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Articles 1 - 28 of 28
Full-Text Articles in Life Sciences
The Rise And Fall Of Kin Structure In The Neotropical, Family-Living Buff-Breasted Wren (Cantorchilus Leucotis) In Gamboa, Panama, Sarah C. Alessi
The Rise And Fall Of Kin Structure In The Neotropical, Family-Living Buff-Breasted Wren (Cantorchilus Leucotis) In Gamboa, Panama, Sarah C. Alessi
Masters Theses
Family-living species provide an exciting model to examine how natal dispersal and kin structure influence genetic structuring within local populations. Juvenile buff-breasted wrens (Cantorchilus leucotis) of both sexes delay dispersal and exhibit short-distance natal dispersal, which should lead to kin-structured populations in which relatives of both sexes occupy neighboring territories. Blood samples collected from juvenile and adult wrens in Gamboa, Panama were analyzed using microsatellite markers to determine whether related individuals are spatially clustered on neighboring territories, spatial clusters of relatives change over time, and if kin structure is sex-specific. Global and local spatial autocorrelation analyses detected genetic …
Ornamental Bill Color Rapidly Signals Changing Condition, M. F. Rosenthal, Troy G. Murphy, N. Darling, K. A. Tarvin
Ornamental Bill Color Rapidly Signals Changing Condition, M. F. Rosenthal, Troy G. Murphy, N. Darling, K. A. Tarvin
Biology Faculty Research
Ornamental bill color is postulated to function as a condition-dependent signal of individual quality in a variety of taxonomically distant bird families. Most red, orange, and yellow bill colors are derived from carotenoid pigments, and carotenoid deposition in ornamentation may trade off with their use as immunostimulants and antioxidants or with other physiological functions. Several studies have found that bill color changes in response to physiological perturbations, but how quickly such changes can occur remains unclear. We tested the hypothesis that carotenoid-based orange bill color of American goldfinches Spinus tristis responds dynamically to rapid changes in physiological stress and reflects …
Bird Use Of Cumberland Island's Freshwater Wetlands, Lisa Dlugolecki
Bird Use Of Cumberland Island's Freshwater Wetlands, Lisa Dlugolecki
Electronic Theses and Dissertations
Cumberland Island is the southernmost barrier island off the coast of Georgia. Its freshwater wetlands are an important, rare habitat to have on a barrier island surrounded by saltmarsh and ocean. Many species of birds require freshwater wetlands as feeding, roosting and nesting grounds. However, the freshwater wetlands on Cumberland Island have been impacted by humans for centuries causing birds to abandon their historic nesting ground. Known land use histories of Cumberland Island's freshwater wetlands were gathered to try and determine how the wetlands changed over time Wetlands were analyzed for presence of wetland-dependent birds and recorded. Thirty-six species of …
Derivation Of Screening Benchmarks For Dietary Methylmercury Exposure For The Common Loon (Gavia Immer): Rationale For Use In Ecological Risk Assessment, David C. Depew, Niladri Basu, Neil M. Burgess, Linda M. Campbell
Derivation Of Screening Benchmarks For Dietary Methylmercury Exposure For The Common Loon (Gavia Immer): Rationale For Use In Ecological Risk Assessment, David C. Depew, Niladri Basu, Neil M. Burgess, Linda M. Campbell
University Faculty Publications and Creative Works
The current understanding of methylmercury (MeHg) toxicity to avian species has improved considerably in recent years and indicates that exposure to environmentally relevant concentrations of MeHg through the diet can adversely affect various aspects of avian health, reproduction, and survival. Because fish-eating birds are at particular risk for elevated MeHg exposure, the authors surveyed the available primary and secondary literature to summarize the effects of dietary MeHg on the common loon (Gavia immer) and to derive ecologically relevant toxic thresholds for dietary exposure to MeHg in fish prey. After considering the available data, the authors propose three screening benchmarks of …
Derivation Of Screening Benchmarks For Dietary Methylmercury Exposure For The Common Loon (Gavia Immer): Rationale For Use In Ecological Risk Assessment, David C. Depew, Niladri Basu, Neil M. Burgess, Linda M. Campbell
