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Articles 46681 - 46710 of 52496
Full-Text Articles in Physical Sciences and Mathematics
Lake Mead Prefertilization Study: Preliminary Nutrient Enhancement Studies In Lake Mead, Richard P. Axler, Larry J. Paulson, Patrick J. Sollberger, Donald H. Baepler, U.S. Bureau Of Reclamation
Lake Mead Prefertilization Study: Preliminary Nutrient Enhancement Studies In Lake Mead, Richard P. Axler, Larry J. Paulson, Patrick J. Sollberger, Donald H. Baepler, U.S. Bureau Of Reclamation
Publications (WR)
Studies conducted by the University of Nevada-Las Vegas (UNLV), the Nevada Department of Wildlife (NDOW), the Arizona Game and Fish Department (AGFD), The Nevada Division of Environmental Protection (NDEP), and the United States Bureau of Reclamation (USBR) have identified decreased algal production as a major factor involved in the decline of the Lake Mead sport fishery. Phosphorus-laden silt particles in the Colorado River have been sedimenting out in Lake Powell since the completion of Glen Canyon Dam 286 miles upstream in 1963. This sharp decrease in phosphorus loading to Lake Mead (>5000 tons per year) has resulted in decreased …
The Probe, Issue 77 - November 1987
The Probe, Issue 77 - November 1987
The Probe: Newsletter of the National Animal Damage Control Association
THE PROBE
National Animal Damage Control Association
NOVEMBER, 1987
Duck Hunting Regulations
Cranes
APHIS Activity Report
Bombardier Muskeg Tractor
Hunting License Sales
Letters to Ye Ed
Bird Species Endemic
Arizona Bear Society
A Pest Population Compensating for Mortality Due to Pest Control Measures
Cat Farm
Trupeter Swan colony
Animal Rights
Monthly Planet, 1987, Novemeber, Erin Wright, Huxley College Of The Environment, Western Washington University
Monthly Planet, 1987, Novemeber, Erin Wright, Huxley College Of The Environment, Western Washington University
The Planet
No abstract provided.
Resource Law Notes Newsletter, No. 12, Nov. 1987, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes Newsletter, No. 12, Nov. 1987, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)
No abstract provided.
Water Erosion In The Geraldton Area During June-July 1986, K J. Bligh
Water Erosion In The Geraldton Area During June-July 1986, K J. Bligh
Resource management technical reports
No abstract provided.
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
Wildlife Damage Management Conference
The December 1983 freeze inflicted tremendous damage to the South Texas citrus groves and reduced tree numbers by approximately fifty percent. Additionally, it is believed that Great-tailed grackle (Quiscalus mexicanus) populations have 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 …
Control Of Ring-Billed Gull Colonies At Urban And Industrial Sites In Southern Ontario, Canada, H. Blokpoel, G.D. Tessier
Control Of Ring-Billed Gull Colonies At Urban And Industrial Sites In Southern Ontario, Canada, H. Blokpoel, G.D. Tessier
Eastern Wildlife Damage Control Conference: 3rd (1987)
At eight urban or industrial sites in southern Ontario colonies of Ring-billed Gulls (Larus delawarensis) were controlled to ameliorate problems caused by the adults and their young. At the Nanticoke Generating Station on Lake Erie a growing colony was eliminated by collecting eggs and subsequent harassment of adults. One colony at the Stelco Yards in Hamilton Harbor was eliminated by installing a gull exclosure and collecting eggs from nests outside the exclosure and another was controlled by frequently destroying nests and eggs. At Toronto Island Airport an incipient colony was controlled by collecting eggs and harassing adults. At …
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.
Eastern Wildlife Damage Control Conference: 3rd (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.
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
Eastern Wildlife Damage Control Conference: 3rd (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 Critter Control Concept Approaches Of A Firm Specializing In Nuisance Wildlife Control, Lynn Braband, Kevin Clark
The Critter Control Concept Approaches Of A Firm Specializing In Nuisance Wildlife Control, Lynn Braband, Kevin Clark
Eastern Wildlife Damage Control Conference: 3rd (1987)
The private sector has been involved in certain aspects of nuisance wildlife control for some time. Examples include commensal rodent control by pest control companies, capture of nuisance furbearers by trappers, and repair of structural damage by carpenters. Social trends, such as increased urbanization, increased population of certain wildlife species, and decreased government funding have combined to provide increased opportunity and need for the private sector in nuisance wildlife control. Critter Control, Inc. has sought to bring an integrated and specialized approach to nuisance wildlife control. Our general approach includes consultation on the nature of the nuisance situation, removal of …
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
Eastern Wildlife Damage Control Conference: 3rd (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 …
Involving Hunting And Trapping In Cooperative Wildlife Damage Control, Ed Hackett
Involving Hunting And Trapping In Cooperative Wildlife Damage Control, Ed Hackett
Eastern Wildlife Damage Control Conference: 3rd (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 …
The Problem Of Planting Louisiana Swamplands When Nutria(Myocastqr Coypu) Are Present, W.H. Conner, J.R. Toliver
The Problem Of Planting Louisiana Swamplands When Nutria(Myocastqr Coypu) Are Present, W.H. Conner, J.R. Toliver
Eastern Wildlife Damage Control Conference: 3rd (1987)
Logging of baldcypress (Taxodium distichum) in the swamps of the southeastern United States is once again becoming common and an area of particular concern in Louisiana is the regeneration of cypress in its natural environment. One way to ensure the proper stocking of cypress is to plant seedlings, but nutria usually damage or destroy newly planted seedlings and are a deterrent to cypress regeneration in flooded areas. In 1985 cypress seedlings were planted in a flooded logged area and in an area where flooding was preventing the establishment of natural seedlings. Nutria destroyed 86% of the seedlings in …
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
Eastern Wildlife Damage Control Conference: 3rd (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, …
Effectiveness Of Human Hair, Bgr, And A Mixture Of Blood Meal And Peppercorns In Reducing Deer Damage To Young Apple Trees, Michael R. Conover, Gary S. Kania
Effectiveness Of Human Hair, Bgr, And A Mixture Of Blood Meal And Peppercorns In Reducing Deer Damage To Young Apple Trees, Michael R. Conover, Gary S. Kania
Eastern Wildlife Damage Control Conference: 3rd (1987)
We evaluated the ability of three repellents [human hair, Big Game Repellent (BGR), and a mixture of blood meal and peppercorns] to reduce deer damage on young apple trees in two Connecticut orchards. Most of the deer damage consisted of winter browsing on dormant apple buds. Little browsing occurred on leaves or buds during the growing season and only a few cases of pre-rut rubbing of trees were observed. In one orchard, buds were browsed during the winter on 52% of the untreated control trees, 45% of the trees sprayed with BGR, and 40% of the trees containing a hair …
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
Eastern Wildlife Damage Control Conference: 3rd (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.
