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Articles 5251 - 5280 of 6627
Full-Text Articles in Environmental Health and Protection
An Evaluation Of Modified 4-Aminopyridine Baits For Protecting Sunflower From Blackbird Damage, C. Edward Knittle, John L. Cummings, George M. Linz, Jerome F. Besser
An Evaluation Of Modified 4-Aminopyridine Baits For Protecting Sunflower From Blackbird Damage, C. Edward Knittle, John L. Cummings, George M. Linz, Jerome F. Besser
Proceedings of the Thirteenth Vertebrate Pest Conference (1988)
Bait preference studies with red-winged blackbirds (Agelaius phoeniceus) in North Dakota sunflower fields indicated that sunflower seeds and a combination of sunflower seeds and chopped corn (MIX) were more successful in producing affected blackbirds, primarily red-winged blackbirds, than pearl barley or chopped corn used separately. A subsequent study compared the effectiveness of commercial Avitrol FC Corn Chops-99S to 4-aminopyridine-treated MIX-99S baits for reducing blackbird damage to ripening sunflower. Both baits significantly reduced damage in fields nearest a blackbird roost (within two miles), but were largely ineffective in fields farther than two miles from a roost. The ramifications of these results …
Environmental Assessment Of Las Vegas Wash And Lake Mead Artificial Wetlands Demonstration Project, John R. Baker, R. M. Gersberg, U.S. Environmental Protection Agency
Environmental Assessment Of Las Vegas Wash And Lake Mead Artificial Wetlands Demonstration Project, John R. Baker, R. M. Gersberg, U.S. Environmental Protection Agency
Publications (WR)
The effective use of artificial wetlands for treatment of municipal wastewater is well documented; however, design and economic data for artificial wetlands development are limited (Gersberg et al., 1984a). This is due partly to regional differences in climate, soils, and vegetation and partly to the desired waste treatment. As a result, specific treatment levels and cost benefits relative to the use of an artificial wetlands for a particular site cannot be evaluated adequately without a pilot demonstration project. Las Vegas Wash receives sewage effluent from the Las Vegas metropolitan area and has been designated as a wetlands community park. Las …
Flocoumafen -- A New Anticoagulant Rodenticide , M. Lund
Flocoumafen -- A New Anticoagulant Rodenticide , M. Lund
Proceedings of the Thirteenth Vertebrate Pest Conference (1988)
ABSTRACT: Flocoumafen is a new anticoagulant rodenticide with an acute toxicity between that of bromadiolone and brodifacoum. It has performed well in field tests against house mice and susceptible as well as resistant brown rat populations. Danish lab tests reveal a considerable variation in susceptibility between rodent species and indicate that practical problems in the control of certain Scandinavian bromadiolone-resistant house mouse populations may arise shortly after introduction.
Limnological Monitoring Data For Lake Mead During 1987: Technical Report No. 20, Larry J. Paulson
Limnological Monitoring Data For Lake Mead During 1987: Technical Report No. 20, Larry J. Paulson
Publications (WR)
Limnological monitoring was conducted in Las Vegas Bay and Boulder Basin from April to December of 1987. The purpose of the monitoring was to (i) document possible changes in water quality resulting from decreased phosphorus loading in Las Vegas Wash, and (ii) establish a data base for evaluating the adequacy of water quality standards.