Derivation Of Screening Benchmarks For Dietary Methylmercury Exposure For The Common Loon (Gavia Immer): Rationale For Use In Ecological Risk Assessment, David C. Depew, Niladri Basu, Neil M. Burgess, Linda M. Campbell
University Faculty Publications and Creative Works
The current understanding of methylmercury (MeHg) toxicity to avian species has improved considerably in recent years and indicates that exposure to environmentally relevant concentrations of MeHg through the diet can adversely affect various aspects of avian health, reproduction, and survival. Because fish-eating birds are at particular risk for elevated MeHg exposure, the authors surveyed the available primary and secondary literature to summarize the effects of dietary MeHg on the common loon (Gavia immer) and to derive ecologically relevant toxic thresholds for dietary exposure to MeHg in fish prey. After considering the available data, the authors propose three screening benchmarks of …
Influences Of Trees On Abundance Of Natural Enemies Of Insect Pests: A Review, Mary Ellen Dix, R. J. Johnson, Mark O. Harrell, Ronald M. Case, Robert J. Wright, Laurie Hodges, James R. Brandle, Michelle M. Schoeneberger, N. J. Sunderman, R. L. Fitzmaurice, L. J. Young, Kenneth G. Hubbard
Influences Of Trees On Abundance Of Natural Enemies Of Insect Pests: A Review, Mary Ellen Dix, R. J. Johnson, Mark O. Harrell, Ronald M. Case, Robert J. Wright, Laurie Hodges, James R. Brandle, Michelle M. Schoeneberger, N. J. Sunderman, R. L. Fitzmaurice, L. J. Young, Kenneth G. Hubbard
Laurie Hodges
In this article we review the use of natural enemies in crop pest management and describe research needed to better meet information needs for practical applications. Endemic natural enemies (predators and parasites) offer a potential but understudied approach to controlling insect pests in agricultural systems. With the current high interest in environmental stewardship, such an approach has special appeal as a method to reduce the need for pesticides while maintaining agricultural profitability. Habitat for sustaining populations of natural enemies occurs primarily at field edges where crops and edge vegetation meet. Conservation and enhancement of natural enemies might include manipulation of …
Rocky Mountain Birds: Birds And Birding In The Central And Northern Rockies, Paul A. Johnsgard
Rocky Mountain Birds: Birds And Birding In The Central And Northern Rockies, Paul A. Johnsgard
Paul Johnsgard
“The Rocky Mountain region has fascinated me ever since I traveled to Glacier and Yellowstone National Parks as a teenager, and saw for the first time such wonderful birds as ospreys, American dippers, and Lewis’s woodpeckers.” This book is in part based on the author’s earlier Birds of the Rocky Mountains (1986, revised 2009), but over a third of the original text has been eliminated. The rest has been updated, expanded and modified to be less technical and more useful to birders in the field. Bird enthusiasts will find viewing locations and updated contact information for hundreds of sites in …
A Nebraska Bird-Finding Guide, Paul A. Johnsgard
A Nebraska Bird-Finding Guide, Paul A. Johnsgard
Paul Johnsgard
Nebraska lies in the transition zone between North American eastern and western avifaunas and is home to more than 200 breeding and 150 migrant species. This definitive guide to Nebraska birdwatching by the state’s preeminent ornithologist includes a county-by-county rundown of the best sites, a calendar of migrations, an annotated checklist of regularly occurring Nebraska birds, and recommendations for optical equipment, publications and reference materials, and contact information for conservation and ornithological groups. It features 48 maps as well as photographs and drawings by the author. Paul Johnsgard, Foundation Professor Emeritus of Biological Sciences at the University of Nebraska–Lincoln, is …
Experimental Evidence For The Interplay Of Exogenous And Endogenous Factors On The Movement Ecology Of A Migrating Songbird, Emily B. Cohen, Frank R. Moore, Richard A. Fischer
Experimental Evidence For The Interplay Of Exogenous And Endogenous Factors On The Movement Ecology Of A Migrating Songbird, Emily B. Cohen, Frank R. Moore, Richard A. Fischer
Faculty Publications
