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University of Nebraska - Lincoln

2000

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Articles 61 - 90 of 567

Full-Text Articles in Physical Sciences and Mathematics

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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Conditioning And Habituation Of White-Tailed Deer To Two Common Deterrents, George R. Gallagher, Jennifer L. Peacock, Elizabeth P. Garner, Robert H. Prince Oct 2000

Conditioning And Habituation Of White-Tailed Deer To Two Common Deterrents, George R. Gallagher, Jennifer L. Peacock, Elizabeth P. Garner, Robert H. Prince

Wildlife Damage Management Conference Proceedings

It was hypothesized white-tailed deer {Odocoileus virginianus) could be readily conditioned to 2 commonly used deterrents, Deer-Away® Big Game Repellent (BGR) and blood meal (BM). Plots were randomly assigned BGR, BM and control. Free-ranging deer were initially conditioned to forage for corn at each 49m2 bare earth plots delivered at 0500 hr and 1600 hr by programmable sling-type feeders. Hoof prints were counted within a 3.7m2 sample area of each plot to quantify activity. Following preconditioning, data were collected during 5, 5-day periods. Application of BGR and BM to their respective bare earth plots occurred during periods 2,4 and 5. …

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Conference Participants Oct 2000

Conference Participants

Wildlife Damage Management Conference Proceedings

Conference Participants at The Ninth Wildlife Damage Management Conference, Oct 5-8, 2000 State College, PA USA

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Nanostructured Fept:B2O3 Thin Films With Perpendicular Magnetic Anisotropy, C.P. Luo, Sy_Hwang Liou, L. Gao, Yi Liu, David J. Sellmyer Oct 2000

Nanostructured Fept:B2O3 Thin Films With Perpendicular Magnetic Anisotropy, C.P. Luo, Sy_Hwang Liou, L. Gao, Yi Liu, David J. Sellmyer

Sy-Hwang Liou Publications

FePt/B2O3 multilayers were deposited by magnetron sputtering onto 7059 glass substrates. By annealing the as-deposited films at 550 °C, nanostructured FePt:B2O3 films consisting of FePt grains with L10 structure, embedded in a glassy B2O3 matrix, were obtained. The c axes of the FePt grains can be made to align with the film normal direction, which results in a perpendicular anisotropy constant of 3.5×107 erg/cc. The films remain layered structures after annealing when the B2O3 layer thickness exceeds 16 Å. The nanostructure of the films was investigated by …

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Announcements: Fall 2000 Oct 2000

Announcements: Fall 2000

Drought Network News (1994-2001)

Contents:

2000 National Disaster Medical System Conference

Management Strategies to Mitigate Drought in the Mediterranean: Monitoring, Risk Analysis and Contingency Planning

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Potential Use Of Noaa/Avhrr Satellite Data For Monitoring Environmental Change In Turkey, Ali Umran Komuscu Oct 2000

Potential Use Of Noaa/Avhrr Satellite Data For Monitoring Environmental Change In Turkey, Ali Umran Komuscu

Drought Network News (1994-2001)

In Turkey, desertification has been taking place in areas of low rainfall and minimal vegetative cover. In particular, the central, eastern, and southeastern parts of the country are vulnerable to desertification because of erosion, deforestation, and degradation of vegetative cover. Rivers of those regions are characterized by very high sediment yields. Nearly 60% of the country’s soils are subjected to severe erosion and approximately 450 million tons of sediment are carried to rivers each year. Meanwhile, wind erosion has been a very effective desertification process in central and southeastern parts of the country, where annual rainfall varies around 400–500 mm/year. …

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Workshop On Drought-Related Issues In Fars Province, Iran: Critical Points And Resolutions, M. J. Nazemosadat, S. Amin, A. A. Kamgare-Haghighi, D. Khalili Oct 2000

Workshop On Drought-Related Issues In Fars Province, Iran: Critical Points And Resolutions, M. J. Nazemosadat, S. Amin, A. A. Kamgare-Haghighi, D. Khalili

Drought Network News (1994-2001)

As a result of the occurrence of overwhelming severe drought over most parts of the Islamic Republic of Iran, an educational/professional workshop on drought issues was held at the College of Agriculture, Shiraz University in Iran, October 18–19, 2000. The workshop was sponsored by the College of Agriculture, the office of Fars Provincial Government, the Agricultural Bank, and Shiraz Abfa Company. The workshop was mainly focused on the assessment of drought impacts and severity in Fars province, in the southern part of Iran.