River Discharge Study, Laughlin, Nevada: Colorado River Model And Diffusion Study, B. Dennis Hugh, David L. Stringfield, Jill C. Bicknell, Robert A. Ryder, Clark County Sanitation District, Nevada
River Discharge Study, Laughlin, Nevada: Colorado River Model And Diffusion Study, B. Dennis Hugh, David L. Stringfield, Jill C. Bicknell, Robert A. Ryder, Clark County Sanitation District, Nevada
Publications (WR)
A water quality modeling study of the Mohave Reach of the Lower Colorado River (from Davis Dam to the Nevada/California Stateline) was conducted to evaluate potential water quality impacts resulting from a proposed Laughlin, Nevada wastewater effluent discharge. The study included four major components: (1) review of the current regulatory framework; (2) a field data collection program to document existing water quality conditions in winter, summer, and fall; (3) development and verification of far-field and near-field (mixing zone) water quality models; and (4) application of the models to project future river quality conditions for several treatment-discharge alternatives as well as …
Changes In The Morphometry Of Las Vegas Wash And The Impact On Water Quality, Richard A. Roline, James J. Sartoris, U.S. Bureau Of Reclamation
Changes In The Morphometry Of Las Vegas Wash And The Impact On Water Quality, Richard A. Roline, James J. Sartoris, U.S. Bureau Of Reclamation
Publications (WR)
Las Vegas Wash, a natural wash east of Las Vegas, Nevada, carries stormwater, groundwater drainage, and sewage effluent from two sewage treatment plants to Lake Mead. Over 80 percent of the normal discharge of approximately 3.4 m3/s (120 ft3/s) consists of effluent from the City of Las Vegas and Clark County sewage treatment plants. Beginning in the 1950s, a large wetland area developed along the wash that supported waterfowl populations and contributed to some water quality transformations. Heavy rains and subsequent flooding in the area in 1983 and 1984 resulted in erosion and channelization that greatly …
Carbon Dioxide Emissions And Fossil Fuel Consumption A Canadian Perspective, John Peter Doucet
Carbon Dioxide Emissions And Fossil Fuel Consumption A Canadian Perspective, John Peter Doucet
Theses and Dissertations (Comprehensive)
The potential climate change due to increased loading of carbon dioxide in the atmosphere has emerged as one of the most significant environmental threats of the late twentieth century. An analysis of a variety of feasible energy demand scenarios for Canada indicates that if we continue to consume the same types and proportions of fuels as we do today, the expected demand for energy in the year 2005 would yield carbon dioxide emissions up to 52.5 per cent greater than that of 1985. On the other hand, if Canada were to alter the types and quantities of fuels required to …
River Discharge Study, Laughlin, Nevada: Field Survey Data, 1987, B. Dennis Hugh, David L. Stringfield, Jill C. Bicknell, Robert A. Ryder, Clark County Sanitation District, Nevada
River Discharge Study, Laughlin, Nevada: Field Survey Data, 1987, B. Dennis Hugh, David L. Stringfield, Jill C. Bicknell, Robert A. Ryder, Clark County Sanitation District, Nevada
Publications (WR)
A report of the first field data collection effort for the Laughlin River Discharge Study, conducted by Kennedy/Jenks/ChiIton in February, 1987, on the Mohave Reach of the Colorado River. This report also serves to transmit the laboratory analysis reports for all of the analyses performed and summary tables of the results.
This report is organized as follows:
1. Field Conditions and Methodology
2. Summary of Sampling and Analysis Results
3. Deviations from the Proposed Sampling Program
4. Recommendations for Future Sampling
5. Attachments:
A. Climatological Data
B. Davis Dam Average Hourly Releases
C. Laboratory Analysis Reports
Urban Gray Squirrel Damage And Population Management: A Case History, J. Hadidian, D. Manski, V. Flyger, C. Cox, G. Hodge
Urban Gray Squirrel Damage And Population Management: A Case History, J. Hadidian, D. Manski, V. Flyger, C. Cox, G. Hodge
Third Eastern Wildlife Damage Control Conference (1987)
Lafayette Park, a 3.0 hectare national park located across the street from the White House in Washington D.C., has had a gray squirrel (Sciurus carolinensis) density as high as 50 animals/hectare. In recent years this large population caused significant damage to mature trees and other vegetation. In keeping with the legislative mandate to protect and preserve the historic landscape in Lafayette Park, the National Park Service implemented a squirrel management program following an Integrated Pest Management (IPM) approach. The population was studied and monitored to determine the ecological bases for high squirrel numbers. Action was taken through a …
Preliminary Testing Of A Selenium-Based Systemic Deer Browse Repellent, T.R. Angradi, W.M. Tzilkowski
Preliminary Testing Of A Selenium-Based Systemic Deer Browse Repellent, T.R. Angradi, W.M. Tzilkowski
Third Eastern Wildlife Damage Control Conference (1987)
Silviculturists use a variety of techniques, including repellents, to reduce browse damage by white-tailed deer (Odocoileus virginianus) to valuable eastern hardwood seedlings. Systemic selenium, sodium selenite, was evaluated with captive white-tailed deer for its repellency in white ash (Fraxinus americana) and black cherry (Prunus serotina) seedlings. Selenium had no effect in reducing browsing of black cherry. However, there was a reduction (p<0.05) in the white ash browsing level.
