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Articles 38371 - 38400 of 42706
Full-Text Articles in Entire DC Network
Species Richness Gradients Of Oak Forest Plants Along The Missouri River In Nebraska And Iowa, Steven B. Rolfsmeier
Species Richness Gradients Of Oak Forest Plants Along The Missouri River In Nebraska And Iowa, Steven B. Rolfsmeier
Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts
The upland deciduous forests of the Missouri River valley contain many plants typical of forests to the east of this area, which are assumed to have migrated northward and westward along the river in postglacial times. Previous workers have reported a gradient of decreasing species richness upstream among woody species, which is suggested to be the result of climatic gradients and differential dispersal capabilities of the immigrant species. Floristic work on all vascular species in eight woodland sites along the Nebraska-Iowa border quantifies the presence of similar gradients for herbaceous species, but of differing degrees. These studies also reveal the …
Frequency-Dependent Seed Dispersal By Ants Of Two Deciduous Forest Herbs, Brent H. Smith, Catherine E. De Rivera, Cara Lin Bridgman, John J. Woid
Frequency-Dependent Seed Dispersal By Ants Of Two Deciduous Forest Herbs, Brent H. Smith, Catherine E. De Rivera, Cara Lin Bridgman, John J. Woid
Environmental Science and Management Faculty Publications and Presentations
Two co—occurring deciduous forest myrmecochores, Asarum canadense and Jeffersonia diphylla, release their seeds at approximately the same time, and therefore potentially compete for ants as dispersers. Within a single woodlot, we placed seeds of both species inside a dense Jeffersonia population away from Asarum plants, inside a dense Asarum population away from Jeffersonia plants, and in a site where plants of neither species occurred. No preference was exhibited by ants where natural populations were absent. Preference at the other two sites was frequency dependent: ants preferred seeds of the introduced species. Species preferred by ants have higher seed and …
Health Effects Of Air Pollutants (Sulfur Dioxide, Ozone, And Carbon Monoxide), Robert A. Bethel
Health Effects Of Air Pollutants (Sulfur Dioxide, Ozone, And Carbon Monoxide), Robert A. Bethel
Air Quality Protection in the West (November 27-28)
19 pages (includes illustrations).
Contains references.
Motor Vehicle Air Pollution Control: The Remaining Issues, Michael P. Walsh
Motor Vehicle Air Pollution Control: The Remaining Issues, Michael P. Walsh
Air Quality Protection in the West (November 27-28)
26 pages (includes illustrations).
Contains references.
Ua66/3/2 Computer Science Alumni Newsletter, Vol. 5, Wku Computer Science
Ua66/3/2 Computer Science Alumni Newsletter, Vol. 5, Wku Computer Science
WKU Administration Documents
Newsletter created by WKU Computer Science for the alumni of the program.
The Probe, Issue 97 - November 1989
The Probe, Issue 97 - November 1989
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE National Animal Damage Control Association
NOVEMBER 1989
APHIS Activity Report
Letters to Ye Ed
Animal Rights
The Humane Society
Personnel
Freeze Dirt
Coyotes are Dangerous
Water Resources Review - November 1989, Annis Water Resources Institute
Water Resources Review - November 1989, Annis Water Resources Institute
AWRI Reviews
No abstract provided.
Lapita Fishing Strategies: A Review Of The Archaeological And Linguistic Evidence, Richard Walter
Lapita Fishing Strategies: A Review Of The Archaeological And Linguistic Evidence, Richard Walter
Pacific Studies
No abstract provided.
Herring Gulls, Larus Argentatus, Nesting On Sandusky Bay, Lake Erie, 1989, Richard A. Dolbeer, P.P. Woronecki, T. W. Seamans, B. N. Buckingham, E. C. Cleary
Herring Gulls, Larus Argentatus, Nesting On Sandusky Bay, Lake Erie, 1989, Richard A. Dolbeer, P.P. Woronecki, T. W. Seamans, B. N. Buckingham, E. C. Cleary
United States Department of Agriculture Wildlife Services: Staff Publications
One of the largest herring gull (Larus argentatus} nesting populations on the Great Lakes is located in an urban setting on Sandusky Bay in the Ohio portion of Lake Erie. The survey reported here, carried out in 1989, indicated a population of 4,250 nests. The population has expanded from a focal point on Turning Point Island to coal piles at the Lower Lake Dock Company, rooftops in downtown Sandusky and breakwalls near Cedar Point. Comparison with data from a survey performed in 1976 indicates the population has grown at an average annual rate of 11.9% during the past 13 years. …
The National Environmental Policy Act: No Longer A Teenager, But Not Yet Grown-Up, George W. (Rock) Pring
The National Environmental Policy Act: No Longer A Teenager, But Not Yet Grown-Up, George W. (Rock) Pring
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
98 pages.
