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Introduction One Health: More Than Just A Catch Phrase!, Sherman W. Jack Jan 2012

Introduction One Health: More Than Just A Catch Phrase!, Sherman W. Jack

Human–Wildlife Interactions

No abstract provided.

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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, …

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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 …

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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, …

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Serologic Evidence Of Brucella And Pseudorabies In Mississippi Feral Swine, Sherman W. Jack, James C. Cumbee Jr., Kristina C. Godwin Jan 2012

Serologic Evidence Of Brucella And Pseudorabies In Mississippi Feral Swine, Sherman W. Jack, James C. Cumbee Jr., Kristina C. Godwin

Human–Wildlife Interactions

Feral swine (Sus scrofa) are an ever-increasing problem across the United States. Besides physical environmental damage that they cause, they may harbor and transmit a number of pathogens to humans, livestock, and other domestic animals. We sampled feral swine across the state of Mississippi for titers to several diseases. Antibodies against Brucella were found in 16 of 499 (3.2%) feral swine, and antibodies against pseudorabies (porcine herpes virus, type 1; Herpesveridae sp.) virus were identified in 37 of 499 (7.4%) feral swine from across the state of Mississippi. Evidence of classical swine fever, African swine fever, swine influenza, …

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Lead From Spent Ammunition: A Source Of Exposure And Poisoning In Bald Eagles, Luis Cruz-Martinez, Patrick T. Redig, John Deen Jan 2012

Lead From Spent Ammunition: A Source Of Exposure And Poisoning In Bald Eagles, Luis Cruz-Martinez, Patrick T. Redig, John Deen

Human–Wildlife Interactions

Ongoing occurrence of elevated levels of lead in bald eagles (Haliaeetus leucocephalus) following the ban on lead shot for waterfowl hunting led us to hypothesize that spent lead from ammunition, which is present in field residues of white-tailed deer (Odocoileus virginianus), represented a source of lead exposure in eagles. We conducted a case-control study using data from 1,277 bald eagles admitted for rehabilitation from January 1996 through December 2009. A multivariate logistic regression model was used to predict the odds of elevated lead levels using admission date in relation to deer hunting season, recovery location in …

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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:

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Effects Of Hikers And Boats On Tule Elk Behavior In A National Park Wilderness Area, Benjamin H. Becker, Christopher M. Moi, Thomas J. Maguire, Robert Atkinson, Natalie B. Gates Jan 2012

Effects Of Hikers And Boats On Tule Elk Behavior In A National Park Wilderness Area, Benjamin H. Becker, Christopher M. Moi, Thomas J. Maguire, Robert Atkinson, Natalie B. Gates

Human–Wildlife Interactions

Human disturbance of wildlife may cause disruption of normal feeding, resting, reproduction, or care for juveniles. Such disturbance may be particularly undesirable in federally managed wilderness areas designed to minimize human influences on natural resources. We recorded tule elk (Cervus elephus nannodes) responses (standing, walking away, running) to off-trail hikers, off-shore boats, and other natural and anthropogenic factors in Point Reyes National Seashore in northern California during 2002 to 2008. Most disturbance behaviors were related to other elk exhibiting rutting behaviors, but off-trail hikers still explained a 100% increase and off-shore boats a 15% increase in baseline disturbance …

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Management Of Double-Crested Cormorants To Improve Sport Fisheries In Michigan: Three Case Studies, Brian S. Dorr, Shauna L. Hanisch, Peter H. Butchko, David G. Fielder Jan 2012

Management Of Double-Crested Cormorants To Improve Sport Fisheries In Michigan: Three Case Studies, Brian S. Dorr, Shauna L. Hanisch, Peter H. Butchko, David G. Fielder

