Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (56)
- University of Colorado Law School (6)
- Department of Primary Industries and Regional Development, Western Australia (4)
- Connecticut College (2)
- Louisiana State University (2)
-
- Old Dominion University (2)
- The University of Maine (2)
- University of Vermont (2)
- Utah State University (2)
- Western Washington University (2)
- City University of New York (CUNY) (1)
- Edith Cowan University (1)
- Fort Hays State University (1)
- Iowa State University (1)
- Purdue University (1)
- SIT Graduate Institute/SIT Study Abroad (1)
- Selected Works (1)
- St. Cloud State University (1)
- St. Mary's University (1)
- St. Norbert College (1)
- Union College (1)
- University at Albany, State University of New York (1)
- University of Massachusetts Amherst (1)
- University of Mississippi (1)
- University of Nebraska at Omaha (1)
- University of South Florida (1)
- University of Tennessee, Knoxville (1)
- Washington University in St. Louis (1)
- West Virginia University (1)
- William & Mary (1)
- Publication Year
- Publication
-
- USDA Wildlife Services: Staff Publications (12)
- United States Geological Survey: Staff Publications (9)
- School of Natural Resources: Dissertations, Theses, and Student Research (8)
- Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications (5)
- Zea E-Books Collection (4)
-
- National Wildlife Research Center Repellents Conference 1995 (3)
- School of Natural Resources: Faculty Publications (3)
- All other publications (2)
- Biological Sciences Faculty Publications (2)
- Bulletins (2)
- Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 (2)
- Great Plains Wildlife Damage Control Workshop Proceedings (2)
- Honors Theses (2)
- Human–Wildlife Interactions (2)
- Journal of the Department of Agriculture, Western Australia, Series 4 (2)
- LSU Master's Theses (2)
- The Prairie Naturalist (2)
- 1999 Bird Strike Committee-USA/Canada, First Joint Annual Meeting, Vancouver, BC (1)
- 2001 Bird Strike Committee-USA/Canada, Third Joint Annual Meeting, Calgary, AB (1)
- All Archived Publications (1)
- All U.S. Government Documents (Utah Regional Depository) (1)
- Allocating and Managing Water for a Sustainable Future: Lessons from Around the World (Summer Conference, June 11-14) (1)
- College of Agriculture and Life Sciences Faculty Publications (1)
- Culminating Projects in Biology (1)
- Diane M. Debinski (1)
- Dissertations, Theses, and Capstone Projects (1)
- Doctoral Dissertations (1)
- Drought Mitigation Center: Faculty Publications (1)
- Electronic Theses and Dissertations (1)
- Erik Edward Nordman (1)
- Publication Type
- File Type
Articles 31 - 60 of 101
Full-Text Articles in Physical Sciences and Mathematics
Farmer Perceptions And Behaviors Related To Wildlife And On-Farm Conservation Actions, Sara M. Kross, Katherine P. Ingram, Rachael F. Long, Meredith T. Niles
Farmer Perceptions And Behaviors Related To Wildlife And On-Farm Conservation Actions, Sara M. Kross, Katherine P. Ingram, Rachael F. Long, Meredith T. Niles
College of Agriculture and Life Sciences Faculty Publications
Conservation Letters published by Wiley Periodicals, Inc. Policy makers are increasingly encouraging farmers to protect or enhance habitat on their farms for wildlife conservation. However, a lack of knowledge of farmers’ opinions toward wildlife can lead to poor integration of conservation measures. We surveyed farmers to assess their perceptions of ecosystem services and disservices from perching birds, raptors, and bats—three taxa commonly targeted by conservation measures. The majority of farmers thought that perching birds and bats were beneficial for insect pest control and that raptors were beneficial for vertebrate pest control; however, fruit farmers viewed perching birds more negatively than …
To Live And Fly In La: Using Bird Strike And Management Program Information To Improve Safety At Airports In The Los Angeles Basin, Todd J. Pitlik, Elizabeth Hermann, Eric Peralta, Brian E. Washburn
To Live And Fly In La: Using Bird Strike And Management Program Information To Improve Safety At Airports In The Los Angeles Basin, Todd J. Pitlik, Elizabeth Hermann, Eric Peralta, Brian E. Washburn
USDA Wildlife Services: Staff Publications