State/Federal/Private Cooperative Program Relationships In Wildlife Damage Control, Rene M. Bollengier Jr.
State/Federal/Private Cooperative Program Relationships In Wildlife Damage Control, Rene M. Bollengier Jr.
Third Eastern Wildlife Damage Control Conference (1987)
On December 19, 1985, Congress transferred the Animal Damage Control (ADC).program from Fish and Wildlife Service (FWS), Department of the Interior, to Animal Plant Health Inspection Service (APHIS), United States Department of Agriculture (USDA). The transfer of personnel and equipment was officially completed on April 1, 1986. The transfer brought to USDA personnel with hundreds of years of collective animal damage control experience in agricultural and non-agricultural types of man/wildlife conflicts.
Frogs Captured In Green Bean Harvest:Analysis Of A Pest Problem, Donald F. Caccamise
Frogs Captured In Green Bean Harvest:Analysis Of A Pest Problem, Donald F. Caccamise
Third Eastern Wildlife Damage Control Conference (1987)
In southern New Jersey a new agricultural pest problem has seriously impacted production of green beans for plant processing. Newly acquired harvesters inadvertently capture frogs, which are difficult and expensive to remove from harvested beans. Goals of this project were to (1) define the biological properties of the pest problem, and (2) identify biologically sound and effective methods to manage the problem. Fowler's toad (Bufo woodhousei fowleri) was the most numerous (82%) of 9 species sorted from harvested beans, and it was also the most common in field censuses (76%). Density estimates based on field censuses were higher …
Status Of The Coyote In The Northeastern United States, Robert E. Chambers
Status Of The Coyote In The Northeastern United States, Robert E. Chambers
Third Eastern Wildlife Damage Control Conference (1987)
This report represents a summary of information derived from responses to mail questionnaires from the state wildlife agencies in 16 northern states extending from Maine to Minnesota with minor modifications by the author where experience deemed it feasible. Coyotes-historically present in prairie regions of Minnesota, Wisconsin, Illinois, Indiana and Michigan- have extended their range eastward to the Atlantic Ocean and are now present throughout most of the northeastern states with the exception of Delaware and the major metropolitan areas of Philadelphia and New York City. Of the eastern states only New York has suggested that their population may have arisen …
Public Tolerance Of Deer In A Suburban Environment: Implications For Management And Control, Nancy A. Connelly, Daniel J. Decker, Sam Wear
Public Tolerance Of Deer In A Suburban Environment: Implications For Management And Control, Nancy A. Connelly, Daniel J. Decker, Sam Wear
Third Eastern Wildlife Damage Control Conference (1987)
A mail survey of residents in suburban northern Westchester County, New York was conducted to determine the nature and extent of deer damage in the county, the importance of deer damage relative to other deer-human interactions, and residents' perceptions of costs and benefits associated with the deer herd. The estimated cost of damage to plantings was quite high, $6.4 million to $9.5 million (depending on the type of assumptions concerning non-respondents). Most respondents used some form of deer damage control (estimated to cost $1.2 to $1.8 million/year), but few people reported their problems to officials. Although these costs were high, …
The Urban-Suburban Canada Goose: An Example Of Short-Sighted Management?, Michael R. Conover
The Urban-Suburban Canada Goose: An Example Of Short-Sighted Management?, Michael R. Conover
Third Eastern Wildlife Damage Control Conference (1987)
