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Articles 1081 - 1110 of 1812
Full-Text Articles in Animal Sciences
The Director's Desk It’S A Bear Market For Research, Johan T. Du Toit
The Director's Desk It’S A Bear Market For Research, Johan T. Du Toit
Human–Wildlife Interactions
No abstract provided.
Trans Fatty Acids Provide Evidence Of Anthropogenic Feeding By Black Bears, Gregory W. Thiemann, Randal S. Stahl, Sharon Baruch-Mordo, Stewart W. Breck
Trans Fatty Acids Provide Evidence Of Anthropogenic Feeding By Black Bears, Gregory W. Thiemann, Randal S. Stahl, Sharon Baruch-Mordo, Stewart W. Breck
Human–Wildlife Interactions
Bears (Ursus spp.) that become conditioned to anthropogenic food sources pose a risk to human safety and generally need to be relocated, rehabilitated, or destroyed. Identifying food-conditioned bears may be difficult if the animal is not captured or killed while immediately engaged in the nuisance behavior. Fatty acid signature analysis has been used to examine the dietary habits of bears and other carnivores and is based on the predictable incorporation of ingested fatty acids into the consumer’s fat stores. Unusual fatty acids that are available in only a few food types may be particularly useful dietary markers. In this …
Modeling Wildlife Damage To Crops In Northern Indiana, Mónica I. Retamosa, Lee A. Humberg, James C. Beasley, Olin E. Rhodes Jr.
Modeling Wildlife Damage To Crops In Northern Indiana, Mónica I. Retamosa, Lee A. Humberg, James C. Beasley, Olin E. Rhodes Jr.
Human–Wildlife Interactions
Comprehensive information on crop damage by wildlife species is critical if effective strategies for controlling wildlife damage are to be formulated. Discriminating how landscape composition and configuration attributes influence crop damage is important for implementing landscape management techniques to resolve human–wildlife conflicts. We analyzed crop damage data from 100 corn fields and 60 soybean fields located in the Upper Wabash River Basin of northern Indiana during 2003 and 2004. We used negative binomial regression to model the rate of damage to corn and soybean crops in response to local and landscape variables. Rate of crop damage was best predicted by …
Mammalian Hazards At Small Airports In Indiana: Impact Of Perimeter Fencing, Travis L. Devault, Jacob E. Kubel, David J. Glista, Olin E. Rhodes Jr.
Mammalian Hazards At Small Airports In Indiana: Impact Of Perimeter Fencing, Travis L. Devault, Jacob E. Kubel, David J. Glista, Olin E. Rhodes Jr.
Human–Wildlife Interactions
Fences are used at many airports and small airfields to exclude wildlife from entering critical areas. However, not all fences exclude hazardous mammals reliably, and effective fences can be too expensive for small airports to purchase and maintain. In this study, we evaluated fencing at 10 small airports in Indiana and documented the presence and relative abundance of wildlife within airport boundaries using remote cameras and spotlight surveys. Only 4 airports were completely fenced, and four were Odocoileusvirginianus) or coyotes (Canis latrans) at nine of the airports with remote cameras and during spotlight surveys. There were …
Use Of A Population Viability Analysis To Evaluate Human-Induced Impacts And Mitigation For The Endangered Lower Keys Marsh Rabbit, David H. Lafever, Paige M. Schmidt, Neil D. Perry, Craig A. Faulhaber, Roel R. Lopez, Nova J. Silvy, Elizabeth A. Forys
Use Of A Population Viability Analysis To Evaluate Human-Induced Impacts And Mitigation For The Endangered Lower Keys Marsh Rabbit, David H. Lafever, Paige M. Schmidt, Neil D. Perry, Craig A. Faulhaber, Roel R. Lopez, Nova J. Silvy, Elizabeth A. Forys
Human–Wildlife Interactions
Rapid development and urbanization of the lower Florida Keys in the last 30 years has fragmented the habitat of the Lower Keys marsh rabbit (Sylvilagus palustris hefneri), hereafter called marsh rabbit, and threatened it with extinction. On the Naval Air Station–Key West (NAS), Boca Chica Key, marsh rabbits exist as a meta-population of discrete habitat patches in a matrix of wetlands and airfield facilities. Airfield safety regulations require NAS to maintain vegetation below a minimum height on runway peripheries (clear zones). We developed a spatially-explicit, stage-structured, stochastic matrix model using the programs RAMAS-Metapop and ArcGIS. Model parameters were …
Editor's Introduction Safe Driving Suggestions For Deer Country, Michael R. Conover
Editor's Introduction Safe Driving Suggestions For Deer Country, Michael R. Conover
Human–Wildlife Interactions
No abstract provided.