Status Of The Coyote In The Northeastern United States, Robert E. Chambers
Status Of The Coyote In The Northeastern United States, Robert E. Chambers
Eastern Wildlife Damage Control Conference: 3rd (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 …
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
Eastern Wildlife Damage Control Conference: 3rd (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 …
Management Of Suburban Deer: An Emerging Controversy, Daniel J. Decker
Management Of Suburban Deer: An Emerging Controversy, Daniel J. Decker
Eastern Wildlife Damage Control Conference: 3rd (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, …
Use Of Drc 1339 To Control Crows In Three Roosts In Kentucky And Arkansas, Frank L. Boyd, Douglas I. Hall
Use Of Drc 1339 To Control Crows In Three Roosts In Kentucky And Arkansas, Frank L. Boyd, Douglas I. Hall
Eastern Wildlife Damage Control Conference: 3rd (1987)
Field tests utilizing DRC 1339 (3- chloro-4-methylbenzamine hydrochloride) 98% concentrate on whole kernel corn for crow (Corvus brachyrhynchos) control were conducted in January and February 1981 in Lexington and Louisville, Kentucky, and in 1982 in Ashdown, Arkansas. Treated bait was placed in staging areas near the roosts after pre-baiting indicated good acceptance at the sites. The rate of acceptance varied with bait placement. Best results were obtained when bait was placed on bare ground at habitually used staging areas close to the roost site. Population reductions of up to 25% were obtained with limited baiting. DRC 1339 appears …
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
Eastern Wildlife Damage Control Conference: 3rd (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 …
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
Eastern Wildlife Damage Control Conference: 3rd (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 …
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
Eastern Wildlife Damage Control Conference: 3rd (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 …
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
Eastern Wildlife Damage Control Conference: 3rd (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 …
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
Eastern Wildlife Damage Control Conference: 3rd (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 …
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
Eastern Wildlife Damage Control Conference: 3rd (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 …
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.
Eastern Wildlife Damage Control Conference: 3rd (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 …
Status Of The Coyote In The Southeastern United States, Edward P. Hill
Status Of The Coyote In The Southeastern United States, Edward P. Hill
Eastern Wildlife Damage Control Conference: 3rd (1987)
The range of the coyote (Canis latrans) in the southeastern United States, particularly east of the Mississippi River, has recently expanded. Although populations were present in Arkansas and Louisiana in the 1960s, only isolated individuals were known to exist east of the river before 1975. In addition to Arkansas and Louisiana, the present range includes Mississippi and Alabama, the western three fourths of Kentucky and Tennessee, Northwestern Florida, south-central and northwest Georgia and scattered portions of Maryland, West Virginia, Virginia, North and South Carolina, and Peninsular Florida. Recent literature indicates that several releases have influenced the rate of …
Catch Effectiveness And Selectivity Of Several Traps, Edward P. Hill
Catch Effectiveness And Selectivity Of Several Traps, Edward P. Hill
Eastern Wildlife Damage Control Conference: 3rd (1987)
The effectiveness and selectivity of several traps and trap Modifications were field-evaluated and compared in Alabama from 1977 to 19B0. No. 220 Conibear traps placed in baited open-end boxes (TB) on the ground posed a hazard to dogs and were not recommended for general use in terrestrial sets. They may be effective to control feral dogs in special situations or areas. TB devices attached to tree trunks 1 m above the ground eliminated the hazard to dogs, but rendered the trap ineffective for taking small mammals. No. 220 Conibear traps with selective position treadle triggers placed in trail water-sets were …
Research Needs In Education And Research Institutions, Jay B. Mcaninch
Research Needs In Education And Research Institutions, Jay B. Mcaninch
Eastern Wildlife Damage Control Conference: 3rd (1987)
Research to support wildlife management programs has traditionally been conducted by scientists in education and research institutions. Much of this work has resulted from state and federal agency program needs or has been funded by state or federal agencies upon solicitation from scientists at these institutions. Regardless of the origin of the research, these institutions have primarily provided the investigators and staff for conducting research on animal damage problems. The priorities, duration and depth of the efforts have been dependent upon the commitment to damage control research by the investigator and the quality of funding support.