Digital Commons Network^™

Sensor-Assisted Video Mosaicing For Seafloor Mapping, Yuri Rzhanov, Randy G. Cutter Jr., Lloyd C. Huff

Center for Coastal and Ocean Mapping

This paper discusses a proposed processing technique for combining video imagery with auxiliary sensor information. The latter greatly simplifies image processing by reducing complexity of the transformation model. The mosaics produced by this technique are adequate for many applications, in particular habitat mapping. The algorithm is demonstrated through simulations and hardware configuration is described.

Porcine Zona Pellucida Immunocontraception: Long-Term Health Effects On White-Tailed Deer, Lowell A. Miller, Ken Crane, Stan Gaddis, Gary J. Killian

United States Department of Agriculture Wildlife Services: Staff Publications

As part of a 9-year study on the contraceptive effects of Porcine Zona Pellucida (PZP) on white-tailed deer (Odocoileus virginianus), we analyzed serum chemistry panels during the first 4 years. This included the first 2 years when does were being actively immunized, and 2 years post-immunization. The chemistry panel was designed to detect pathologies that might result from the immunization of the deer. Blood chemistry results did not suggest any pathological changes resulting from the immunization. Seasonal differences in serum cholesterol were similar in both the control and PZP-treated groups. Seasonal changes in the mean body weights of …

Organic Vegetables : A Guide To Production, Steven Mccoy

Bulletins 4000 -

There appears to be considerable opportunity for the development of organic vegetable production in Western Australia for either fresh or processed product. While a number of growers are successfully producing relatively small quantities of organic vegetables for both domestic and export markets, few large scale commercial growers have sought to capitalise on this opportunity.

Consumer interest in organically grown vegetables has increased rapidly in recent years due largely to concerns relating to food safety, health and the environment. For more information on markets for organic vegetables refer to AGWEST publication “Market Prospects – Organic Carrots and other Vegetables”.

The Standardized Fish Bioassay Procedure For Detecting And Culturing Actively Toxic Pfiesteria, Used By Two Reference Laboratories For Atlantic And Gulf Coast States, Joann M. Burkholder, Harold G. Marshall, David W. Seaborn, Nora J. Deamer-Melia

Biological Sciences Faculty Publications

In the absence of purified standards of toxins from Pfiesteria species, appropriately conducted fish bioassays are the "gold standard" that must be used to detect toxic strains of Pfiesteria slop. from natural estuarine water or sediment samples and to culture actively toxic Pfiesteria. In this article, we describe the standardized steps of our fish bioassay as an abbreviated term for a procedure that includes two sets of trials with fish, following the Henle-Koch postulates modified for toxic rather than infectious agents. This procedure was developed in 1991, and has been refined over more than 12 years of experience in …

The Role Of Predation In Wildlife Population Dynamics, Eric M. Gese, Frederick F. Knowlton

United States Department of Agriculture Wildlife Services: Staff Publications

The role predation plays in the dynamics of prey populations is controversial. Our understandings of predator-prey relationships is complicated by a multitude of factors in the environment and a general lack of knowledge of most ecological systems. Various other factors, besides predation, may regulate or limit prey populations, and various factors influence the degree to which predation affects prey populations. Furthermore, some factors may create time lags, or even cause generational effects, that go unnoticed. Herein, we review the role of predation in wildlife population dynamics, some of the factors influencing predator-prey interactions, and attempt to indicate where the professional …

Almonds Western Australia, Andrew Quinn, David Pocock

Horticulture published reports

The Almond industry 1s one of the less explored new industry options in Western Australia, despite offering one of the more significant opportunities for expansion and market development. Previous attempts to expand the industry have met with little progress primarily because of the small orchard areas planted, limited economies of scale, significant impact by birds and absence of a local processing plant.

Global Almond exports exceed US$1 billion per annum and are dominated by California. Almond products are traded in the international commodity market with prices primarily set by the USA.

Critical to the development of the industry in Western …

Public Reaction To Mandated Language For U.S. Drinking Water Quality Reports, Branden B. Johnson

RISK: Health, Safety & Environment (1990-2002)

The author discusses results of a survey evaluating the mandated language for United States drinking water quality reports.

