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Patuxent’S American Black Duck Studies From Chesapeake Bay To Maine And Beyond, Jerry R. Longcore Jan 2016

Patuxent’S American Black Duck Studies From Chesapeake Bay To Maine And Beyond, Jerry R. Longcore

United States Geological Survey: Staff Publications

The information in this chapter draws on published literature and unpublished reports written by staff members of the U.S. Geological Survey, Patuxent Wildlife Research Center (Patuxent), during its 75-year history. Reports by Bureau of Biological Survey (Biological Survey) and U.S. Fish and Wildlife Service (USFWS) personnel are included because the research entity currently known as Patuxent was formerly administered by these agencies. Some of the cited reports were prepared by USFWS scientists while they were not working at Patuxent. Literature resulting from work at other Federal and State agencies and private and academic institutions that influenced research at Patuxent on …

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The Migratory Bird And Habitat Research Laboratory And The Accelerated Research Program, Richard A. Coon Jan 2016

The Migratory Bird And Habitat Research Laboratory And The Accelerated Research Program, Richard A. Coon

United States Geological Survey: Staff Publications

The Patuxent Wildlife Research Center (Patuxent) housed two important programs that were not supervised through the office of the Director of Patuxent during the 1960s and 1970s. Although they received administrative support from Patuxent, they were supervised from the U.S. Fish and Wildlife Service (USFWS) headquarters in Washington, D.C. One, the Migratory Bird Populations Station (MBPS), was established in 1961; the other, the Migratory Bird and Habitat Research Laboratory (MBHRL), was established in 1972 (Perry, 2004). This chapter briefly discusses MBPS and how some of its functions were transferred to MBHRL when this new laboratory was created.

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Non-Linear Responses Of Glaciated Prairie Wetlands To Climate Warming, W. Carter Johnson, Brett Werner, Glenn R. Guntenspergen Jan 2016

Non-Linear Responses Of Glaciated Prairie Wetlands To Climate Warming, W. Carter Johnson, Brett Werner, Glenn R. Guntenspergen

United States Geological Survey: Staff Publications

The response of ecosystems to climate warming is likely to include threshold events when small changes in key environmental drivers produce large changes in an ecosystem. Wetlands of the Prairie Pothole Region (PPR) are especially sensitive to climate variability, yet the possibility that functional changes may occur more rapidly with warming than expected has not been examined or modeled. The productivity and biodiversity of these wetlands are strongly controlled by the speed and completeness of a vegetation cover cycle driven by the wet and dry extremes of climate. Two thresholds involving duration and depth of standing water must be exceeded …

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Pranked By Audubon: Constantine S. Rafinesque’S Description Of John James Audubon’S Imaginary Kentucky Mammals, Neal Woodman Jan 2016

Pranked By Audubon: Constantine S. Rafinesque’S Description Of John James Audubon’S Imaginary Kentucky Mammals, Neal Woodman

United States Geological Survey: Staff Publications

The North American naturalist Constantine S. Rafinesque spent much of the year 1818 engaged in a solo journey down the Ohio River Valley to explore parts of what was then the western United States. Along the way, he visited a number of fellow naturalists, and he spent more than a week at the Henderson, Kentucky, home of artist and ornithologist John James Audubon. During the succeeding two years, Rafinesque published descriptions of new species that resulted from his expedition, including eleven species of fishes that eventually proved to have been invented by Audubon as a prank on the credulous naturalist. …

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Non-Linear Responses Of Glaciated Prairie Wetlands To Climate Warming, W. Carter Johnson, Brett Werner, Glenn R. Guntenspergen Jan 2016

Non-Linear Responses Of Glaciated Prairie Wetlands To Climate Warming, W. Carter Johnson, Brett Werner, Glenn R. Guntenspergen

United States Geological Survey: Staff Publications

The response of ecosystems to climate warming is likely to include threshold events when small changes in key environmental drivers produce large changes in an ecosystem. Wetlands of the Prairie Pothole Region (PPR) are especially sensitive to climate variability, yet the possibility that functional changes may occur more rapidly with warming than expected has not been examined or modeled. The productivity and biodiversity of these wetlands are strongly controlled by the speed and completeness of a vegetation cover cycle driven by the wet and dry extremes of climate. Two thresholds involving duration and depth of standing water must be exceeded …