Human–Wildlife Interactions

Impacts of double-crested cormorants (Phalacrocorax auritus) to fisheries have been documented, but evaluation of the process and outcomes of cormorant management to reduce impacts on fisheries is lacking. We provide a synthesis of adaptive management of double-crested cormorants in the Les Cheneaux Islands (LCI), Brevoort Lake, and Drummond Island, Michigan from 2004 to 2007. The LCI management focused on reducing numbers of nesting cormorants in the region as a means of improving the yellow perch (Perca flavescens) population and fishery. At Brevoort Lake and Drummond Island, management focused on lethal and nonlethal harassment of spring migrating …

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Excluding Feral Swine, Javelinas, And Raccoons From Deer Bait Stations, J. Mathews Pound, Kimberly H. Lohmeyer, Ronald B. Davey, Lisa A. Soliz, Pia U. Olafson Jan 2012

Excluding Feral Swine, Javelinas, And Raccoons From Deer Bait Stations, J. Mathews Pound, Kimberly H. Lohmeyer, Ronald B. Davey, Lisa A. Soliz, Pia U. Olafson

Human–Wildlife Interactions

No abstract provided.

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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 …

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Examining A Potential Brown Treesnake Transport Pathway: Shipments From Guam, Samantha Sue Kahl, Scott E. Henke, Marc A. Hall, Andrea R. Litt, Gad Perry, David K. Britton Jan 2012

Examining A Potential Brown Treesnake Transport Pathway: Shipments From Guam, Samantha Sue Kahl, Scott E. Henke, Marc A. Hall, Andrea R. Litt, Gad Perry, David K. Britton

Human–Wildlife Interactions

Shipments of cargo and household goods have been identified as pathways for brown treesnake (Boiga irregularis) transport from Guam to other locations. We analyzed data regarding shipments of military household goods leaving Guam during 2006 to 2009 to identify the potential for human transport of brown treesnakes to the United States by determining when shipments most commonly occur and identifying primary receiving areas. We found that the number of shipments was highest during the months of May and June and that California receives more shipments (23% of total shipments) than any other location. Approximately 98% of shipments originated …

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Efficacy Of Aerial Broadcast Baiting In Reducing Brown Treesnake Numbers, Larry Clark, Peter J. Savarie Jan 2012

Efficacy Of Aerial Broadcast Baiting In Reducing Brown Treesnake Numbers, Larry Clark, Peter J. Savarie

Human–Wildlife Interactions

The brown treesnake (Boiga irregularis) is an invasive predator that was introduced on Guam as a stowaway in cargo after World War II. Since then, the population has exploded, attaining 50 to 100 snakes per ha in some areas. The snake has caused the extirpation of ten of the 12 native forest bird species on Guam. The U.S. Department of Agriculture, Wildlife Services, has a program to deter the spread of snakes from Guam to other islands. Hand capture from fences, trapping, toxic bait stations, and canine inspection of outbound cargo methods are used in the control program …

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Efficacy, Effort, And Cost Comparisons Of Trapping And Acetaminophen-Baiting For Control Of Brown Treesnakes On Guam, Larry Clark, Peter J. Savarie, John A. Shivik, Stewart W. Breck, Brian S. Dorr Jan 2012

Efficacy, Effort, And Cost Comparisons Of Trapping And Acetaminophen-Baiting For Control Of Brown Treesnakes On Guam, Larry Clark, Peter J. Savarie, John A. Shivik, Stewart W. Breck, Brian S. Dorr

Human–Wildlife Interactions

Brown treesnakes (Boiga irregularis) are an invasive species to the island of Guam. Because they have extirpated the native forest avifauna on Guam and are a threat to other Pacific islands, the development of efficient and cost-effective methods to control them is desired. We compared the efficacy, cost, and effort required to remove brown treesnakes on 6-ha plots in forest scrub on Guam, using 2 methods: trapping and poison baiting. Toxic baits consisted of dead neonatal mice adulterated with 80-mg acetaminophen. To assess efficacy, we used mark-recapture methods to estimate snake abundance on plots 12 days before and 12 days …

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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 …

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Sterilization As An Alternative Deer Control Technique: A Review, Jason R. Boulanger, Paul D. Curtis, Evan G. Cooch, Anthony J. Denicola Jan 2012