Contains footnotes.
Legislative Control Of Air Pollution & Water Pollution Of The P.R. China, Longan Xiao
Legislative Control Of Air Pollution & Water Pollution Of The P.R. China, Longan Xiao
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
10 pages.
The Law Of Natural Conservation In China, Xiang-Cong Ma
The Law Of Natural Conservation In China, Xiang-Cong Ma
New Challenges for Environmental Protection: Second Sino-American Conference on Environmental Law (October 12-13)
19 pages.
Fisheries Report No 82 - Effects Of Fish Trapping On The Shark Bay Snapper Fishery, M. J. Moran, J. Jenke
Fisheries Report No 82 - Effects Of Fish Trapping On The Shark Bay Snapper Fishery, M. J. Moran, J. Jenke
Fisheries Research Reports
Traps have been a controversial method of catching pink snapper Chrysophrys auratus (Sparidae) around Shark Bay, Western Australia, since 1959. The history of the issue and the relevant regulations are reviewed; and results of investigations into specific concerns about trap fishing are reported. Concerns of ghost-fishing by lost traps have been largely allayed by underwater TV film of snapper escaping from a standard snapper trap.
A major concern was that traps might physically damage the benthic fauna, e.g. corals. A TV survey showed that while fragile hard corals are abundant in shallower water nearby, the deeper snapper grounds themselves are …
The Probe, Issue 96 - October 1989
The Probe, Issue 96 - October 1989
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE National Animal Damage Control Association
OCTOBER 1989
NADCA Executive Board Meeting
4th Eastern Wildlife Damage Control Conference
Membership
Letters to Ye Ed
Animal Rights
Lyme Disease
Personel
APHIS Activity Report
The Rocky Mountain Humane Society
Eagles to be Poison-test Guinea Pigs
NADCA Survey
Lithofacies Of The Pliocene Yorktown Formation In The Vicinity Of Kingsmill On The James River, Virginia, Michael David Lawless
Lithofacies Of The Pliocene Yorktown Formation In The Vicinity Of Kingsmill On The James River, Virginia, Michael David Lawless
OES Theses and Dissertations
The Yorktown Formation beds which crop out along the James River in southeastern Virginia near Kingsmill and Carter's Grove are lithologically described in order to compare them with the "typical" Yorktown beds upriver in the area of Fort Boykins, Rushmere, and Cobham Wharf. Thirty-four stratigraphic sections are constructed of the bluffs along the river. The Yorktown beds in the area of Kingsmill and Cobham Wharf are divided into ten lithofacies: the silty sand facies (B), the Chesapecten facies (C), the Glycymeris facies (D), the Chama facies (E), the glauconitic biofragmental sand facies (F), the laminated silty clay facies (G), the …
Study Of Acetone Extractable Organic Matter From Airborne Particulate Matter From An Urban Site, Wenhui Wu
Study Of Acetone Extractable Organic Matter From Airborne Particulate Matter From An Urban Site, Wenhui Wu
Theses
Two seasonal periods (Winter 1988; Summer 1988) of daily Newark urban air samples were collected on glass fiber filters. Each filter was first extracted with dichloromethane and subsequently with acetone. Quarterly composites of each were then tested for mutagenicity. The results of the analysis of the less polar dichloromethane extracts were reported in the thesis of Junghen Lwo. A modified fractionation scheme involving acid-base partitioning and silica gel column chromatography has been used as the first step in the bioassay-directed search for significant levels of mutagenic compounds in extracts of inhalable (IP 10) ambient air particulates. The biologically "hot" fractions …
An Investigation Of Animal Damage Associated With Maple Syrup Production, J. Alan May, Dennis Slate
An Investigation Of Animal Damage Associated With Maple Syrup Production, J. Alan May, Dennis Slate
Wildlife Damage Management Conference
An increase in the use of plastic tubing systems to collect sap from sugar maples (Acer saccharum) has allowed syrup producers to boost production in recent years, but not without cost. Rodents gnawing on tubing, spouts, and fittings may cause damage in excess of $300,000 annually in Vermont, the largest maple producing state. Red squirrels (Tamiasciurus hudsonicus), gray squirrels (Sciurus carolinensis), and chipmunks (Tamias striatus) appear to be responsible for the majority of damage. Other species including flying squirrels (Glaucomvs sabrinus), white-footed mice (Peromvscus leucopus), porcupines (Erethizon …
Farmer Attitudes Toward Wild Turkeys In Southwestern Wisconsin, Scott R. Craven
Farmer Attitudes Toward Wild Turkeys In Southwestern Wisconsin, Scott R. Craven
Wildlife Damage Management Conference
