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2000

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Articles 241 - 270 of 2919

Full-Text Articles in Physical Sciences and Mathematics

What Are The Research Needs And Skills Of The Future?, Richard D. Curnow Oct 2000

What Are The Research Needs And Skills Of The Future?, Richard D. Curnow

Wildlife Damage Management Conference Proceedings

One can be a student of Tom Peters, management visionary and futurist, or Gary San Julian, a leader in the academics of wildlife damage management (WDM), but that is not necessary to be impressed and excited by the rapid trends and unpredictable events that are altering how we think about and attempt to manage the nation's precious wildlife resources. Because of the boundless propensity of mankind to develop, inhabit, and alter the landscape, wildlife managers of today and the future require different strategies, tools, and skills than those who did such a fine job of conservation and management in past …

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What Will The Disease Issues Of The Future Be?, Robert G. Mclean Oct 2000

What Will The Disease Issues Of The Future Be?, Robert G. Mclean

Wildlife Damage Management Conference Proceedings

The major categories of diseases of the future involving wildlife are zoonotic diseases of public health importance, domestic animal diseases of economic importance, and wildlife diseases and health of wildlife importance. The existing patterns of these diseases include exotic, introduced diseases (West Nile virus - WNV), emerging diseases (Lyme disease), re-emerging diseases (animal rabies), and continuing diseases (leptospirosis). Some significant emerging public health diseases are WNV, hantavirus, Lyme disease, hemorrhagic E. coli 0157:H7, and antibiotic resistant bacteria. Emerging domestic animal diseases also include WNV, E. coli 0157:H7, salmonella enterica, and spongiform encephalopathies. Whereas, emerging wildlife diseases are WNV, particularly in …

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Turkey Damage Survey: A Wildlife Success Story Becoming Another Wildlife Damage Problem, James E. Miller, Brain C. Tefft, Robert E. Eriksen, Mike Gregonis Oct 2000

Turkey Damage Survey: A Wildlife Success Story Becoming Another Wildlife Damage Problem, James E. Miller, Brain C. Tefft, Robert E. Eriksen, Mike Gregonis

Wildlife Damage Management Conference Proceedings

Wild turkey (Meleagris gallopavo) populations have been restored and enhanced through introductions and reintroductions in 49 of the 50 states to huntable populations within the last 30 years. Populations are presently estimated to exceed 4 million birds within the United States. In many states, wild turkey habitat includes woodlots interspersed with agricultural lands, and some of the highest known population densities of wild turkeys are found in such areas. This paper will report on existing research, examining perceived versus actual damage caused by wild turkeys. It will also provide information based on a recent survey of biologists from the State …

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Evaluation Of Moderate And Low-Powered Lasers For Dispersing Double-Crested Cormorants From Their Night Roosts, James F. Glahn, Greg Ellis, Paul Fioranelli, Brian S. Dorr Oct 2000

Evaluation Of Moderate And Low-Powered Lasers For Dispersing Double-Crested Cormorants From Their Night Roosts, James F. Glahn, Greg Ellis, Paul Fioranelli, Brian S. Dorr

Wildlife Damage Management Conference Proceedings

The double-crested cormorant (Phalacrocorax auritus) is the primary avian predator on the southern catfish industry, estimated to cause $5 million in damage per year. To date, the most effective strategy for alleviating cormorant depredations in areas of intensive catfish production is coordinated dispersal of cormorant night roosts with pyrotechnics. Many of these night roosts are located in waterfowl refuges or wetland habitat leased for waterfowl hunting. Thus, there is an increasing concern about the effects of cormorant harassment efforts on waterfowl and other wildlife inhabiting these sites in cypress-swamp habitat. To address the need for a roost harassment device that …

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Bada Bang, Bada Boom: Dispersal Of Fall Migrating Cormorants To Protect Sportfish On Oneida Lake, New York, Richard B. Chipman, Milo Richmond, Justin T. Gansowski, Ken J. Preusser, Douglas L. Stang, Jeremy Coleman, Dennis Slate Oct 2000