Wildlife-aircraft collisions (wildlife strikes) pose a serious safety risk to aircraft. Wildlife strikes can be evaluated at different levels, include efforts to examine these problems at the national, regional, or state level, or for an individual airport. Similarly, wildlife strikes involving individual wildlife species or guilds can be examined at varying scales. Although wildlife strike analyses at the national, regional, or species/guild level are valuable, airport-specific analyses are essential for the effective implementation and evaluation of integrated wildlife damage management programs as these actions are conducted at the airport level. The species that present hazards to safe aircraft operations varies …
Is Sensitivity To Anticoagulant Rodenticides Affected By Repeated Exposure In Hawks?, Barnett A. Rattner, Rebecca S. Lazarus, Thomas G. Bean, Katherine E. Horak,, Steven F. Volker, Julia Lankton
Is Sensitivity To Anticoagulant Rodenticides Affected By Repeated Exposure In Hawks?, Barnett A. Rattner, Rebecca S. Lazarus, Thomas G. Bean, Katherine E. Horak,, Steven F. Volker, Julia Lankton
United States Geological Survey: Staff Publications
A seminal question in wildlife toxicology is whether exposure to an environmental contaminant, in particular a secondgeneration anticoagulant rodenticide, can evoke subtle long lasting effects on body condition, physiological function and survival. Many reports indicate that non-target predators often carry residues of several rodenticides, which is indicative of multiple exposures. An often-cited study in laboratory rats demonstrated that exposure to the second-generation anticoagulant rodenticide brodifacoum prolongs blood clotting time for a few days, but weeks later when rats were re-exposed to the first-generation anticoagulant rodenticide warfarin, coagulopathy was more pronounced in brodifacoum-treated rats than naïve rats exposed to warfarin. To …
Risks And Hazards Of Rodenticide To Non-Raptor Birds, Nimish B. Vyas
Risks And Hazards Of Rodenticide To Non-Raptor Birds, Nimish B. Vyas
United States Geological Survey: Staff Publications
Incident data can support risk assessments by providing evidence of adverse effects of rodenticides to birds following operational applications. Traditionally, field monitoring for rodenticide incidents has focused primarily on raptors. However, nonraptor birds may also be poisoned (rodenticide exposure resulting in adverse effects including mortality) by rodenticides through consumption of the rodenticide bait and contaminated prey. I conducted a literature search canvassing 12 government and scholarly databases for rodenticide incidents (evidence of exposure to a rodenticide, adverse effects, or exposure to placebo baits) involving non-raptor birds. I used the search terms ‘rodenticide’ and ‘birds’ and from these results, I excluded …
Modelling Bird Migration With Motus Data And Bayesian State-Space Models, Justin Baldwin
Modelling Bird Migration With Motus Data And Bayesian State-Space Models, Justin Baldwin
Masters Theses
Bird migration is a poorly-known yet important phenomenon, as understanding movement patterns of birds can inform conservation strategies and public health policy for animal-borne diseases. Recent advances in wildlife tracking technology, in particular the Motus system, have allowed researchers to track even small flying birds and insects with radio transmitters that weigh fractions of a gram. This system relies on a community-based distributed sensor network that detects tagged animals as they move through the detection nodes on journeys that range from small local movements to intercontinental migrations. The quantity of data generated by the Motus system is unprecedented, is on …
Louisiana Birds Act As Reservoirs For Antibiotic-Resistant Bacteria, Collin T. Brown
Louisiana Birds Act As Reservoirs For Antibiotic-Resistant Bacteria, Collin T. Brown
LSU Master's Theses
Wild birds carry diverse microbial communities, including antibiotic-resistant bacteria (ARB). With the ever-increasing use of antibiotics in agricultural and clinical settings, genes that code for antibiotic resistance in bacteria have been selected for. These bacteria persist in the environment in a culturable state, but little is understood about communities of antibiotic-resistant bacteria in the environment. Birds with predictable behaviors may serve as useful indicators of these communities, and provide insights into how bacterial communities spread and evolve in the environment. To understand the utility of birds as indicators of the presence of antibiotic-resistant bacteria in the environment, we collected bacterial …
Bulletin No. 42: The Mamacoke Conservation Area, Glenn Dreyer, Robert Askins, Scott Peterson
Bulletin No. 42: The Mamacoke Conservation Area, Glenn Dreyer, Robert Askins, Scott Peterson
Bulletins
No abstract provided.