Journalists' Views Of The Environment: Issues And Challenges, Bernadette West, Jane Lewis, Michael Greenberg

RISK: Health, Safety & Environment (1990-2002)

In advocating the use of an environmental handbook for journalists, the authors report on a survey of reporters and editors regarding salient environmental issues in different regions of the United States and e emphasis placed on environmental reporting in newsrooms.

Carbon Dynamics In Peat Bogs: Insights From Substrate Macromolecular Chemistry, Kuder Tomasz, Michael A. Kruge

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

The macromolecular compositions of subfossil plants from boreal Sphagnum bogs and restiad bogs (New Zealand) have been studied by pyrolysis-gas chromatography/mass spectrometry to evaluate the extent of degradation in the anoxic zone (catotelm) of a peat bog. Degradation of vascular plant polysaccharides was apparent only into the upper catotelm. Sphagnum was degraded more slowly than vascular plants, but no cessation of degradation was observed. The inferred rate of degradation varied depending on type of plant, extent of aerobic, precatotelmic degradation, and mode of litter deposition (rooting versus at the surface). Environmental forcing on anaerobic carbon dynamics would potentially be largest …

The Prairie Naturalist Volume 33, No.3 September 2001

The Prairie Naturalist

SEASONAL REPRODUCTION IN SIGMODON HISPIDUS INHABITING TALLGRASS PRAIRIES OF OKLAHOMA ▪ J. A. Wilson and R. L. Lochmiller

USE OF THE INDEX OF BIOLOGICAL INTEGRITY IN EASTERN SOUTH DAKOtA RIVERS ▪ C. L. Milewski, C. R. Berry, and D. Dieterman

SEED USE BY VERTEBRATES AND INVERTEBRATES IN TALLGRASS PRAIRIE ▪ A. W. Reed, G. A. Kaufman, J. E. Boyer, Jr., and D. W. Kaufman

RANGE EXPANSION OF THE PILEATED WOODPECKER IN NORTH DAKOTA ▪ J. A. Dechant 163

LAB FATTENING AND NON-INVASIVE ESTIMATES OF BODY COMPOSITION IN DEER MICE ▪ E. T. Unangst, Jr., M. J. Blair, M. W. Granger, …

Improvement Of Image Alignment Using Camera Attitude Information, Yuri Rzhanov, Lloyd C. Huff, Randy G. Cutter Jr.

Center for Coastal and Ocean Mapping

We discuss a proposed technique for incorporation of information from a variety of sensors in a video imagery processing pipeline. The auxiliary information allows one to simplify computations, effectively reducing the number of independent parameters in the transformation model. The mosaics produced by this technique are adequate for many applications, in particular habitat mapping. The algorithm, demonstrated through simulations and hardware configuration, is described in detail

Canadian Cooperative Wildlife Health Centre, Volume 8-1, Summer 2001

Canadian Cooperative Wildlife Health Centre: Newsletters and Publications

Raptor Carcasses Needed for Assessment of Lead Exposure: CWS and CCWHC cooperative project
Radio-telemetry for Detecting and Understanding Disease
Update on West Nile Virus in North America
French heartworm in red fox and domestic dogs in Newfoundland
Raccoon Rabies Reaches New Brunswick
Neurological Disease in Moose in Nova Scotia
Brain Abscesses in White-tailed Deer
Suspected predation by ravens on nesting painted turtles
Marine Mammals in British Columbia
Chronic Wasting Disease in free-ranging mule-deer in Saskatchewan

Quorum Sensing In The Dimorphic Fungus Candida Albicans Is Mediated By Farnesol, Jacob M. Hornby, Ellen C. Jensen, Amber C. Lisec, Joseph J. Tasto, Brandon Jahnke, Richard Shoemaker, Patrick Dussault, Kenneth W. Nickerson

