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2012

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Articles 721 - 750 of 948

Full-Text Articles in Animal Sciences

Rehg Studies Monkeys To Better Understand Humans, Aldemaro Romero Jr. Jan 2012

Rehg Studies Monkeys To Better Understand Humans, Aldemaro Romero Jr.

Publications and Research

No abstract provided.


Schulz Investigates Threat Of Invasive Species, Aldemaro Romero Jr. Jan 2012

Schulz Investigates Threat Of Invasive Species, Aldemaro Romero Jr.

Publications and Research

No abstract provided.


Annual Variation In Timing, Orientation And Effects Of Weather On Jefferson Salamander (Ambystoma Jeffersonianum) And Spotted Salamander (Ambystoma Maculatum) Movements In Central Kentucky, Christopher James St. Andre Jan 2012

Annual Variation In Timing, Orientation And Effects Of Weather On Jefferson Salamander (Ambystoma Jeffersonianum) And Spotted Salamander (Ambystoma Maculatum) Movements In Central Kentucky, Christopher James St. Andre

Online Theses and Dissertations

Annual variation in temporal and spatial patterns of amphibian migration and dispersal are poorly understood. To address this issue, a circular drift fence was installed around an ephemeral pond at the Central Kentucky Wildlife Management Area, Madison County, Kentucky. The pond was checked daily for salamander movements from 17 January 2010 to 26 September 2010 and from 26 January 2011 to 3 August 2011, which corresponded to the activity season. Weather variables examined in relation to amphibian movements included barometric pressure, cumulative precipitation, temperature and relative humidity. Several species used the ephemeral pond during the study but few successfully reproduced. …


Nocturnal Habitat Selection During Spring Migration By American Woodcock (Scolopax Minor) In Central Kentucky, Andrew K. Newman Jan 2012

Nocturnal Habitat Selection During Spring Migration By American Woodcock (Scolopax Minor) In Central Kentucky, Andrew K. Newman

Online Theses and Dissertations

American woodcock (Scolopax minor) have experienced long-term population declines due to habitat loss. While significant research has occurred on breeding and wintering grounds, little is known about spring migratory ecology. This study assessed nocturnal roosting habitat of American woodcock through the use of night spotlighting techniques. The study was conducted on the Blue Grass Army Depot and the Central Kentucky Wildlife Management Area, both located in Madison County, Kentucky. A total of 84 field, 421 ha, of four habitat types, burned, grazed, hayed, old/fallow, were searched for woodcock. Roost sites were marked and the vegetation of each site was compared …


Effect Of Predator Type, Season, Brood Size, And West Nile Virus Infection On The Nest Defense Behavior Of Male And Female Eastern Bluebirds, Kayde Lynn Gilbert Jan 2012

Effect Of Predator Type, Season, Brood Size, And West Nile Virus Infection On The Nest Defense Behavior Of Male And Female Eastern Bluebirds, Kayde Lynn Gilbert

Online Theses and Dissertations

The intensity of nest defense by birds can be influenced by many factors, including a parent's sex, brood size, stage of breeding season, type of predator, and physical condition. Because previous studies have produced conflicting results concerning the effects of these factors on the nest defense behavior of birds, additional studies are needed to better clarify how and why such factors influence behavior. No one to date has examined the possible effect of a viral infection on avian nest defense behavior. Thus, my objectives were to determine the effect of adult sex, brood size, stage of the breeding season, predator …


Population Distribution And Demographics Of Smallmouth Bass (Micropterus Dolomieu) In Silver Creek, Madison County, Kentucky, Justin Daniel Basham Jan 2012

Population Distribution And Demographics Of Smallmouth Bass (Micropterus Dolomieu) In Silver Creek, Madison County, Kentucky, Justin Daniel Basham

