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Factors Affecting Space Use Overlap By White-Tailed Deer In An Urban Landscape, W. David Walter, Jeff Beringer, Lonnie P. Hansen, Justin W. Fischer, Joshua J. Millspaugh, Kurt C. Vercauteren

United States Department of Agriculture Wildlife Services: Staff Publications

Variation in the size and overlap of space use by white-tailed deer (Odocoileus virginianus) has broad implications for managing deer–human conflicts and disease spread and transmission in urban landscapes. Understanding which factors affect overlap of home range by various segments (i.e., age, sex) of an urban deer population has implications to direct contact between deer on disease epidemiology. We assessed size of home range and overlap of space use using the volume of intersection index (VI) for deer in an urban landscape by sex, age, season, and time of day. We found mean space use was larger for …

Persistent Infection Or Successive Reinfection Of Deer Mice With Bartonella Vinsonii Subsp. Arupensis, Ying Bai, Charles H. Calisher, Michael Y. Kosoy, J. Jeffrey Root, Jeffrey B. Doty

United States Department of Agriculture Wildlife Services: Staff Publications

Bartonella infections are common in rodents. From 1994 to 2006, longitudinal studies of a rodent community, consisting mainly of deer mice (Peromyscus maniculatus), were conducted in southwestern Colorado to study hantaviruses. Blood samples from deer mice captured one or more times during the period 2003 to 2006 (n = 737) were selected to study bartonellae in deer mice. Bartonellae were found to be widely distributed in that population, with an overall prevalence of 82.4% (607/737 mice). No correlation was found between bartonella prevalence and deer mouse weight or sex. Persistent or successive infections with bartonellae were observed …

Is Wildlife Going To The Dogs? Impacts Of Feral And Free-Roaming Dogs On Wildlife Populations, Julie K. Young, Kirk A. Olson, Richard P. Reading, Sukh Amgalanbaatar, Joel Berger

United States Department of Agriculture Wildlife Services: Staff Publications

In human-populated landscapes, dogs (Canis familiaris) are often the most abundant terrestrial carnivore. However, dogs can significantly disrupt or modify intact ecosystems well beyond the areas occupied by people. Few studies have directly quantified the environmental or economic effects of free-roaming and feral dogs. Here, we review wildlife-dog interactions and provide a case study that focuses on interactions documented from our research in Mongolia to underscore the need for studies designed to best determine how dogs affect native wildlife and especially imperiled populations. We suggest additional research, public awareness campaigns, and the exclusion of dogs from critical wildlife …

Integrative Approaches To Disease Control: The Value Of International Collaborations, Thomas J. Deliberto, Dale L. Nolte, William (Bill) H. Clay

United States Department of Agriculture Wildlife Services: Staff Publications

One health and biodiversity issues are global and complex. As such, they require international collaboration if we hope to achieve the goal of minimizing disease impacts on humans and animals, while maintaining biodiversity and ecosystem integrity. This will require motivated teams to overcome barriers to collaboration, by focusing on the proven keys to success and developing networks of biological, physical and social scientists as well as decision-makers and stakeholders. These collaborations will require facilitation by governments and international organizations.

Finally, we must move towards a more holistic, transdisciplinary approach to international collaborations. New forms of knowledge, institutional structure and problem-solving …

Rock Pigeon Use Of Livestock Facilities In Northern Colorado: Implications For Improving Farm Bio-Security., James C. Carlson, Larry Clark, Michael F. Antolin, M. D. Salman

United States Department of Agriculture Wildlife Services: Staff Publications

Rock pigeons (Columba livia) have been implicated in the spread of pathogens within commercial livestock facilities. Currently, there is no data characterizing pigeon habitat use and movement patterns within and among commercial livestock facilities. To better understand the capacity for pigeons to spread pathogens, we used radio-telemetry techniques to estimate the home-range, travel distance, activity, and habitat use of pigeons roosting on and off dairies and feedlots in western Weld County, Colorado. Our observations suggest that pigeons roosting on (resident) and off (nonresident) livestock facilities use habitat differently. Nonresident pigeons used larger home-range areas than did resident pigeons. Nonresident pigeons …

