in animal damage control (ADC) programs at the federal, state and private levels. In order to offer educational programs, we must interpret regulations and policies to provide a workable interface between ourselves, other agencies and the public. This is not an easy task in such a sensitive and emotional area.

The lack of uniformity in policies among federal agencies as well as the hazy lines of authority and responsibility for some species makes it hard to provide guidance for our clientele. The growing involvement of the public …

Bait Stations For Controlling Voles In Apple Orchards, Mark E. Tobin, Milo E. Richmond

Eastern Wildlife Damage Control Conference: 3rd (1987)

Bait stations made with polyvinylchloride (PVC) pipe were compared with hand-broadcast applications of rodenticides for achieving long-term control of pine and meadow vole populations (Microtus pinetorum and M. pennsylvanicus, respectively) in two apple orchards in the mid-Hudson Valley of New York. The stations were constructed of three pieces of 1.5-in diameter PVC tubing joined together in the shape of an inverted "T". Roofing shingles were placed over the entrances to some of the bait stations to encourage use by voles, while others were left uncovered. All stations were tied to trees, with no attempt to place them near …

Preliminary Testing Of A Selenium-Based Systemic Deer Browse Repellent, T.R. Angradi, W.M. Tzilkowski

Eastern Wildlife Damage Control Conference: 3rd (1987)

Silviculturists use a variety of techniques, including repellents, to reduce browse damage by white-tailed deer (Odocoileus virginianus) to valuable eastern hardwood seedlings. Systemic selenium, sodium selenite, was evaluated with captive white-tailed deer for its repellency in white ash (Fraxinus americana) and black cherry (Prunus serotina) seedlings. Selenium had no effect in reducing browsing of black cherry. However, there was a reduction (p<0.05) in the white ash browsing level.

State Of The Fisheries Report 1986, Fisheries Department Of Western Australia

Status Reports of the Fisheries and Aquatic Resources

Western Australia continues to be one of the leading fishing States in Australia. The total gross value of fish, crustaceans and molluscs for 1985/86 was $139 million (Table 1) to which may be added the value of the pearl culture industry resulting in a total value of approximately $180 million.

Effects Of A Dispersed And Undispersed Crude Oil On Mangroves, Seagrasses And Corals, T. G. Ballou, Richard E. Dodge, S. C. Hess, A. H. Knap, Thomas D. Sleeter

Marine & Environmental Sciences Faculty Reports

The primary objective of this study was to evaluate the application of dispersant to spilled oil as a means of reducing adverse environmental effects of oil spills in nearshore, tropical waters. The results of numerous laboratory and field studies have suggested that dispersants may play a useful role in reducing adverse impacts on sensitive and valued environments such as mangroves, seagrasses, and corals. However, the use of dispersants has not been allowed thus far in most situations because of a lack of direct experimental data on the various effects of dispersants and the environmental trade-offs presumed to occur as a …

The Probe, Issue 76 - October 1987

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE
National Animal Damage Control Association
OCTOBER,1987
3rd Eastern Wildlife Damage Control Conference
APHIS Activity Report
Ferrets
Personnel
Guard Dogs

On-Line Sea Beam Acoustic Imaging, Christian De Moustier, F V. Pavlicek

Center for Coastal and Ocean Mapping

This paper describes a system designed and built at the Marine Physical Laboratory of the Scripps Institution of Oceanography to produce acoustic images of the seafloor on-line with a Sea Beammultibeam echo-sounder. This system uses a stand alone interface between the Sea Beam system and a grey-scale line-scan recorder. The interface is built around a Motorola 68000 microprocessor and has digitizing capabilities. It digitizes the detected echo signals from each of the 16 preformed beams inside the Sea Beam echo processor as well as the roll information given by the ship's vertical reference. Theacoustic data are then roll compensated and …

Student Profile, Fall 1987, Division Of Student Affairs, Wright State University, Dayton, Ohio, Office Of Student Information Systems, Wright State University

Wright State University Student Fact Books

The student profile fact book has general demographic information on all students enrolled at Wright State University for Fall Quarter, 1987.