Framework For Drafting Ecological Objectives For Water Sharing Plans - Submission Of The Nsw Aboriginal Land Council, Geoff Scott, New South Wales Aboriginal Land Council
Framework For Drafting Ecological Objectives For Water Sharing Plans - Submission Of The Nsw Aboriginal Land Council, Geoff Scott, New South Wales Aboriginal Land Council
Indigenous Water Justice Symposium (June 6)
Presenter: Phil Duncan, Gomeroi Nation, New South Wales Aboriginal Land Council
4 pages
Contains 1 footnote
Letter addressed to Nick Cook, A/Team Leader, WSP Science & Evaluation - North, NSW Office of Water, from Geoff Scott, Chief Executive Officer, New South Wales Aboriginal Land Council.
Toxicity Reference Values For Chlorophacinone And Their Application For Assessing Anticoagulant Rodenticide Risk To Raptors, Barnett A. Rattner, Katherine E. Horak, Rebecca S. Lazarus, Sandra L. Schultz, Susan Knowles, Benjamin G. Abbo, Steven F. Volker
Toxicity Reference Values For Chlorophacinone And Their Application For Assessing Anticoagulant Rodenticide Risk To Raptors, Barnett A. Rattner, Katherine E. Horak, Rebecca S. Lazarus, Sandra L. Schultz, Susan Knowles, Benjamin G. Abbo, Steven F. Volker
United States Geological Survey: Staff Publications
Despite widespread use and benefit, there are
growing concerns regarding hazards of second-generation
anticoagulant rodenticides to non-target wildlife which
may result in expanded use of first-generation compounds,
including chlorophacinone (CPN). The toxicity of CPN
over a 7-day exposure period was investigated in American
kestrels (Falco sparverius) fed either rat tissue mechanically-
amended with CPN, tissue from rats fed Rozol bait
(biologically-incorporated CPN), or control diets (tissue
from untreated rats or commercial bird of prey diet)
ad libitum. Nominal CPN concentrations in the formulated
diets were 0.15, 0.75 and 1.5 µg/g food wet weight, and
measured concentrations averaged 94 …
If You Build It, What Will Come? Assessing The Avian Response To Wetland Restoration In The Mississippi River Bird’S Foot Delta Through Multiple Measures Of Density And Biodiversity, Lauren Rae Sullivan
If You Build It, What Will Come? Assessing The Avian Response To Wetland Restoration In The Mississippi River Bird’S Foot Delta Through Multiple Measures Of Density And Biodiversity, Lauren Rae Sullivan
LSU Master's Theses
Multiple wetland restoration and enhancement techniques are used in Louisiana to combat land loss and provide habitat for waterbirds. We investigated the avian response to three wetland restoration techniques in the Lower Mississippi Bird’s Foot Delta to determine if the different habitat types resulted in differences in the value of edge habitat. Species richness, guild richness, total bird density, bird density by foraging guild, and bird abundance relative to distance from the marsh edge was compared among (i) crevasse splays, a type of sediment diversion which allow the river to build new wetlands, (ii), beneficial use of dredged material marshes, …
Wildwood/Kraemer Lake County Park Observational Study: The Effects Of Fragmentation On Old-Growth Forest Species, Rhonda H. Zimmerman
Wildwood/Kraemer Lake County Park Observational Study: The Effects Of Fragmentation On Old-Growth Forest Species, Rhonda H. Zimmerman
Culminating Projects in Biology
Habitat fragmentation generates forest fragments with increased ratio of "edge". This "edge effect" alters the natural community. Old growth forests support deep forest communities which rely on the closed canopy for survival, often indicators of healthy old growth communities. Putative old growth forest patches were identified in Wildwood Park and St. John’s Arboretum/University. One study objective was to collect baseline data on flora and fauna in Wildwood to confirm the presence of old-growth patches. The main ecological goal of the study was to determine if bird and plant communities exhibited patterns consistent with the operating assumption of 50 acre old-growth …
