Digital Commons Network^™

Statmod: A Tool For Interfacing Arcview® Gis With Statistical Software To Facilitate Predictive Ecological Modeling, Christine M. Garrard

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

As geographical information systems and spatial data become more accessible, predictive spatial modeling in ecology is becoming more common. Unfortunately, not all ecologists possess the necessary skills to successfully combine statistical models and geographical information systems. In response to this problem, I wrote an extension for ArcView^® GIS called StatMod. This extension interfaces ArcView GIS with SAS^® and S-PLUS^® statistical software and walks the user through creating and mapping logistic regression and classification and regression tree models.

StatMod was then used to run a series of analyses that would have been difficult without such a tool. A …

The Travel Behavior And Needs Of The Poor: A Study Of Welfare Recipients In Fresno County, California, Mti Report 01-23, Evelyn Blumenberg, Peter J. Haas

Mineta Transportation Institute

The passage of the Personal Responsibility and Work Opportunity Reconciliation Act of 1996 fundamentally transformed the provision of social assistance in the United States. Gone is Aid to Families with Dependent Children (AFDC), a program that entitled needy families with children to an array of benefits and public services. In its place is Temporary Assistance to Needy Families (TANF), a program that abolishes federal entitlements, provides flexible block grants to the states, mandates tough new work requirements, and imposes a five-year lifetime limit on the receipt of public assistance. Current welfare programs mandate employment for most recipients and offer temporary …

Microbial Ecology Of Freshly Sawn Yellow-Poplar Lumber ( Liriodendron Tulipifera L.) In Two Seasons, Mark Ryan Mikluscak

Graduate Theses, Dissertations, and Problem Reports

Each year, the forest products industry sustains considerable product loss due to a reduction in market value of lumber brought about by microbial discoloration. The current practice of treating green lumber with chemical biocides to protect it from discoloration, although successful, is a potential hazard to both the environment and human life. One potential alternative to chemical biocides is biological control. The most recent success in the field of biological control has been achieved in the agricultural industry by first studying the microbial ecology of the substrate in which the biologically based preservative is to be used. Literature on microbial …

Comparison Of Herpetofaunal Species Composition And Response To Edge On The Camp Dawson Collective Training Area, Preston County, West Virginia, Amy B. Spurgeon

Graduate Theses, Dissertations, and Problem Reports

Herpetofaunal species composition, abundance, and diversity were evaluated on the Camp Dawson Collective Training Area, Preston County, West Virginia, as a requirement of the Sikes Act (16 USC 670a et seq.), Army Regulation 200-3, and Department of Defense Instruction 4715.3. Herpetofauna were sampled using pitfall traps with drift fences and double-ended funnel traps, and also from area searches. Redback salamander (Plethodon cinereus), red-spotted newt (Notophthalmus v. viridescens ), eastern American toad (Bufo a. americanus), and wood frog (Rana sylvatica) were most common in pitfall arrays; mountain dusky salamander (Desmognathus ochrophaeus), Appalachian seal salamander (Desmognathus m. monticola), and redback salamander were …

Montana Kaimin, April 11, 2002, Associated Students Of The University Of Montana

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

Spectator 2002-04-04, Editors Of The Spectator

The Spectator

No abstract provided.

Mapping Environmental Injustices: Pitfalls And Potential Of Geographic Information Systems In Assessing Environmental Health And Equity., Juliana Maantay

Publications and Research

Geographic Information Systems (GIS) have been used increasingly to map instances of environmental injustice, the disproportionate exposure of certain populations to environmental hazards. Some of the technical and analytic difficulties of mapping environmental injustice are outlined in this article, along with suggestions for using GIS to better assess and predict environmental health and equity. I examine 13 GIS-based environmental equity studies conducted within the past decade and use a study of noxious land use locations in the Bronx, New York, to illustrate and evaluate the differences in two common methods of determining exposure extent and the characteristics of proximate populations. …

Anting Behavior In Birds: Ant Selection And Effect Of Ant Chemistry On Feather Ectoparasites, Hannah Carrington Revis

