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Articles 36451 - 36480 of 42809
Full-Text Articles in Entire DC Network
Cache County Water Demand/Supply Model, Trevor C. Hughes, Gregory J. Norby, Laxman Thyagarajan
Cache County Water Demand/Supply Model, Trevor C. Hughes, Gregory J. Norby, Laxman Thyagarajan
Reports
This report descibes a municipal water demand forecasting model for use in areas of mixed rural and urban housing types. A series of residential demand functions were derived which forecast water demand based on the ype and density of housing and season. Micro sampling techniques were used to correlate water use data and explanatory variable data for low, medium, and high density housing. The demand functions were incorporated into a geographic information system (GIS) platform cosisting of a desk-top mapping program, MapInfo, coupled with a user interface program written in Visual Basic. The GIS-based model analyzes water demand at the …
Environmental Assessment Amendment To Grand Mesa National Forest Travel Management Plan Revision 100 Mile Proposal, United States Forest Service
Environmental Assessment Amendment To Grand Mesa National Forest Travel Management Plan Revision 100 Mile Proposal, United States Forest Service
All U.S. Government Documents (Utah Regional Depository)
The purpose of this Environmental Assessment (EA) is to describe the environmental effects of a proposal to evaluate reopening approximately 100 miles of the 299 miles of nonsystem routes which were closed to motorized use by the Decision Notice on the Grand Mesa National Forest Travel Management Plan Revision dated December 12, 1994.
Environmental Assessment For 36 Livestock Grazing Allotments On The Shoshone National Forest, United States Forest Service
Environmental Assessment For 36 Livestock Grazing Allotments On The Shoshone National Forest, United States Forest Service
All U.S. Government Documents (Utah Regional Depository)
The Shoshone National Forest proposes to issue Term Grazing Permits that will authorize the grazing of livestock on 36 grazing allotments located within the Forest. Permits will be issued for a period of up to 10 years. Part 3 (Special Terms and Conditions) of each permit would contain site specific livestock and rangeland management requirements designed to mitigate existing resource conflicts and implement Forest Plan standards and guidelines specific to each allotment.
Current Status Of The Plains Pocket Mouse, Perognathus Flavescens, In Iowa, Gregory M. Wilson, John B. Bowles, Justin W. Van Zee
Current Status Of The Plains Pocket Mouse, Perognathus Flavescens, In Iowa, Gregory M. Wilson, John B. Bowles, Justin W. Van Zee
Journal of the Iowa Academy of Science: JIAS
Published and unpublished accounts of the plains pocket mouse (Perognathus flavescens) were utilized to document the existence of extant populations and to summarize and report additional data about the biology of this state endangered Iowa species. Populations of P. flavescens exist in western (Harrison, Monona, and Plymouth counties) and extreme eastern (adjacent portions of Louisa and Muscatine counties) Iowa, the latter of which represents the eastern-most record for the species in North America. In addition, we document a new locality for P. flavescens from the interior of the state (Benton County). All known populations of P. flavescens in Iowa occur …
Book Review - The Unnatural Nature Of Science: Why Science Does Not Make (Common) Sense, David Lopatto
Book Review - The Unnatural Nature Of Science: Why Science Does Not Make (Common) Sense, David Lopatto
Journal of the Iowa Academy of Science: JIAS
A distinguished psychologist once wrote that if you wished to understand the history of scientific thought you need a psychologist at your elbow. Lewis Wolpert, Professor of Biology at University College in London, has taken that sentiment further. It seems that if you wish to understand the difference between scientific and nonscientific thinking you should delve deeply into the literature of cognitive psychology. For natural thinking, "ordinary, day-to-day common sense will never give an understanding about the nature of science." Instead, the trained scientist engages in unnatural (i.e., counterintuitive) thinking about a word that defies ordinary experience. In order to …
Index For Volume 103
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Nature Among The Mormons: An Ecocritical Approach To Mormon Literature, Gail D. Ballard
Nature Among The Mormons: An Ecocritical Approach To Mormon Literature, Gail D. Ballard
Theses and Dissertations
Increasingly, environmentalists have focused on Judeo-Christian tradition as the cause of Western culture's ecological crisis. It is the purpose of this paper to examine the charges against Judeo-Christian tradition and to show how the revealed doctrines of The Church of Jesus Christ of Latter-day Saints provide possible solutions to environmental challenges. The resulting Latter-day Saint environmental paradigm will be superimposed on selected Mormon literature to determine how effectively the doctrines taught by Church authorities filtered into popular Mormon culture.