Bada Bang, Bada Boom: Dispersal Of Fall Migrating Cormorants To Protect Sportfish On Oneida Lake, New York, Richard B. Chipman, Milo Richmond, Justin T. Gansowski, Ken J. Preusser, Douglas L. Stang, Jeremy Coleman, Dennis Slate

Wildlife Damage Management Conference Proceedings

The interior population of double-crested cormorants (Phalacrocorax auritus) continues to increase. As a result, conflicts between human interests and cormorants have intensified. The impacts of nesting, roosting, and migrating cormorants include predation at aquaculture facilities, interspecific competition with rare species including common terns {Sterna hirundo), and impacts to private property. In addition, heightened public and scientific debate regarding cormorant impacts on sportfish has accelerated the need for effective, socially acceptable methods for managing local conflicts. In 1998 and 1999, USDA, APHIS, Wildlife Services; the New York State Department of Environmental Conservation; and USGS, New York Fish and Wildlife Research Cooperative …

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Bird Damage To Tropical Fruit In South Florida, Eric A. Tillman, Annamaria Van Doom, Michael L. Avery Oct 2000

Bird Damage To Tropical Fruit In South Florida, Eric A. Tillman, Annamaria Van Doom, Michael L. Avery

Wildlife Damage Management Conference Proceedings

In Dade County, Florida, the production of tropical fruit is a major component of the agricultural industry with total sales amounting to $73.5 million in the 1997-1998 season. Two types of fruit in particular, lychee (Litchi chinensis) and longan (Euphoria longana), are rapidly emerging in economic importance with a combined annual value of over $19 million. For many lychee and longan growers, bird damage is perceived to be a significant constraint to production, yet there is no published information on the extent of damage caused by birds. In 1999, we initiated research to identify the bird species responsible for longan …

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Seven Years Of White-Tailed Deer Immunocontraceptive Research At Penn State University: A Comparison Of Two Vaccines , Lowell A. Miller, Gary J. Killian Oct 2000

Seven Years Of White-Tailed Deer Immunocontraceptive Research At Penn State University: A Comparison Of Two Vaccines , Lowell A. Miller, Gary J. Killian

Wildlife Damage Management Conference Proceedings

PZP and GnRH immunocontraceptive vaccines were each tested in white-tailed deer (Odocoileus virginianus). Vaccination with PZP produced reversible infertility lasting 1 to 4 years. The first two years of active immunization resulted in an 89% reduction in fawning. Reduction in fawning for the 7-year study containing 4 years of no boosting was 72%. PZP immunization resulted in multi-estrus behavior, with contracepted deer returning to estrus up to 7 times. A five year study of GnRH immunization was conducted in both male and female deer. Treatment of does led to reduced fawning rates, reduced estrus behavior and reduced concentrations of progesterone. …

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Is Translocation Effective For Reducing Raptor Strikes?, Laurence M. Schafer Oct 2000

Is Translocation Effective For Reducing Raptor Strikes?, Laurence M. Schafer

Wildlife Damage Management Conference Proceedings

From March 1996 to 31 December 1999, Wildlife Services (WS) personnel trapped and relocated 316 raptors from one of the nation's busiest airports: 147 American kestrels (Falco sparverius), 158 red-tailed hawks (Buteo jamaicensis), 5 rough-legged hawks (Buteo lagopus), 4 peregrine falcons (Falcoper-egrinus), 1 northern harrier (Circus cyaneus), and 1 eastern screech owl (Otus asio). On 1 January 1999, the Federal Aviation Administration sponsored a 2-year study, in conjunction with the National Wildlife Research Center and WS-Illinois, to evaluate the efficacy of raptor relocation at the airport. This study began in September 1999 and (1) monitors the post release activity of …

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Capsaicin-Treated Seed As A Squirrel Deterrent At Birdfeeders, Paul D. Curtis, Elizabeth D. Rowland, Gwen B. Curtis, Joseph A. Dunn Oct 2000

Capsaicin-Treated Seed As A Squirrel Deterrent At Birdfeeders, Paul D. Curtis, Elizabeth D. Rowland, Gwen B. Curtis, Joseph A. Dunn