Patrick Dussault Publications

The inoculum size effect in the dimorphic fungus Candida albicans results from production of an extracellular quorum-sensing molecule (QSM). This molecule prevents mycelial development in both a growth morphology assay and a differentiation assay using three chemically distinct triggers for germ tube formation (GTF): L-proline, N-acetylglucosamine, and serum (either pig or fetal bovine). In all cases, the presence of QSM prevents the yeast-to-mycelium conversion, resulting in actively budding yeasts without influencing cellular growth rates. QSM exhibits general cross-reactivity within C. albicans in that supernatants from strain A72 are active on five other strains of C. albicans and vice versa. …

Fisheries Research Report No.128 - Aquaculture And Related Biological Attributes Of Abalone Species In Australia - A Review., Kylie A. Freeman

Fisheries Research Reports

China and Taiwan are the major producers of cultured abalone; with annual production estimated at 3,500 and 3,000 tonnes respectively. The world production of cultured abalone sold in 1999 was 7,775 tonnes. Australian farm production was still relatively low (89 tonne in 1999) but numerous abalone farms have been proposed and many have been constructed. On a national scale, Tasmania and South Australia are the major states involved in temperate abalone culture; however, new projects have commenced in Victoria and considerable interest exists in New South Wales. Pilot scale trials with tropical abalone aquaculture using the Donkey-ear abalone (Haliotis asinina) …

Biotechnology Of Whey Using Yeast Fungi Isolated From Local Environment, Mouza Suhail Al Muhairi

Theses

The potential threat of whey pollution to the soil environment and ultimately groundwater resources in UAB promoted the elements of concern to the utilization of the whey waste. This work was conducted in AI-Ain area to isolate new fermenting yeast strains, from local soils, capable of fermenting whey lactose.

Soil samples were collected from two locations in AI-Ain area (near Al-Ain dairy farm & AI-Markhania area) and from a neighboring area (AI-Buraimi) based on the soil nature and ecological parameters. Inorganic elements and organic residues of the soil samples were characterized. Results indicated that AI-Buraimi soil is rich in nitrate …

Wildlife Damage News, Volume 1, Spring 2001

Wildlife Damage News

CONTENTS:

The Northeast Wildlife Damage Management Research and Outreach Cooperative by Paul Curtis, Cornell University and Gary San Julian, Penn State University, Co-Directors

Bats in the Attic

Review of Current Literature
Excerpted by Kristi Sullivan, Wildlife Communication Specialist Castelli, P.M. and S.E. Sleggs.

Wildlife Damage Management Fact Sheet Series (2001) by Paul Curtis and Kristi Sullivan

Managing Nuisance Beavers Along Roadsides (2000) by Paul Jensen, Paul Curtis and D. Hamelin

Managing White-tailed Deer in Suburban Environments: a Technical Guide (2000) by Anthony DeNicola, Kurt VerCauteren, Paul Curtis, and Scott Hygnstrom

Managing Canada Geese in Urban Environments (1999): a Technical Guide …

A Dendrochemical Analysis Of Lead, Aluminum, And Calcium In Southern Appalachian American Beech., Laura Suzanne Southerland

Electronic Theses and Dissertations

The health of the northern hardwood forest in the Southern Appalachian Mountains of Tennessee, North Carolina, and Virginia has recently gained attention from the media and environmental stakeholders. This project was designed to examine concentrations of metals, including lead, aluminum, and calcium in growth rings of an important northern hardwood species, American beech (Fagus grandifolia Ehrh.) at Mount Rogers and Whitetop Mountain, Virginia. Dominant and codominant trees were sampled from sixteen research plots located at two different elevations. Samples were crossdated, divided into sections of ten-year periods, and analyzed using atomic absorption spectroscopy. Concentrations of metals were negatively correlated …

The Efficacy Of Plant Residue Degradation Products On Phosphorus, Iron, Iodine, And Fluorine Bioavailability To Plants, Cheryl L. Mackowiak

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Plant and animal wastes degrade in soils to form relatively stable humified compounds, which form ion complexes that affect the bioavailability of elements in the soil solution. Hydroponic studies with wheat and rice were conducted to characterize the effect of humic acid (HA) on phosphorus (P), iron (Fe), fluorine (F), and iodine (I) bioavailability. Ferrihydrite [Fe(OH)₃] precipitation was greater on root surfaces without HA or synthetic chelates. Oxides such as ferrihydrite strongly adsorb P and provide exchange sites for metals. HA reduced this precipitate and increased P and Fe uptake.