Movement patterns during songbird migration remain poorly understood despite their expected fitness consequences in terms of survival, energetic condition and timing of migration that will carry over to subsequent phases of the annual cycle. We took an experimental approach to test hypotheses regarding the influence of habitat, energetic condition, time of season and sex on the hour-by-hour, local movement decisions of a songbird during spring stopover. To simulate arrival of nocturnal migrants at unfamiliar stopover sites, we translocated and continuously tracked migratory red-eyed vireos (Vireo olivaceus) throughout spring stopover with and without energetic reserves that were released in two replicates …
Evolution And Biogeography Of Fire-Eye Antbirds (Genus Pyriglena): Insights From Molecules And Songs, Marcos Maldonado Coelho
Evolution And Biogeography Of Fire-Eye Antbirds (Genus Pyriglena): Insights From Molecules And Songs, Marcos Maldonado Coelho
Dissertations
The importance of climatic and geologic factors as drivers of population differentiation and speciation in the Neotropical region has long been appreciated. However, many questions remain regarding their roles underlying the processes and patterns of diversification. Studies conducted in distinct regions containing a suite of geological and ecological conditions constitute ideal scenarios to assess the role of Pleistocene climatic changes, rivers, and mountain building as historical diversification mechanisms. In chapters 1 and 2, I used an integrative approach combining molecular phylogenetics, phylogeography and population genetics to elucidate the importance of climatic and geological factors as engines of diversification. I focused …
Tool Use In Fishes, Culum Brown
Tool Use In Fishes, Culum Brown
Sentience Collection
Tool use was once considered the sole domain of humans. Over the last 40 years, however, it has become apparent that tool use may be widespread across the animal kingdom. Pioneering studies in primates have shaped the way we think about tool use in animals, but have also lead to a bias both in terms of our expectations about which animals should be capable of using tools and the working definition of tool use. Here I briefly examine tool use in terrestrial animals and consider the constraints of the current working definition of tool use in fishes. Fishes lack grasping …
What Is Expected Of The Poultry Showman?, Troy D. Cooper, David D. Frame
What Is Expected Of The Poultry Showman?, Troy D. Cooper, David D. Frame
All Current Publications
Showmanship is an exhibitor focused activity. The bird serves as a prop, while the exhibitor does the performing
Patterns Of Incubation Behavior In Northern Bobwhites (Colinus Virginianus), Jonathan S. Burnam, Gretchen Turner, Susan Ellis-Felege, William E. Palmer, D. Clay Sisson, John P. Carroll
Patterns Of Incubation Behavior In Northern Bobwhites (Colinus Virginianus), Jonathan S. Burnam, Gretchen Turner, Susan Ellis-Felege, William E. Palmer, D. Clay Sisson, John P. Carroll
School of Natural Resources: Faculty Publications
Patterns of incubation and nesting behavior for many species of birds, especially those with cryptic nests, have been difficult to obtain due to logistical and technological limitations. As a result, little is known about the daily attendance rhythms and behavioral patterns of many species, including the Northern Bobwhite (Colinus virginianus), despite this species being one of the most studied birds in the world. Incubation represents parental investment in offspring, and a multitude of factors may affect investment behaviors, including reproductive ecology, sex and age of parent, habitat quality, clutch age, and timing in the nesting season. Most Northern Bobwhite nests …
Pleistocene Faunal Fossils From Bayangol I Site, Bulgan Aimag, Mongolia, Takao Sato, Fedora Khenzykhenova, Toshiaki Tsurumaru, Masao Ambiru, Jun Takakura, Yoshiaki Otsuka, Shigeo Iida, Natalya Schepina, Batmunkh Tsogtbaatar
Pleistocene Faunal Fossils From Bayangol I Site, Bulgan Aimag, Mongolia, Takao Sato, Fedora Khenzykhenova, Toshiaki Tsurumaru, Masao Ambiru, Jun Takakura, Yoshiaki Otsuka, Shigeo Iida, Natalya Schepina, Batmunkh Tsogtbaatar
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
During excavation of the Bayan-gol I Palaeolithic site in the Bulgan Aimak, Mongolia, some faunistic remains were recovered attributable to Aves (two species), Anura (two species), and mammals (three species). The fossil remains bear a considerable similarity to the corresponding species of today in Mongolia.