The Soap Box Avoiding The Blame Game In Managing Problem Black Bears, Michael L. Wolfe
The Soap Box Avoiding The Blame Game In Managing Problem Black Bears, Michael L. Wolfe
Human–Wildlife Interactions
No abstract provided.
Assessment Of Costs Associated With Deer–Vehicle Collisions: Human Death And Injury, Vehicle Damage, And Deer Loss, John A. Bissonette, Christine A. Kassar, Lawrence J. Cook
Assessment Of Costs Associated With Deer–Vehicle Collisions: Human Death And Injury, Vehicle Damage, And Deer Loss, John A. Bissonette, Christine A. Kassar, Lawrence J. Cook
Human–Wildlife Interactions
Collisions between large vertebrates and vehicles along roadways are an increasing concern, not only because of ecological consequences, but also because of associated economic and social costs. We used a large-scale, long-term data set comprising several databases from Utah to summarize and analyze these costs. The overall cost for 13,020 collisions from 1996 to 2001 in Utah was approximately $45,175,454, resulting in an estimated average per year cost of about $7,529,242 and a mean collision cost of $3,470. These figures include human fatality costs of $24 million (53% of total costs); vehicle damage costs of $18 million (39%); loss of …
Landscape And Traffic Factors Influencing Deer–Vehicle Collisions In An Urban Enviroment, Janet W. Ng, Charlene Nielsen, Colleen Cassady St. Clair
Landscape And Traffic Factors Influencing Deer–Vehicle Collisions In An Urban Enviroment, Janet W. Ng, Charlene Nielsen, Colleen Cassady St. Clair
Human–Wildlife Interactions
Deer–vehicle collisions (DVCs) are steadily increasing across North America. The increase is particularly pronounced in urban green spaces where deer (Odocoileus spp.) populations and road densities are high. In the greater city of Edmonton, Alberta, Canada, 333 DVCs occurred from 2002 to 2004. To identify landscape and traffic correlates of these collisions, we built 3 statistical models. The first model assessed the importance of local variables and was based on a spatial precision of the nearest intersection to which collisions were referenced. The second model was based on landscape characteristics and used the nearest township intersection to aggregate collisions. …
Sharpshooting Suburban White-Tailed Deer Reduces Deer–Vehicle Collisions, Anthony J. Denicola, Scott C. Williams
Sharpshooting Suburban White-Tailed Deer Reduces Deer–Vehicle Collisions, Anthony J. Denicola, Scott C. Williams
Human–Wildlife Interactions
Too many deer–vehicle collisions (DVCs) are one of the primary reasons local governments implement lethal deer management programs. However, there are limited data to demonstrate that a reduction in deer (Odocoileus spp.) densities will result in a decline in DVCs. We conducted sharpshooting programs in 3 suburban communities to reduce deer numbers and to address rising DVCs. Annual or periodic population estimates were conducted using both helicopter snow counts and aerial infrared counts to assess population trends. Management efforts were conducted from 3 to 7 years. Local deer herds were reduced by 54%, 72%, and 76%, with resulting reductions …
Factors Affecting Road Mortality Of White-Tailed Deer In Eastern South Dakota, Troy W. Grovenburg, Jonathan A. Jenks, Robert W. Klaver, Kevin L. Monteith, Dwight H. Galster, Ron J. Schauer, Wilbert W. Morlock, Joshua A. Delger
Factors Affecting Road Mortality Of White-Tailed Deer In Eastern South Dakota, Troy W. Grovenburg, Jonathan A. Jenks, Robert W. Klaver, Kevin L. Monteith, Dwight H. Galster, Ron J. Schauer, Wilbert W. Morlock, Joshua A. Delger
