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Obtaining Assistance To Control Wildlife Damage, Philip S. Gipson, Russel F. Reidinger Jr.

Prevention and Control of Wildlife Damage Handbook

The Wildlife Society (TWS) policy statement for wildlife damage control (1992) states: “Prevention or control of wildlife damage . . . is an essential and responsible part of wildlife management.” The role of wildlife damage control in our society is changing and so is public perception of it. This change is recognized among wildlife managers and researchers. Efforts are under way to make the wildlife damage control profession more responsive to concerns of society. Formal petition for the establishment of a Wildlife Damage Working Group within TWS was made to the Wildlife Society Council on March 21, 1993 and the …

Aggregation And Sedimentation Processes During A Spring Phytoplankton Bloom: A Field Experiment To Test Coagulation Theory, Thomas Kiørboe, Claus Lundsgaard, Michael Olesen, Jørgen L. S. Hansen

Journal of Marine Research

Spring diatom blooms in temperate waters are often terminated by aggregation of the cells into large flocs and subsequent mass sedimentation of the phytoplankton to the sea floor. The rate of aggregate formation by physical coagulation depends on the concentration of suspended particles, on the turbulent shear that makes particles collide, and on their stickiness (= probability of adhesion upon collision). During a mixed diatom bloom in a shallow Danish fjord, for 3 weeks we monitored the concentration and stickiness of suspended particles and the species composition of the phytoplankton at 2–3 d intervals and we estimated the turbulent shear …

Study On The Neural Cell Adhesion Molecules In Heart Development Of Chicken, Mee Kyeong Byeon

MUSC Theses and Dissertations

Cell adhesion molecules mediate specific cell-cell interactions during embryogenesis and tissue formation. Among cell-cell adhesion molecules (CAMs), we have been particularly interested in the neural cell adhesion molecule (NCAM) which is the prototypical member of the family of Ca++ -independent CAMs. Previous studies of NCAM cDNAs have revealed an alternatively spliced set of small exons (12A, 12B, 12C, 12D) that encode a region in the extracellular portion of the molecule known as the muscle specific domain (MSD). The entire MSD region can be expressed in skeletal muscle, heart, and skin; only exons 12A and 12D have been found in brain. …

Writing In The Biology Classroom, Kristen Ann Occulto

Graduate Theses and Dissertations

No abstract provided.

Bacterial Activity And Biomass In Alkaline Fen Sediments: Seasonal Field And Laboratory Studies, Timothy C. Gsell

Graduate Theses and Dissertations

No abstract provided.

The Role Of Opsonin-Independent Bacterial Adherence In The Pathogenesis Of Legionnaires' Disease, Frank Clinton Gibson

Doctoral Dissertations

Legionella pneumophila is a facultative intracellular bacterial pathogen which initiates infection of the human host by adhering to macrophages in the alveoli of the lung following which internalization and intracellular multiplication occurs. In this study a novel mechanism of opsonin-independent attachment for this organism to host cells was identified. L. pneumophila serogroup 1, strain Nottingham N7, and U-937 cells as well as primary guinea pig alveolar macrophages were used to study this adherence phenomenon.

A variety of assay methods were used to evaluate the nature of this binding event: transmission electron microscopy and scanning electron microscopy were used to visualize …

Focus Emu, February 8, 1994, Office Of Public Information

Focus EMU

No abstract provided.

Repeated Quinpirole Treatment: Locomotor Activity, Dopamine Synthesis And Effects Of Selective Dopamine Antagonists, Bruce A. Mattingly, James K. Rowlett, Michael T. Bardo

Faculty Research at Morehead State University

A report submitted by Bruce A. Mattingly the Research and Creative Productions Committee on the repeated treatment with the non-selective dopamine agonist apomorphine results in behavioral sensitization and enhanced dopamine synthesis in dopamine projection fields.