Using Migration Monitoring Data To Assess Bird Population Status And Behavior In A Changing Environment, Evan M. Adams
Using Migration Monitoring Data To Assess Bird Population Status And Behavior In A Changing Environment, Evan M. Adams
Electronic Theses and Dissertations
Across the world, researchers use migration banding stations to document bird migration and study the phenomenon. In this dissertation, I focus on ways of analyzing bird migration banding data and the utility migrating birds as indicators of ecosystem health that make these monitoring efforts more useful to answering ecological questions and managing migratory species. In Chapter 1, we provide background on hierarchical modeling and an overview of our findings. In Chapter 2, we developed and validated new methods to estimate daily changes in migratory population size while controlling for changes in detectability due to environmental conditions. In Chapter 3, this …
Variation In Habitat Thresholds: An Analysis Of Minimum Habitat Requirements Of North American Breeding Birds, Yntze Van Der Hoek
Variation In Habitat Thresholds: An Analysis Of Minimum Habitat Requirements Of North American Breeding Birds, Yntze Van Der Hoek
Dissertations, Theses, and Capstone Projects
Many species show dramatic changes in population extinction or persistence probability at particular habitat amounts. These `extinction thresholds' could be translated to conservation targets, under the condition that we can derive generalities. I investigated the level of variation in landscape-level habitat thresholds for a suite of North American, forest-associated, breeding birds. Records from Breeding Bird Atlases and the availability of remotely-sensed land cover data allowed me to compare habitat thresholds for 25 species across the states of Massachusetts, Michigan, New York, Ohio, Pennsylvania, and Vermont. I show that variation in thresholds is considerable (Chapter II, III), as thresholds range from …
Land-Based Wind Energy And The Environment: Potential Impacts For Wildlife And The West Michigan Landscape, Betty Gajewski, Claire Schoolmaster, Jon Vandermolen, Erik Edward Nordman
Land-Based Wind Energy And The Environment: Potential Impacts For Wildlife And The West Michigan Landscape, Betty Gajewski, Claire Schoolmaster, Jon Vandermolen, Erik Edward Nordman
Erik Edward Nordman
No abstract provided.
The Effects Of Flooding On The Microbial Communities Of Sparrow Eggs In A Temperate Maine Salt Marsh, Mattie Paradise
The Effects Of Flooding On The Microbial Communities Of Sparrow Eggs In A Temperate Maine Salt Marsh, Mattie Paradise
Honors College
Microbial infection has been shown to reduce hatching success for the eggs of tropical birds. In these ecosystems, humidity and temperature encourage bacterial growth and the transport of microbes through the pores of the egg shell. A single study in a temperate ecosystem found no noticeable change of microbial communities during the length of the incubation cycle, and thus no increased risk of microbial infection by the time of hatching. This study, however, took place in the arid Mediterranean type climate of California, a locale that likely diminishes the abilities of microbial communities to colonize and grow on egg surfaces. …
Old Tools, New View : Utilizing Species Distribution Models To Focus Conservation Efforts Under A Changing Climate, Samantha Hoff
Old Tools, New View : Utilizing Species Distribution Models To Focus Conservation Efforts Under A Changing Climate, Samantha Hoff