Online Theses and Dissertations

The objective of this study was to determine the population distribution and demographics of smallmouth bass Micropterus dolomieu in Silver Creek, Madison Co, KY. The stream was electro-shocked at 19 locations during the Fall of 2011 and Spring of 2012. At each stream site width (m), depth (m), flow (m/s), and percentage of substrate type pool, riffle, run was recorded across transects as the microhabitat. Kentucky Division of Water's rapid habitat assessment was used to assess the habitat within the stream and the riparian vegetation surrounding the stream. The majority of smallmouth bass collected in Silver Creek were collected in …


Space Use And Habitat Selection By Bobcats In Southeastern Kentucky, Andrea Joy Shipley Jan 2012

Space Use And Habitat Selection By Bobcats In Southeastern Kentucky, Andrea Joy Shipley

Online Theses and Dissertations

Population estimation and trend analyses are critically important for sustainable harvest and management of many species. The bobcat (Lynx rufus) plays important ecological and economic roles in Kentucky as a furbearer and mesopredator. I conducted a study of the bobcat in southeastern Kentucky as a twenty year follow-up to research conducted in the same study area. I radio-collared five (4F, 1M) bobcats and assessed space and habitat use patterns. Mean annual minimum convex polygon (MCP) home range size for all bobcats was 14.7 km2 (n = 5, SE = 3.9 km2), and 22.2 km2 (n = 5, SE = 7.5 …


Estimation Of Variance Components And Genetic Parameters For Type Traits And Milk Yield In Holstein Cattle, Serdar Duru, Salahatti̇n Kumlu, Erdoğan Tuncel Jan 2012

Estimation Of Variance Components And Genetic Parameters For Type Traits And Milk Yield In Holstein Cattle, Serdar Duru, Salahatti̇n Kumlu, Erdoğan Tuncel

Turkish Journal of Veterinary & Animal Sciences

This research was conducted to estimate variance components and genetic parameters for type traits and milk yield in Holstein-Friesian cattle. In this study, 597 daughters of 158 sires in 128 herds were classified. In the data analysis, type scores for 354 daughters bred within 70 herds sired by 46 sires that had at least 3 daughters, and 304 lactation records for 206 daughters within 56 herds sired by 37 sires, were considered. For estimation of variance components and correlations among the traits, the MTDFREML package program was used. The mean stature was 145.56 cm. Means for linear traits varied from …


Government Of Western Australia Department Of Fisheries Annual Report To The Parliament 2011/12, Government Of Western Australia Fisheries Department Jan 2012

Government Of Western Australia Department Of Fisheries Annual Report To The Parliament 2011/12, Government Of Western Australia Fisheries Department

Department of Fisheries Annual Reports

This annual report provides an overview of the Department and its operations for the financial year ended 30 June 2012. It has been prepared in accordance with the requirements of the Financial Management Act 2006, the Fish Resources Management Act 1994 and the Public Sector Commission’s Annual reporting framework – 2011/12 reporting year.

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Do Clark’S Nutcrackers Demonstrate What-Where-When Memory On A Cache-Recovery Task?, Kristy L. Gould, Amy J. Ort, Alan C. Kamil Jan 2012

Do Clark’S Nutcrackers Demonstrate What-Where-When Memory On A Cache-Recovery Task?, Kristy L. Gould, Amy J. Ort, Alan C. Kamil

Avian Cognition Papers

What-where-when (WWW) memory during cache recovery was investigated in six Clark’s nutcrackers. During caching, both red- and blue-colored pine seeds were cached by the birds in holes filled with sand. Either a short (3 day) retention interval (RI) or a long (9 day) RI was followed by a recovery session during which caches were replaced with either a single seed or wooden bead depending upon the color of the cache and length of the retention interval. Knowledge of what was in the cache (seed or bead), where it was located, and when the cache had been made (3 or 9 …


A New Species Of Molinema (Nematoda: Onchocercidae) In Bolivian Rodents And Emended Description Of Litomosoides Esslingeri Bain, Petit, And Diagne, 1989, Juliana Notarnicola, F. Agustin Jimenez Ruiz, Scott Lyell Gardner Jan 2012

A New Species Of Molinema (Nematoda: Onchocercidae) In Bolivian Rodents And Emended Description Of Litomosoides Esslingeri Bain, Petit, And Diagne, 1989, Juliana Notarnicola, F. Agustin Jimenez Ruiz, Scott Lyell Gardner