Despite the inspired teachings of Latter-day Saint prophets, Mormons remain unimpressive in their environmental practices. My research will show that while …
Task Iii Report: Water Use Estimation And Forecasting For The Kentucky River Basin, Glenn C. Blomquist, William Hoyt, D. Hu, C. Scott
Task Iii Report: Water Use Estimation And Forecasting For The Kentucky River Basin, Glenn C. Blomquist, William Hoyt, D. Hu, C. Scott
KWRRI Research Reports
We estimate aggregate monthly water use for summer, peak demand and nonsummer off-peak demand periods for the Kentucky River Basin. Using Kentucky Division of Water use data, U.S. Census data for county demographic and economic conditions, and U.S. Weather Service data for weather conditions we estimate use for the 1970-1993 period. Our model allows for idiosyncratic effects of each of the 27 counties in the sample. We find factors such as population and manufacturing employment affect use and temperature and rainfall in current and preceding months effect use during the summer, peak period. The model predicts well within the sample …
The Probe, Issue 162 – January/February 1996
The Probe, Issue 162 – January/February 1996
The Probe: Newsletter of the National Animal Damage Control Association
Trapping Weasels-- James E. Forbes, Past President
From the Incoming President-- Eugene A. LeBoeuf
NADCA Membership Directory
• Draft NADCA Position Statements on Wildlife Reintroduction Aquaculture Regulated Hunting Trapping Wildflife Damage Management
NADCA Committees
Performance Of Vegetative Filter Strips With Varying Pollutant Source And Filter Strip Lengths, Puneet Srivastava, Dwayne R. Edwards, Tommy C. Daniel, Philip A. Moore Jr., Thomas A. Costello
Performance Of Vegetative Filter Strips With Varying Pollutant Source And Filter Strip Lengths, Puneet Srivastava, Dwayne R. Edwards, Tommy C. Daniel, Philip A. Moore Jr., Thomas A. Costello
Biosystems and Agricultural Engineering Faculty Publications
Vegetative filter strips (VFS) can reduce runoff losses of pollutants such as nitrogen (N) and phosphorus (P) from land areas treated with fertilizers. While VFS effectiveness is considered to depend on lengths of pollutant source and VFS areas, there is little experimental evidence of this dependence, particularly when the pollutant source is manure-treated pasture. This study assessed the effects of pollutant source area (fescue pasture treated with poultry litter) length and VFS (fescue pasture) length on VFS removal of nitrate N (NO3-N), ammonia N (NH3-N), total Kjeldahl N (TKN), ortho-P (PO4-P), total P (TP), …
Book Review - This Fragile Land. A Natural History Of The Nebraska Sandhills, Neil P. Bernstein
Book Review - This Fragile Land. A Natural History Of The Nebraska Sandhills, Neil P. Bernstein
Journal of the Iowa Academy of Science: JIAS
Paul Johnsguard presents a highly enjoyable and readable introduction to the natural history of the Nebraska Sandhills in his "kind of love letter to the Nebraska Sandhills and especially to their inhabitants past and present." Johnsguard calls upon 30 years of research and teaching in the region to draw together a series of essays that cover geology, ecology, ethology, and environmental issues while offering his personal perspectives on the past, present and future.