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Pranked By Audubon: Constantine S. Rafinesque’S Description Of John James Audubon’S Imaginary Kentucky Mammals, Neal Woodman Jan 2016

Pranked By Audubon: Constantine S. Rafinesque’S Description Of John James Audubon’S Imaginary Kentucky Mammals, Neal Woodman

United States Geological Survey: Staff Publications

The North American naturalist Constantine S. Rafinesque spent much of the year 1818 engaged in a solo journey down the Ohio River Valley to explore parts of what was then the western United States. Along the way, he visited a number of fellow naturalists, and he spent more than a week at the Henderson, Kentucky, home of artist and ornithologist John James Audubon. During the succeeding two years, Rafinesque published descriptions of new species that resulted from his expedition, including eleven species of fishes that eventually proved to have been invented by Audubon as a prank on the credulous naturalist. …

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Tick-, Mosquito-, And Rodent-Bourne Parasite Sampling Designs For The National Ecological Observatory Network, Yuri Springer, David Hoekman, Pieter T.J. Johnson, Paul A. Duffy, Rebecca A. Hufft, Holly D. Gaff Jan 2016

Tick-, Mosquito-, And Rodent-Bourne Parasite Sampling Designs For The National Ecological Observatory Network, Yuri Springer, David Hoekman, Pieter T.J. Johnson, Paul A. Duffy, Rebecca A. Hufft, Holly D. Gaff

Biological Sciences Faculty Publications

Parasites and pathogens are increasingly recognized as significant drivers of ecological and evolutionary change in natural ecosystems. Concurrently, transmission of infectious agents among human, livestock, and wildlife populations represents a growing threat to veterinary and human health. In light of these trends and the scarcity of long-term time series data on infection rates among vectors and reservoirs, the National Ecological Observatory Network (NEON) will collect measurements and samples of a suite of tick-, mosquito-, and rodent-borne parasites through a continental-scale surveillance program. Here, we describe the sampling designs for these efforts, highlighting sampling priorities, field and analytical methods, and the …

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Red List Of Marine Bony Fishes Of The Eastern Central Atlantic, Beth Polidoro, Gina Ralph, Kyle Strongin, Michael Harvey, Kent Carpenter, Titus Ayo Adeofe, Rachel Arnold, Paul Bannerman, Jean Noel Bibang Bi Nguema, Jack Buchanan, Khairdine Mohamed Abdallahi Camara, Youssouf Hawa Camara, Kadiatou Cissoko, Bruce B. Collette, Mia T. Comeros-Raynal, Godefroy De Bruyne, Madeleine Diouf, Roger Djiman, Mathieu Ducrocq, Ofer Gon, Antony S. Harold, Heather Harwell, Craig Hilton-Taylor, Andrew Hines, P. Alexander Hulley, Tomio Iwamoto, Steen Knudsen, Jean De Dieu Lewembe, Christi Linardich, Ken Lindeman, Ebou Mass Mbye, Jean Egard Mikolo, Vanda Monteiro, Jean Bernard Mougoussi, Thomas Munroe, Jean Hervé Mve Beh, Francis K.E. Nunoo, Caroline Pollock, Stuart Poss, Richmond Quartey, Barry Russell, Alphonse Sagna, Catherine Sayer, Aboubacar Sidibe, William Smith-Vaniz, Emilie Stump, Mor Sylla, Luis Tito De Morais, Jean-Christophe Vié, Akanbi Williams Jan 2016

Red List Of Marine Bony Fishes Of The Eastern Central Atlantic, Beth Polidoro, Gina Ralph, Kyle Strongin, Michael Harvey, Kent Carpenter, Titus Ayo Adeofe, Rachel Arnold, Paul Bannerman, Jean Noel Bibang Bi Nguema, Jack Buchanan, Khairdine Mohamed Abdallahi Camara, Youssouf Hawa Camara, Kadiatou Cissoko, Bruce B. Collette, Mia T. Comeros-Raynal, Godefroy De Bruyne, Madeleine Diouf, Roger Djiman, Mathieu Ducrocq, Ofer Gon, Antony S. Harold, Heather Harwell, Craig Hilton-Taylor, Andrew Hines, P. Alexander Hulley, Tomio Iwamoto, Steen Knudsen, Jean De Dieu Lewembe, Christi Linardich, Ken Lindeman, Ebou Mass Mbye, Jean Egard Mikolo, Vanda Monteiro, Jean Bernard Mougoussi, Thomas Munroe, Jean Hervé Mve Beh, Francis K.E. Nunoo, Caroline Pollock, Stuart Poss, Richmond Quartey, Barry Russell, Alphonse Sagna, Catherine Sayer, Aboubacar Sidibe, William Smith-Vaniz, Emilie Stump, Mor Sylla, Luis Tito De Morais, Jean-Christophe Vié, Akanbi Williams