During the last 30 years, Canada Goose (Branta canadensis) populations have become established in many urban and suburban parts of North America. Most of these scattered populations were established when live geese were released in these areas or nearby rural areas by individual hunters, sportmen's groups and game agencies. The birds quickly found lawns in urban-suburban areas an abundant source of nutritious grass for grazing and discovered people willing to provide supplementary handouts. The resident goose populations thrived; in Connecticut alone their population has increased to 9,000. However, the increased populations contributed little to the hunter's take because the geese …
New Uses Of Livestock Guarding Dogs To Reduce Agriculture/Wildlife Conflicts, R. Coppinger, J. Lorenz, Lorna Coppinger
New Uses Of Livestock Guarding Dogs To Reduce Agriculture/Wildlife Conflicts, R. Coppinger, J. Lorenz, Lorna Coppinger
Third Eastern Wildlife Damage Control Conference (1987)
Pilot programs in several states have shown that livestock guarding dogs are 70-80% effective in reducing predation on livestock by wildlife, primarily coyotes. In order to increase that percentage, ineffective dogs were studied and new techniques tested that had the potential of turning problems into successes. From the population of over 1,000 dogs that has been placed on farms and ranches nationwide during the past ten years under the auspices of the Livestock Dog Project at Hampshire College, data was analyzed for each of the three basic behaviors (trustworthy, attentive, protective) that a good guardian needs to exhibit. A wide …
Management Of Suburban Deer: An Emerging Controversy, Daniel J. Decker
Management Of Suburban Deer: An Emerging Controversy, Daniel J. Decker
Third Eastern Wildlife Damage Control Conference (1987)
During the last 10 years the presence of deer (Odocoileus virginianus) in suburban areas has become an increasing concern from the standpoint of damage and nuisance problems. It is unclear whether (a) overall deer numbers in suburban environments have increased (possibly because of residential development in "natural" settings and creation of food sources represented by residents' ornamental plantings and vegetable gardens), (b) more development in suburban areas has forced deer into adjacent remaining patches of suitable habitat, resulting in increased deer densities in certain localities, or (c) some combination of both. Regardless of the factors perpetrating the situation, …
Categorization And Seasonal Periodicity Of Terrestrial Vertebrate Pest Control Inquiries In Virginiav, Harry J. Dutton, Jefferson L. Waldon, Peter L. Bromley
Categorization And Seasonal Periodicity Of Terrestrial Vertebrate Pest Control Inquiries In Virginiav, Harry J. Dutton, Jefferson L. Waldon, Peter L. Bromley
Third Eastern Wildlife Damage Control Conference (1987)
Information requests for species-specific preventive and control measures directed to the state's extension wildlife specialist were recorded by species or species group, month, day, and year, and by type of human group inquiring. Skunks (15.5%), snakes (14.7%), and bats (10.9%) were inquired about most often. Homeowners (67.4%) were the most frequent inquirers. Summer (43.5%) and spring (29.0%) were the seasons when most information requests occurred. Woodpeckers (16.0%) were the most frequently reported species in the spring. In the summer, the most frequently requested information was about bats (20.2%). Snakes (29.7%) were the most frequently reported species in the fall. Over …
The Bird Strike Hazard (Bash) Program, Capt. Edgardo R. Farrraro, Capt. Russell P. Defusco
The Bird Strike Hazard (Bash) Program, Capt. Edgardo R. Farrraro, Capt. Russell P. Defusco
Third Eastern Wildlife Damage Control Conference (1987)
The hazards birds pose to aircraft has been of concern to the Air Force for more than 20 years. After losing several aircraft due to bird strikes in the early 1960's, the Air Force formed a team to evaluate bird hazards to Air Force aircraft. The team, from the Air Force Weapons Laboratory (AFWL) at Kirtland AFB NM, handed over this mission to the Bird Aircraft Strike Hazard (BASH) Team at HQ Air Force Engineering and Services Center (AFESC) at Tyndall AFB in 1975. In 1986 (October) the BASH team moved to Boiling AFB, Washington DC. The Air Force sustains …