Checklist Of Instructions For Authors
Checklist Of Instructions For Authors
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Editorial Board & Iowa Academy Of Science Officers And Directors
Editorial Board & Iowa Academy Of Science Officers And Directors
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Improving Dairy Farm Performance, Ruth Dilley
Improving Dairy Farm Performance, Ruth Dilley
Journal of the Department of Agriculture, Western Australia, Series 4
Western Austraian sairy farmers produce more milk per cow and per farm than their eastern Sttates counterparts and the milk is also of higher quality. But there is always room for improvement and as grain prices rise it is crucial that maximum benefit is derived from the cheapest feed source - the pasture.With this in mind Ruth Dilley looks at the Dairy Farm Performance Program - a comprihensive farm database developed by Agriculture Western Australia.
Bald Eagles Wintering Along The Des Moines River, Iowa, Neil Sabine
Bald Eagles Wintering Along The Des Moines River, Iowa, Neil Sabine
Journal of the Iowa Academy of Science: JIAS
Distribution, habitat use, and foraging behavior of Bald Eagles (Haliaeetus leucocephalus) wintering in southeast Iowa were studied in January - March 1990 and November 1990 - March 1991. Eagles were seen from November through March with the highest numbers in January and February. Adults had shorter winter residence times than immatures and they appeared to be less active during the day. Eagles concentrated their foraging efforts along certain river segments where they fed exclusively on fish. Timber harvesting along the river reduced eagle use and is considered to be the most serious threat to sustaining eagle use of the area. …
Life History And Status Classifications Of Birds Breeding In Iowa, Louis B. Best, Kathryn E. Freemark, Barbara S. Steiner, Timothy M. Bergin
Life History And Status Classifications Of Birds Breeding In Iowa, Louis B. Best, Kathryn E. Freemark, Barbara S. Steiner, Timothy M. Bergin
Journal of the Iowa Academy of Science: JIAS
Life history and status classifications were compiled for 145 bird species that breed in Iowa. Species were classified by food type and substrate, nest substrate, susceptibility to cowbird parasitism, migratory status, predominant habitat use and habitat-use specialization, body mass (an index of home range/territory size), area sensitivity, population trend and vulnerability, and beneficial/harmful aspects in relation to agriculture. Such information may be used to make interspecific comparisons, evaluate interrelationships among life history and status characteristics, and provide insights into the interpretation of previous research. This synthesis also can aid those responsible for making conservation and management decisions about Iowa's avifauna.
Editorial Board & Iowa Academy Of Science Officers And Directors
Editorial Board & Iowa Academy Of Science Officers And Directors
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
The Natural History Of Aconitum Noveboracense Gray (Northern Monkshood), A Federally Threatened Species, Margaret A. Kuchenreuther
The Natural History Of Aconitum Noveboracense Gray (Northern Monkshood), A Federally Threatened Species, Margaret A. Kuchenreuther
Journal of the Iowa Academy of Science: JIAS
Aconitum noveboracense Gray (Ranunculaceae), commonly known as northern monkshood, is a federally threatened herbaceous perennial that occurs in disjunct populations in Iowa, Wisconsin, Ohio and New York. It appears to be a glacial relict, existing today only in unique areas with cool, moist microenvironments, such as algific talus slopes. Field studies reveal that A. noveboracense has a complex life history. Perennation of individual plants occurs through the annual production of daughter tubers. Vegetative reproduction is commonly observed, and can occur by means of aerial and subterranean bulbils, as well as by development of adventitious root buds. Populations also reproduce sexually …
Iowa Academy Of Science 108th Annual Meeting [1996]: Advance Program, Iowa Academy Of Science
Iowa Academy Of Science 108th Annual Meeting [1996]: Advance Program, Iowa Academy Of Science
Iowa Academy of Science Documents
Contains information about the schedule and presentations for the 1996 annual meeting of the Iowa Academy of Science.