Baylisascariasis Fact Sheet, Emily L. Blizzard

United States Department of Agriculture Wildlife Services: Staff Publications

Fact Sheet compiled by: Emily L. Blizzard

Sheet completed on: May 27, 2011

Fact Sheet Reviewed by: Sarah Bevins, Kerri Pedersen, and Michael J. Yabsley

Susceptible animal groups Avian, Mammal, Human

Causative organism

Recognized species of Baylisascaris

Parasite Primary Definitive Host(s)

Distribution

Incubation period

Clinical signs

Post mortem, gross, or histologic findings

Diagnosis

Material required for laboratory analysis

Relevant diagnostic laboratories

Treatment

Prevention and control

Suggested disinfectant for housing facilities

Notification

Measures required under the Animal Disease Surveillance Plan

Measures required for introducing animals to infected animal

Conditions for restoring disease-free status after an outbreak None

Experts who may be …

Pituophis Catenifer Deserticola (Great Basin Gophersnake) Predation, Steven J. Wamback, Richard M. Engeman

United States Department of Agriculture Wildlife Services: Staff Publications

A variety of taxa have been observed to· prey upon Pituophis catenifer, including mammals, birds-of prey, and other snakes. Here, we describe an unusual two-day observation of predation on a mature Great Basin gophersnake by a brown trout (Salmo trutta).

The observation took place in Jones Canyon, Utah, USA, on the grounds of the Jones Hole National Fish Hatchery (JHNFH). Jones Creek' emanates from springs at the head of Jones Canyon on hatchery grounds, and flows north to south 6.4 km to the Green River, approximately paralleling the Utah-Colorado border. The stream runs for about 0.3 km …

Impacts Of Generalist Mesopredators On The Demography Of Small-Mammal Populations In Fragmented Landscapes, Timothy S. Eagan Ii, James C. Beasley, Zachary H. Olson, Olin E. Rhodes Jr.

United States Department of Agriculture Wildlife Services: Staff Publications

Abstract: A consequence of the reduction and subsequent fragmentation of native habitats has been the loss or severe reduction of specialist predator populations from these altered ecosystems, resulting in a “release” of generalist predators. Demographic aspects of small-rodent populations, especially predator-driven density cycles, have been extensively studied. However, the majority of studies examining predator–prey dynamics have been conducted in relatively undisturbed ecosystems, while more limited data are available for regions that have been greatly modified by human settlement. Using raccoons (Procyon lotor (L., 1758)) and white-footed mice (Peromyscus leucopus (Rafinesque, 1818)) as focal species, we used an …

The Need To Quantify Ecosystem Services Provided By Birds, Daniel G. Wenny, Travis L. Devault, Matthew D. Johnson, Dave Kelly, Cagan H. Sekercioglu, Diana F. Tomback, Christopher J. Whelan

United States Department of Agriculture Wildlife Services: Staff Publications

What are the birds worth--what is their actual dollar value to human society? To most of us in the ornithological community, birds are invaluable. But in these times we need more specific rationales to convince policy makers and business leaders to include bird conservation in land-use and development decisions. Over the past two decades, awareness of our dependence on a variety of ecosystem services (natural ecological processes that benefit human society) and of their importance and prevalence has progressed toward the goal of making conservation a mainstream value. Building strategies for the protection of ecosystem services into conservation and land-use …

Partitioning Of Anthropogenic Watering Sites By Desert Carnivores., Todd C. Atwood, Tricia L. Fry, Bruce Leland

United States Department of Agriculture Wildlife Services: Staff Publications

We investigated the role of water features as focal attractors for gray foxes (Urocyon cinereoargenteus), coyotes (Canis latrans), and bobcats (Felis rufus) in west Texas to determine if they were foci for interspecific interaction. Mixed effects models indicated that species partitioned use of water features spatially and temporally. Linear models indicated factors influencing relative activity at water features varied by species. For coyotes and bobcats, the water availability model, containing days since last rainfall and nearest-neighbor distance to water was best supported by the data, with relative activity increasing with time between rainfall and distance between waters. For gray foxes, …

Efficacy Of European Starling Control To Reduce Salmonella Enterica Contamination In A Concentrated Animal Feeding Operation In The Texas Panhandle, James C. Carlson, Richard M. Engeman, Doreene R. Hyatt, Rickey L. Gilliland, Thomas J. Deliberto, Larry Clark, Michael J. Bodenchuck, George M. Linz