Harold W. Manter Laboratory of Parasitology: Faculty Publications

We report the distribution of 2 species of filarioid nematodes occurring in different hosts in the central region of South America. Molinema boliviensis n. sp. was recorded as a parasite of sigmodontine and echymyid rodents in Bolivia, and Litomosoides esslingeri was recorded in sigmodontine and ctenomyid rodents from Bolivia and Argentina. Molinema boliviensis n. sp. shares several similarities with other species reported in spiny rats; however, it can be easily differentiated by the presence of a flat anterior end, gradually tapering lappets and a tubercle present in posterior end, a short, uniform buccal capsule, an oval-shaped vagina vera, and a …


A New Genus And Species Of Lungworm (Nemata: Metastrongyloidea) From Akodon Mollis Thomas, 1894 (Rodentia: Cricetidae) In Peru, Maria Elizabeth Morales, Scott Lyell Gardner, John E. Ubelaker Jan 2012

A New Genus And Species Of Lungworm (Nemata: Metastrongyloidea) From Akodon Mollis Thomas, 1894 (Rodentia: Cricetidae) In Peru, Maria Elizabeth Morales, Scott Lyell Gardner, John E. Ubelaker

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Akodonema luzsarmientae n.g., n.sp. (Nemata: Metastrongyloidea) is described from the pulmonary arteries and heart from several individuals of "soft grass mouse," Akodon mollis (Rodentia: Cricetidae), collected in the region of Ancash, Peru. The new genus and species is distinguished by a reduction of the dorsal ray to two small widely separated papillae.


New Species Of Arostrilepis (Eucestoda: Hymenolepididae) In Members Of Cricetidae And Geomyidae (Rodentia) From The Western Nearctic, Arseny A. Makarikov, Scott Lyell Gardner, Eric P. Hoberg Jan 2012

New Species Of Arostrilepis (Eucestoda: Hymenolepididae) In Members Of Cricetidae And Geomyidae (Rodentia) From The Western Nearctic, Arseny A. Makarikov, Scott Lyell Gardner, Eric P. Hoberg

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Specimens originally identified as Arostrilepis horrida from the Nearctic are revised, contributing to the recognition of a complex of cryptic species distributed across the Holarctic region. Previously unrecognized species are described based on specimens in cricetid (Neotominae) and geomyid rodents. Arostrilepis mariettavogeae n. sp. in Peromyscus californicus from Monterey County, California, and Arostrilepis schilleri n. sp. in Thomomys bulbivorus from Corvallis, Oregon, are characterized. Consistent with recent studies defining diversity in the genus, form, size, and spination (pattern, shape, and size) of the cirrus are diagnostic; species are further distinguished by the relative position and length of the cirrus sac …


Discovery And Description Of The "Davtiani" Morphotype For Teladorsagia Boreoarcticus (Trichostrongyloidea: Ostertagiinae) Abomasal Parasites In Muskoxen, Ovibos Moschatus, And Caribou, Rangifer Tarandus, From The North American Arctic: Implications For Parasite Faunal Diversity, Eric P. Hoberg, Arthur Abrams, Patricia A. Pilitt, Susan J. Kutz Jan 2012

Discovery And Description Of The "Davtiani" Morphotype For Teladorsagia Boreoarcticus (Trichostrongyloidea: Ostertagiinae) Abomasal Parasites In Muskoxen, Ovibos Moschatus, And Caribou, Rangifer Tarandus, From The North American Arctic: Implications For Parasite Faunal Diversity, Eric P. Hoberg, Arthur Abrams, Patricia A. Pilitt, Susan J. Kutz

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Collections to explore helminth diversity among free-ranging ungulates in the North American Arctic revealed the occurrence of a third male, or "davtiani," morphotype for Teladorsagia boreoarcticus. Designated as T. boreoarcticus forma (f.) minor B, the males occurred with T. boreoarcticus f. major and T. borearcticus f. minor A in endemic populations of muskoxen (Ovibos moschatus wardi) and barrenground caribou (Rangifer tarandus groenlandicus) on Victoria Island, Nunavut, Canada, and in muskoxen and Peary caribou (Rangifer tarandus pearyi) on Banks Island, Northwest Territories, Canada. These specimens differ from conspecific morphotypes in the structure …