Biological Sciences Theses & Dissertations

Active anting behavior occurs when songbirds apply ants to their feathers. During anting displays, a bird draws its wings forward in front of the head and swings its tail around to the far right or left. Both wing and tail feathers are then rubbed with ants held in the bird's beak. The potential associations among ants, feather ectoparasites and birds make anting behavior an important community-level interaction. Although this behavior is cosmopolitan in distribution and occurs in a wide variety of passerine birds, it remains poorly understood. This dissertation tested hypotheses about anting behavior through controlled experiments with captive songbirds …

Summer Vertical Phytoplankton Distribution In The Lower Chesapeake Bay, Mollie Jill Weinstein

Biological Sciences Theses & Dissertations

Autotrophic picoplankton and phytoplankton composite samples were collected from the surface, pycnocline, and bottom water layers at three stations in the lower Chesapeake Bay between June and September 1993. Using light microscopy a total of 170 phytoplankton taxa were identified. Utilizing epifluorescent microscopy, the picoplankton taxa were distinguished by size, representing species with cells less than 2 microns. Diatoms were the dominant taxa during this period, with lesser representation by the other phytoplankton components. Within the picoplankton category, cyanobacteria were dominant. Statistical analyses of the data indicated the vertical composition and abundance of the phytoplankton was not significantly different over …

Ecological Studies Of Wolves On Isle Royale, 2001-2002, Rolf O. Peterson, John A. Vucetich

Ecological Studies of Wolves on Isle Royale

Annual Report 2001-2002

Tcwp Newsletter No. 244, Tennessee Citizens For Wilderness Planning

Tennessee Citizens for Wilderness Planning Newsletters

No abstract provided.

Endangered Species Bulletin, March/June 2002 - Vol. Xxvii No. 2

Endangered Species Bulletin

In this issue:
4 Lands of Contrast, Diversity, and Beauty
8 Endangered Species and the Arizona-Sonora Desert Museum
12 The Sonoran Desert Conservation Plan
16 The Chihuahuan Desert: Diversity at Risk
18 Restoring a Desert Oasis
20 Desert Fish: Life on the Edge
22 Life in Mauna Kea’s Alpine Desert
24 The Tarahumara Frog: Return of a Native
27 Leading-edge Science for Imperiled Bonytail
28 Las Vegas Places its Bets on Habitat Plan
30 Arizona Tribal Partnerships for Wildlife
32 New Mexico’s Little Known Treasures
34 Rio Grande Silvery Minnow
36 Black-footed Ferrets Return to Mexico
38 Regional News and …

Draft Plan Of Management For The Proposed Miaboolya Beach Fish Habitat Protection Area., Department Of Fisheries Western Australia

Fisheries management papers

The aims of the proposal outlined in this draft management plan is to protect and rehabilitate the aquatic habitat of Miaboolya Beach, the associated mangrove ecosystem, and involve the community in their management.

By setting the area aside as a FHPA, the Department of Fisheries will establish a framework to promote and actively conserve all the habitats within the Miaboolya system, as described in Section 3 of this document.

Groundwater Flow Through A Constructed Treatment Wetland, Andrew C. Entingh

Theses and Dissertations

This study examines the flow of groundwater through one of the treatment cells. A major goal of the study is to determine whether the system design facilitates uniform vertical flows through the subsurface soil sediments or if preferential flows occur. Conceptually, uniform flows will achieve the most efficient degree of contaminant removal possible by evenly dispersing the groundwater contaminants throughout the full volume of the subsurface media. A three-dimensional grid of piezometers is used to generate potentiometric contour maps, and in-situ tests of hydraulic conductivity facilitate construction of a numerical computer model. The contours of hydraulic head, measured conductivities, and …

Oral Rabies Vaccination: A National Perspective On Program Development And Implementation, Dennis Slate, Richard B. Chipman, Charles E. Rupprecht, Thomas J. Deliberto