Frontmatter And Contents
Third Eastern Wildlife Damage Control Conference (1987)
PROCEEDINGS OF THE THIRD EASTERN WILDLIFE DAMAGE CONTROL CONFERENCE
Temporal Use Patterns Of Wintering Starlings At A Southeastern Livestock Farm: Implications For Damage Control, J.F. Glahn, S.K. Timbrook, D.J. Twedt
Temporal Use Patterns Of Wintering Starlings At A Southeastern Livestock Farm: Implications For Damage Control, J.F. Glahn, S.K. Timbrook, D.J. Twedt
Third Eastern Wildlife Damage Control Conference (1987)
The farm use patterns of individually marked and transmitter-equipped starlings at a livestock farm in south-central Kentucky were studied each month during the principal damage period (December-February) of 1982-83 and 1984-85 following a pilot study in January and February of 1980. In addition to intensive observation at the farm, sightings of tagged starlings away from the farm were solicited from the public and mapped. For each year of data on individual starlings that used the farm at least once after marking, the expected frequencies of farm occurrence were calculated and compared to observed frequencies. In all 3 years, there was …
Involving Hunting And Trapping In Cooperative Wildlife Damage Control, Ed Hackett
Involving Hunting And Trapping In Cooperative Wildlife Damage Control, Ed Hackett
Third Eastern Wildlife Damage Control Conference (1987)
The perception of a wildlife damage problem may vary greatly among groups with a stake in the problem. To the deer hunter, there is no such problem as too many deer. To the farmer, in the midst of a personal economic disaster, one deer may seem too many. To the conservation officer (CO) who has spent a career building deer populations, the farmer's problem may be a sign of success. To the USDA-APHISADC staff member, solving the farmer's problem may be the most important issue. The key to resolving these conflicting views of the same event is to make each …
Fox Squirrels Cause Power Outages: An Urban Wildlife Problem, J.C. Hamilton, R. J. Johnson, R. M. Case, M. W. Riley, W. W. Stroup
Fox Squirrels Cause Power Outages: An Urban Wildlife Problem, J.C. Hamilton, R. J. Johnson, R. M. Case, M. W. Riley, W. W. Stroup
Third Eastern Wildlife Damage Control Conference (1987)
In urban areas, power outages are caused each year by fox squirrels (Sciurus niger) that use electrical power equipment as travel lanes, rest sites, or for other activities. When a squirrel crosses a live bare wire on a transformer, the result is a blown fuse and electrocution of the squirrel. Power company outage reports were examined to determine when and where squirrel-caused outages occurred. Sixteen field sites in Lincoln were selected for study. Eight sites encircled transformers with ≥4 squirrel-caused outages, 1980-1985, and eight were adjacent control sites with no such outages. Squirrel behavior in relation to power …
Distribution And Impact Of Canada Goose Crop Damage In East-Central Wisconsin, James Heinrich, Scott Craven
Distribution And Impact Of Canada Goose Crop Damage In East-Central Wisconsin, James Heinrich, Scott Craven
Third Eastern Wildlife Damage Control Conference (1987)
The steady increase in the numbers of Canada geese on or near Horicon National Wildlife Refuge since its establishment in the early 1940s has resulted in many opportunities, and a few difficult problems. The problem of crop depredations has plagued the Horicon area since the mid-1960s. Each increase in goose numbers has brought with it renewed farmer concern, and each incident has resulted in some change in goose management direction. Increasing problems, more geese, lower harvest quotas, and the new Wisconsin Wildlife Damage Program combined to encourage the Wisconsin Department of Natural Resources (WDNR) to take a comprehensive look at …
Controlling Blackbirds And Starlings At Winter Roosts Using Pa-14, J.F. Heisterberg, A.R. Stickley Jr., K.M. Garner, P.D. Foster Jr.
Controlling Blackbirds And Starlings At Winter Roosts Using Pa-14, J.F. Heisterberg, A.R. Stickley Jr., K.M. Garner, P.D. Foster Jr.