Genetic Diversity Of Neotropical Myotis (Chiroptera: Vespertilionidae) With An Emphasis On South American Species, Roxanne J. Larsen, Michelle C. Knapp, Hugh H. Genoways, Faisal Ali Anwarali Khan, Peter A. Larsen, Don E. Wilson, Robert J. Baker Jan 2012

Genetic Diversity Of Neotropical Myotis (Chiroptera: Vespertilionidae) With An Emphasis On South American Species, Roxanne J. Larsen, Michelle C. Knapp, Hugh H. Genoways, Faisal Ali Anwarali Khan, Peter A. Larsen, Don E. Wilson, Robert J. Baker

University of Nebraska State Museum: Mammalogy Papers

Background: Cryptic morphological variation in the Chiropteran genus Myotis limits the understanding of species boundaries and species richness within the genus. Several authors have suggested that it is likely there are unrecognized species-level lineages of Myotis in the Neotropics. This study provides an assessment of the diversity in New World Myotis by analyzing cytochrome-b gene variation from an expansive sample ranging throughout North, Central, and South America. We provide baseline genetic data for researchers investigating phylogeographic and phylogenetic patterns of Myotis in these regions, with an emphasis on South America.

Methodology and Principal Findings: Cytochrome-b sequences were …


Efficacies Of Fenbendazole And Albendazole In The Treatment Of Commercial Turkeys Artificially Infected With Ascaridia Dissimilis, Jessica Perkins, Tom Yazwinski, Chris Tucker Jan 2012

Efficacies Of Fenbendazole And Albendazole In The Treatment Of Commercial Turkeys Artificially Infected With Ascaridia Dissimilis, Jessica Perkins, Tom Yazwinski, Chris Tucker

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

The goal of this research was to determine the extent of resistance that turkey roundworms, Ascaridia dissimilis, have developed to anti-parasitic chemicals used in commercial poultry operations. Roundworm infections in turkeys have resulted in monetary losses for the poultry industry for years, generally due to poor feed conversion. The infection itself is subclinical and many turkeys have a light to moderate worm burden. Since parasitisms are light, this leads to the infections being noticed only during processing. Ascaridia dissimilis infections consist of adult worms and developing larvae with the latter comprising most of the worm burden and causing the most …


Landowner Attitudes Toward Introduced Wild Turkeys In Northwestern Minnesota, Chad J. Parent, Brett J. Goodwin, Eric M. Dunton Jan 2012

Landowner Attitudes Toward Introduced Wild Turkeys In Northwestern Minnesota, Chad J. Parent, Brett J. Goodwin, Eric M. Dunton

Human–Wildlife Interactions

Wild turkeys (Meleagris gallopavo) were introduced to northwestern Minnesota, USA, in 2006 and 2007. This provided an opportunity to examine landowner feelings for a wildlife species not endemic to the region. In 2007, we mailed surveys to 200 landowners to evaluate landowner interactions, feelings, and concerns with turkeys. Overall response rate was 76%. Eighty-nine percent of respondents in northwestern Minnesota reported positive feelings toward turkeys, 9% were indifferent, and 2% reported negative feelings. The introduced turkeys were not perceived to be problematic:


Brown Treesnakes: A Potential Invasive Species For The United States, Samantha Sue Kahl, Scott E. Henke, Marc A. Hall, David K. Britton Jan 2012

Brown Treesnakes: A Potential Invasive Species For The United States, Samantha Sue Kahl, Scott E. Henke, Marc A. Hall, David K. Britton