The inauguration ceremony was attended by some of the parliament members (from Fars province), the Chancellor of …

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Improving Drought Early Warning Systems In The Context Of Drought Preparedness And Mitigation, Donald A. Wilhite, M. V. K. Sivakumar, Deborah Wood Oct 2000

Improving Drought Early Warning Systems In The Context Of Drought Preparedness And Mitigation, Donald A. Wilhite, M. V. K. Sivakumar, Deborah Wood

Drought Network News (1994-2001)

Effective drought early warning systems are an integral part of efforts worldwide to improve drought preparedness. Timely and reliable data and information must be the cornerstone of effective drought policies and plans. In pursuit of the goal of improving the effectiveness of drought early warning systems, participants of the experts meeting were asked to address three fundamental questions:

1. What is your assessment of the current status of drought early warning systems?
2. What are the shortcomings, limitations, and needs for drought early warning systems?
3. How can drought early warning systems be improved to better support drought preparedness and …

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Using The Spi To Monitor The 1999-2000 Drought In Northeastern Argentina, Roberto Zanvettor, Andres Ravelo Oct 2000

Using The Spi To Monitor The 1999-2000 Drought In Northeastern Argentina, Roberto Zanvettor, Andres Ravelo

Drought Network News (1994-2001)

Drought risk is a major concern across many regions of Argentina because precipitation is extremely variable. One of these regions, the Pampas, is the main agricultural and livestock production area, extending over 60 million hectares. This region was recently surveyed to detect, monitor, and assess the occurrence of drought using a network of 27 meteorological stations and the Standardized Precipitation Index (SPI), developed by McKee et al. (1993). The SPI has various categories that define drought intensities. A period is considered humid when the SPI value is greater than +1 and a period is considered dry when the value of …

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Water Current, Volume 32, No. 5, October 2000 Oct 2000

Water Current, Volume 32, No. 5, October 2000

Water Current Newsletter

NU Researchers Track Endangered and Threatened Sturgeon in Platte River
From the Director: Promises and Challenges of Embarking on New Journeys and Looking in New Directions
Meet the Faculty: F. Edwin (Ed) Harvey; Steven D. (Steve) Comfort
Eleventh Platte River Basin Ecosystem Symposium to be Held in Kearney February 27-28
Water Sciences Laboratory Completes Creighton Groundwater Study
Utility Deregulation Could Have Unforeseen Impacts on Water Resources and Ecosystems
Irrigation Well Data Available on the Internet
Jess Named Associate Director of NU Conservation and Survey Division
Festival of Color 2000
Water News Briefs
Great Plains Natural Resources Journal
CSREES Grant to …

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From The Director: Fall 2000, Donald A. Wilhite Oct 2000

From The Director: Fall 2000, Donald A. Wilhite

Drought Network News (1994-2001)

The NDMC hosted the first annual “Drought Monitor Forum” in November. Most of the readers of Drought Network News are probably aware of the Drought Monitor web site (http://enso.unl.edu/ monitor/index.html) and the products that are provided to users. (Mark Svoboda of the NDMC provided an overview of the Drought Monitor product in the Winter/Spring 2000 issue of Drought Network News.) This weekly product, jointly produced by the NDMC, U.S. Department of Agriculture, and NOAA’s Climate Prediction Center, has been widely accepted in the United States, and other countries are considering the adoption of a similar technique for mapping drought …

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Correlations Between Burrowing Owl And Black-Tailed Prairie Dog Declines: A 7-Year Analysis, Martha J. Desmond, Julie A. Savidge, Kent M. Eskridge Oct 2000

Correlations Between Burrowing Owl And Black-Tailed Prairie Dog Declines: A 7-Year Analysis, Martha J. Desmond, Julie A. Savidge, Kent M. Eskridge

School of Natural Resources: Faculty Publications

Concern over the status of species associated with prairie dog colonies has increased with the recent proposed listing of black-tailed prairie dogs (Cynomys ludovicianus). We monitored burrowing owl (Athene cunicularia) populations and prairie dog densities in 17 black-tailed prairie dog colonies in the Nebraska panhandle between 1990 and 1996. All prairie dog colonies were controlled at least once during the study. We observed a 63% decline in nesting pairs of burrowing owls and significant declines in burrow densities. Results indicated a time lag in owl response to changes in active burrow densities. However, in the later …

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