Humic acid had no effect on F toxicity …

Effects Of High Ammonium/Nitrate Ratios On Nitrification And Growth Of Wheat In Hydroponics, Dawn J. Muhlestein

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nitrogen is the only plant nutrient taken up as both a cation (NH₄⁺) and anion (NO₃^-). Nitrate is considered the "safe" form of N and NH/ is generally thought to be toxic, especially at high levels. High NH₄⁺/NO₃^- ratios are thought to be toxic because they result in a rhizosphere pH low enough to damage root membranes, induced cation deficiencies, and build-up of NH3 caused by delayed NH/ assimilation. These factors can be minimized in hydroponic culture. The objective of these studies was to quantify the effects of high …

Program Abstracts, 113th Session, Iowa Academy Of Science, April 20-21, 2001, Iowa Academy Of Science

Iowa Academy of Science Documents

Presentation abstracts from the annual meeting of the Iowa Academy of Science

Conversion Of Virulent Cryphonectria Parasitica From The Lula Lake Land Trust To Hypovirulent Strains, Pearl Hwang

Honors Theses

For almost a century, the fungus, Cryphonectria parasitica has existed in the United States as a wound parasite to American chestnut (Castanea dentata) trees. However, hypovirulence, evidence of spontaneous healing in Italy and Michigan, has given the American chestnut trees hope to one day be restored into its natural range. Viruses were the cause of such spontaneous healings. My hypothesis was that a viruscontaining hypovirulent strain of C. parasitica (in a brown background) would share alleles that control anastomoses with the local virulent strains, so a virus that causes hypovirulence could be transmitted into local virulent strains in vitro. Fifty …

Impacts Of Supplemental Feeding On The Nutritional Ecology Of Black Bears, Steven T. Partridge, Dale L. Nolte, Georg J. Ziegltrum, Charles T. Robbins

United States Department of Agriculture Wildlife Services: Staff Publications

Black bear (Ursus americanus) damage to managed conifer stands during the spring in the U.S. Pacific Northwest is a continuing management concern. Because bear damage to managed conifers may reflect the limited availability of nutritious foods, supplemental feeding has been used to decrease damage. Highly palatable, pelleted feed is provided ad libitum from April until late June when berries ripen and such damage stops. We examined black bear use of supplemental feed during the spring and summer of 1998 and 1999 in western Washington. Bears were captured in areas where supplemental feed was provided and in control areas …

Rocky Mountain Wolf Recovery 2001 Annual Report

Rocky Mountain Wolf Recovery: Annual Reports

Wolves in the Northern Rocky Mountains (Idaho, Montana and Wyoming) continue to increase in distribution and numbers (Figures 1,5). Estimates of wolf numbers at the end of 2001 were 261 wolves in the Central Idaho Recovery Area, 218 in the Greater Yellowstone Recovery Area, and 84 in the Northwest Montana Recovery Area (Figure 1, Tables 1,2,3,4). By state boundaries, there were an estimated 251 wolves in the state of Idaho, 189 in Wyoming and 123 in Montana. Of the 63 groups of 2 or more wolves, at least 34 wolf packs met the definition of “breeding pair,” an adult male …

Impacts Of Supplemental Feeding On The Nutritional Ecology Of Black Bears, Steven T. Partridge, Dale L. Nolte, Georg J. Ziegltrum, Charles T. Robbins

United States Department of Agriculture Wildlife Services: Staff Publications

Black bear (Ursus americanus) damage to managed conifer stands during the spring in the U.S. Pacific Northwest is a continuing management concern. Because bear damage to managed conifers may reflect the limited availability of nutritious foods, supplemental feeding has been used to decrease damage. Highly palatable, pelleted feed is provided ad libitum from April until late June when berries ripen and such damage stops. We examined black bear use of supplemental feed during the spring and summer of 1998 and 1999 in western Washington. Bears were captured in areas where supplemental feed was provided and in control areas …