The reintroduction of the Wild Turkey (Meleagris gallopavo) represents one of the great success stories for Wisconsin wildlife management. Human settlement, habitat loss, and perhaps disease, combined to eliminate once-common turkeys from Wisconsin by 1900. Periodic attempts to restore a viable turkey population were unsuccessful with the exception of a small flock at Meadow Valley-Necedah in central Wisconsin. However in 1976, the Wisconsin Department of Natural Resources (WDNR) began a new, well conceived cooperative project with the Missouri Department of Conservation. Under the agreement, Missouri received 3 wild Wisconsin ruffed grouse (Bonasa umbellus) in exchange for …
Population Dynamics And Management Of Deer In Wisconsin, Keith R. Mccaffery
Population Dynamics And Management Of Deer In Wisconsin, Keith R. Mccaffery
Wildlife Damage Management Conference
Management of deer in Wisconsin is affected by a combination of biological and environmental factors. In the Northern Forest, winter severity dramatically affects annual survival and recruitment. However, deer density goals here are above "I" carrying capacity. Thus, minor errors in harvest management are in part compensated by herd responses. Deer in the farmland areas of the state are maintained at goals that for the most part are below "I" carrying capacity. Errors in harvest management are magnified in farmland because herd responses are not compensatory. Therefore, the harvest quotas for antlerless deer must be more precise in our farmland …
Black Bear Damage In Virginia, Michael R. Vaughan, Patrick F. Scanlon, Sue Evelyn P. Mersmann, Dennis D. Martin
Black Bear Damage In Virginia, Michael R. Vaughan, Patrick F. Scanlon, Sue Evelyn P. Mersmann, Dennis D. Martin
Wildlife Damage Management Conference
We examined records of black bear damage in Virginia on Shenandoah National Park, (SNP) (1979-1988) and non-Park lands (1973-1988). Mean annual damage was $5,470 on non-Park lands and $1,217 on the Park. Corn and beehives accounted for 79 percent and personal property for 72 percent of the economic loss on non-Park and Park lands respectively. Young males were responsible for most damage on non-Park lands while adults of both sexes caused most damage on SNP. Over 70 percent of bear damage incidents in the state occurred either on the Park or on land immediately adjacent to the Park. Moving bears …
Farmland Habitat Use By Wild Turkeys In Wisconsin, R. G. Wright, R. N. Paisley, J. F. Kubisiak
Farmland Habitat Use By Wild Turkeys In Wisconsin, R. G. Wright, R. N. Paisley, J. F. Kubisiak
Wildlife Damage Management Conference
Habitat use and food habits of wild turkeys (Meleagris gallopavo) were studied during summer 1988-89 in southwestern Wisconsin in order to address growing concerns that turkeys cause considerable crop damage. Intensive telemetric monitoring in 1988 suggested that turkeys used crop fields (corn-alfalfa-oats) at a low rate compared to forest types. Brooded hens used forest habitats less and field habitats more than broodless hens and gobblers. Brooded hens appeared to use forest and crop field habitats less and non-crop fields (pasture and idle) more than expected. Broodless hens and gobblers appeared to use forest types and non-crop fields more …
Controlling Roosting Starlings In Industrial Facilities By Baiting, Bernice U. Constantin, James F. Glahn
Controlling Roosting Starlings In Industrial Facilities By Baiting, Bernice U. Constantin, James F. Glahn
Wildlife Damage Management Conference
During the winters of 1987-88 and 1988-89 a study was conducted to evaluate the potential of DRC-1339 baiting for controlling roosting European Starlings (Sturnus vulgarus) at Tennessee Eastman Company's chemical manufacturing plant in Kingsport, Tennessee. In 1987-88 Starlicide CompleteR (1% DRC-1339 treated poultry pellets diluted 1:9 with untreated poultry pellets) was used in preroosting congregating areas adjacent to the roost. In 1988-89 Starlicide CompleteR and DRC-1339 treated bread were used in bait containers placed in the roosting structure. Although 90 lbs of Starlicide CompleteR was consumed during 1987-88, bait consumption was sporadic and no appreciable change in the …
Florida's Nuisance Alligator Control Program, Michael L. Jennings, Allan R. Woodward, Dennis N. David
Florida's Nuisance Alligator Control Program, Michael L. Jennings, Allan R. Woodward, Dennis N. David
Wildlife Damage Management Conference
The recovery of alligators from centuries of exploitation, coupled with a burgeoning human population in Florida has resulted in an increasing number of problem animals and alligator attacks. In response to this problem, the Florida Game and Fresh Water Fish Commission implemented a nuisance alligator control program in 1978. A mean of 2513 nuisance alligators per year was harvested during the period 1978 to 1988. The number of alligator complaints, nuisance alligators harvested, and alligator attacks increased significantly over the period (P=0.0003, P=0.0001, and P=0.04). The value of alligator meat remained stable at about $5.00/pound over the same period, while …
Economic Impact And Control Of Wading Birds At Arkanas Minnow Ponds, Michael D. Hoy, Jeffery W. Jones, Albert E. Bivings
Economic Impact And Control Of Wading Birds At Arkanas Minnow Ponds, Michael D. Hoy, Jeffery W. Jones, Albert E. Bivings