Human–Wildlife Interactions

Brown treesnakes (ˆ) are mildly venomous, exotic snakes that have the potential to become an invasive species in North America, Hawaii, and the Commonwealth of the Northern Mariana Islands. The snake is native to northern and eastern Australia, New Guinea, and other islands of northern and western Melanesia. The snakes were first found outside their native range on Guam in 1953. The exact date they reached the island is uncertain, but they are believed to have arrived on military cargo transport vessels some time during or just after World War II. During the years that followed, the population of brown …


Modification Of Net Configurations Of The Coda Netlauncher® To Enhance Bird Capture, Amanda M. Prisock, Brian S. Dorr, James C. Cumbee Jan 2012

Modification Of Net Configurations Of The Coda Netlauncher® To Enhance Bird Capture, Amanda M. Prisock, Brian S. Dorr, James C. Cumbee

Human–Wildlife Interactions

We modified and evaluated capture nets fired from the Coda Netlauncher® as a tool for capturing various avian species. We modified the netlauncher by using customized nets to maximize the area of the capture zone. We captured 137 birds, comprising 12 species, in 23 attempts between July 2008 and October 2009 using this method. Capture success rates varied from 25 to 69% were comparable to success rates reported for other capture methods for these species. However, individual capture success for different net configurations varied greatly from 3 to 65%. Minimal injuries and 2 bird fatalities were reported. The netlauncher, using …


A Model To Predict The Likelihood Of Cliff Swallow Nesting On Highway Structures In Northern California, Robert W. Coates, Michael Delwiche, W. Paul Gorenzel, Terrell P. Salmon Jan 2012

A Model To Predict The Likelihood Of Cliff Swallow Nesting On Highway Structures In Northern California, Robert W. Coates, Michael Delwiche, W. Paul Gorenzel, Terrell P. Salmon

Human–Wildlife Interactions

Cliff swallows (Petrochelidon pyrrhonota) are colonially breeding migratory birds that frequently nest on highway structures. Under the Migratory Bird Treaty Act of 1918, people cannot harm swallows or their active nests. This restriction causes problems and delays for construction and maintenance divisions of many departments of transportation. In planning future projects, it would be useful for these divisions to have a habitat selection model that can predict the likelihood of cliff swallow nesting on a particular highway structure. We used logistic regression on data collected from 206 highway structures and 2 different land cover data sets to develop …


Factors Influencing Survival Of Desert Mule Deer In The Greater San Andres Mountains, New Mexico, Louis C. Bender, Brock D. Hoenes, Cristina L. Rodden Jan 2012

Factors Influencing Survival Of Desert Mule Deer In The Greater San Andres Mountains, New Mexico, Louis C. Bender, Brock D. Hoenes, Cristina L. Rodden

Human–Wildlife Interactions

Mule deer numbers have declined precipitously in the San Andres Mountains of southcentral New Mexico. To assess reasons for population declines, we monitored condition, survival, and causes of mortality for a range of 37 to 64 radio-collared, >1.5-year-old female mule deer annually, and a range of 14 to 31 radio-collared, >1.5-year-old male mule deer annually from 2003 to 2009, and modeled environmental factors affecting survival. We found annual survival rates of 0.74 to 0.86 for females and 0.74 to 0.92 for males, rates that were similar among years within sexes. Causes of mortality for 50 radio-collared females and 22 radio-collared …


An Investigation Into The Use Of Road Drainage Structures By Wildlife In Maryland, Usa, James L. Sparks Jr., J. Edward Gates Jan 2012

An Investigation Into The Use Of Road Drainage Structures By Wildlife In Maryland, Usa, James L. Sparks Jr., J. Edward Gates

Human–Wildlife Interactions

Culverts have been installed beneath roadways for drainage or to contain existing streams; however, most of them have not been installed to facilitate the passage of wildlife. Prior studies of existing drainage structures used by wildlife have been narrow in scope, targeting a restricted number of culverts, time periods, or locales. Use of culverts by wildlife has been postulated to promote connectivity of fragmented populations and their habitats and to reduce roadkills. We monitored 265 culverts located throughout Maryland, USA, with game cameras in all seasons and in every physiographic province. Our objectives were to identify those species using culverts …