Human–Wildlife Interactions
White-tailed deer (Odocoileus virginianus) mortalities (n = 4,433) caused by collisions with automobiles during 2003 were modeled in 35 counties in eastern South Dakota. Seventeen independent variables and 5 independent variable interactions were evaluated to explain deer mortalities. A negative binomial regression model (Ln Y = 1.25 – 0.12 [percentage tree coverage] + 0.0002 [county area] + 5.39 [county hunter success rate] + 0.0023 [vehicle proxy 96–104 km/hr roads], model deviance = 33.43, χ2 = 27.53, df = 27) was chosen using a combination of a priori model selection and AICc. Management options include use of the model …
Physiological Effects Of Gonadotropin-Releasing Hormone Immunocontraception On White-Tailed Deer, Paul D. Curtis, Milo E. Richmond, Lowell A. Miller, Fred W. Quimby
Physiological Effects Of Gonadotropin-Releasing Hormone Immunocontraception On White-Tailed Deer, Paul D. Curtis, Milo E. Richmond, Lowell A. Miller, Fred W. Quimby
Human–Wildlife Interactions
Before immunocontraceptives can be considered safe to use on wildlife species, potential health risks should be assessed. Gonadotropin-releasing hormone (GnRH) immunocontraceptive has successfully reduced fertility of white-tailed deer (Odocoileus virginianus); however, associated deer physiology has rarely been examined. We conducted gross necropsy examinations, histology, and blood chemistry comparisons on euthanized deer previously vaccinated with immunogenic GnRH (n = 18 females and n = 4 males), or left as untreated controls (n = 7 females and n = 6 males). Granulomas were found at injection sites of most deer, even 3 years post-treatment. There were no significant …
Gnrh Immunocontraception Of Male And Female White-Tailed Deer Fawns, Lowell A. Miller, James P. Gionfriddo, Jack C. Rhyan, Kathleen A. Fagerstone, Donald C. Wagner, Gary J. Killian
Gnrh Immunocontraception Of Male And Female White-Tailed Deer Fawns, Lowell A. Miller, James P. Gionfriddo, Jack C. Rhyan, Kathleen A. Fagerstone, Donald C. Wagner, Gary J. Killian
Human–Wildlife Interactions
Immunocontraceptive vaccines based on gonadotropin-releasing hormone (GnRH) have been tested in adult white-tailed deer (Odocoileus virginianus), but their effects on fawns are unknown. The purpose of this study was to determine if early immunization against GnRH would induce a long-lasting immune response in fawns, and if it would delay or prevent sexual development. We gave primary and subsequent booster injections of a KLH-GnRH/Freund’s vaccine to 6 male and 6 female fawns. This vaccine contained the same active ingredients as GonaCon™ vaccine, but it contained Freund’s adjuvant instead of AdjuVac™ adjuvant. Two 450-μg injections were given 1 month apart …
Book Review Urban Wildlife Management, Jennifer Lynch
Book Review Urban Wildlife Management, Jennifer Lynch
Human–Wildlife Interactions
No abstract provided.
Book Review The Double-Crested Cormorant: Issues And Management, Valerie M. Burton
Book Review The Double-Crested Cormorant: Issues And Management, Valerie M. Burton
Human–Wildlife Interactions
No abstract provided.
In The News, Joe N. Caudell
The Soap Box Resolving Conflicts Between Humans And The Threatened Louisiana Black Bear, Walter Cotton
The Soap Box Resolving Conflicts Between Humans And The Threatened Louisiana Black Bear, Walter Cotton
Human–Wildlife Interactions
No abstract provided.
The Soap Box Help Me, I Need To Know, Roger D. Applegate
The Soap Box Help Me, I Need To Know, Roger D. Applegate
Human–Wildlife Interactions
No abstract provided.