United States Department of Agriculture Wildlife Services: Staff Publications

Background: European starlings (Sturnus vulgaris) are an invasive bird species known to cause damage to plant and animal agriculture. New evidence suggests starlings may also contribute to the maintenance and spread of diseases within livestock facilities. Identifying and mitigating the risk pathways that contribute to disease in livestock is necessary to reduce production losses and contamination of human food products. To better understand the impact starlings have on disease transmission to cattle we assessed the efficacy of starling control as a tool to reduce Salmonella enterica within a concentrated animal feeding operation. We matched a large facility, slated for operational …

The Role Of Starlings In The Spread Of Salmonella Within Concentrated Animal Feeding Operations, James C. Carlson, Alan B. Franklin, Doreene R. Hyatt, Susan E. Pettit, George M. Linz

United States Department of Agriculture Wildlife Services: Staff Publications

1. Characterizing and mitigating the disease risks associated with wildlife use of concentrated animal feeding operations (CAFOs) can reduce the spread of micro-organisms throughout the environment while increasing agricultural productivity. To better understand the disease risks associated with bird use of CAFOs, we assessed the capacity of European starlings Sturnus vulgaris to spread Salmonella enterica to cattle, their feed and water.

2. We sampled starlings, cattle feed, cattle water and cattle faeces from 10 CAFOs in Texas, USA. Samples were screened for Salmonella enterica to investigate: (i) the prevalence of S. enterica in starlings using CAFOs, (ii) whether there was …

Rodents And Other Vertebrate Invaders In The United States, Michael W. Fall, Michael L. Avery, Tyler A. Campbell, Peter J. Egan, Richard M. Engeman, David Pimentel, William C. Pitt, Stephanie A. Shwiff, Gary W. Witmer

United States Department of Agriculture Wildlife Services: Staff Publications

Contents

Introduction

Assessing impacts of rodents and other vertebrate invaders

Accounts of some important vertebrate invaders
Norway rat (Rattus norvegicus)
Roof rat (Rattus rattus)
Polynesian rat (Rattus exulans)
House mouse (Mus Musculus)
Nutria (Myocastor coypus)
Gambian giant pouched rat (Cricetomys gambianus)
Feral swine (Sus scofa)
Small Indian Mongoose (Herpestes javanicus)
Rock pigeon (Columba livia)
House sparrow (Passer domesticus)
European starling (Sturnus vulgaris)
Monk parakeet (Myiopsitta monachus)
Brown tree snake (Boiga irregularis)
Burmese python (Python …

The Relative Abundance Of Deer Mice With Antibody To Sin Nombre Virus Corresponds To The Occurrence Of Hantavirus Pulmonary Syndrome In Nearby Humans, Charles H. Calisher, James N. Mills, J. Jeffrey Root, Jeffrey B. Doty, Barry J. Beaty

United States Department of Agriculture Wildlife Services: Staff Publications

Sin Nombre virus (SNV) is the principal cause of hantavirus pulmonary syndrome (HPS) in the United States and deer mice (Peromyscus maniculatus) are its principal rodent host, and thus the natural cycle of the virus is related to the occurrence of HPS. Prevalence of rodent infection appears to be associated with fluctuations in deer mouse populations and, indirectly, with timing and amount of precipitation, a complex of biologic events. Given that rodent population abundances fluctuate, often acutely, it is not unreasonable to assume a direct correlation between the numbers of infected rodents and the number of human infections, …

Movements Of White-Tailed Deer In Riparian Habitat: Implications For Infectious Diseases, Gregory M. Clements, Scott E. Hygnstrom, Jason M. Gilsdorf, David M. Baasch, Myndi J. Clements, Kurt C. Vercauteren

United States Department of Agriculture Wildlife Services: Staff Publications

Movements of male white-tailed deer (Odocoileus virginianus) are of great concern with respect to spread of chronic wasting disease (CWD) across landscapes because most yearlings males disperse and adult males have higher prevalence of CWD than do females and younger deer. We radio-collared and monitored 85 male white-tailed deer in the middle Missouri River Valley of eastern Nebraska and western Iowa, USA from 2004 to 2008. Average size (±SE) of fixed-kernel annual home ranges (95%) and core areas (50%) for resident deer were 449 (±32) ha and 99 (±7) ha, respectively. Resident deer exhibited a high degree of …

Nilgai Antelope In Northern Mexico As A Possible Carrier For Cattle Fever Ticks And Babesia Bovis And Babesia Bigemina., E M. Cardenas-Canales, J. Alfonso Ortega-Santos, Tyler A. Campbell, Zeferino Garcia-Vaquez, Antonio Cantu-Covarrubias, Julio V. Figueroa-Millian, Randy W. Deyoung, David G. Hewitt, Fred C. Bryant

United States Department of Agriculture Wildlife Services: Staff Publications

Of 20 blood samples from nilgais from Me´ xico, five were polymerase chain reaction-positive for Babesia bigemina and one for Babesia bovis. Positive samples had the expected 170 (B. bigemina) and 291 (B. bovis) base pairs and were identical to Gen-Bank B. bigemina accession S45366 and B. bovis M38218.