Using Radio-Telemetry To Assess The Risk European Starlings Pose In Pathogen Transmission Among Feedlots, Shannon M. Gaukler, H. Jeffrey Homan, George M. Linz, William J. Bleier Jan 2012

Using Radio-Telemetry To Assess The Risk European Starlings Pose In Pathogen Transmission Among Feedlots, Shannon M. Gaukler, H. Jeffrey Homan, George M. Linz, William J. Bleier

Human–Wildlife Interactions

We monitored site-use and movements of 102 radio-tagged European starlings (Sturnus vulgaris) during the winter months at 2 concentrated animal feeding operations (feedlots) in central Kansas. Our research investigated the spatial ecology of wintering starlings as part of a broad epidemiological study on the possible role of starlings in pathogen transmission at feedlots. Site fidelity was 0.677 and 0.552 (days at capture-site per total days tagged) for feedlots A and B, respectively. Minimal exchange (9%) occurred between feedlots A and B and was often followed by a roost-site change. Starlings rarely abandoned the feedlot where they were captured, …


Apparent Prevalence Of Swine Brucellosis In Feral Swine In The United States, Kerri Pedersen, Sarah N. Bevins, Brandon S. Schmit, Mark W. Lutman, Michael P. Milleson, Clint T. Turnage, Troy T. Bigelow, Thomas J. Deliberto Jan 2012

Apparent Prevalence Of Swine Brucellosis In Feral Swine In The United States, Kerri Pedersen, Sarah N. Bevins, Brandon S. Schmit, Mark W. Lutman, Michael P. Milleson, Clint T. Turnage, Troy T. Bigelow, Thomas J. Deliberto

Human–Wildlife Interactions

Samples were collected in 35 states as part of a national monitoring system to detect multiple diseases in feral swine (Sus scrofa). During March 2009 through December 2010, we collected serum samples from 4,479 feral swine from 13 states, and 159 animals tested were seropositive for brucellosis. No difference in likelihood of infection was found between males and females, but adults were more likely than sub-adults or juveniles to be exposed to brucellosis. Feral swine sampled during winter months also were more likely to be seropositive than animals sampled during other seasons. Apparent prevalence varied among states, and …


Evaluation Of Vascular Changes In Cattle Relative To Time-Off Endophyte-Infected Tall Fescue, Jessica R. Bussard Jan 2012

Evaluation Of Vascular Changes In Cattle Relative To Time-Off Endophyte-Infected Tall Fescue, Jessica R. Bussard

Theses and Dissertations--Plant and Soil Sciences

Twenty-four steers were grazed on endophyte (Neotyphodium coenophialum)-infected [[Lolium arundinaceum (Schreb.) Darbysh]; E+] tall fescue (TF) and exposed to ergot alkaloids for an 106-d grazing period. Cattle were removed from pasture, placed in dry lots, and fed a non-toxic diet to evaluate changes in vascular contraction relative to time-off E+ TF pasture. Lateral saphenous veins (SV) were biopsied from steers at 0-, 21-, 42-, and 63-d off TF pasture and from 6 control steers at 0- and 63-d off bermudagrass (BG) pasture. To evaluate contractile response, biopsied SV were exposed to increasing concentrations of ergotamine in a multimyograph. Cross-sectional scans …


Contagious Ecthyma In A Rocky Mountain Bighorn Sheep From Utah, David J. Wilson, Leslie Mcfarlane Jan 2012

Contagious Ecthyma In A Rocky Mountain Bighorn Sheep From Utah, David J. Wilson, Leslie Mcfarlane

Human–Wildlife Interactions

In December 2008, near Flaming Gorge Reservoir in northeastern Utah, a 2 ½-year-old male Rocky Mountain bighorn sheep (Ovis canadensis canadensis) was reported in poor body condition with bloody lesions covering the muzzle area. The sheep was euthanized, and samples were submitted to the Utah Veterinary Diagnostic Laboratory in Logan, Utah. The gross and microscopic lesions confirmed the diagnosis of contagious ecthyma (CE). This is the first documented report of CE in bighorn sheep from Utah.