From The Field Conflicts Between Local Villagers And Tibetan Brown Bears Threaten Conservation Of Bears In A Remote Region Of The Tibetan Plateau, Fiona R. Worthy, J. Marc Foggin
From The Field Conflicts Between Local Villagers And Tibetan Brown Bears Threaten Conservation Of Bears In A Remote Region Of The Tibetan Plateau, Fiona R. Worthy, J. Marc Foggin
Human–Wildlife Interactions
No abstract provided.
Evaluation Of An Oral Vaccination Program To Control Raccoon Rabies In A Suburbanized Landscape, Jason R. Boulanger, Laura L. Bigler, Paul D. Curtis, Donald H. Lein, Arthur J. Lembo Jr.
Evaluation Of An Oral Vaccination Program To Control Raccoon Rabies In A Suburbanized Landscape, Jason R. Boulanger, Laura L. Bigler, Paul D. Curtis, Donald H. Lein, Arthur J. Lembo Jr.
Human–Wildlife Interactions
We evaluated the efficacy of an oral rabies vaccination (ORV) program conducted in Erie County, New York, from July through September, 2002–2005. Ingress of the raccoon (Procyon lotor) rabies variant first occurred along the southern border of Erie County, New York, during 1992 and began to spread northward at a velocity of 31 km/year. Fixed-wing aircraft dropped ORV baits in rural landscapes; helicopters, hand baiting, and bait stations distributed baits in suburban landscapes (x̄ bait densities ranged 59–118 baits/km2). Our study objectives were to quantify rabies case densities, evaluate efficacy of intervention efforts, and determine biological, …
Population And Spatial Dynamics Of Resident Canada Geese In Southeastern Nebraska, Scott R. Groepper, P. Joseph Gabig, Mark P. Vrtiska, Jason M. Gilsdorf, Scott E. Hygnstrom, Larkin A. Powell
Population And Spatial Dynamics Of Resident Canada Geese In Southeastern Nebraska, Scott R. Groepper, P. Joseph Gabig, Mark P. Vrtiska, Jason M. Gilsdorf, Scott E. Hygnstrom, Larkin A. Powell
Human–Wildlife Interactions
In response to increasing populations, damage complaints, and a desire to understand population and spatial dynamics, we studied population size, survival rates, home ranges, movements, and site fidelity of female resident Canada geese (Branta canadensis) at 18 study sites within 23 km of Lincoln, Nebraska, during 1991–1994. Based on mean flock size (x̄ = 93) and number of collared geese in flocks (x̄ = 13), the estimated population of resident Canada geese was nearly 4,000. Estimated monthly survival for female Canada geese was 0.94, mean home range was 25 km2, and mean maximum distance moved between …
In Memory Paul Eugene Bucklin, Kraig L. Glazier
In Memory Paul Eugene Bucklin, Kraig L. Glazier
Human–Wildlife Interactions
No abstract provided.
The Director's Desk Echinacea And Deer Whistles: Science And Trust In The Wildlife Arena, Ben C. West
The Director's Desk Echinacea And Deer Whistles: Science And Trust In The Wildlife Arena, Ben C. West
Human–Wildlife Interactions
No abstract provided.