Wildlife Damage Management Conference
Esophageal/stomach contents of 172 little blue herons (Egretta caerulea), great egrets (Casmerodius albus), snowy egrets (Egretta thula), and great blue herons (Ardea herodias) were analyzed to estimate their consumption of golden shiners. Mean and maximum number of golden shiners consumed/bird, as well as the mean total length of golden shiners consumed by each wading bird species was determined. Loss estimates varied by wading bird species and ranged from $0.10 - $1.12/bird/feeding. Loss estimates reflect the severity of problems with wading birds on minnow ponds and the need to reduce losses by use …
An Automatic Trigger For Bird Frightening Devices, Steve Price, John Adams
An Automatic Trigger For Bird Frightening Devices, Steve Price, John Adams
Wildlife Damage Management Conference
This triggering unit for animal frightening devices was developed because of an expressed need for a more effective method of breaking up starling and grackle roosts. The USDA, Animal Damage Control (ADC) office in Louisville, KY suggested that a device which detected the presence of the birds before activating and then emitted different sounds would be much more effective than single functioning devices on timers. Existing frightening devices have limited effectiveness because the birds become accustom to the repeated and periodic actuations of the same thing over and over again. In November of 1986, Mr. Bernice Constantin, District Supervisor for …
The Usda-Aphis-Adc Program In The United States, Bobby R. Acord
The Usda-Aphis-Adc Program In The United States, Bobby R. Acord
Wildlife Damage Management Conference
The ADC program was transferred to the U.S. Department of Agriculture, Animal and Plant Health Inspection Service in 1986. Shortly after the transfer, the Secretary of Agriculture established the National Animal Damage Control Advisory Committee (NADCAC). Current and future issues facing ADC are discussed in the context of NADCAC recommendations.
Epa Update On Vertebrate Pesticides, William W. Jacobs
Epa Update On Vertebrate Pesticides, William W. Jacobs
Wildlife Damage Management Conference
The U.S. Environmental Protection Agency regulates pesticides under the authority of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). Vertebrate pesticides are subsumed under the heading "rodenticides" and, under FIFRA, are regulated similarly to other pesticides.
Effects Of Free-Ranging Cats On Wildlife: A Progress Report, J.S. Coleman, S.A. Temple
Effects Of Free-Ranging Cats On Wildlife: A Progress Report, J.S. Coleman, S.A. Temple
Eastern Wildlife Damage Control Conference: 4th (1989)
We have embarked upon a three-year study to determine the density and distribution of free-ranging cats (Felis catus) and their effects on prey populations in rural Wisconsin. The effects of predation by free-ranging cats on wildlife populations are potentially great and have not been adequately accounted for in wildlife management programs. In rural Illinois there was an average of 5.6 free-ranging cats per farm (Warner 1985). If densities elsewhere are similar, then a state such as Wisconsin, with over 200,000 active and retired farms, could have over 1 million free-ranging cats on farms. In other studies (Bradt 1949, …
Beaver And Beaver Dam Removal In Wisconsin Trout Streams, Larry Dickerson
Beaver And Beaver Dam Removal In Wisconsin Trout Streams, Larry Dickerson
Eastern Wildlife Damage Control Conference: 4th (1989)
Beaver (Castor canadensis) dam building activities create many long-term affects on stream ecosystems. Beaver dams may negatively influence trout fisheries by creating physical barriers to spawning areas, increasing sediment retention, and increasing water temperatures. The U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) Animal Damage Control (ADC) program in Wisconsin, entered into cooperative agreements with the Wisconsin Department of Natural Resources (WDNR) and the U.S. Forest Service (USFS) on the Nicolet National Forest from June through September, 1988, to remove beaver and beaver dams from priority classed trout streams. Four hundred and eight beaver …
Evaluation Of A Canada Goose Call-Activated Switch For Crop Damage Abatement, James W. Heinrich, Scott R. Craven
Evaluation Of A Canada Goose Call-Activated Switch For Crop Damage Abatement, James W. Heinrich, Scott R. Craven
Eastern Wildlife Damage Control Conference: 4th (1989)
Damage and nuisance problems caused by Canada geese (Branta canadensis) are difficult to control with current abatement technology. We tested the efficacy of a goose call-activated switch as a modification for propane exploders (gas cannons), using recorded Canada goose calls and live goose trials. We recorded a 30 m range for the switch and found that it was activated by a range of non-target sounds. The development of this device and the technology involved are discussed. The call-activated switch is not a useful tool in reducing Canada goose damage in crop fields. Canada geese frequently feed on agricultural …