Unintended Consequences Of Bovine Brucellosis Management On Demand For Elk Hunting In Northwestern Wyoming, Mandy E. Kauffman, Benjamin S. Rashford, Dannele E. Peck Jan 2012

Unintended Consequences Of Bovine Brucellosis Management On Demand For Elk Hunting In Northwestern Wyoming, Mandy E. Kauffman, Benjamin S. Rashford, Dannele E. Peck

Human–Wildlife Interactions

Management strategies proposed to mitigate the risk of brucellosis transmission between elk and cattle (e.g., test-and-slaughter of all elk, elimination of feedgrounds, use of contraceptives) could result in a substantial decrease in elk (Cervus elaphus nelsoni) populations. These strategies could impact hunting and outfitting industries through reduced regional elk populations. Loss of hunters, particularly nonresidents, could result in economic losses for the state and hinder elk management. We estimated 2 empirical models using panel data from multiple hunt areas to determine effects of elk population changes on demand for elk hunting licenses in northwest Wyoming. First, we used …


Brucellosis In The Greater Yellowstone Area: Disease Management At The Wildlife–Livestock Interface, Brant A. Schumaker, Dannelle E. Peck, Mandy E. Kauffman Jan 2012

Brucellosis In The Greater Yellowstone Area: Disease Management At The Wildlife–Livestock Interface, Brant A. Schumaker, Dannelle E. Peck, Mandy E. Kauffman

Human–Wildlife Interactions

Elk (Cervus elaphus) and bison (Bison bison) of the Greater Yellowstone area are the last known reservoir of bovine brucellosis (Brucella abortus) in the United States. Domestic cattle occasionally contract the disease while grazing in areas where infected wild ungulates have aborted their fetuses or have given birth. Cases of brucellosis in cattle trigger costly quarantine, testing, and culling procedures. Government agencies and stakeholders, therefore, allocate valuable resources to prevent wildlife-to-cattle transmission. Scientific uncertainty about the biology, epidemiology, and economics of brucellosis makes it difficult to determine the length to which society should go to control it or the combination …


Role Of Bird Movements In The Epidemiology Of West Nile And Avian Influenza Virus, Sabir B. Muzaffar, Nichola J. Hill, John Y. Takekawa, William M. Perry, Lacy M. Smith, Walter M. Boyce Jan 2012

Role Of Bird Movements In The Epidemiology Of West Nile And Avian Influenza Virus, Sabir B. Muzaffar, Nichola J. Hill, John Y. Takekawa, William M. Perry, Lacy M. Smith, Walter M. Boyce

Human–Wildlife Interactions

Avian influenza virus (AIV) is influenced by site fidelity and movements of bird hosts. We examined the movement ecology of American crows (Corvus brachyrhynchos) as potential hosts for West Nile virus (WNV) and greater white-fronted geese (Anser albifrons frontalis) as potential hosts for AIVs. Research was based on radio-telemetry studies conducted in the Central Valley of California, USA. While crows were restricted to a small area of only a few square kilometers, the distribution of the geese encompassed the northern Central Valley. The crows used 1.5 to 3.5 different roosting areas monthly from February through October, …


Lead-Free, High-Powered Rifle Bullets And Their Applicability In Wildlife Management, Joe N. Caudell, Scott R. Stopak, Paul C. Wolf Jan 2012

Lead-Free, High-Powered Rifle Bullets And Their Applicability In Wildlife Management, Joe N. Caudell, Scott R. Stopak, Paul C. Wolf

Human–Wildlife Interactions

In recent years, concern over the use of lead-based ammunition for hunting has been growing, primarily due to consumption of discarded offal by scavengers and donated game meat for human consumption. While there are alternative bullet technologies on the market that are suitable for hunting, these alternatives have not been adequately researched and tested for use in professional wildlife damage management (WDM). Differences between hunting and WDM include an increased level of precision necessary for safe WDM work, potentially greater distances for shots fired at targets, a need for instant incapacitation, and overall cost-effectiveness. To determine the applicability of lead-free …