Sterilization As An Alternative Deer Control Technique: A Review, Jason R. Boulanger, Paul D. Curtis, Evan G. Cooch, Anthony J. Denicola

Human–Wildlife Interactions

Burgeoning white-tailed deer (Odocoileus virginianus) populations in suburban landscapes continue to impact communities and challenge natural resource managers. Increased deer-related damage to vegetation, ecosystems, and automobiles can exceed the tolerance of local stakeholders. We provide an overview of the potential efficacy of using surgical sterilization to help manage populations and conflicts associated with locally overabundant white-tailed deer populations. We review theoretical and fi eld studies pertaining to deer sterilization, and provide research priorities to help guide future sterilization efforts. Recent fi eld studies suggest that sterilization of female deer remains expensive, at approximately $1,000 per surgery. Sterilization may …

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The Role, Size, And Effectiveness Of Safety Zones For Creating Refuges For White-Tailed Deer, Jacob L. Bowman Jan 2012

The Role, Size, And Effectiveness Of Safety Zones For Creating Refuges For White-Tailed Deer, Jacob L. Bowman

Human–Wildlife Interactions

White-tailed deer (Odocoileus virginianus) are overabundant in many areas, particularly in more developed landscapes where refuges may provide additional challenges for deer managers. Refuges have been widely used to sustain breeding stock in harvested populations and to mitigate other sources of mortality. As the landscape becomes more urbanized, local municipalities and states have implemented safety zones to reduce the probability of a hunter’s projectile from accidentally striking a building or its inhabitants. I evaluated if mandated safety zones in Delaware may constitute unintentional refuges. I used Delaware’s land-cover data to created buffers (i.e., 46, 91, and 183 m) …

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Effects Of Grassland Alteration From Mowing And Fire On Bird Activity At A Colorado Airfield, Kara A. Carragher, Rick M. Clawges, Rick L. Bunn, Helen K. Pigage, Jon C. Pigage Jan 2012

Effects Of Grassland Alteration From Mowing And Fire On Bird Activity At A Colorado Airfield, Kara A. Carragher, Rick M. Clawges, Rick L. Bunn, Helen K. Pigage, Jon C. Pigage

Human–Wildlife Interactions

Grass management has been used for many years at airports in an attempt to reduce numbers of birds and other wildlife and the collisions with aircraft associated with them. We evaluated the impacts of grassland alteration by mowing and fi re on the abundance, diversity, and frequency of birds using 1 control and 2 experimental grass plots from 2009 to 2010 on a U.S. Army airfield in Colorado located in short-grass prairie. Density of breeding birds was highest in the mowed plot. Numbers of birds observed in 34 surveys conducted during the non-breeding season in the burned (x = 41) …

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Mixed-Breed Guarding Dogs Reduce Conflict Between Goat Herders And Native Carnivores In Patagonia, Alejandro González, Andrés Novaro, Martín Funes, Oscar Pailacura, María Jose Bolgeri, Susan Walker Jan 2012

Mixed-Breed Guarding Dogs Reduce Conflict Between Goat Herders And Native Carnivores In Patagonia, Alejandro González, Andrés Novaro, Martín Funes, Oscar Pailacura, María Jose Bolgeri, Susan Walker

Human–Wildlife Interactions

Goat husbandry is the main rural livelihood in the northern Patagonian steppe of Argentina, and herders kill any carnivore that they believe threatens their herds, including the endangered Andean cat (Leopardus jacobita). We evaluated the use of local, mediumsized, mixed-breed guarding dogs to reduce predation and retaliatory killing of carnivores. We interviewed 64 herders, and delivered 37 puppies to 25 herders. Most economic loss was attributed to cougars (Puma concolor) and culpeos (Lycalopex culpaeus). All herders with dogs that reached the working stage reported reduced rates of predation, and 88% reported that they no …

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Commentary: Some Successful Methods To Mitigate Conflicts Caused By Common Ravens In An Industrial Environment, Rod J. Merrell Jan 2012

Commentary: Some Successful Methods To Mitigate Conflicts Caused By Common Ravens In An Industrial Environment, Rod J. Merrell

Human–Wildlife Interactions

No abstract provided.