Wildlife Damage Management Conference Proceedings

Eastern gray squirrels (Sciurus carolinensis) are considered to be a pest by many bird-lovers because they take significant quantities of seed from birdfeeders. None of the available methods of protecting birdseed against squirrels is completely effective. We assessed the efficacy of treating birdseed with capsaicin oleoresin as a means of deterring squirrels. Consumption of treated and untreated whole, black-oil sunflower seed was compared by carrying out one-choice feeding trials at 3 sites near Ithaca, New York, from 11 May to 24 June 1999. The heat strength of the treated seed was 40,000 Scoville Heat Units (SHUs) (2,424 ppm) on the …

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Evaluating Norway Rat Response To Attractant And Repellant Odors To Improve Rodenticide Baiting Effectiveness, Stephen A. Shumake, A. A. Hakim Oct 2000

Evaluating Norway Rat Response To Attractant And Repellant Odors To Improve Rodenticide Baiting Effectiveness, Stephen A. Shumake, A. A. Hakim

Wildlife Damage Management Conference Proceedings

Control of rodent infestations using acute-rodenticide baiting is frequently fraught with difficulties involving bait-shyness and neophobic effects. To simulate some of the parameters encountered in baiting situations, pre-weighed quantities of Environmental Protection Agency (EPA) standard challenge bait mixture were used as a highly palatable bait base to induce feeding without the need for food deprivation in Wistar-strain laboratory albino rats. Individual animals were tested for attractant effects of 3 odors (rat urine, preputial gland extract, and carbon disulfide) and a natural repellent odor (coyote urine) in an observation area constructed of clear plastic panels containing a central alley and 2 …

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Coding Spreadsheets For Intervention Decisions In Wildlife Damage Management, Ray T. Sterner, H. Nicole Lorimer Oct 2000

Coding Spreadsheets For Intervention Decisions In Wildlife Damage Management, Ray T. Sterner, H. Nicole Lorimer

Wildlife Damage Management Conference Proceedings

Sterner (In press) described the use of a priori, theoretical analyses of crop/resource savings and benefit:cost ratios as a way of making intervention decisions in wildlife damage management. Iterative (1-variable-changed-at-a-time) calculations of these economic indices were computed for the use of zinc phosphide baits to control vole {Microtus spp.) populations in alfalfa (Medicago sativa). Results showed that indices displayed transitive effects — greater net savings and benefit:cost ratios were related to larger field-size, crop-damage and bait-effectiveness variables, but smaller bait-application fees. Ratios varied between 0.40 and 6.45, with -5-10% vole-caused damage required to produce returns on investments equal to the …

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Empowering Local Communities To Co-Manage Deer, William F. Siemer, Daniel J. Decker, Lisa C. Chase Oct 2000

Empowering Local Communities To Co-Manage Deer, William F. Siemer, Daniel J. Decker, Lisa C. Chase

Wildlife Damage Management Conference Proceedings

Co-management of white-tailed deer (Odocolius virginianus) holds the promise of creating better management programs in many situations, but agencies may be reluctant to encourage co-management if they doubt the capacity of a community to take on management responsibilities, especially on a continuing basis. In Cayuga Heights, New York, the New York State Department of Environmental Conservation worked with Cornell University and Cornell Cooperative Extension to help a community organization create informed public dialogue about local deer management. Using a consensus-building conceptual framework, we analyzed the planning process that created this dialogue. Process participants believed that use of a third party …

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A Private Lands Approach To Controlling New Jersey's Deer Population, David Drake Oct 2000

A Private Lands Approach To Controlling New Jersey's Deer Population, David Drake

Wildlife Damage Management Conference Proceedings

In New Jersey, annual losses from white-tailed deer (Odocoileus virginianus) depredation to agricultural crops have been estimated as high as $10 million. Additional problems caused by the state's overabundance of deer include increasing vehicle/deer collisions, possible human health concerns regarding increasing incidences of Lyme disease, and a loss of flora and fauna diversity. In an effort to reduce deer numbers and minimize damage, both non-lethal and lethal management practices have been used with limited success. Hunter access to private lands remains the biggest impediment to effective deer management in New Jersey. I propose an incentive-based program to increase lease and …