Legacy Theses & Dissertations (2009 - 2024)
In New York State, scientists have observed many changes in bird communities including population declines, range contractions, mismatch between behavior and resources, and changes in bird phenology as a result of climatic changes. Four objectives were addressed with this research: understanding how different bird species may respond to changing climatic conditions under a future IPCC emission scenario; determining how suitable habitat may change in the future and what bioclimatic variables are important to specific avian guilds; identifying hotspots of suitable habitat that may represent important areas for conservation investment; and investigating how managers can incorporate future climate predictions into management …
Bird Mortality In The Human Built Environment, Stacie Schwartz
Bird Mortality In The Human Built Environment, Stacie Schwartz
Honors Theses
Human development is having a detrimental effect on bird populations around the world. One hundred million to one billion birds are killed every year from colliding with human-built structures. I explored factors influencing the inability of birds to avoid man-made structures. If we can better understand these reasons, we can find solutions to this problem. After a known bird avoidance method, fritted glass, was installed in the Wold building, I investigated whether this glass actually deters birds from striking windows. Strikes on windows were noted daily through observation of specific windows on campus. Results show that vegetation outside of windows …
Comparative Embryotoxicity Of A Pentabrominated Diphenyl Ether Mixture To Common Terns (Sterna Hirundo) And American Kestrels (Falco Sparverius), Barnett A. Rattner, Rebecca S. Lazarus, Gary H. Heinz, Natalie K. Karouna-Renier, Sandra L. Schultz, Robert C. Hale
Comparative Embryotoxicity Of A Pentabrominated Diphenyl Ether Mixture To Common Terns (Sterna Hirundo) And American Kestrels (Falco Sparverius), Barnett A. Rattner, Rebecca S. Lazarus, Gary H. Heinz, Natalie K. Karouna-Renier, Sandra L. Schultz, Robert C. Hale
United States Geological Survey: Staff Publications
Concentrations of polybrominated diphenyl ethers (PBDEs) in Forster’s tern (Sterna forsteri) eggs from San Francisco Bay have been reported to range up to 63 µg g-1 lipid weight. This value exceeds the lowest-observed-adverse-effect level (1.8 µg g-1 egg wet weight; ~32 µg g-1 lipid weight) reported in an embryotoxicity study with American kestrels (Falco sparverius). As a surrogate for Forster’s terns, common tern (Sterna hirundo) eggs were treated by air cell injection with corn oil vehicle (control) or a commercial penta-BDE formulation (DE-71) at nominal concentrations of 0.2, 2, and 20 µg g …
Predictors Of Regional Establishment Success And Spread Of Introduced Non-Indigenous Vertebrates, Criag R. Allen, Kristine T. Nemec, Donald A. Wardwell, Justin D. Hoffman, Mathew L. Brust, Karie L. Decker, Daniel Fogell, Jennifer Hogue, Aaron Lotz, Thaddeus Miller, Marcy Pummill, Luis E. Ramirez-Yañez, Daniel R. Uden
Predictors Of Regional Establishment Success And Spread Of Introduced Non-Indigenous Vertebrates, Criag R. Allen, Kristine T. Nemec, Donald A. Wardwell, Justin D. Hoffman, Mathew L. Brust, Karie L. Decker, Daniel Fogell, Jennifer Hogue, Aaron Lotz, Thaddeus Miller, Marcy Pummill, Luis E. Ramirez-Yañez, Daniel R. Uden
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
Aim To provide the first analysis of predictors of both establishment and spread, both within and across taxa, for all vertebrate taxa within a region.We used Florida, USA, as our study system because it has a well-documented history of introduction and invasion, and is a hotspot for biological invasions.
Location Florida, USA.