Biological Sciences Faculty Publications

The Red List of marine bony fishes of the Eastern Central Atlantic (ECA) is a review of the conservation status of all native marine bony fishes in ECA according to the global Categories and Criteria of the IUCN Red List of Threatened Species. It identifies those species that are threatened with extinction at the global level and occur within the ECA region. This comprehensive assessment, which is the first of its kind in the ECA, aims to provide improved knowledge of species presence and extinction risk status for the purposes of guiding conservation actions and improved policies for these species …

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Geospatial Approaches To Support Pelagic Conservation Planning And Adaptive Management, L. M. Wedding, Sara M. Maxwell, D. Hyrenbach, D. C. Dunn, J. J. Roberts, D. Briscoe, E. Hines, P. N. Halpin Jan 2016

Geospatial Approaches To Support Pelagic Conservation Planning And Adaptive Management, L. M. Wedding, Sara M. Maxwell, D. Hyrenbach, D. C. Dunn, J. J. Roberts, D. Briscoe, E. Hines, P. N. Halpin

Biological Sciences Faculty Publications

Place-based management in the open ocean faces unique challenges in delineating boundaries around temporally and spatially dynamic systems that span broad geographic scales and multiple management jurisdictions, especially in the 'high seas'. Geospatial technologies are critical for the successful design of pelagic conservation areas, because they provide information on the spatially and temporally dynamic oceanographic features responsible for driving species distribution and abundance in the open ocean, the movements of protected species, and the spatial patterns of distribution of potential threats. Nevertheless, there are major challenges to implementing these geospatial approaches in the open ocean. This Theme Section seeks to …

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Adsorption Of Antibiotics By Vermiculite, Mosa J. Ferdous Jan 2016

Adsorption Of Antibiotics By Vermiculite, Mosa J. Ferdous

Dissertations and Theses

The occurrence of residual antibiotics in the environment has been a worldwide issue and warrants the development of inexpensive yet effective methods for antibiotics removal from contaminated water. In this thesis work, the adsorption of four antibiotics, namely chlorotetracycline (CTC), oxytetracycline (OTC), ofloxacin (OFL), and enrofloxacin (ENR), onto natural vermiculite has been studied using batch (static) and column (dynamic) adsorption techniques. The Langmuir and Freundlich isotherm models were initially used to explain the adsorption processes. The separation factor (RL) values derived from the Langmuir model and the 1/n values derived from Freundlich model in the present investigation were less than …

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Revised Distributional Estimates For The Recently Discovered Olinguito (Bassaricyon Neblina), Using Museum And Science Records, Beth E. Gerstner Jan 2016

Revised Distributional Estimates For The Recently Discovered Olinguito (Bassaricyon Neblina), Using Museum And Science Records, Beth E. Gerstner

Dissertations and Theses

In the context of global change, a necessary first step for the conservation of species is gaining a good understanding of their distributional limits. This is especially important for biodiversity hotspots with high endemism such as the Northern Andes. The olinguito (Procyonidae: Bassaricyon neblina) is a recently described, medium-sized carnivoran found in Northern Andean cloud forests. A preliminary distributional model was published along with the original description, and I here provide revised distributional estimates using updated locality records and more current ENM methods. I build ecological niche models in Maxent using occurrence data (georeferenced museum records and citizen science-derived photo-vouchers) …

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Non-Point Sources And Point Sources For Nutrient And Fecal Microbe Contamination In A Typical Upland Stream: Tates Creek, Madison County, Kentucky, Walter S. Borowski, Malcolm P. Frisbie Jan 2016

Non-Point Sources And Point Sources For Nutrient And Fecal Microbe Contamination In A Typical Upland Stream: Tates Creek, Madison County, Kentucky, Walter S. Borowski, Malcolm P. Frisbie