Porcine Zona Pellucida Immunocontraception: Long-Term Health Effects On White-Tailed Deer, Lowell A. Miller, Ken Crane, Stan Gaddis, Gary J. Killian

United States Department of Agriculture Wildlife Services: Staff Publications

As part of a 9-year study on the contraceptive effects of Porcine Zona Pellucida (PZP) on white-tailed deer (Odocoileus virginianus), we analyzed serum chemistry panels during the first 4 years. This included the first 2 years when does were being actively immunized, and 2 years post-immunization. The chemistry panel was designed to detect pathologies that might result from the immunization of the deer. Blood chemistry results did not suggest any pathological changes resulting from the immunization. Seasonal differences in serum cholesterol were similar in both the control and PZP-treated groups. Seasonal changes in the mean body weights of …

Black Bear Forest Damage In Washington State, Usa: Economic, Ecological, Social Aspects, Georg J. Ziegltrum, Dale L. Nolte

United States Department of Agriculture Wildlife Services: Staff Publications

Black bear (Ursus americanus) damage to coniferous forests can be detrimental to the forest products industry in Washington state. Value of timber damage, west of the Cascade Mountains is millions of dollars every year. The Washington Forest Protection Association’s (WFPA) Animal Damage Control Program (ADCP) manages bear damage in cooperation with the Washington Department of Fish and Wildlife (WDFW). Bears can significantly affect the viability of other wildlife, for example, elk (Cervus elaphus) calf predation on calving sites. Conversely, bear-damaged trees add to the snags and dead wood on the ground, which provide important habitat and …

Effect Of Feeding Stations On The Home Ranges Of American Black Bears In Western Washington, Philipp Fersterer, Dale L. Nolte, Georg J. Ziegltrum, Hartmut Gossow

United States Department of Agriculture Wildlife Services: Staff Publications

Forest managers establish feeding stations throughout coniferous forests in western Washington that are vulnerable to American black bear (Ursus americanus) damage in the spring. This study was conducted to determine whether the home ranges of bears in areas with supplemental feeding were smaller than the home ranges of bears in similar adjacent areas without supplemental feeding. Home range sizes varied among bears. However, the home range sizes of bears in feeding areas did not differ (P > 0.35) from home ranges of bears in non-feeding areas. Male bears had larger (P = 0.0002) home ranges than female …

Bear Behavior In The Vicinity Of Supplemental Feeding Stations In Western Washington, Dale L. Nolte, Timothy J. Veenendaal, Georg J. Ziegltrum, Philipp Fersterer

United States Department of Agriculture Wildlife Services: Staff Publications

Black bear can inflict severe negative Impacts on timber stands in the northwestern United States. A supplemental feeding program to provide bears an alternative food source during spring is practiced in the state of Washington, and to a lesser extent in other states. We initiated concurrent studies to assess characteristics of bear that forage at feeding stations, the interactions of bears around feeders, and impacts of the program on bear territories. Numerous bears fed at stations, including females with and without cubs, yearlings, and males. Bear feeding bouts at stations were generally short, less than 15 minutes. Bears generally fed …

Bear Behavior In The Vicinity Of Supplemental Feeding Stations In Western Washington, Dale L. Nolte, Timothy J. Veenendaal, George J. Ziegltrum, Philipp Fersterer

United States Department of Agriculture Wildlife Services: Staff Publications

Black bear can inflict severe negative Impacts on timber stands in the northwestern United States. A supplemental feeding program to provide bears an alternative food source during spring is practiced in the stat e of Washington, and to a lesser extent in other states. We initiated concurrent studies to assess characteristics of bear that forage at feeding stations, the interactions of bears around feeders, and impacts of the program on bear territories. Numerous bears fed at stations, including females with and without cubs, yearlings. and males. Bear feeding bouts at stations were generally short, less than 15 minutes. Bears generally …

Alfalfa For Beef Cattle, W. Roy Burris

Kentucky Alfalfa and Stored Forage Conference

Alfalfa is sometimes said to be "too good" for beef cattle. Although it's nutritional value may sometimes exceed beef cows' needs, to dismiss it's potential for beef cattle would be a mistake. Alfalfa can be useful as a harvested feed or as a grazing crop.