Bird Red List And Its Future Development In Mongolia, Sundev Gombobaatar, D. Samiya, Jonathan M. Baillie
Bird Red List And Its Future Development In Mongolia, Sundev Gombobaatar, D. Samiya, Jonathan M. Baillie
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
With the involvement of the World Bank, Zoological Society of London, Dutch Government and National University of Mongolia, the volumes of Mongolian Red Lists of Fish, Amphibians and Reptiles, Birds and Mammals were completed, and Mongolia is now among the few nations that have up-to-date conservation assessments for all vertebrates. Of the 476 assessed native bird species of Mongolia, 10% were categorized as regionally threatened including Near Threatened. A further 0.6% were categorized as Critically Endangered (CR), 1.7% as Endangered (EN), 3.3% as Vulnerable (VU), and 4.4% as Near Threatened (NT). Almost 90% of Mongolian birds are categorized as Least …
Modification Of Net Configurations Of The Coda Netlauncher© To Enhance Bird Capture, Amanda M. Prisock, Brian S. Dorr, James C. Cumbee
Modification Of Net Configurations Of The Coda Netlauncher© To Enhance Bird Capture, Amanda M. Prisock, Brian S. Dorr, James C. Cumbee
Brian S Dorr
Abstract: We modified and evaluated capture nets fi red 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 …
Impacts Of Urbanisation On The Native Avifauna Of Perth, Western Australia, Robert A. Davis, Cheryl Gole, J Dale Roberts
Impacts Of Urbanisation On The Native Avifauna Of Perth, Western Australia, Robert A. Davis, Cheryl Gole, J Dale Roberts
Research outputs 2013
Urban development either eliminates, or severely fragments, native vegetation, and therefore alters the distribution and abundance of species that depend on it for habitat. We assessed the impact of urban development on bird communities at 121 sites in and around Perth, Western Australia. Based on data from community surveys, at least 83 % of 65 landbirds were found to be dependent, in some way, on the presence of native vegetation. For three groups of species defined by specific patterns of habitat use (bushland birds), there were sufficient data to show that species occurrences declined as the landscape changed from variegated …
Impacts Of Urbanisation On The Native Avifauna Of Perth, Western Australia, Robert Davis, C Gole, Jd Roberts
Impacts Of Urbanisation On The Native Avifauna Of Perth, Western Australia, Robert Davis, C Gole, Jd Roberts
Research outputs 2012
Urban development either eliminates, or severely fragments, native vegetation, and therefore alters the distribution and abundance of species that depend on it for habitat. We assessed the impact of urban development on bird communities at 121 sites in and around Perth, Western Australia. Based on data from community surveys, at least 83 % of 65 landbirds were found to be dependent, in some way, on the presence of native vegetation. For three groups of species defined by specific patterns of habitat use (bushland birds), there were sufficient data to show that species occurrences declined as the landscape changed from variegated …
Bird Consumption Of Sweet And Tart Cherries, Catherine A. Lindell, Rachael A. Eaton, Erin M. Lizotte, Nikki L. Rothwell
Bird Consumption Of Sweet And Tart Cherries, Catherine A. Lindell, Rachael A. Eaton, Erin M. Lizotte, Nikki L. Rothwell
Human–Wildlife Interactions
Identifying species responsible for crop damage is an important first step in developing management strategies. Previous studies have surveyed bird species flying through cherry orchards but have not documented which species were consuming cherries. We conducted traditional surveys and behavioral observations in orchards of sweet cherries (Prunus avium) and tart cherries (Prunus cerasus) in Michigan during 2010 to compare results from the 2 techniques. American robins (Turdus migratorius) were detected most frequently during sweet cherry surveys, while behavioral observations showed that cedar waxwings (Bombycilla cedrorum) consumed more sweet cherries than did robins. …
Outdoor Cats: An Animal Welfare And Protection Perspective, John Hadidian, Inga Gibson, Susan Hagood, Nancy Peterson, Bernard Unti, Betsy Mcfarland, Katie Lisnik, Heather Bialy, Inga Fricke, Kathleen Schatzmann, Jennifer Fearing, Pam Runquist, Andrew N. Rowan (Ed.)