EKU Faculty and Staff Scholarship

Tates Creek (Madison County, Kentucky) is characterized by an oversupply of nutrients and fecal microbe contamination. Its watershed is dominated by pastureland and immature woodlands with scattered settlements served by septic systems, whereas, 5% of the watershed drains urban areas of Richmond, Kentucky. Creek waters are eutrophic and commonly display levels of Escherichia coli deemed unfit for human contact by United States Environmental Protection Agency standards. Both point and non-point sources existed for stream contaminants. A secondary sewage treatment plant (STP) discharged effluent into the creek until mid-2011 and was a point source for nitrate and phosphate. Pastureland likely contributes …

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Evaluating Floating Treatment Wetlands To Improve Nitrogen Removal In A Wet Detention Pond, Zachary Marimon Jan 2016

Evaluating Floating Treatment Wetlands To Improve Nitrogen Removal In A Wet Detention Pond, Zachary Marimon

Electronic Theses and Dissertations

Wet detention ponds are used for stormwater treatment across the United States and reduce most pollutants by at least 60%, but only remove 30% of total nitrogen. Floating Treatment Wetlands (FTWs) are an emerging technology that uses aquatic plants suspended in the pelagic zone to remove nitrogen through vegetative assimilation and microbial denitrification. A before-after field experiment evaluated nitrogen removal in a an existing pond in Orlando, FL, retrofitted with BioHaven® FTWs planted with the aquatic macrophytes Juncus effusus (Soft Rush) and Pontederia cordata (Pickerelweed). Surface water samples were used to compare the nitrogen removal performance of the pond under …

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Trade-Offs Between Three Forest Ecosystem Services Across The State Of New Hampshire, Usa: Timber, Carbon, And Albedo, David A. Lutz, Elizabeth A. Burakowski, Mackenzie B. Murphy, Mark E. Borsuk Jan 2016

Trade-Offs Between Three Forest Ecosystem Services Across The State Of New Hampshire, Usa: Timber, Carbon, And Albedo, David A. Lutz, Elizabeth A. Burakowski, Mackenzie B. Murphy, Mark E. Borsuk

Dartmouth Scholarship

Forests are more frequently being managed to store and sequester carbon for the purposes of climate change mitigation. Generally, this practice involves long-term conservation of intact mature forests and/or reductions in the frequency and intensity of timber harvests. However, incorporating the influence of forest surface albedo often suggests that long rotation lengths may not always be optimal in mitigating climate change in forests characterized by frequent snowfall. To address this, we investigated trade-offs between three ecosystem services: carbon storage, albedo-related radiative forcing, and timber provisioning. We calculated optimal rotation length at 498 diverse Forest Inventory and Analysis forest sites in …

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A Few Notes On Nabokov's Childhood Entomology, Victor Fet Jan 2016

A Few Notes On Nabokov's Childhood Entomology, Victor Fet

Biological Sciences Faculty Research

Nabokov's lepidoptery long posed a question: Was he an amateur or a professional entomologist? Today, it has been amply demonstrated that he was a professional. Kurt Johnson says, "For Nabokov, as with many, fascination with the big picture books of butterflies as a young child grew to concerted collecting as a youngster. As with many scientists, these impressions of youth become a driving life force."3 Nabokov started collecting butterflies in 1906, at age seven, and never ceased; he published his first book of poems ten years later, at age seventeen; his first research paper on butterflies, at age twenty; …

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Green Infrastructure In The Community Ratings System: A Proposed Path To National Flood Insurance Program Recognition, Kevin Macwhorter, Kathleen Zaratzian Jan 2016

Green Infrastructure In The Community Ratings System: A Proposed Path To National Flood Insurance Program Recognition, Kevin Macwhorter, Kathleen Zaratzian

Virginia Coastal Policy Center

No abstract provided.