Absence Of Mycobacterium Bovis In Feral Swine (Sus Scrofa) From The Southern Texas Border Region., Tyler A. Campbell, David B. Long, Luiz R. Bazan, Bruce V. Thomsen, Suelee Robbe-Austerman, Ronald B. Davey, Liza A. Soliz, Seth Swafford, Kurt C. Vercauteren

United States Department of Agriculture Wildlife Services: Staff Publications

Free-ranging wildlife, such as feral swine (Sus scrofa), harbor a variety of diseases that are transmissible to livestock and could negatively impact agricultural production. Information is needed regarding the exposure and infection rates of Mycobacterium bovis and many other diseases and parasites in feral swine occurring in the Texas border region. Our main objective was to determine exposure rates and possible infection rates of M. bovis in feral swine by opportunistically sampling animals from the Texas border region. From June to September 2010, we obtained samples from 396 feral swine and tested 98 samples for M. bovis by histopathology and …

Chapter 13: Development Of A National Early Detection System For Highly Pathogenic Avian Influenza In Wild Birds In The United States Of America, Thomas J. Deliberto, Seth R. Swafford, Kyle R. Van Why

United States Department of Agriculture Wildlife Services: Staff Publications

It is generally recognized that countries conducting comprehensive disease surveillance in wildlife populations are more likely to understand the epidemiology of specific infectious pathogens and zoonotic disease outbreaks (1, 2). These countries are better equipped and prepared to develop solutions that will protect humans, agriculture, and wildlife. Consequently, active surveillance for diseases of animal or public health concern in wildlife is particularly beneficial to national and international interests. The World Organization for Animal Health (OIE) encourages all countries to develop and maintain wildlife disease surveillance systems, which complement and support human health and agricultural animal disease programs. These systems should …

Hematozoa And A New Haemoproteid Species From Cathartidae (New World Vulture) In South Carolina, Ellis C. Greiner, Alan M. Fedynich, Stephen L. Webb, Travis L. Devault, Olin E. Rhodes Jr.

United States Department of Agriculture Wildlife Services: Staff Publications

A survey of turkey vultures (Cathartes aura) in South Carolina revealed the presence of a novel haemoproteid. Haemoproteus catharti n. sp. is described from the slides developed from the blood of this vulture. The new species is a thick, halteridial form with complete margins, and is considered distinct from the other recognized haemoproteids from the diurnal raptors in shape, pigment number, parasite outline, and host-family specificity. While reviewing blood films, a series of unusual immature schizonts of Plasmodium sp. were also observed, and these are illustrated, along with another distinct haemoproteid from old slides of poor quality produced …

Modifying Elk (Cervus Elaphus) Behavior With Electric Fencing At Established Fence-Lines To Reduce Disease Transmission Potential, Justin W. Fischer, Gregory E. Phillips, David M. Baasch, Michael J. Lavelle, Kurt C. Vercauteren

United States Department of Agriculture Wildlife Services: Staff Publications

Direct and indirect contact through fences at cervid farms with only a single perimeter fence may play a role in transmission of diseases such as chronic wasting disease or bovine tuberculosis (Mycobacterium bovis). We report a case study examining effectiveness of a baited electric fence, as an addition to an existing single woven-wire fence (2.4 m high), for altering behavior and reducing fence-line contact between elk (Cervus elaphus). We used a video-surveillance system to monitor one 20-m-long test fence at an elk ranch in north-central Colorado, USA from 2006 to 2007. We conducted 26 trials (11 …

Health Effects Of Gnrh Immunocontraception Of Wild White-Tailed Deer In New Jersey, James P. Gionfriddo, Anthony J. Denicola, Lowell A. Miller, Kathleen A. Fagerstone