Outdoor Cats: An Animal Welfare And Protection Perspective, John Hadidian, Inga Gibson, Susan Hagood, Nancy Peterson, Bernard Unti, Betsy Mcfarland, Katie Lisnik, Heather Bialy, Inga Fricke, Kathleen Schatzmann, Jennifer Fearing, Pam Runquist, Andrew N. Rowan (Ed.)
Stray and Feral Animal Populations Collection
First raised as a serious conservation issue more than 100 years ago, the impact of free-roaming cats on wildlife has been a subject of debate, controversy, and conflict since then. Cats have been tied directly to the extinction of sensitive species in island environments and implicated as major threats to certain wildlife populations elsewhere. Yet the study of free-roaming cats and the problems attributed to them lags behind the standards of research typical with more traditional vertebrate “pest” species. Alternative management approaches, ranging from traditional practices such as removal and depopulation to emerging concepts such as Trap- Neuter-Return (TNR), have …
Modeling Broad-Scale Patterns Of Avian Species Richness Across The Midwestern United States With Measures Of Satellite Image Texture, Patrick D. Culbert, Volker C. Radeloff, Véronique St-Louis, Curtis H. Flather, Chadwick D. Rittenhouse, Thomas P. Albright, Anna M. Pidgeon
Modeling Broad-Scale Patterns Of Avian Species Richness Across The Midwestern United States With Measures Of Satellite Image Texture, Patrick D. Culbert, Volker C. Radeloff, Véronique St-Louis, Curtis H. Flather, Chadwick D. Rittenhouse, Thomas P. Albright, Anna M. Pidgeon
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
Avian biodiversity is threatened, and in order to prioritize limited conservation resources and conduct effective conservation planning a better understanding of avian species richness patterns is needed. The use of image texture measures, as a proxy for the spatial structure of land cover and vegetation, has proven useful in explaining patterns of avian abundance and species richness. However, prior studies that modeled habitat with texture measures were conducted over small geographical extents and typically focused on a single habitat type. Our goal was to evaluate the performance of texture measures over broad spatial extents and across multiple habitat types with …
Are Turf-Type Tall Fescue Cultivars Useful For Reducing Wildlife Hazards In Airport Environments?, Brian E. Washburn
Are Turf-Type Tall Fescue Cultivars Useful For Reducing Wildlife Hazards In Airport Environments?, Brian E. Washburn
United States Department of Agriculture Wildlife Services: Staff Publications
Wildlife-aircraft collisions pose a serious risk to aircraft and cost civil aviation over US$1 billion worldwide annually. Habitat management within airport environments is the most important long-term component of an integrated approach to reduce the use of airfields by hazardous wildlife. Recent research has demonstrated that Canada geese avoid foraging on endophyte-infected tall fescue; consequently, this turfgrass might be useful in airfield revegetation and seeding projects. Although some research evaluating commercially available tall fescue cultivars on airfields has been conducted, additional information is needed to determine if tall fescue cultivars might be viable for airfields in various regions of the …
Placing Birds On A Dynamic Evolutionary Map: Using Digital Tools To Update The Evolutionary Metaphor Of The "Tree Of Life", Sonia Stephens
Placing Birds On A Dynamic Evolutionary Map: Using Digital Tools To Update The Evolutionary Metaphor Of The "Tree Of Life", Sonia Stephens
Electronic Theses and Dissertations
This dissertation describes and presents a new type of interactive visualization for communicating about evolutionary biology, the dynamic evolutionary map. This web-based tool utilizes a novel map-based metaphor to visualize evolution, rather than the traditional "tree of life." The dissertation begins with an analysis of the conceptual affordances of the traditional tree of life as the dominant metaphor for evolution. Next, theories from digital media, visualization, and cognitive science research are synthesized to support the assertion that digital media tools can extend the types of visual metaphors we use in science communication in order to overcome conceptual limitations of traditional …
Modification Of Net Configurations Of The Coda Netlauncher® To Enhance Bird Capture, Amanda M. Prisock, Brian S. Dorr, James C. Cumbee
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 …