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Use Of Photo-Identification And Mark-Recapture Techniques To Identify Characteristics Of The Stock Structure Of Coastal Bottlenose Dolphins (Tursiops Truncatus) Off Northern South Carolina, Daniela C. Silva Jan 2016

Use Of Photo-Identification And Mark-Recapture Techniques To Identify Characteristics Of The Stock Structure Of Coastal Bottlenose Dolphins (Tursiops Truncatus) Off Northern South Carolina, Daniela C. Silva

Electronic Theses and Dissertations

National Marine Fisheries Service (NMFS) stock assessment reports describe two coastal and two estuarine bottlenose dolphin stocks that utilize the waters of northern South Carolina (Waring et al. 2014), but coastal data from this area are lacking. Photo-ID mark-recapture surveys were conducted from 2013-2015 along two 50 km coastal transects centered on Murrells Inlet, SC; and from 2014-2015 along two 50 km transects covering both coastal and estuarine waters centered on Little River, SC. Capture histories of marked individuals were used to estimate abundance and, in conjunction with neighboring catalog comparisons, infer movements, residency patterns, and stock membership. Local abundance …

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Effects Of Gender And Spirituality On Adults' Resilience To Daily Non-Traumatic Stressors, Lois S. Harris Jan 2016

Effects Of Gender And Spirituality On Adults' Resilience To Daily Non-Traumatic Stressors, Lois S. Harris

Walden Dissertations and Doctoral Studies

Researchers have conducted several studies of spirituality as it relates to individuals' coping strategies and resilience when facing life trauma. There is less research, however, on spirituality as it relates to adults' resiliency to daily non-traumatic stressors. The purposes of the current study were to examine the relationship between spirituality and adults' resilience to daily, non-traumatic stressors and assess whether gender has a moderating effect on this relationship. A quantitative correlational study based on Lazarus's transactional model of stress and coping using convenience sampling, an online survey (N= 94) was administered. Of the 94 participants ages 19 to 68, 66 …

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Assessment Of Her2-Neu In Breast Cancer Lines Upon Differential Exposures To Xenoestrogens, Abha Aggarwal Jan 2016

Assessment Of Her2-Neu In Breast Cancer Lines Upon Differential Exposures To Xenoestrogens, Abha Aggarwal

Walden Dissertations and Doctoral Studies

Synthetic xenoestrogens have differential estrogenic properties. Research has shown that exposures to xenoestrogens could promote breast cancer by disrupting normal function of the human epidermal growth factor receptor 2 (Her2) gene. Although animal models demonstrated a connection between xenoestrogen exposure and Her2 activity, no study using human cells has systematically examined their carcinogenic potential influencing the Her2 gene expression. Furthermore, breast cancer cells are phenotypically disparate (ER+, Her2+), with some phenotypes (Her2+), leading to more aggressive disease. This study aimed to dosimetrically assess the carcinogenic potential of commonly used xenoestrogens influencing Her2 gene expression, and delineate cellular phenotypes at greater …

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Spatiotemporal Variability Of Plant Phenology In Drylands: A Case Study From The Northern Chihuahuan Desert, Naomi Robin Luna Jan 2016

Spatiotemporal Variability Of Plant Phenology In Drylands: A Case Study From The Northern Chihuahuan Desert, Naomi Robin Luna

Open Access Theses & Dissertations

With global change, which includes climate change, there is a sense of urgency to understand how shifts in climate will affect ecosystems. Although several studies have improved understanding of how and why some ecosystems respond, most studies have not explored simultaneous responses of different land cover types throughout a given region. Dryland ecosystems, such as the Chihuahuan Desert, appear to respond to climate variability and currently make up about 40% of global land surface area. It is expected that drylands will expand to cover 60% of land surface area on earth by mid-century making this ecosystem more critical to global …

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Predicting The Water Quality Of Shallow Arctic Ponds Using Remote Sensing, Gabriela Tarin Jan 2016

Predicting The Water Quality Of Shallow Arctic Ponds Using Remote Sensing, Gabriela Tarin

Open Access Theses & Dissertations

Barrow, Alaska is in a region dominated by Arctic tundra of which a substantial part is covered by lakes and ponds. Despite their dominance in the landscape, freshwater ecosystems in the Arctic have been insufficiently studied. It is clear that furthering understanding of how Arctic water bodies are responding to warming will depend on the analysis of changes in the concentration of organic and inorganic constituents in the water; however, scientists are faced with the task of sampling many remote sites in a relatively hostile environment. Thus, the exploration and incorporation of remote methods for monitoring changes in water quality. …

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Effects Of Citric Acid Coated And Uncoated Cerium Oxide Nanoparticles In Tomato (Solanum Lycopersicum) Plants, Ana Cecilia Barrios Jan 2016