Patterns Among Host Plants Of Potato Leafhopper, Empoasca Fabae (Homoptera: Cicadellidae), William O. Lamp, Gary R. Nielsen, Stephen D. Danielson

Department of Entomology: Faculty Publications

Ecological characteristics of potato leafhopper, Empoasca fabae (Harris), including polyphagy, suggest that non-economic plant species in the landscape may be important to its population ecology. The objectives of this study were to compile a host list, to ascertain taxonomic and ecological patterns within the list, and to determine host utilization in non-crop habitats. The host plant list included 220 species in 100 genera and 26 families. Fabaceae represented 47% of the genera and 62% of the species. Yet, the list includes a diversity of taxonomic groups within the class Magnoliopsida, representing highly divergent chemistry and morphological types. Ecological classifications, based …

Marine Mammal Studies Supported By The Northeast Fisheries Science Center During 1980-89, Gordon T. Waring, Janeen M. Quintal, Tim D. Smith

United States Department of Commerce: Staff Publications

Marine mammal research supported by the Northeast Fisheries Science Center from 1980 to 1989 is described in the context of four research areas defined retrospectively: (1) ecological roles and habitat requirements, (2) human interactions, (3) optimum sustainable population size, and (4) research planning and archiving. Within each area, contract and in· house projects are grouped into a number of research topics which are based on actual projects completed. Research activities and results, along with the total amount of money spent, are summarized for each topic. The relationship of the research supported over the decade to the recommendations of a research …

Historic Trends In The Secchi Disk Transparency Of Lake Pontchartrain, J.C. Francis, M.A. Poirrier, D.E. Barbe, V. Wijesundera, M.M. Mulino

Gulf and Caribbean Research

A major environmental concern about Lake Pontchartrain is an assumed long-term increase in turbidity based on Secchi disk transparency observations. Regression of the available data on Secchi disk transparency versus time (1953 through 1990) reveals a statistically significant decrease in transparency of about 40%. However, the data set is biased in that it does not adequately represent the seasonal effects of salinity and wind speed. Two analytical procedures were undertaken to determine the extent to which the apparent long-term decrease in transparency was dependent on the seasonal bias. One procedure involved seasonal adjustment of the data for the effects of …

Winchell Papers

Journal of the Minnesota Academy of Science

Abstracts of Winchell Papers.

The Relationships Of Cognitive Style And Motivation To Biology Achievement For Filipino Students, Linda C. Torres

UNF Graduate Theses and Dissertations

This study examined the relationships of cognitive style and motivation to the biology achievement of Filipino students in a North Florida high school. The effects of gender and grade level on test scores, grades, and academic motive responses were considered during data analysis. This sample was found to be more analytical and field-independent when compared with normative groups. Significant correlations were established between achievement and field-independence, persistence, sequential abilities, mobility, and gender. Different academic motives were evident with different achievement measures. When achievement was measured by biology final grades, high achievers felt less pressure, tried harder, and were not motivated …

Phylogeography Of The Desert Horned Lizard (Phrynosoma Platyrhinos) And The Short-Horned Lizard (Phrynosoma Douglassi): Patterns Of Divergence And Diversity, Kenneth Bruce Jones

UNLV Retrospective Theses & Dissertations

Historical environmental change is thought to have played an important role in the diversification of the biota of western North America. Many patterns of diversification have been associated with glacial-interglacial cycles of the latest Pleistocene. Recent evidence on diversification patterns in small mammals suggests a response to older environmental change, especially the uplift of the western North American cordillera; To evaluate the relative influence of old and recent historical environmental change on lineage diversification, mitochondrial DNA molecular phylogeographies of Phrynosoma douglassi (the short-horned lizard) and Phrynosoma platyrhinos (the desert horned lizard) were analyzed. Both species are widespread and have relatively …

Use Of Log Normal Transformation In Environmental Statistics, Sally L Stewart

UNLV Retrospective Theses & Dissertations

The log normal transformation is commonly used in the analysis of environmental data. The sample histogram of observed contaminant concentrations from a Superfund site typically appears to be log normal and the concentration data is log-transformed so that the classical statistical methods based on normal distribution can be used. USEPA guidance documents on statistical evaluation of attainment of cleanup standards for soils suggest using the log normal transformation in case the contaminant concentration data appears to be log normal. There are two basic problems with using a transformation in data analysis: (i) interpretation of results, and (ii) in transforming a …

Research : Co-Operation Is The New Style, John Hamblin, Ian Maling

Journal of the Department of Agriculture, Western Australia, Series 4

Co-operative Research Centres, or CRCs as they are known, are a new trend in agricultural research. Instead of organisations such as Departments of Agriculture or universities pursuing their own individual research projects, sometimes in competition or covering similar fields, the idea is to combine talents and expertise. CRCs were a Federal Government initiative launched in 1990, and the Centre for Legumes in Mediterranean Agriculture was the first involving agriculture in Western Australia.

