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Articles 1 - 30 of 253
Full-Text Articles in Entire DC Network
Tcwp Newsletter No. 372, Tennessee Citizens For Wilderness Planning
Tcwp Newsletter No. 372, Tennessee Citizens For Wilderness Planning
Tennessee Citizens for Wilderness Planning Newsletters
No abstract provided.
Tcwp Newsletter No. 371, Tennessee Citizens For Wilderness Planning
Tcwp Newsletter No. 371, Tennessee Citizens For Wilderness Planning
Tennessee Citizens for Wilderness Planning Newsletters
No abstract provided.
Tcwp Newsletter No. 370, Tennessee Citizens For Wilderness Planning
Tcwp Newsletter No. 370, Tennessee Citizens For Wilderness Planning
Tennessee Citizens for Wilderness Planning Newsletters
No abstract provided.
Tcwp Newsletter No. 369, Tennessee Citizens For Wilderness Planning
Tcwp Newsletter No. 369, Tennessee Citizens For Wilderness Planning
Tennessee Citizens for Wilderness Planning Newsletters
No abstract provided.
Computational Analysis Of Microbial Sequence Data Using Statistics And Machine Learning, Zhixiu Lu
Computational Analysis Of Microbial Sequence Data Using Statistics And Machine Learning, Zhixiu Lu
Doctoral Dissertations
Since the discovery of the double helix of DNA in 1953, modern molecular biology has opened the door to a better understanding of how genes control chemical processes within cells, including protein synthesis. Although we are still far from claiming a complete understanding, recent advances in sequencing technologies, increased computational capacity, and more sophisticated computational methods have allowed the development of various new applications that provide further insight into DNA sequence data and how the information they encode impacts living organisms and their environment. Sequencing data can now be used to start identifying the relationships between microorganisms, where they live, …
Soil Metabolite Succession In Vertebrate Decomposition Impacted Soils, Jennifer Kate Baer
Soil Metabolite Succession In Vertebrate Decomposition Impacted Soils, Jennifer Kate Baer
Masters Theses
Vertebrate decomposition results in a pulse of critical nutrients such as nitrogen, carbon, and phosphorus into the environment creating a ‘hotspot’ immediately surrounding the carcass. While many decomposition studies have investigated vertebrate decomposition focused on the carcass itself, fewer studies have focused on the impacts of decomposition products on soils. Gaining a greater understanding of soil processes during decomposition could not only aid in better understanding soil biological activities but could also lead to new insights in nutrient cycling in the environment. The assemblage of soil metabolites, also known as the soil metabolome, exposes not only the breakdown products of …
Tcwp Newsletter No. 366, Tennessee Citizens For Wilderness Planning
Tcwp Newsletter No. 366, Tennessee Citizens For Wilderness Planning
Tennessee Citizens for Wilderness Planning Newsletters
No abstract provided.
Montezuma Quail In The Edwards Plateau Of Texas: Detection, Occurrence, And Habitat, Zachary J. Pearson, Eric D. Grahmann, Fidel Hernández, Robert Perez, Leonard A. Brennan, Humberto L. Perotto-Baldivieso
Montezuma Quail In The Edwards Plateau Of Texas: Detection, Occurrence, And Habitat, Zachary J. Pearson, Eric D. Grahmann, Fidel Hernández, Robert Perez, Leonard A. Brennan, Humberto L. Perotto-Baldivieso
National Quail Symposium Proceedings
Montezuma quail (Cyrtonyx montezumae) were historically found throughout nearly every county in the Edwards Plateau region of Texas, USA. Over the last century, shifting land use, reduction of fire on the landscape, and the subsequent encroachment of woody vegetation have constricted the distribution of Montezuma quail to a few counties in the southern portion of the Edwards Plateau. A renewed interest in management for Montezuma quail over the last decade has been met with a lack of information regarding their habitat requirements in this region. This lack of general information and increased sightings of this elusive species in …
Winter Survival And Resource Use Of Translocated Northern Bobwhite In The Mid-Atlantic United States, Kaili Stevens, Christopher K. Williams, Theron Terhune, Philip Coppola, John Parke, John Cecil
Winter Survival And Resource Use Of Translocated Northern Bobwhite In The Mid-Atlantic United States, Kaili Stevens, Christopher K. Williams, Theron Terhune, Philip Coppola, John Parke, John Cecil
National Quail Symposium Proceedings
Northern bobwhite (Colinus virginianus; hereafter, bobwhite) in the Mid-Atlantic United States have been experiencing precipitous population declines due to a combination of habitat deterioration, urban and suburban sprawl, change in forest management regimes, and farming practices. In recent years, restocking of bobwhite through translocation efforts has gained interest to rebuild local populations. However, empirical studies are warranted to understand the limitations of translocation as it relates to its potential use for long-term population recovery and persistence in this region. Further, few studies nation-wide have evaluated resource use and survival during the non-breeding season on translocated sites. As such, …
Effect Of Food Distribution On Northern Bobwhite Resource Selection, Rachel R. Gardner, John Maerz, Theron M. Terhune Ii, Ira B. Parnell, James A. Martin
Effect Of Food Distribution On Northern Bobwhite Resource Selection, Rachel R. Gardner, John Maerz, Theron M. Terhune Ii, Ira B. Parnell, James A. Martin
National Quail Symposium Proceedings
Supplemental feeding is a common management tactic used to increase survival and reproduction of northern bobwhite (Colinus virginianus; hereafter, bobwhite). Different supplemental feeding methods alter the distribution of resources across a landscape in unique ways and may influence the space use and resource selection of target species differently. Predators may concentrate their movements near fed sites, and different distributions of supplemental feed may encourage bobwhite to concentrate their movements closer to feed than other areas, thereby altering the potential for predator-prey interactions near feed. We used radio-tracked locations and movements in areas with stationary feeders (“feeder fed”) and …
Tcwp Newsletter No. 365, Tennessee Citizens For Wilderness Planning
Tcwp Newsletter No. 365, Tennessee Citizens For Wilderness Planning
Tennessee Citizens for Wilderness Planning Newsletters
No abstract provided.