Effects Of Citric Acid Coated And Uncoated Cerium Oxide Nanoparticles In Tomato (Solanum Lycopersicum) Plants, Ana Cecilia Barrios

Open Access Theses & Dissertations

This research was performed to examine the physiological and biochemical effects of bare (nCeO2) and citric acid coated (nCeO2+CA) cerium oxide nanoparticles in tomato (Solanum lycopersicum). Plants were germinated and grown to full maturity in soil amended with 0-500 mg/kg and periodically analyzed using ICP-OES/MS and other spectroscopic and biochemical techniques. Although Ce in tissues increased as the external nCeO2 increased, there were no visible signs of toxicity. In mature plants, nCeO2 induced developmental changes and altered nutritional quality (essential elements) in fruits. On the other hand, nCeO2+CA affected fruit carbohydrate composition (sugars and starch). This study gives insights on …

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Modulation Of The Physiological And Biochemical Effects Of Copper Nanoparticles In Kidney Beans (Phaseouls Vulgaris) Treated By Kinetin, Suzanne Annette Apodaca Jan 2016

Modulation Of The Physiological And Biochemical Effects Of Copper Nanoparticles In Kidney Beans (Phaseouls Vulgaris) Treated By Kinetin, Suzanne Annette Apodaca

Open Access Theses & Dissertations

It is imperative to not only understand the impact of engineered nanomaterials (ENMs) in edible plants, but also the interactions they have with various additives used in agriculture. In this study, kidney bean plants were grown in potting soil treated with nano copper (nCu), bulk copper (bCu), and copper chloride (CuCl2) at concentrations of 0, 50, and 100 mg/kg for 55 and 90 days. At 15 days of growth, 0, 10, and 100 μm of kinetin (KN) were applied to plants. Plant tissue samples were harvested at 55 days and seeds were reaped at 90 days. Physiological and biochemical parameters …

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Synthesis And Characterization Of Uranyl Dipyrrin Complexes For Environmental Applications, Duer Bolotaulo Bolotaulo Jan 2016

Synthesis And Characterization Of Uranyl Dipyrrin Complexes For Environmental Applications, Duer Bolotaulo Bolotaulo

Open Access Theses & Dissertations

Persistent organic pollutants (POPs) are toxic chemicals that adversely affect the health of human populations as well as the environment. The need to develop remediation methods and materials as well as understand the mechanisms in which they can degrade POPs is necessary. Furthermore, heterogeneous phase metal based catalysts in place today do not fully understand the chemistry underlying degradation processes. The proposed research seeks to synthesize and characterize uranyl dipyrrin complexes to assess and understand the reactivity of uranyl dipyrrins with pollutants. Photophysical and electrochemical techniques will be used to characterize and determine the viability of utilizing the uranyl complexes …

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Impacts Of Environmental Changes To The Middle Rio Grande Landscape On Ysleta Del Sur Pueblo's Cultural And Cermonial Sustainability, Andrea L. Everett Jan 2016

Impacts Of Environmental Changes To The Middle Rio Grande Landscape On Ysleta Del Sur Pueblo's Cultural And Cermonial Sustainability, Andrea L. Everett

Open Access Theses & Dissertations

Given future climate scenarios, this Thesis investigates how plausible climate changes will further impact the Native American community of Ysleta del Sur Pueblo's (Tiguas) cultural continuity and access to riparian ecosystem services along the Rio Grande River (specific to Tigua tradition; riparian vegetation used in ceremony, i.e. Gooding's and Coyote willow). The project aims to (1) describe and understand the relationship between regional climatic changes, anthropogenic changes, and major events in Tigua history, (2) identify rates and patterns of riparian vegetation changes, (3) evaluate impacts on cultural and provisioning ecosystem services relevant to Tigua culture, and relate these to climate …

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Removal Of Endocrine Disrupting Compounds From Water And Wastewater Using Ecofriendly Materials, Alma Lili Loya Posada Jan 2016

Removal Of Endocrine Disrupting Compounds From Water And Wastewater Using Ecofriendly Materials, Alma Lili Loya Posada