Introduction: One Hundred Years Of Natural History In Turkmenistan, Victor Fet

Biological Sciences Faculty Research

As part of the famous “Great Game” between the Russian and British Empires in Central Asia, Turkmenistan was the last colonial prize of the Russian tsars; its delineation from Afghanistan was completed only in the 1890s. The Russian Empire’s Transcaspian Region (Zakaspiiskaya Oblast) was roughly what Turkmenistan is today; its neighbors were the semi-independent emirate of Bokhara to the east and khanate of Khiva to the north, both remnants of medieval Muslim empires.

This book combines the results of basic scientific research in biogeography and ecology; its purpose is to give a fairly comprehensive account of the nature of Turkmenistan. …

Models To Predict Yield Loss Due To Weeds In Rice Ecosystems, John L. Lindquist

Department of Agronomy and Horticulture: Faculty Publications

Yield loss models have been developed and evaluated for irrigated rice ecosystems with respect to effects of Echinochloa crusgalli. Simple regression models that give the relation between yield loss and weed density or relative leaf area are discussed with respect to their practical value in weed management in rice. More complex eco-physiological process models have been developed and used for rice ecosystems as well. Such models can be useful as a tool in research, whereas more simple approaches are needed for practical application in weed management.

Isolation, Structural Elucidation And Structure-Activity Studies Of Natural Products From Regional Plants Of The Asteraceae., Tiansheng Lu

LSU Historical Dissertations and Theses

In a biochemical systematic study of the plant family Asteraceae combined with a search for bioactive natural products, the isolation and structural elucidation of secondary metabolites from seven plant species is reported. Investigation of the roots of Solidago canadensis provided six known and one new clerodane diterpenes related to kolavenic acid and five known matricaria ester-type polyacetylenes. The roots and aerial parts of Solidago rugosa afforded the known diterpenes kolavenol, hardwickiic acid, ($-$)-kaur-16-en-19-oic acid, (+)-manool, (+)-3$\beta$-hydroxymanool, manoyl oxide and ent-abietic acid and the new labdane diterpene, (+)-18-tigloyloxymanool, plus four new ent-abietane diterpenes. The isolation of two new and eight known …

Gender, Crime, And The Criminal Law Defenses, Deborah W. Denno

Faculty Scholarship

This Article attempts to explain some of the disparity in criminality between males and females by analyzing the results of the “Biosocial Study,” one of this country's largest longitudinal studies of biological, psychological, and sociological predictors of crime. Section II analyzes the literature and research on gender differences in crime. Section III describes the Biosocial Study and its results, noting the gender differences in the prevalence and prediction of crime and the inability of any one factor to be a strong predictor of crime. Section IV considers whether gender differences warrant disparate types of punishment or treatment within the criminal …

Chesapeake Bay Phytoplankton: I. Composition, Harold G. Marshall

Biological Sciences Faculty Publications

A list of 708 Phytoplankton taxa from 10 algal divisions has been compiled for the Chesapeake Bay and is based on the analysis of 2384 water samples over three decades of study.

Examination Of Gender-Related Attitudes Among Managers, Mary Ann Massey

Electronic Theses and Dissertations 1990 - 1999

This two-part study included two procedures: (1) the development of an instrument to assess gender-related attitudes among male and female managers, and (2) the collection and analysis of data on gender-related attitudes among male and female managers. Male and female managers (n = 165) responded on a Likert scale to 30 gender-related statements about male and female managers from their own perspective and then based on their opinions of how other male and female managers might respond to the statements. The topic addresses the undercurrents of conflict and dissension that are accompanying paradigmatic changes in traditional management practices and the …