Methods We analysed non-indigenous species (NIS) data from peninsular Florida – which included both successful and unsuccessful introductions from all vertebrate classes – to determine the best predictors of both establishment and spread for fish (65 species), herpetofauna (63 species), birds (71 species) and mammals (25 species). We …
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 …
Critique On The Use Of The Standardized Avian Acute Oral Toxicity Test For First Generation Anticoagulant Rodenticides, Nimish B. Vyas, Barnett A. Rattner
Critique On The Use Of The Standardized Avian Acute Oral Toxicity Test For First Generation Anticoagulant Rodenticides, Nimish B. Vyas, Barnett A. Rattner
United States Geological Survey: Staff Publications
Avian risk assessments for rodenticides are often driven by the results of standardized acute oral toxicity tests without regards to a toxicant’s mode of action and time course of adverse effects. First generation anticoagulant rodenticides (FGARs) generally require multiple feedings over several days to achieve a threshold concentration in tissue and cause adverse effects. This exposure regimen is much different than that used in the standardized acute oral toxicity test methodology. Median lethal dose values derived from standardized acute oral toxicity tests underestimate the environmental hazard and risk of FGARs. Caution is warranted when FGAR toxicity, physiological effects, and pharmacokinetics …
Cost-Effective Conservation: Calculating Biodiversity And Logging Trade-Offs In Southeast Asia, Brendan Fisher, David P. Edwards, Trond H. Larsen, Felicity A. Ansell, Wayne W. Hsu, Carter S. Roberts, David S. Wilcove
Cost-Effective Conservation: Calculating Biodiversity And Logging Trade-Offs In Southeast Asia, Brendan Fisher, David P. Edwards, Trond H. Larsen, Felicity A. Ansell, Wayne W. Hsu, Carter S. Roberts, David S. Wilcove
Rubenstein School of Environment and Natural Resources Faculty Publications
The Sundaland Biodiversity Hotspot of Southeast Asia is widely regarded as one of the most imperiled biodiversity hotspots due to high degrees of endemism coupled with extensive logging and forest conversion to oil palm. The large financial returns to these activities have made it difficult to conserve much of the region's lowland primary forest, suggesting a large trade-off between economic interests and biodiversity conservation. Here, we provide an empirical examination of the magnitude of this trade-off in Borneo. By incorporating both financial values and biodiversity responses across logging regimes, we show that selectively logged forests represent a surprisingly low-cost option …
A Comparison Of Ecological Conditions And Relationships In An Altered Wetland And An Unaltered Wetland, Mark Kiyoshi Hurst
A Comparison Of Ecological Conditions And Relationships In An Altered Wetland And An Unaltered Wetland, Mark Kiyoshi Hurst
USF Tampa Graduate Theses and Dissertations
The purpose of the study is to identify and quantify the hydrologic and ecologic differences between two adjacent sections of Colt Creek; one section unaltered and one section altered by clearing and drainage. These differences were measured by monitoring water levels, groundcover vegetation in each of the two areas, and monitoring numbers and species of birds utilizing the two areas. Surface water levels were measured in three locations: in the historic Colt Creek flow way, in the ditch draining the creek, and in an adjacent wetland strand. In addition, a shallow monitor well in the creek was used to measure …
Effects Of Drought On Avian Community Structure, Thomas P. Albright, Anna M. Pidgeon, Chadwick D. Rittenhouse, Murray K. Clayton, Curtis H. Flather, Patrick D. Culbert, Brian D. Wardlows, Volker C. Radeloff
Effects Of Drought On Avian Community Structure, Thomas P. Albright, Anna M. Pidgeon, Chadwick D. Rittenhouse, Murray K. Clayton, Curtis H. Flather, Patrick D. Culbert, Brian D. Wardlows, Volker C. Radeloff
Drought Mitigation Center: Faculty Publications
Droughts are expected to become more frequent under global climate change. Avifauna depend on precipitation for hydration, cover, and food. While there are indications that avian communities respond negatively to drought, little is known about the response of birds with differing functional and behavioral traits, what time periods and indicators of drought are most relevant, or how response varies geographically at broad spatial scales. Our goals were thus to determine (1) how avian abundance and species richness are related to drought, (2) whether community variations are more related to vegetation vigor or precipitation deviations and at what time periods relationships …