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Spatial Movements In Response To Baiting Female White-Tailed Deer, Scott C. Williams, Anthony J. Denicola Oct 2000

Spatial Movements In Response To Baiting Female White-Tailed Deer, Scott C. Williams, Anthony J. Denicola

Wildlife Damage Management Conference Proceedings

A better understanding of the manipulation of white-tailed deer movement patterns in response to bait has implications for future management of increasing suburban herds. We gathered radio telemetry data for 10 female and 1 male deer over a 1-year period with artificial feeding stations activated in spring and fall. Data were triangulated in the computer program Topo!, transferred into home range program CALHOME, and imported into Arc View for analysis. Mean annual home range size was 57.7 ha with mean core area of 8.4 ha. Spatial changes in behavior of all deer were witnessed in response to bait including core …

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Communicating About Suburban Deer Management: Tailoring The Message To The Stakeholders, T. Bruce Lauber, Barbara A. Knuth Oct 2000

Communicating About Suburban Deer Management: Tailoring The Message To The Stakeholders, T. Bruce Lauber, Barbara A. Knuth

Wildlife Damage Management Conference Proceedings

Public input plays an important role in selecting suburban deer management alternatives. Agencies often communicate with the public to ensure that citizens have accurate information when judging management alternatives. Research has shown that suburban residents evaluate deer management alternatives on the basis of different sets of criteria (e.g., effectiveness, humaneness, etc.). We explored whether people's attitudes were more likely to be influenced by information if it addressed the criteria about which they were concerned. We conducted our research through two mail surveys of randomly selected residents of Irondequoit, New York, implemented 20 months apart. Some 512 people responded to both …

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The Islip Deer Initiative: A Strategy For Stakeholder Involvement In Deer Management, William F. Siemer, Daniel J. Decker, Mark D. Lowery, James E. Shanahan Oct 2000

The Islip Deer Initiative: A Strategy For Stakeholder Involvement In Deer Management, William F. Siemer, Daniel J. Decker, Mark D. Lowery, James E. Shanahan

Wildlife Damage Management Conference Proceedings

Effective stakeholder involvement is among the greatest challenges in wildlife management. In this paper, we describe an effort called the Islip Deer Initiative (IDI) to illustrate one approach that wildlife management professionals can take to design a stakeholder involvement strategy. We used a four-step procedure proposed by Chase et al. (1999) as a general guideline for process design. The procedure involves: (1) developing an understanding of the local situation (i.e., preliminary situation analysis); (2) defining the wildlife agency's objectives for stakeholder involvement; (3) selecting an overarching stakeholder involvement approach; and (4) designing context-specific stakeholder involvement strategies. In this case, preliminary …

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Landowners' Perceptions Of White-Tailed Deer Damage To Crops In Tennessee, Dawn L. Johnson, J. Mark Fly, Lisa Muller Oct 2000

Landowners' Perceptions Of White-Tailed Deer Damage To Crops In Tennessee, Dawn L. Johnson, J. Mark Fly, Lisa Muller

Wildlife Damage Management Conference Proceedings

We conducted a mail survey to determine Tennessee landowners' perceptions of white-tailed deer (Odocoileus virginianus) damage to crops, their tolerance for damage and the effectiveness of damage control methods. Fifty-five percent of landowners had wildlife damage and 47% had deer damage. The majority had light or moderate damage. The majority of participants who had taken measures to prevent damage used hunting. State-issued depredation permits were rated the most effective method of controlling damage. Although most survey participants did not have substantial deer damage, landowners with serious deer damage problems may need further assistance.