Third Eastern Wildlife Damage Control Conference (1987)
The only EPA-registered chemical for lethal control of winter roosting blackbird (Icterinae) and European starling (Sturnus vulgaris) populations is Compound PA-14 Avian Lethal Agent (PA-14). Between 1978 and 1987, 39 PA-14 spray operations, 15 by helicopter and 24 by ground-based spray systems, have been conducted at 33 winter roosts in Kentucky, Tennessee, and Alabama. In-roost bird mortality for the aerial operations have been poor, averaging only 4% of the pretreatment roost populations or 114,000 birds killed per spray operation. Although very labor-intensive, a ground-based sprinkler system application method has proven much more successful, averaging 67% in-roost bird mortality …
Great-Tailed Grackle Predation On South Texas Citrus (Identifying A Unique Problem), John Hobbs, Fred G. Leon Iii
Great-Tailed Grackle Predation On South Texas Citrus (Identifying A Unique Problem), John Hobbs, Fred G. Leon Iii
Third Eastern Wildlife Damage Control Conference (1987)
The December 1983 freeze inflicted tremendous damage to the South Texas groves and reduced tree by approximately fifty Additionally, it is believed that Great-tailed grackle (Quiscalus mexicanus) populations increased over the past few years. With decreased citrus acreage and increased grackle numbers, the severe negative effects are economically significant to the Texas citrus industry. Grackle damage to grapefruit and oranges differs in type and economic importance. The first is "cosmetic" in nature, small pecks or scratches on the fruit skin, and downgrades the fruit, reducing its value. The second is actual crop loss due to consumption of fruit …
An Evaluation Of Controlled Hunting For Management Of Feral Pigeons, Michael D. Hoy, Albert E. Bivings
An Evaluation Of Controlled Hunting For Management Of Feral Pigeons, Michael D. Hoy, Albert E. Bivings
Third Eastern Wildlife Damage Control Conference (1987)
Pigeons (Columba livia) are a problem for municipal governments throughout most of the eastern United States. Toxicants, sterilants, trapping, and shooting are the principal control techniques. Due to a general public aversion to toxicants and to monetary constraints, a pigeon control program which utilized periodic hunting pressure was initiated in Stuttgart, Arkansas County, Arkansas. Guidelines for organization of controlled hunts are presented along with pigeon harvest rates and population trends. The city government and interested citizens consider the program to be successful and cost effective.
Home Range Responses Of White-Tailed Deer To Crop-Protection Fences, S.E. Hygnstrom, S.R. Craven
Home Range Responses Of White-Tailed Deer To Crop-Protection Fences, S.E. Hygnstrom, S.R. Craven
Third Eastern Wildlife Damage Control Conference (1987)
We studied the home ranges and activity patterns of 24 white-tailed deer (Odocoileus virginianus) in southwestern Wisconsin via radio-telemetry and visual observation to determine their response to single-strand electric crop-protection fences. Deer were allowed to establish feeding patterns in alfalfa fields during the spring green-up periods of 1986 and 1987. In mid-April of each year, 7 fences were constructed around selected 7-25 ha alfalfa fields to exclude deer from varying portions of their home ranges. No fences were constructed around alfalfa fields in one area. Fences were built around 50 and 100% of the alfalfa in 2 other areas. Deer …
Wildlife Damage To Agriculture In Nebraska: A Preliminary Cost Assessment, R. J. Johnson, R. M. Timm
Wildlife Damage To Agriculture In Nebraska: A Preliminary Cost Assessment, R. J. Johnson, R. M. Timm
Third Eastern Wildlife Damage Control Conference (1987)
We estimate the annual financial losses resulting from wildlife damage to major crops and livestock in Nebraska. For each wildlife species, the damage problem is presented along with a description of how the estimate was made. Field crop estimates include losses from Plains pocket gophers (Geomys bursarius), commensal rodents (Rattus norvegicus and Mus musculus), field rodents in grain fields (e.g. Peromyscus maniculatus, Dipodomys ordi, Spermophilus tridecemlineatus), house sparrows (Passer domesticus), blackbirds (e.g. Agelaius phoeniceus and Quiscalus quiscula), lagomorphs (Sylvilaqus floridanus, Lepus californicus, and L. townsendii), deer …
Coyote Damage In The Southeastern United States, Edwin J. Jones
Coyote Damage In The Southeastern United States, Edwin J. Jones
Third Eastern Wildlife Damage Control Conference (1987)
County agricultural agents in all 82 counties of Mississippi and Extension Wildlife Specialists in the other 10 southeastern states were asked to respond to a short questionnaire on coyote damage in their respective county or state. The questionnaire requested the respondents to: 1) indicate if the number of coyote reports have increased, decreased, or remained stable over the last 5 years, 2) indicate the number of reports they were aware of in the last year, 3) report the type of damage and the associated economic loss, 4) estimate the economic loss over the last 5 years, and 5) provide any …