Absorption And Biotransformation Of Polybrominated Diphenyl Ethers De-71 And De-79 In Chicken (Gallus Gallus), Mallard (Anas Platyrhynchos), American Kestrel (Falco Sparverius) And Black-Crowned Night-Heron (Nycticorax Nycticorax) Eggs, Moira A. Mckernan, Barnett A. Rattner, Jeff S. Hatfield, Robert C. Hale, Mary Ann Ottinger
Absorption And Biotransformation Of Polybrominated Diphenyl Ethers De-71 And De-79 In Chicken (Gallus Gallus), Mallard (Anas Platyrhynchos), American Kestrel (Falco Sparverius) And Black-Crowned Night-Heron (Nycticorax Nycticorax) Eggs, Moira A. Mckernan, Barnett A. Rattner, Jeff S. Hatfield, Robert C. Hale, Mary Ann Ottinger
United States Geological Survey: Staff Publications
We recently reported that air cell administration of penta-brominated diphenyl ether (penta-BDE; DE-71) evokes biochemical and immunologic effects in chicken (Gallus gallus) embryos at very low doses, and impairs pipping (i.e., stage immediately prior to hatching) and hatching success at 1.8 µg g-1 egg (actual dose absorbed) in American kestrels (Falco sparverius). In the present study, absorption of polybrominated diphenyl ether (PBDE) congeners was measured following air cell administration of a penta-BDE mixture (11.1 lg DE-71 g-1 egg) or an octa-brominated diphenyl ether mixture (octa BDE; DE-79; 15.4 lg DE-79 g- …
Non-Blackbird Avian Occurrence And Abundance In North Dakota Sunflower Fields, Dionn A. Schaaf, George M. Linz, Curt Doetkott, Mark W. Lutman, William J. Bleier
Non-Blackbird Avian Occurrence And Abundance In North Dakota Sunflower Fields, Dionn A. Schaaf, George M. Linz, Curt Doetkott, Mark W. Lutman, William J. Bleier
The Prairie Naturalist
Sunflower fields are well-documented as foraging habitat for fallmigrating blackbirds (Family Icteridae). There is, however, a paucity of information on the use of sunflower fields by non-blackbirds. We assessed non-blackbird use of 12 ripening sunflower fields in the Prairie Pothole Region of central North Dakota. From mid-August to mid-October 2000, we counted 4,129 individual birds, consisting of 22 families and 61 species, in the sample fields and within 5 m of the field edges. We saw the largest number of birds from 18 September to 27 September. The Family Emberizidae (sparrows) accounted for 26% of the species and 20% of …
Slides: Threats To Biological Diversity: Global, Continental, Local, J. Michael Scott
Slides: Threats To Biological Diversity: Global, Continental, Local, J. Michael Scott
Shifting Baselines and New Meridians: Water, Resources, Landscapes, and the Transformation of the American West (Summer Conference, June 4-6)
Presenter: J. Michael Scott, U.S. Geological Survey, Idaho Cooperative Fish and Wildlife Research Unit, University of Idaho
38 slides
Crop Diversification Leads To Diverse Bird Problems In Hawaiian Agriculture, Marni E. Koopman, William C. Pitt
Crop Diversification Leads To Diverse Bird Problems In Hawaiian Agriculture, Marni E. Koopman, William C. Pitt
USDA Wildlife Services: Staff Publications
Over the last 20 years, Hawaii’s agriculture has shifted from a focus on sugar cane (Saccharum officinarum) and pineapples (Ananas comosus) produced on large farms to a diverse array of products produced on a multitude of smaller farms. This dramatic shift in production, in addition to the introduction of many new avian species, has resulted in a concomitant change in the problems faced by agriculture. We surveyed farmers to determine the extent of bird damage to crops, the species responsible, the crops most vulnerable, and control methods employed. Bird problems varied by island, but cardinals ( …
A Review Of Shiga Toxin Escherichia Coli And Salmonella Enterica In Cattle And Free-Ranging Birds: Potential Association And Epidemiological Links, Kerri Pedersen, Larry Clark
A Review Of Shiga Toxin Escherichia Coli And Salmonella Enterica In Cattle And Free-Ranging Birds: Potential Association And Epidemiological Links, Kerri Pedersen, Larry Clark
USDA Wildlife Services: Staff Publications
Cattle are the main reservoir for human infection by pathogenic Escherichia coli and Salmonello enterico. To prevent entry of these foodborne pathogens into the human food chain, management factors at the farm level must be identified and controlled. External sources of contamination, such as birds, should be considered as potential sources of transmission over long distances. In this review, we focus on the epidemiology of infection by E. coli and S. enterica and the consequences of birds acting as disseminators of these pathogens at dairy farms in terms of cattle health and the subsequent effects on human health.