United States Department of Agriculture Wildlife Services: Staff Publications

Persistence of unique rabies virus variants in a diverse array of terrestrial carnivores and insectivorous bats makes rabies control in the US. a complex task The public health system in the U.S. is effective in keeping human deaths near zero each year in the face of enzootic wildlife rabies, but the annual cost of coexistence with the disease is high, exceeding $300 million. In addition, each year tens of thousands of people are impacted by anxiety, fear, and trauma associated with potential or actual rabies exposure to themselves and their domestic animals. Exclusion, proper storage and disposal of garbage, and …

Improving Seed Germination Of Salicornia Rubra (Chenopodiaceae) Under Saline Conditions Using Germination-Regulating Chemicals, M. Ajmal Khan, Bilquees Gul, Darrell J. Weber

Western North American Naturalist

Salicornia rubra Nels. (Chenopodiaceae) is a salt-tolerant annual species occurring in salt playas of the Great Basin desert in western United States. It forms pioneer communities on the most saline location of an inland salt playa at Goshen, Utah. Seeds of Salicornia rubra are capable of germinating at 1000 mM NaCl at 25–35 °C alternating temperature regime. Dormancy-regulating chemicals were evaluated for their ability to alleviate the innate and salinityenforced dormancy in seeds of Salicornia rubra. Betaine, GA3, kinetin, fusicoccin, ethephon, thiourea, proline, and nitrate had no effect in alleviating primary dormancy. Increases in NaCl concentration progressively inhibited germination …

Leaf Size, Specific Leaf Area And Microhabitat Distribution Of Chaparral Woody Plants: Contrasting Patterns In Species Level And Community Level Analyses, D. D. Ackerly, Charles A. Knight, S. B. Weiss, K. Barton, K. P. Starmer

Biological Sciences

We examined variation in leaf size and specific leaf area (SLA) in relation to the distribution of 22 chaparral shrub species on small-scale gradients of aspect and elevation. Potential incident solar radiation (insolation) was estimated from a geographic information system to quantify microclimate affinities of these species across north- and south-facing slopes. At the community level, leaf size and SLA both declined with increasing insolation, based on average trait values for the species found in plots along the gradient. However, leaf size and SLA were not significantly correlated across species, suggesting that these two traits are decoupled and associated with …

Redescription Of Hyalella Azteca From Its Type Locality, Vera Cruz, Mexico (Amphipoda : Hyalellidae), E. R. Gonzalez, Les Watling

Marine Sciences Faculty Scholarship

Hyalella azteca is a species complex distributed in North, Central, and northern South America. The identity of the species has always been a problem, especially because the original description by Saussure (1858) from a "cistern" in Vera Cruz, Mexico, is poor, and the figures are not clear. Since then, mention of the type material or specimens from the type locality has not been made by investigators using the name H. azteca. Ecological and genetic information available today suggests that there are several species in the complex commonly referred to as H. azteca. The subtle morphological differences among the populations have …

The Detection Of Bacillus Endospores During Low Heat Skim Milk Powder Processing Using Nucleic Acid Technology, Amy J. Rife, Rafael Jiménez-Flores, Chris Kitts, Mark Kubinski

Dairy Science

Abstract of paper presented at the 2002 Joint Annual Meeting of the American Dairy Science Association & the American Society of Animal Science.

Proposals Submitted In Fiscal Year 2002, Grants Development Office

Grants Development Office Reports

No abstract provided.

Grants And Contracts Awarded In Fiscal Year 2002, Grants Development Office

Grants Development Office Reports

No abstract provided.

Effects Of Management Practices On Grassland Birds: Wilson’S Phalarope, Jill A. Dechant, Douglas H. Johnson, Lawrence D. Igl, Christopher M. Goldade, Amy L. Zimmerman, Betty R. Euliss

Effects of Management Practices on Grassland Birds

Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 4,000 published and unpublished papers. A range map is provided to indicate the relative densities of the species in North America, based on Breeding Bird Survey (BBS) data. Although birds frequently are observed outside the breeding range indicated, the maps are intended to show areas where managers might concentrate their attention. It may be ineffectual to manage habitat at a site for a species that rarely occurs in an area. The species account begins with a brief capsule statement, which …