Tcwp Newsletter No. 364, Tennessee Citizens For Wilderness Planning
Tcwp Newsletter No. 364, Tennessee Citizens For Wilderness Planning
Tennessee Citizens for Wilderness Planning Newsletters
No abstract provided.
Cerulean Warbler Full Annual Cycle Ecology: Filling In Critical Knowledge Gaps, Douglas W. Raybuck
Cerulean Warbler Full Annual Cycle Ecology: Filling In Critical Knowledge Gaps, Douglas W. Raybuck
Doctoral Dissertations
Cerulean Warblers (Setophaga cerulea) are a declining migratory bird species of conservation concern that breed in mature hardwood forests of eastern North America and spend the stationary non-breeding period in the tropical Andes of South America. To reverse their >50-year population decline, a full annual cycle conservation strategy is needed. However, several important knowledge gaps have limited our understanding of this species’ full annual cycle ecology, including migration ecology, response to forest management on the breeding grounds, and basic ecology during the stationary non-breeding period in Andean forests. From geolocator data, we found a moderate pattern of migratory …
Tcwp Newsletter No. 360, Tennessee Citizens For Wilderness Planning
Tcwp Newsletter No. 360, Tennessee Citizens For Wilderness Planning
Tennessee Citizens for Wilderness Planning Newsletters
No abstract provided.
Tcwp Newsletter No. 359, Tennessee Citizens For Wilderness Planning
Tcwp Newsletter No. 359, Tennessee Citizens For Wilderness Planning
Tennessee Citizens for Wilderness Planning Newsletters
No abstract provided.
Lidar Evaluation Of The Structural Complexity Of Multi-Cropped White Oak (Quercus Alba) And Pine (Pinus Spp.) Plantings In East Tennessee, Usa, Bret Alan Elgersma
Lidar Evaluation Of The Structural Complexity Of Multi-Cropped White Oak (Quercus Alba) And Pine (Pinus Spp.) Plantings In East Tennessee, Usa, Bret Alan Elgersma
Masters Theses
Structural complexity has an important influence on wildlife habitat and several other ecosystem services. Establishment of white oak (Quercus alba) intercropped with loblolly pine (Pinus taeda), shortleaf pine (Pinus echinata), or eastern white pine (Pinus strobus), in 2014 provided the opportunity to investigate effects of planting species mixtures in different spatial arrangements on structural complexity. Terrestrial LiDAR was used to evaluate the structure of each intercropped treatment and monoculture control. The measures of complexity included: 1) rumple 2) top rugosity 3) standard deviation of individual tree crown area, 4) standard deviation of …
The Effects Of Urbanization On The Avian Gut Microbiome, Mae Berlow
The Effects Of Urbanization On The Avian Gut Microbiome, Mae Berlow
Doctoral Dissertations
The gut microbiome influences and is influenced by the host, and can affect the host organism by contributing to health, development and immunity. Similarly, the host can influence this community; it’s makeup can vary with host species, locality, diet, social stressors, and environmental stressors. Some of these environmental stressors have arisen due to human-induced rapid environmental change, like urbanization. The physiology and behaviors of organisms that are able to persist in urban environments are often different from their non-urban congeners. Nutrition, development, and immunity—all of which are affected by the gut microbiome—are important factors that can determine survival in urban …
Evolution And Resurrection Ecology Of A Foundational Coastal Marsh Plant, Jennifer L. Summers
Evolution And Resurrection Ecology Of A Foundational Coastal Marsh Plant, Jennifer L. Summers
Doctoral Dissertations
Stratified storage of dormant seeds in soil can result in natural archives useful for studying evolutionary responses to environmental change. However, few studies leverage soil-stored seed banks as natural archives, in part because of concerns over attrition, bias, and sediment mixing. Here, I examine the persistent seed bank of Schoenoplectus americanus, a foundational brackish marsh sedge, to a) determine whether it can serve as a resource for reconstructing demographic and population genetic/genomic variation, b) whether and how evolution may be occurring across a century. After extracting seeds from radionuclide-dated soil cores taken across the Chesapeake Bay, I “resurrected” age …
Racial Disparities In Maternal Mortality In The United States: A Systematic Literature Review, Alexandria J. Lamie, Samantha F. Ehrlich
Racial Disparities In Maternal Mortality In The United States: A Systematic Literature Review, Alexandria J. Lamie, Samantha F. Ehrlich
Chancellor’s Honors Program Projects
No abstract provided.