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Radio-Telemetry And Geographical Information Systems To Assess Urban Deer Zoonoses, Karmen M. Hollis, Christopher L. Anchor, James E. Chelsvig, Dwayne R. Etter, J. P. Dubey, Richard E. Warner, Laura L. Hungerford Oct 2000

Radio-Telemetry And Geographical Information Systems To Assess Urban Deer Zoonoses, Karmen M. Hollis, Christopher L. Anchor, James E. Chelsvig, Dwayne R. Etter, J. P. Dubey, Richard E. Warner, Laura L. Hungerford

Wildlife Damage Management Conference Proceedings

Urban white-tailed deer (Odocoileus virginianus) populations can influence the epidemiology of many zoonotic diseases because they affect the distribution and abundance of pathogens and vectors. The risk of emerging zoonotic pathogens increases with human populations, as people have closer contact with wildlife in urban environments. We used radio-telemetry to study deer behavior and population dynamics in Chicago, IL. We monitored home-range use and habitat patterns for 43 radio-collared deer from 2 study sites, 1995-1999. Deer serology was conducted to test for various zoonotic diseases, such as babesiosis, encephalitis, and toxoplasmosis for 12 study locations. To analyze potential disease exposures for …

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Behavioral Observations And Physiological Implications For White-Tailed Deer Treated With Two Different Immunocontraceptives, Gary J. Killian, Lowell A. Miller Oct 2000

Behavioral Observations And Physiological Implications For White-Tailed Deer Treated With Two Different Immunocontraceptives, Gary J. Killian, Lowell A. Miller

Wildlife Damage Management Conference Proceedings

The results of a 6-year behavioral study of white-tailed deer (Odocoileus Virginianus) treated with two immunocontraceptive vaccines, porcine zona pellucida (PZP) and gonadotropin releasing hormone (GnRH) are summarized. Does were immunized late summer and early fall. In November, does were exposed to bucks and observations were made 2-3 times daily for one half hour through the end of February. Does were considered to be in estrus when they were the object of intensive sexual interest by the buck. Compared to controls, PZP-treated does had a significantly lower fawning rate and an increase in the average number of estrous cycles observed …

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Resolving Conflicts With Canada Geese: An Animal Welfare Perspective, John Hadidian, Michele Childs, Nancy Perry, Patricia Lane Oct 2000

Resolving Conflicts With Canada Geese: An Animal Welfare Perspective, John Hadidian, Michele Childs, Nancy Perry, Patricia Lane

Wildlife Damage Management Conference Proceedings

The scope and significance of human conflicts with urban and suburban Canada goose populations has been growing rapidly since the mid 1980s. A lack of basic understanding about the biology and ecology of locally abundant goose populations has led, in part, to argument between opposing camps over the appropriate approaches and methodologies to resolve human-goose conflicts. Animal welfare interests have focused on the humaneness of roundup and slaughter programs, and advocated non-lethal approaches coupled with what they view as the more benign population control activity of egg addling. Some traditional wildlife managers have argued that non-lethal approaches have been tried …

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A Comparison Of Grass Covers And Meadow Vole Populations In North Carolina, William T. Sullivan, John G. Vandenbergh Oct 2000

A Comparison Of Grass Covers And Meadow Vole Populations In North Carolina, William T. Sullivan, John G. Vandenbergh

Wildlife Damage Management Conference Proceedings

Meadow vole (Microtus pennsylvanicus) populations were monitored in an experimental field for three years by mark and recapture in western North Carolina. The field was planted with 3 different species of grasses: Ky 31 fescue (Festuca arundinacea L.), blue grass (Poa protensis L.), and creeping red fescue {Festuca rubra L.). Voles were free to range from grass to grass due to adjacent plots in the design. Vole populations were highest in Ky 31 and blue grass, and lowest in creeping red fescue. Meadow voles strongly preferred Ky 31 fescue, a grass with high moisture content and a growth pattern compatible …

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Suburban Goose Management: Insights From New York State, Bryan L. Swift Oct 2000

Suburban Goose Management: Insights From New York State, Bryan L. Swift

Wildlife Damage Management Conference Proceedings

New York State Department of Environmental Conservation (DEC) conducted studies in suburban Rockland County, New York during 1993-2000 to help local officials develop strategies to alleviate conflicts associated with local-nesting or "resident" Canada geese {Branta canadensis). Annual counts indicated a relatively stable population of approximately 2,500-3,000 resident geese in the county, far fewer than anecdotal reports suggested. Counts tended to increase in towns where there was little or no goose management, whereas numbers declined in towns with active goose management efforts (i.e., egg-addling, capture and removal, or use of border collies). Egg-addling programs did not result in immediate reduction of …