Deer–Vehicle Collision Prevention Techniques, Lauren L. Mastro, Michael R. Conover, S. Nicole Frey
Deer–Vehicle Collision Prevention Techniques, Lauren L. Mastro, Michael R. Conover, S. Nicole Frey
Human–Wildlife Interactions
Every year in the United States approximately 1.5 million deer–vehicle collisions (DVCs) occur resulting in >29,000 human injuries, >200 human fatalities, 1.3 million deer fatalities, and >1 billion dollars worth of property damage. Despite the magnitude of this problem, there are relatively few well-designed studies that have evaluated techniques that can be used to reduce DVCs. Techniques to reduce DVCs fall into 4 categories: reducing the number of deer (Odocoileus spp.), reducing the number of vehicles, modifying deer behavior, and changing motorist behavior. Techniques to reduce the number of deer include decreasing the deer population or excluding deer from …
Demographics Of Non-Hunted White-Tailed Deer Populations In Suburban Areas, Anthony J. Denicola, Dwayne R. Etter, Thomas Almendinger
Demographics Of Non-Hunted White-Tailed Deer Populations In Suburban Areas, Anthony J. Denicola, Dwayne R. Etter, Thomas Almendinger
Human–Wildlife Interactions
Burgeoning deer populations in urban and suburban areas, along with the inherent problems stemming from this increase, are becoming increasingly widespread. To address these problems, wildlife biologists need quality baseline data of herd composition for harvest and treatment forecasts for management and fertility control research programs. In this study, we provide white-tailed deer (Odocoileus virginianus) population data from 4 areas where localized suburban white-tailed deer populations were substantially reduced utilizing sharpshooting as a management tool. In each area, legal hunting was nonexistent for >10 years preceding the sharpshooting program. The areas ranged in size from 300 ha to …
Deer–Vehicle Collision Statistics And Mitigation Information: Online Sources, Terry A. Messmer, Destiny R. Messmer
Deer–Vehicle Collision Statistics And Mitigation Information: Online Sources, Terry A. Messmer, Destiny R. Messmer
Human–Wildlife Interactions
Although good data are lacking, published estimates suggest that >1.5 million deer– vehicle collisions (DVCs) occur annually in the United States. The estimated losses exceed 1 billion dollars. In some states, DVCs are a major cause of reportable accidents. Federal, state, and private partners have cooperated in monitoring trends in DVCs and implementing mitigation measures. Most of this information about such measures is readily available via the Internet. The purpose of this paper is to provide the reader with a broad overview of and a guide to the information currently available online to mitigate DVCs.
The Director's Desk Misconceptions Hamper Protection Of Bears, Bruce D. Leopold
The Director's Desk Misconceptions Hamper Protection Of Bears, Bruce D. Leopold
Human–Wildlife Interactions
No abstract provided.
Commentary Impacts Of The Black Bear Supplemental Feeding Program On Ecology In Western Washington, Georg J. Ziegltrum
Commentary Impacts Of The Black Bear Supplemental Feeding Program On Ecology In Western Washington, Georg J. Ziegltrum
Human–Wildlife Interactions
No abstract provided.
Effects Of Aversive Conditioning On Behavior Of Nuisance Louisiana Black Bears, Jennifer Leigh, Michael J. Chamberlain
Effects Of Aversive Conditioning On Behavior Of Nuisance Louisiana Black Bears, Jennifer Leigh, Michael J. Chamberlain
Human–Wildlife Interactions
Complaints associated with nuisance activity by Louisiana black bears (Ursus americanus luteolus) in south Louisiana have steadily increased since 2000, demanding intervention by state and federal agencies. As a federally threatened species, Louisiana black bears that are a nuisance require nonlethal management, referred to as aversive conditioning. We used rubber buckshot and dogs to test the effectiveness of management techniques used by the state of Louisiana to deter nuisance bear activity. We captured 11 bears in residential and industrial areas where nuisance bear activity was reported. We fitted bears with radiotransmitting collars and released them within 2 km …
How People Should Respond When Encountering A Large Carnivore: Opinions Of Wildlife Professionals, Dylan E. Brown, Michael R. Conover
How People Should Respond When Encountering A Large Carnivore: Opinions Of Wildlife Professionals, Dylan E. Brown, Michael R. Conover
Human–Wildlife Interactions
We conducted telephone surveys of wildlife professionals who work with large carnivores to ask their opinions about how people should respond to avoid being injured when confronted by a black bear (Ursus americana), grizzly bear (Ursus arctos), mountain lion (Puma concolor), or gray wolf (Canis lupus). The respondents agreed that the most appropriate response was to try to increase the distance between a person and the carnivore. In the event of an attack by a black bear, mountain lion, or wolf, most respondents said to fight back. Opinion was divided over the …