United States Department of Agriculture Wildlife Services: Staff Publications

We evaluated the health effects of GonaCon™ Immunocontraceptive Vaccine in individual white-tailed deer (Odocoileus virginianus) on a fully fenced corporate office campus in suburban New Jersey, USA. We captured and vaccinated adult females, fawns of both sexes, and yearling and adult males, and evaluated their health status through field and necropsy observations, assessment of blood chemistry, and histopathological examination of selected tissues. One 1.0-mL intramuscular injection of vaccine was delivered by hand to the hind limb of each GonaCon-treated deer. Control deer received sham injections (ad F) or no injections (yearling and ad M). Mean body-condition scores of …

Evaluation Of Fences For Containing Feral Swine Under Simulated Depopulation Conditions, Michael J. Lavelle, Kurt C. Vercauteren, Hefley, Gregory E. Phillips, Scott Hygnstrom, David B. Long, Justin W. Fischer, Seth R. Swafford, Tyler A. Campbell

United States Department of Agriculture Wildlife Services: Staff Publications

Populations of feral swine (Sus scrofa) are estimated to include >2 million animals in the state of Texas, USA, alone. Feral swine damage to property, crops, and livestock exceeds $50 million annually. These figures do not include the increased risks and costs associated with the potential for feral swine to spread disease to domestic livestock. Thus, effective bio-security measures will be needed to quickly isolate affected feral swine populations during disease outbreaks. We evaluated enclosures built of 0.86-m-tall traditional hog panels for containing feral swine during 35 trials, each involving 6 recently caught animals exposed to increasing levels …

Regulated Commercial Harvest To Manage Overabundant White-Tailed Deer: An Idea To Consider?, Kurt C. Vercauteren, Charles W. Anderson, Timothy R. Van Deelen, David Drake, W. David Walter, Stephen Vantassel, Scott E. Hygnstrom

United States Department of Agriculture Wildlife Services: Staff Publications

Declines in hunter recruitment coupled with dramatic growth in numbers of white-tailed deer (Odocoileus virginianus) have challenged our ability to manage deer populations through regulated hunting. We review the efficacy of current regulated hunting methods and explain how they are unable to reduce deer numbers sufficiently in some environments. Regulated commercial harvest would provide an additional tool to help state wildlife agencies manage overabundant populations of white-tailed deer. We outline potential means to govern regulated commercial deer harvest and explain how it is compatible with the North American Model of Wildlife Conservation. We identified several benefits, including reduced …

Body Lice, Yersinia Pestis Orientalis, And Black Death, Mark Welford, Brian Bossak, Robert G. Mclean, Michael W. Fall, Michel Drancourt, Didier Raoult

United States Department of Agriculture Wildlife Services: Staff Publications

Letters exchanged on role of Y. pestis in European plague Black Death.

Our colleague and mentor David E. Davis researched and wrote in his retirement after years of research and reflection on rat ecology and rodent-borne diseases (3,4). Rattus rattus is commonly recognized as the vertebrate host of fl ea-borne plague that swept through Europe in the 1300s, killing >50% of the population. Davis believed this explanation did not fit what he knew of the ecologic requirements of fleas and black rats. He studied reports of archeologic excavations and reviewed poems, medieval bestiaries, and paintings and concluded that these rats …

Shedding And Serologic Responses Following Primary And Secondary Inoculation Of House Sparrows (Passer Domesticus) And European Starlings (Sturnus Vulgaris) With Low-Pathogenicity Avian Influenza Virus, Nicole M. Nemeth, Nicholas O. Thomas, Darcy S. Orahood, Theodore D. Anderson, Paul T. Oesterle

United States Department of Agriculture Wildlife Services: Staff Publications

Waterfowl and shorebirds are well-recognized natural reservoirs of low-pathogenicity avian influenza viruses (LPAIV); however, little is known about the role of passerines in avian influenza virus ecology. Passerines are abundant, widespread, and commonly come into contact with free-ranging birds as well as captive game birds and poultry. We inoculated and subsequently challenged house sparrows (Passer domesticus) and European starlings (Sturnus vulgaris) with wild-bird origin LPAIV H3N8 to evaluate their potential role in transmission. Oropharyngeal shedding was short lived, and was detected in more starlings (97.2%) than sparrows (47.2%; n = 36 of each). Cloacal shedding was …