Open Access Theses & Dissertations

Endocrine disrupting chemicals (EDCs) are compounds considered pollutants of emerging concern. The United States Environmental Protection Agency (USEPA) defines emerging pollutants as new chemicals without regulatory status and with an impact on the environment and human health that is poorly understood. Bisphenol A (BPA) has been considered an EDC and found to be ubiquitous in the environment because of its presence in a multitude of products including food and beverage packaging, flame retardants, adhesives, building materials, electronic components, and paper coatings Currently, BPA is not regulated by the federal government in the US and waste water treatment plants are not …

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Bioavailability Of Metal/Metal Oxide Nanomaterials And Their Effects On The Physiology Of Plants, Nubia Zuverza Mena Jan 2016

Bioavailability Of Metal/Metal Oxide Nanomaterials And Their Effects On The Physiology Of Plants, Nubia Zuverza Mena

Open Access Theses & Dissertations

Nanoparticles (NPs) contained in consumer products will undoubtedly reach the environment. Engineered nanomaterials (ENMs) may cause physiological and biochemical alterations in plants and, therefore, have noteworthy effects on their growth and proliferation. Edible plants are a means through which NPs can reach organisms of higher trophic levels that feed on them. Previous studies have demonstrated that there are strong interactions between NPs and terrestrial plants. This project intends to evaluate the impacts that various commercially available NPs have on plants. Copper (Cu) nanomaterials and conventional Cu compounds were compared in cilantro plants (Chapter 2). In addition, changes in radish sprouts …

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Drinking Water And Autism: Using Spatial Cluster Detection To Explore Patterns Of Autism Cases In Lane County, Oregon, Sherry Sandreth Jan 2016

Drinking Water And Autism: Using Spatial Cluster Detection To Explore Patterns Of Autism Cases In Lane County, Oregon, Sherry Sandreth

Walden Dissertations and Doctoral Studies

Autism Spectrum Disorders (ASD) are a complex array of neurological disorders with a diverse presentation, multiple etiologies, and long-term ramifications. Prevalence of ASD in the United States is about 1 in 50 children as of 2013, making it a significant public health problem. The etiology is not understood, and it is widely accepted that it is multicausal, with genetic and environmental influences. Prior research suggests an association between water source and ASD. Contaminants such as lead, arsenic, mercury, pharmaceuticals and pesticides found in water are associated with developmental disorders suggesting that a systematic review focused on water source was warranted. …

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Fine-Scale Change Detection Using Unmanned Aircraft Systems (Uas) To Inform Reproductive Biology In Nesting Waterbirds, Sharon Dulava Jan 2016

Fine-Scale Change Detection Using Unmanned Aircraft Systems (Uas) To Inform Reproductive Biology In Nesting Waterbirds, Sharon Dulava

Cal Poly Humboldt theses and projects

Aerial photographic surveys from manned aircraft are commonly used to estimate the size of bird breeding colonies but are rarely used to evaluate reproductive success. Recent technological advances have spurred interest in the use of unmanned aircraft systems (UAS) for monitoring wildlife. The ability to repeatedly sample and collect imagery at fine-scale spatial and temporal resolutions while minimizing disturbance and safety risks make UAS particularly appealing for monitoring colonial nesting waterbirds. In addition, advances in photogrammetric and GIS software have allowed for more streamlined data processing and analysis. Using UAS imagery collected at Anaho Island National Wildlife Refuge during the …

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Integrated Management Of Fruit Flies-Case Studies From Uganda, Brian E. Isabirye, Caroline K. Nankinga, Alex Mayamba, Anne M. Akol, Ivan Rwomushana Jan 2016

Integrated Management Of Fruit Flies-Case Studies From Uganda, Brian E. Isabirye, Caroline K. Nankinga, Alex Mayamba, Anne M. Akol, Ivan Rwomushana

All Peer-Reviewed Publications

Fruit flies (Diptera: Tephritidae) pose a threat to commercialisation of the horticulture industry in Uganda. They impair the quality and quantity of fruits produced, and limit access to lucrative regional and global markets. Here we explore past and present efforts, and future plans for research and management, of fruit flies in Uganda. Early research geared towards collection and identification of fruit flies recognised the pest status of many species and highlighted the need for establishing sustainable management strategies. Subsequently large-scale research initiatives have substantially increased knowledge on the biology and ecology of fruit flies in Uganda. Based on these studies, …

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