The Net Benefits Of Controlling Bird And Rodent Pests In Wine Grape And Avocado Production, Aaron M, Anderson, Katy Kirkpatrick, Stephanie A. Shwiff
The Net Benefits Of Controlling Bird And Rodent Pests In Wine Grape And Avocado Production, Aaron M, Anderson, Katy Kirkpatrick, Stephanie A. Shwiff
United States Department of Agriculture Wildlife Services: Staff Publications
The objective of this analysis was to estimate the net benefits of controlling bird and rodent pests in California production of wine grapes and avocados. These two crops were chosen because of the expected differences in types and extent of pest damage and methods of pest control used by growers, as well as their importance in California agriculture. A web-based survey was designed to capture grower experiences with current levels of pest damage and their expectations about damage levels without control. Information on the methods of pest control and associated costs was also solicited from growers. We obtained 83 responses …
Comparative Risk Assessment Of The First-Generation Anticoagulant Rodenticide Diphacinone To Raptors, Barnett A. Rattner, Rebecca S. Lazarus, Karen M. Eisenreich, Katherine E. Horak, Steven F. Volker, Christopher M. Campton, John D. Eisemann, Carol U. Meteyer, John J. Johnston
Comparative Risk Assessment Of The First-Generation Anticoagulant Rodenticide Diphacinone To Raptors, Barnett A. Rattner, Rebecca S. Lazarus, Karen M. Eisenreich, Katherine E. Horak, Steven F. Volker, Christopher M. Campton, John D. Eisemann, Carol U. Meteyer, John J. Johnston
United States Department of Agriculture Wildlife Services: Staff Publications
New regulatory restrictions have been placed on the use of some second-generation anticoagulant rodenticides in the United States, and in some situations this action may be offset by expanded use of first-generation compounds. We have recently conducted several studies with captive adult American kestrels and eastern screech-owls examining the toxicity of diphacinone (DPN) using both acute oral and short-term dietary exposure regimens. Diphacinone evoked overt signs of intoxication and lethality in these raptors at exposure doses that were 20 to 30 times lower than reported for traditionally used wildlife test species (mallard and northern bobwhite). Sublethal exposure of kestrels and …
Using Bird Strike Information To Direct Effective Management Actions Within Airport Environments, Todd J. Pitlik, Brian E. Washburn
Using Bird Strike Information To Direct Effective Management Actions Within Airport Environments, Todd J. Pitlik, Brian E. Washburn
United States Department of Agriculture Wildlife Services: Staff Publications
Wildlife--aircraft collisions (wildlife strikes) pose a serious safety risk to aircraft. Many bird species, especially gulls, are very difficult to manage within airport environments as many traditional methods (e.g., trap and remove from the airport) can be relatively ineffective due to the birds’ various activities on airports (e.g., feeding, loafing, and flying). Such challenges have greatly impacted the Los Angeles International Airport and the Van Nuys Airport, as documented through historical bird strike records collected since 1990. Using information contained in these bird strike records, USDA APHIS Wildlife Services personnel conducted strategic planning efforts to reduce the risk of bird …
Association Of Wild Bird Density And Farm Management Factors With The Prevalence Of E. Coli O157 In Dairy Herds In Ohio (2007–2009), N. Cernicchiaro, D. L. Pearl, S. A. Mcewen, L. Harpster, H. J. Homan, G. M. Linz, J. T. Lejeune
Association Of Wild Bird Density And Farm Management Factors With The Prevalence Of E. Coli O157 In Dairy Herds In Ohio (2007–2009), N. Cernicchiaro, D. L. Pearl, S. A. Mcewen, L. Harpster, H. J. Homan, G. M. Linz, J. T. Lejeune
United States Department of Agriculture Wildlife Services: Staff Publications
Our objective was to determine the role that European starlings (Sturnus vulgaris) play in the epidemiology of Escherichia coli O157:H7 in dairy cattle. We visited 150 dairy farms in Ohio twice during summer and fall months from 2007 to 2009. Fresh faecal pats from 30 lactating cows were collected during each visit. Information on farm management and environmental variables was gathered through a questionnaire administered to the farm owner. The number of starlings observed on the farm was also recorded. Approximately 1% of dairy cattle and 24% of farms were positive for E. coli O157. Risk factors associated …