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Evaluations Of Nicarbazin-Treated Pellets For Reducing The Laying And Viability Of Canada Goose Eggs, Kurt C. Vercauteren, Michael J. Pipas, Kenneth L. Tope Oct 2000

Evaluations Of Nicarbazin-Treated Pellets For Reducing The Laying And Viability Of Canada Goose Eggs, Kurt C. Vercauteren, Michael J. Pipas, Kenneth L. Tope

Wildlife Damage Management Conference Proceedings

The number of Canada geese (Branta canadensis) nesting in the United States is increasing rapidly, generating more complaints and problems associated with them. Overabundant geese can be a nuisance, threaten human health and safety, and cause damage to property. Nicarbazin (NCZ), a coccidiostat used in chicken production, has been documented to reduce egg production and viability. The reduction of reproduction through the use of NCZ could be a valuable aspect of an overall integrated goose management plan. We conducted studies at 5 sites in Nebraska in spring 2000 to evaluate the efficacy of NCZ-treated pellets for reducing the laying and …

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Variation Of White-Tailed Deer Home Ranges In Fragmented Urban Habitats Around Chicago, Illinois, Brian P. Piccolo, Karmen M. Hollis, Richard E. Warner, Timothy R. Van Deelen, Dwayne R. Etter, Chris Anchor Oct 2000

Variation Of White-Tailed Deer Home Ranges In Fragmented Urban Habitats Around Chicago, Illinois, Brian P. Piccolo, Karmen M. Hollis, Richard E. Warner, Timothy R. Van Deelen, Dwayne R. Etter, Chris Anchor

Wildlife Damage Management Conference Proceedings

Behavior of white-tailed deer (Odocoileus virginianus) has been studied extensively in refuges and agricultural regions, although little research has focused on deer in urban environments. Dramatic urbanization and development fragments habitat available for wildlife species and deer densities often exceed ecosystem carrying capacity in remnant natural areas. This may impact deer social behavior and spatial home range patterns. We radio-marked 21 female white-tailed deer in the Des Plaines and Palos Forest Preserves near Chicago, Illinois to study spatial use of deer relative to conditions in urban forest preserves. Telemetry locations were collected once per week and included both day and …

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Effects Of Intense Deer Herbivory On The Herbaceous Understory At Trillium Trail, Tiffany Knight, Susan Kalisz, Lisa Smith, Joann Davis Oct 2000

Effects Of Intense Deer Herbivory On The Herbaceous Understory At Trillium Trail, Tiffany Knight, Susan Kalisz, Lisa Smith, Joann Davis

Wildlife Damage Management Conference Proceedings

Due to a synergism of many human-mediated factors, white-tailed deer (Odocoileus virginianus) populations have increased dramatically throughout many forests throughout the northeastern North America over the last 50 years. The increase in deer populations negatively impacts plants through a variety of mechanisms, which can include increased consumption, trampling, and soil compaction. To preserve the plants in our forests, managers need to understand both how increases in the deer population impact the overall plant community as well as the individual plant species within the community. In general, the impact of deer presence on the overall plant community has been studied by …

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Urban Crow Roosts - A Nationwide Phenomenon?, W. Paul Gorenzel, Terrell P. Salmon, Gary D. Simmons, Bob Barkhouse, Mark P. Quisenberry Oct 2000

Urban Crow Roosts - A Nationwide Phenomenon?, W. Paul Gorenzel, Terrell P. Salmon, Gary D. Simmons, Bob Barkhouse, Mark P. Quisenberry

Wildlife Damage Management Conference Proceedings

We conducted surveys of federal officials nationwide and of local officials in California to determine historical and temporal aspects, location, size, and control of American crow (Corvus brachyrhynchos) urban roosts. The national survey consisted of a 2-page questionnaire sent via email to United States Department of Agriculture Wildlife Services state directors representing the lower 48 states. The California survey consisted of a 3-page questionnaire mailed by the League of California Cities to 473 towns and cities and an email inquiry sent to Agriculture Commissioners in 29 counties. In the national survey respondents in 27 of 39 states identified 86 urban …