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Geographical Assessment Of Microalgae Biofuels Potential Incorporating Resource Availability, Jason C. Quinn, Kimberly Catton, Sara Johnson, Thomas H. Bradley Jan 2012

Geographical Assessment Of Microalgae Biofuels Potential Incorporating Resource Availability, Jason C. Quinn, Kimberly Catton, Sara Johnson, Thomas H. Bradley

Mechanical and Aerospace Engineering Faculty Publications

Previous assessments of the economic feasibility and large-scale productivity of microalgae biofuels have not considered the impacts of land and carbon dioxide (CO2) availability on the scalability of microalgae-based biofuels production. To accurately assess the near-term productivity potential of large-scale microalgae biofuel in the US, a geographically realized growth model was used to simulate microalgae lipid yields based on meteorological data. The resulting lipid productivity potential of Nannochloropsis under large-scale cultivation is combined with land and CO2 resource availability illustrating current geographically feasible production sites and corresponding productivity in the US. Baseline results show that CO2 transport constraints will limit …

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Analysis Of The Lactobacilluscasei Supragenome And Its Influence In Species Evolution And Lifestyle Adaptation, Jeff Broadbent, E. C. Neeno-Eckwall, B. Stahl, K. Tandee, H. Cai, W. Morovic, P. Horvath, J. Heidenreich, N. T. Perna, R. Barrangou, J. L. Steele Jan 2012

Analysis Of The Lactobacilluscasei Supragenome And Its Influence In Species Evolution And Lifestyle Adaptation, Jeff Broadbent, E. C. Neeno-Eckwall, B. Stahl, K. Tandee, H. Cai, W. Morovic, P. Horvath, J. Heidenreich, N. T. Perna, R. Barrangou, J. L. Steele

Nutrition, Dietetics, and Food Sciences Faculty Publications

The broad ecological distribution of L. casei makes it an insightful subject for research on genome evolution and lifestyle adaptation. To explore evolutionary mechanisms that determine genomic diversity of L. casei, we performed comparative analysis of 17 L. casei genomes representing strains collected from dairy, plant, and human sources. Results Differences in L. casei genome inventory revealed an open pan-genome comprised of 1,715 core and 4,220 accessory genes. Extrapolation of pan-genome data indicates L. casei has a supragenome approximately 3.2 times larger than the average genome of individual strains. Evidence suggests horizontal gene transfer from other bacterial species, particularly lactobacilli, …

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Effect Of Silicon On Plant Growth And Drought Stress Tolerance, Kaerlek W. Janislampi Jan 2012

Effect Of Silicon On Plant Growth And Drought Stress Tolerance, Kaerlek W. Janislampi

Publications

Silicon is not considered an essential nutrient, but it is typically abundant in soils and can be taken up in large amounts by plants. Silicon is known to have beneficial effects when added to rice and several other plants. These effects include disease and insect resistance, structural fortification, and regulation of the uptake of other ions. In this study, the effect of silicic acid fertilization on the growth and drought tolerance of four crop plants (corn, wheat, soybean, and rice) was analyzed. Plants were studied using three cultivation techniques: 1) hydroponic solution and subjected to salt stress, 2) low-silicon soil-less …

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Strong Self-Limitation Promotes The Persistence Ofrare Species, G. M. Yenni, P. B. Adler, S.K. Morgan Ernest Jan 2012

Strong Self-Limitation Promotes The Persistence Ofrare Species, G. M. Yenni, P. B. Adler, S.K. Morgan Ernest

Biology Faculty Publications

Theory has recognized a combination of niche and neutral processes each contributing, with varying importance, to species coexistence. However, long-term persistence of rare species has been difficult to produce in trait-based models of coexistence that incorporate stochastic dynamics, raising questions about how rare species persist despite such variability. Following recent evidence that rare species may experience significantly different population dynamics than dominant species, we use a plant community model to simulate the effect of disproportionately strong negative frequency dependence on the long-term persistence of the rare species in a simulated community. This strong self-limitation produces long persistence times for the …