Epizootiologic Survey Of Mycobacterium Bovis In Wildlife And Farm Environments In Northern Michigan, Gary W. Witmer, Amanda E. Fine, James Gionfriddo, Michael Pipas, Kirk Shively, Kim Piccolo, Patrick Burke

United States Department of Agriculture Wildlife Services: Staff Publications

Bovine tuberculosis (bovine TB), caused by Mycobacterium bovis, has reemerged in northern Michigan, USA, with detections in white-tailed deer (Odocoileus virginianus) in 1994 and in cattle in 1998. Since then, significant efforts have been directed toward reducing deer densities in the area in the hopes of reducing the bovine TB prevalence rate in deer and eliminating spillover of the disease into cattle. Despite the success of the efforts to reduce deer densities, additional cattle herds have become infected. Other mammals can be infected with M. bovis, and some carnivores and omnivores had been found to be infected with …

Comparison Of Endocrine Response To Stress Between Captive-Raised And Wild-Caught Bighorn Sheep, Sarah Coburn, Mo Salman, Jack Rhyan, Thomas Keefe, Matthew Mccollum, Keith Aune, Terry Spraker, Lowell Miller

United States Department of Agriculture Wildlife Services: Staff Publications

Stress hormones in Rocky Mountain bighorn sheep (Ovis canadensis canadensis), produced in response to environmental changes, road development, or high population density, may impact their immune systems to a threshold level that predisposes them to periodic, large-scale mortality. We compared the stress response to a novel environmental situation and repeated handling between bighorn sheep born and raised in captivity (CR) and bighorn sheep born in the wild (WC) and brought into captivity. We measured plasma epinephrine, norepinephrine, cortisol, and fecal glucocorticoid metabolites (FGM). Three weeks after each group’s arrival we used a one-time drop-net event to elicit an …

Antibodies To Influenza And West Nile Viruses In Horses In Mexico, M. A. Loroño-Pino, J. A. Farfan-Ale, J. E. Garcia-Rejon, M. Lin, E. Rosado-Paredes, F. I. Puerto, A. Bates, J. J. Root, A. B. Franklin, H. J. Sullivan, B. J. Blitvich

United States Department of Agriculture Wildlife Services: Staff Publications

INFLUENZA A virus (IAV) (family Orthomyxoviridae) is a highly infectious respiratory pathogen of birds and mammals, including human beings and horses (Palese and Shaw 2007). The virus is classified into different subtypes based on the antigenic properties of the haemagglutinin (HA) and neuraminidase (NA) proteins. Sixteen HA subtypes (H1 to H16) and nine NA subtypes (N1 to N9) have been identified (Fouchier and others 2005). Two subtypes, H3N8 and H7N7, have been isolated from horses. The H7N7 subtype was first isolated from a horse in Czechoslovakia in 1956 (Prague/56) (Sovinova and others 1958), and the H3N8 subtype was first isolated …

Evolving Analyses Of The Shoshone River Skunk Rabies Epizootic In Wyoming, Craig A. Ramey, Kenneth H. Mills, Justin W. Fischer

United States Department of Agriculture Wildlife Services: Staff Publications

A rabies epizootic occurred in striped skunks from 1988-1993 in a previously rabies-free area of northwestern Wyoming. USDA APHIS Wildlife Services (WS) cooperated with state and local officials by providing a rabies monitoring and depopulation program starting in 1990. Wyoming WS asked for assistance in 1991 from the National Wildlife Research Center (NWRC) to analyze the epizootic’s movements. The goal was to address the public’s concerns about their health and safety and that of their domestic animals and livestock. All rabid skunks were diagnosed by the Wyoming State Veterinary Laboratory (WSVL) using standardized fluorescent antibody testing of brain tissues. The …

Feral Swine Behavior Relative To Aerial Gunning In Southern Texas, Tyler A. Campbell, David Long, Bruce Leland

United States Department of Agriculture Wildlife Services: Staff Publications

Feral swine (Sus scrofa) impact resources through their destructive feeding behavior, competition with native wildlife, and impacts to domestic animal agriculture. We studied aerial gunning on feral swine to determine if aerial gunning altered home range and core area sizes, distances between home range centroids, and distances moved by surviving individuals. We collected data before, during, and after aerial gunning in southern Texas. Using Global Positioning System collars deployed on 25 adult feral swine at 2 study sites, we found home range and core area sizes did not differ before and after aerial gunning. However, feral swine moved …