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Double-Crested Cormorant Satellite Telemetry: Preliminary Insight, Scott J. Werner, D. Tommy King, David E. Wooten Oct 2000

Double-Crested Cormorant Satellite Telemetry: Preliminary Insight, Scott J. Werner, D. Tommy King, David E. Wooten

Wildlife Damage Management Conference Proceedings

Migratory paths of North American waterbirds have traditionally been evaluated by relocating birds banded as nestlings. Although over 8,000 banded Double-crested Cormorants (Phalacrocorax auritus) have been recovered in North America since 1923, the movements of wintering and breeding cormorants remain poorly understood. We initiated a satellite telemetry study to determine the annual and regional distributions of 25 cormorants (in each of two study years) captured near primary aquaculture areas in Alabama, Arkansas, Louisiana, and Mississippi. Preliminary data suggest that cormorants generally remained near aquaculture facilities where they were captured, marked, and released. Two cormorants, however, emigrated from primary aquaculture areas …

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Effectiveness Of Anise As A Coyote Lure, Coren P. Jagnow, Russ Mason Oct 2000

Effectiveness Of Anise As A Coyote Lure, Coren P. Jagnow, Russ Mason

Wildlife Damage Management Conference Proceedings

Odors are frequently used to attract coyotes (Canis latrans) to control devices. Coyote olfactory perception is vital to effectively manage depredation of livestock by coyotes because of the importance of volatile cues to this species. Lures are usually chosen to reflect the biological needs of coyotes as well as relying on food-seeking behaviors to elicit attraction. Anise (Illicum verum) was chosen as the stimulus because of its attractiveness to dogs and its common use as an ingredient in animal foods. Plants comprise a large part of coyotes' diets during warm weather; therefore, a plant odor was chosen to find an …

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Field Evaluation Of A Visual Barrier To Discourage Gull Nesting, Patricia A. Pochop, John L. Cummings, Richard M. Engeman Oct 2000

Field Evaluation Of A Visual Barrier To Discourage Gull Nesting, Patricia A. Pochop, John L. Cummings, Richard M. Engeman

Wildlife Damage Management Conference Proceedings

Expanding gull populations along the Columbia River have been implicated in depredations to threatened and endangered migrating salmon smolt, depredations to agriculture crops, bird-aircraft strike hazards, nuisance problems, and potential threats to public health. In an effort to develop management methods for controlling gull populations, we tested a visual barrier to discourage gulls from nesting on an island in the Columbia River. The barrier material is a woven black polypropylene fabric that we utilized to take advantage of the gulls' innate predator avoidance mechanisms, by removing their line of sight to approaching terrestrial predators while providing no protection from aerial …

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Overabundant Deer: Better Management Through Research, Dwayne R. Etter, Timothy R. Van Deelen, Daniel R. Ludwig, Karmen M. Hollis, James E. Chelsvig, Richard E. Warner Oct 2000

Overabundant Deer: Better Management Through Research, Dwayne R. Etter, Timothy R. Van Deelen, Daniel R. Ludwig, Karmen M. Hollis, James E. Chelsvig, Richard E. Warner

Wildlife Damage Management Conference Proceedings

Overabundance of white-tailed deer (Odocoileus virginianus) continues to challenge wildlife professionals nationwide, especially in urban settings. Moreover, wildlife managers often lack general site-specific information on deer movements, survival, and reproduction that are critical for management planning. We conducted radio-telemetry research concurrent with deer culling in forest preserves in northeastern Illinois and used empirical data to construct predictive population models. We culled 2,826 deer from 16 forest preserves in DuPage County (1992-1999) including 1,736 from the 10 km2 Waterfall Glen Forest Preserve. We also radio-marked 129 deer from 8 preserves in DuPage and adjacent Cook County (1994-1998). Recruitment was inversely associated …

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