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An Improved Competitive Inhibition Enzymatic Immunoassay Method For Tetrodotoxin Quantification, James P. Strange, Becky L. Williams, Susannah S. French Jan 2012

An Improved Competitive Inhibition Enzymatic Immunoassay Method For Tetrodotoxin Quantification, James P. Strange, Becky L. Williams, Susannah S. French

Biology Faculty Publications

Quantifying tetrodotoxin (TTX) has been a challenge in both ecological and medical research due to the cost, time and training required of most quantification techniques. Here we present a modified Competitive Inhibition Enzymatic Immunoassay for the quantification of TTX, and to aid researchers in the optimization of this technique for widespread use with a high degree of accuracy and repeatability.

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Interfamily Variation In Amphibian Early Life-History Traits: Raw Material For Natural Selection?, Gareth R. Hopkins, Brian G. Gall, Susannah S. French, Edmund D. Brodie Jr. Jan 2012

Interfamily Variation In Amphibian Early Life-History Traits: Raw Material For Natural Selection?, Gareth R. Hopkins, Brian G. Gall, Susannah S. French, Edmund D. Brodie Jr.

Biology Faculty Publications

The embryonic development and time to hatching of eggs can be highly adaptive in some species, and thus under selective pressure. In this study, we examined the underlying interfamily variation in hatching timing and embryonic development in a population of an oviparous amphibian, the rough-skinned newt (Taricha granulosa). We found significant, high variability in degree of embryonic development and hatching timing among eggs from different females. Patterns of variation were present regardless of temperature.We also could not explain the differences among families by morphological traits of the females or their eggs. This study suggests that the variation necessary for natural …

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Hydrologic Efficiency In Water Conservation, L. Douglas James Jan 2012

Hydrologic Efficiency In Water Conservation, L. Douglas James

Reports

Introduction: The hydrologic cycle can be subdivided into three phases: 1)Humidity is transported within the atmosphere and becomes precipitation, and 2) Water moves downhill until eventually reaching the sea while all the time 3) Evapotranspiration returns exposed moisture to the atmosphere. During its movement, flowing water transports suspended sediments and dissolved minerals to reshape landforms and redistribute the mineral composition of the earth's surface throughout geologic time. It is during the second phase that flowing water can be diverted for uses that generally add to evaportranspiration (through consumptive use) and transport (through waste disposal). The water resources development that serves …

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Solving Problems In Water Quality, Utah Water Research Laboratory Jan 2012

Solving Problems In Water Quality, Utah Water Research Laboratory

Reports

No abstract provided.

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Cee & Uwrl Research In Action, Utah Water Research Laboratory Jan 2012

Cee & Uwrl Research In Action, Utah Water Research Laboratory

Reports

Introduction: The Department of Civil and Environmental Engineer (CEE) and the Utah Water Research Laboratory (UWRL) have a symbiotic working relationship. The CEE Department provides the pricipal investigators with academic affiliation to the university while the UWRL provides faculty with a strong water research arena. Both the CEE department and the UWRL have been involved in research and problem solving for government agencies and private industry.

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Methodological Tools, Ethan P. White, Xiao Xiao, J. B. Nick, Richard M. Sibly Jan 2012

Methodological Tools, Ethan P. White, Xiao Xiao, J. B. Nick, Richard M. Sibly

Biology Faculty Publications

Methodological approaches for comparing metabolic theory predictions to empirical data fall into two general categories: 1) determining if the general functional form of a relationship predicted by the theory is valid; and 2) determining whether the observed values of the parameters match the specific quantitative predictions made by the theory. Both of these categories of analysis rely on being able to accurately determine the best fitting form of a model with the same general functional form as that of MTE, so we will begin by discussing how this has typically been done using OLS regression on appropriately transformed data. Potential …

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