Fox Squirrel Interaction With Electrical Transformers, J. Christopher Hamilton

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

No abstract provided.

Fox Squirrel Interaction With Electrical Transformers, J. Christipher Hamilton

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

No abstract provided.

Management Of Native Vegetation On Farmland In The Wheatbelt Of Western Australia, A M. Coates

Resource management technical reports

Clearing in the wheatbelt region of Western Australia has been rapid and extensive. The mapping of remnant vegetation in the shires of Dumbleyung, Lake Grace, Pingelly and Tammin with the use of the most recent aerial photography (1984) demonstrates the extent of clearing especially in the old established farming areas. Only 7 per cent of the Tammin shire had been retained under native vegetation, 10 per cent of the Dumbleyung shire and 14 per cent of the Pingelly shire. In the Lake Grace shire where large areas have only recently been developed for agriculture, approximately 31 per cent had been …

Thermal Tolerances And Preferences Of Fishes Of The Virgin River System (Utah, Arizona, Nevada), James E. Deacon, Paul B. Schumann, Edward L. Stuenkel

Publications (WR)

Critical thermal maxima (CTM) and thermal preferenda of the common fishes of the Virgin River were examined. Differences in final temperature preferenda and CTM for species with low thermal lability (speckled dace, spinedace, roundtail chub) correspond well with differences in their distribution and abundance in the river. These species shifted their acute thermal preferences relatively little as acclimation temperature increased. For thermally labile species (woundfin, red shiner, desert sucker, and fiannehnouth sucker), the final preferendum is a less precise indicator of probable distribution. The woundfin, an endangered fish, has a high CTM (39.5 C at 25 C acclimation) and a …

Phytoplankton Dynamics In The Very Low Salinity Region Of The James River Estuary, Virginia, U.S.A., Changho Moon

OES Theses and Dissertations

During summer and autumn discharge from the James River estuary, Virginia, was less than 120 _m³sec^-1. There was a peak phytoplankton biomass in the very low salinity region (defined as the location where surface salinity measured less than 0.5$ 0/00) and this peak represented five to ten times greater biomass than adjacent waters. The peak biomass occurred independent of the tidal state and the location of nutrient inputs. It disappeared during winter and spring, and nutrient limitation was not responsible for the low phytoplankton biomass, indicating there were physical, not chemical controlling factors.

The peak biomass …

Investigation Of Complex Formation By Oligomers Of Cytosine And Guanosine, Steven Roberts Davis

Chemistry & Biochemistry Theses & Dissertations

Duplex formation between oligo(C:G) _n where n=3 to 4 was shown not to occur under conditions favorable for duplex formation between poly G and poly C. Instead, a stable guano sine self-structure was found to form which a T_m of 50°C for (Gp)₃ and 80°C for (Gp)₄ at strand concentrations of 10^-5M in 1M NaCl. Neither a duplex nor a self-structure formed in the absence of salt.

Oligomers of guanosine and cytosine were obtained by basic hydrolysis and separated according to chain length using DEAE Sephadex column chromatography. Separation of cytosine oligomers with chain lengths …

Molting In The Mature Female Blue Crab, Callinectes Sapidus, Rathbun, Kirk J. Havens

OES Theses and Dissertations

The present study examines the hypothesis that mature female blue crabs, Callinectes sapidus, do not have a terminal anecdysis. Induced molting via eyestalk ablation, size frequency distributions and gonad and limb regeneration indices from field collected animals are used as indicators of potential post maturity molts.

Eyestalk ablation of mature females resulted in ecdysis approximately 51 days after ablation, indicating a physiological ability if mature females to complete ecdysis. Analysis of size frequency distributions indicates two distinct shifts from smaller to larger females, one in early spring and a second in early fall. While migration of larger females into …

Pontryagin's Maximum Principle, Chirasakdi Varuntanya

Theses

In a detailed presentation of Boltyanskii "elementary" proof of the Pontryagin's Maximum Principle, several gaps have been filled in the original one: The control processes which are considered in this paper are described by a system of ordinary differential equations, hence the uniform approach to O of certain O(ε) is proved. Moreover, a complete proof of a theorem about convex cones in Rn and a theorem from Topology are presented. An example of time optimal control illustrating the principle is also solved.