Captive Environmental Influences On Behavior In Zoo Drills And Mandrills (Mandrillus), A Threatened Genus Of Primate, Erik Terdal
Captive Environmental Influences On Behavior In Zoo Drills And Mandrills (Mandrillus), A Threatened Genus Of Primate, Erik Terdal
Dissertations and Theses
Drills (Mandrillus leucophaeus) are an endangered species of African monkey (Cercopithecidae), and their sole congener the mandrill (Mandrillus sphinx) is vulnerable to extinction. Both species are threatened in the wild by deforestation and hunting.
Drills have a poor record of captive reproduction. Many individuals appear to have behavioral deficiencies which interfere with reproduction. Thus, the zoo population of drills does not serve as a “hedge” against the species’ total extinction: drills are endangered in captivity as well as in the wild. Mandrills, by contrast, reproduce well in captivity. Information on the behavior of mandrills in captivity may help zoo managers …
The Coyotes Of The Whittier Hills: Dietary Analysis, Jennifer Mcbride
The Coyotes Of The Whittier Hills: Dietary Analysis, Jennifer Mcbride
Whittier Scholars Program
The goal of this study was to examine the ecological role of coyotes in the Whittier Hills through dietary analyses and field observations. The Whittier Hills were selected because of the urban environment and very disturbed habitat, thus providing interesting information on the urban coyote and concerns over household pets thought to be lost by coyotes….the current study is attempting to identify any shifts in diet over the year, and relate this to previous studies. This study is also examining the role of domestic animals in the coyote diet and the extent to which the coyotes utilize domestic animals. Thus, …
Infiltration Of Fecal Bacteria Through Soils: Timing And Tillage Effects, Mark S. Coyne, C. S. Stoddard, John H. Grove, William O. Thom
Infiltration Of Fecal Bacteria Through Soils: Timing And Tillage Effects, Mark S. Coyne, C. S. Stoddard, John H. Grove, William O. Thom
Soil Science News and Views
Land-applying animal wastes potentially exposes humans and animals to fecal pathogens, either by direct contact with soil and produce, or via ground water contamination. Some of these organisms are Salmonella, certain pathogenic Escherichia coli strains, protozoa such as Cryptosporidium and Giardia, and enteric viruses. Whether soil adequately filters these pathogens before they reach ground water depends on the interaction of porosity, texture, depth, water content, rainfall intensity and duration, and soil management.
Fish Lateral Line Neurophysiological And Neurobehavioral Responses As A Sensitive Water Quality Monitoring System, Hong Y. Yan
Fish Lateral Line Neurophysiological And Neurobehavioral Responses As A Sensitive Water Quality Monitoring System, Hong Y. Yan
KWRRI Research Reports
Cadmium is a heavy metal ion that can cause deleterious effects on aquatic animals. This study uses both electrophysiological recordings from lateral line nerves and videotaping of schooling behavior to investigate the effects of cadmium exposure on fish. The fathead minnows were exposed to cadmium at a concentration of 450 μg/1 over a 24-hr period. Extracellular recording with a silver hook electrode was used to record compound action potentials from the lateral lines of control and experimental fish. After a short time exposure (24 hr) to cadmium ions, all of the electrophysiological activities of the lateral line nerves were suppressed. …
A Recent Colonization Of Dolichopoda Cave Crickets In The Poscola Cave (Orthoptera, Rhaphidophoridae), Camilla Bernardini, Claudio Di Russo, Mauro Rampini, Donatella Cersaroni, Valerio Sbordoni
A Recent Colonization Of Dolichopoda Cave Crickets In The Poscola Cave (Orthoptera, Rhaphidophoridae), Camilla Bernardini, Claudio Di Russo, Mauro Rampini, Donatella Cersaroni, Valerio Sbordoni
International Journal of Speleology
We report a series of investigations carried out on a Dolichopoda population recently discovered in the Poscola cave and in some small caves nearby (Lessini Mountains, Vicenza). This population is located north of Po river, outside the present known geographic range of this genus in Italy. Morphology of the epiphallus corroborated by chromosome and allozyme analysis indicated that this population belongs to D. laetitiae. Study of the genetic structure of population in the Poscola area revealed high gene flow levels between Poscola and the other minor caves, suggesting the occurrence of a single expanding population. This finding as well …
Describing The Elephant: Multiple Perspectives In New York City's Watershed Protection Conflict, Krystyna Anne Stave
Describing The Elephant: Multiple Perspectives In New York City's Watershed Protection Conflict, Krystyna Anne Stave
Public Policy and Leadership Faculty Research
New York City's efforts to avoid filtration mandated by the 1986 Safe Drinking Water Act Amendments and the 1989 Surface Water Treatment Rule have generated considerable controversy. Since the conflict began in 1990, a spectrum of stakeholder groups has emerged, representing land owners, sport fishermen, businesses, environmental groups, developers, and watershed communities. What was originally defined by New York City water supply managers as a scientific problem--identifying sources of water quality degradation and preventing contaminants from entering the water supply system--now has broadened to include a diverse set of social and economic issues as well.