Effects Of Management Practices On Grassland Birds: Savannah Sparrow, David A. Swanson

Effects of Management Practices on Grassland Birds

Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 4,000 published and unpublished papers. A range map is provided to indicate the relative densities of the species in North America, based on Breeding Bird Survey (BBS) data. Although birds frequently are observed outside the breeding range indicated, the maps are intended to show areas where managers might concentrate their attention. It may be ineffectual to manage habitat at a site for a species that rarely occurs in an area. The species account begins with a brief capsule statement, which …

Effects Of Management Practices On Grassland Birds: Henslow’S Sparrow, James R. Herkert

Effects of Management Practices on Grassland Birds

were summarized from information in more than 4,000 published and unpublished papers. A range map is provided to indicate the relative densities of the species in North America, based on Breeding Bird Survey (BBS) data. Although birds frequently are observed outside the breeding range indicated, the maps are intended to show areas where managers might concentrate their attention. It may be ineffectual to manage habitat at a site for a species that rarely occurs in an area. The species account begins with a brief capsule statement, which provides the fundamental components or keys to management for the species. A section …

Planetary Bioresources And Astroecology 1. Planetary Microcosm Bioassays Of Martian And Carbonaceous Chondrite Materials: Nutrients, Electrolyte Solutions, And Algal And Plant Responses, Michael Noah Mautner

Chemistry Publications

The biological fertilities of planetary materials can be assessed using microcosms based on materials in martian and carbonaceous chondrite meteorites. Their biological fertilities are rated based on soluble electrolyte nutrients, on the growth of mesophile and cold-tolerant algae, and of plant tissue cultures. The Murchison CM2 carbonaceous chondrite meteorite and DaG 476 martian shergottite contain high levels of water-extractable Ca, Mg, and SO4–S. The martian meteorites DaG 476 and EETA 79001 also contain high levels of extractable nutrients NO3–N (0.013–0.017 g kg⁻¹) and PO4–P (0.019–0.046 g kg⁻¹). The yields of most of the water-extractable …

Contract And Grant Awards Fiscal Year 2002, Office Of The Vice President For Research

Office of the Vice President for Research

Message From the Vice Provost for Research I invite you to read this report Contract and Grant Awards FY 2002, which lists contract and grant (C&G) awards received by the University of New Mexico (UNM) during the period from July 1, 2001 - June 30, 2002. These awards represent new funds that were acquired during FY02 by the main campus, branch campuses and education centers, and the Health Sciences Center (HSC). The HSC includes the School of Medicine, College of Nursing and College of Pharmacy. The awards received for FY02 total $247.6M, of which $140.8M is attributed to the main …

Mammals Of The Grand Staircase-Escalante National Monument: A Literature And Museum Survey, Jerran T. Flinders, Duke S. Rogers, Jackee L. Webber-Alston, Harry A. Barber

United States Bureau of Land Management: Staff Publications

This is the first treatment of the mammals of the Grand Staircase-Escalante National Monument (GSENM). GSENM was established in 1996 as a 1.7-million-acre (680,000-ha) federal land reserve under the jurisdiction of the Bureau of Land Management (BLM). To successfully manage this new monument, the BLM is presently developing a management action plan. To provide information for the proper management of mammal species of the area, we have reviewed background literature for each mammal potentially found within the Monument boundaries. We propose that a core area, surrounded by a buffer matrix, be used in GSENM and surrounding public lands to preserve …

Peaks Island Neighborhood : Meetings, Jan-Apr 2002., Peaks Island Neighborhood Association

General Reports

Proceedings of meetings from Jan-Apr 2002, Peaks Island Neighborhood Association, pertaining to creation of a Neighborhood Plan.

Environmental Audit Of The Rose Hill Campus, Nicole Marshall, Maria Nissi, Brian Flaherty, Carl Van Ostrand, Ian Mcclelland

Student Theses 2001-2013

-

School Of Marine Science Graduate Catalog 2002-2003, College Of William And Mary, School Of Marine Science

Miscellaneous

Catalog for the Graduate program from the School of Marine Science at the College of William and Mary for the listed academic year