Determination Of Netropsin-Dna Binding Constants From Footprinting Data, Brian Ward, Robert Rehfuss, Jerry Goodisman, James C. Dabrowiak

Chemistry - All Scholarship

A theory for deriving drug-DNA site binding constants from footprinting data is presented. Plots of oligonucleotide concentration, as a function of drug concentration, for various cutting positions on DNA are required. It is assumed that the rate of cleavage at each nucleotide position is proportional to the concentration of enzyme at that nucleotide and to the probability that the nucleotide is not blocked by drug. The probability of a nucleotide position not being blocked is calculated by assuming a conventional binding equilibrium for each binding site with exclusions for overlapping sites. The theory has been used to evaluate individual site …

The Probe, Issue 75 - September 1987

The Probe: Newsletter of the National Animal Damage Control Association

THE PROBE
National Animal Damage Control Association
SEPTEMBER, 1987
The Transfer of the ADC to the USDA
APHIS Activity Reports
M-44 Alert
A record-breaking attempt to stuff a man and 250 rattlesnakes into a sleeping bag.
Personnel
The APHIS Fight Song
Letters to Ye Ed

The Prairie Naturalist Volume 19, No. 3. September 1987

The Prairie Naturalist

Paul B. Kannowski, Editor

Nikki R. Seabloom, Assistant Editor

Douglas H. Johnson, Book Review Editor

TABLE OF CONTENTS

DISTRIBUTION AND POPULATION TREND OF WESTERN MEADOWLARKS IN ILLINOIS ▪ R. D. Applegate and A. G. Willms

EFFECT OF DISRUPTIVE BACKGROUND ON PREDATION OF ARTIFICIAL NESTS BY AMERICAN CROWS ▪ L. G. Sugden

AVIAN HABITAT OCCUPANCY FOLLOWING FIRE IN A MONTANA SHRUB STEPPE ▪ C. E. Bock and J. H. Bock

ACTIVITY OF A WILD BLACK-FOOTED FERRET LITTER ▪ R. Paunovich and S. C. Forrest

EGG-DIAMETER DEVELOPMENT OF GIZZARD SHAD COLLECTED FROM A GREAT PLAINS RESERVOIR ▪ C. A. Cox and D. …

Polymerization In Nonaqueous Lyotropic Liquid Crystals With A Polymerizable Solvent, Stig Friberg, Chang Sup Wohn, Frances E. Lockwood

Chemistry Faculty Research & Creative Works

Lamellar liquid crystals of lecithin and 2-hydroxyethyl methacrylate (HEMA) were polymerized by using UV radiation. Optical microscopy, infrared spectroscopy, and small-angle X-ray diffraction were used to compare the structure prior to and after polymerization. The lamellar structure was retained after polymerization with increased interlayer spacing. © 1987, American Chemical Society. All rights reserved.

Benthic Invertebrates And Crayfish Of Lake Mead, Susan K. Peck, William L. Pratt, James E. Pollard, Larry J. Paulson, Donald H. Baepler

Publications (WR)

The objectives of this study were to:

1. Establish baseline densities of benthic invertebrates and relative abundance of crayfish in Lake Mead.

2. Evaluate the distributions of benthic organisms and crayfish in relation to existing habitat conditions and 1imnological characteristics of Lake Mead.

3. Measure seasonal changes in abundances of benthic organisms and crayfish in Lake Mead.

4. Compare observations of Procambarus clarkii life history in Lake Mead to reports from other aquatic systems.

5. Evaluate the importance of benthic organisms and crayfish as food sources for game fish in Lake Mead.

Overview Of The U.S. System Of Environmental Law, Lawrence J. Macdonnell

Proceedings of the Sino-American Conference on Environmental Law (August 16)

25 pages (includes illustrations).

Contains 3 pages of references.

Changing Policy Roles Of Environmental Science, Devra Lee Davis

Proceedings of the Sino-American Conference on Environmental Law (August 16)

6 pages.

Contains references.