Synthetic Organic Compounds: Las Vegas Wash And Lake Mead, National Water Quality Assessment Program (Nawqa): Nevada Basin And Range
Synthetic Organic Compounds: Las Vegas Wash And Lake Mead, National Water Quality Assessment Program (Nawqa): Nevada Basin And Range
Publications (WR)
The Nevada Basin and Range (NVBR) study unit of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program is investigating the status of, trends in, and factors affecting water quality in the Las Vegas area. A principal objective of the investigation is to assess the effects of urbanization on the quality of area water resources. Las Vegas Wash is the surface-water outlet for the Las Vegas area. The wash transports stormwater runoff, shallow ground-water discharge, and tertiary-treated sewage effluent from the Las Vegas area to Las Vegas Bay of Lake Mead on the Colorado River. Most of the flow—about 96 …
Phosphorous Limitation And Trophic Status In Limestone Quarry Lakes, Dade County, Fl, Isaac Peter Chase
Phosphorous Limitation And Trophic Status In Limestone Quarry Lakes, Dade County, Fl, Isaac Peter Chase
HCNSO Student Theses and Dissertations
While limestone quarry lakes have existed in South Florida for many years, only recently have they received serious scrutiny. A thorough understanding of the trophic dynamics of these lakes has yet to be achieved. Questions have arisen as to the value of these lakes for such purposes as water reclamation, conservation, and recreational use. The purpose of this study was twofold, 1) to investigate the trophic processes within these lakes with special regard to phosphorus limitation, and 2) to help provide a better understanding of the linmology of these lakes, specifically through the quantification and identification of the invertebrate life …
An Interdisciplinary Water Quality Curriculum For Middle School Students, Barbara Michelle Cleveland
An Interdisciplinary Water Quality Curriculum For Middle School Students, Barbara Michelle Cleveland
All Graduate Projects
An interdisciplinary curriculum correlating water quality with the disciplines of physical science and mathematics for 6th grade middle school students was developed. Literature examined indicates that the opportunity to explore key concepts and significant issues using an integrated approach provided greater opportunity to formulate meaningful connections between disciplines studied and that achievement was enhanced. The Learning units were developed for use at Wilson Middle School in Yakima, Washington.
A Guide For Extending Nature Lessons At The Yakima Arboretum, Marilou Cori Kinder
A Guide For Extending Nature Lessons At The Yakima Arboretum, Marilou Cori Kinder
All Graduate Projects
The importance of providing a hands on natural environment curriculum was examined. Sources from 1938-1996 were found supporting the importance of such a curriculum. A search was conducted on the availability of a natural habitat curriculum that used a local resource. The search discovered the Yakima Arboretum had seven areas of interest along with a packet of brief lesson suggestions. These lessons were extended to include classroom activities that would provide students with background knowledge prior to a field trip to the Arboretum.
Summer 1996, Nsu Oceanographic Center