Checklist Of The Inland Fishes Of Louisiana, Michael H. Doosey, Henry L. Bart Jr., Kyle R. Piller
Checklist Of The Inland Fishes Of Louisiana, Michael H. Doosey, Henry L. Bart Jr., Kyle R. Piller
Southeastern Fishes Council Proceedings
Since the publication of Freshwater Fishes of Louisiana (Douglas, 1974) and a revised checklist (Douglas and Jordan, 2002), much has changed regarding knowledge of inland fishes in the state. An updated reference on Louisiana’s inland and coastal fishes is long overdue. Inland waters of Louisiana are home to at least 224 species (165 primarily freshwater, 28 primarily marine, and 31 euryhaline or diadromous) in 45 families. This checklist is based on a compilation of fish collections records in Louisiana from 19 data providers in the Fishnet2 network (www.fishnet2.net). The checklist has grown because of descriptions of three new species, new …
Improving Conservation And Recreation In Environments Shared By Humans And Bats, Hannah Shapiro
Improving Conservation And Recreation In Environments Shared By Humans And Bats, Hannah Shapiro
Masters Theses
White-nose syndrome (WNS) has drastically changed how caves are managed in the United States. This disease has killed millions of bats throughout eastern North America and continues to spread westward. Since the discovery of WNS, The U.S. National Park Service (NPS) has acted to slow the spread of the disease through the development of educational programs and the deployment of decontamination measures. Despite the vast array of research on the biological and ecological aspects of bats and WNS, few studies focus on how visitor attitudes and knowledge of management strategies implemented in response to WNS impact the effectiveness of these …
Theoretical And Quantitative Methods Connecting Characterizing Micoribal Metabolism Diversity: Implciations From Phylogenetics, Community Diversity, And Organic Geochemistry, Taylor Royalty
Doctoral Dissertations
Biogeochemistry is controlled by microorganisms obtaining nutrients and energy. Thus, microbial metabolisms directly link microbial ecology and geochemistry. The extent that microbial ecology and geochemistry microbial ecology and geochemistry affects the other requires constraint on the spatiotemporal distribution and abundance of microbial metabolisms with respect to geochemistry, or the microbial niches. Elucidating microbial metabolisms was challenging prior to the advent of ‘omics sequencing technologies, as most microbial lineages lack cultured representatives. Although revolutionizing microbial ecology, challenges still exist in fully leveraging information derived from ‘omics technologies. This dissertation attempts to address a small subset of these challenges that include quantifying …
Connecting The Social And Spatial Behaviors Of A Territorial Species (Anolis Carolinensis), Jordan M. Bush
Connecting The Social And Spatial Behaviors Of A Territorial Species (Anolis Carolinensis), Jordan M. Bush
Doctoral Dissertations
Why animals live where they do is a key question in ecology and evolution. An individual’s home range determines the resources they have access to, conspecifics they encounter, and predators and pitfalls they must avoid. Home range behaviors also have an inherently social component; where animals live affects the rivals they compete with and the mates they have access to. This is especially true in territorial species, as defensive displays make up a large portion of their social behaviors. In this dissertation, I sought to understand how territorial behaviors affect the social lives of the green anole lizard (Anolis …
Impact Of Insecticide On Pollinator Communities In A Forested System: A Model System Using Eastern Hemlock, Tsuga Canadensis, Rosebay Rhododendron, Rhododendron Maximum, And Imidacloprid, David Bechtel
Masters Theses
Mortality of eastern hemlock, Tsuga canadensis (L.) Carrière (Pinales: Pinaceae), has occurred at a high rate since the arrival of the invasive hemlock wooly adelgid (HWA), Adelges tsugae Annand (Hemiptera: Adelgidae). The systemic neonicotinoid pesticide imidacloprid is soil-applied to hemlocks for effective control of HWA. However, is this pesticide translocated by incidental non-target plants under hemlock trees and, if so, does it impact non-target insects, such as pollinators? One commonly encountered flowering understory associate is Rhododendron maximum L. (Ericales: Ericaceae). Research has demonstrated that imidacloprid is translocated to leaves, nectar and pollen of R. maximum. The goal of this research …
Spatiotemporal Patterns And Burden Of Myocardial Infarction In Florida, Evah Odoi
Spatiotemporal Patterns And Burden Of Myocardial Infarction In Florida, Evah Odoi
Doctoral Dissertations
Knowledge of spatiotemporal disparities in myocardial infarction (MI) risk and the determinants of those disparities is critical for guiding health planning and resource allocation. Therefore, the aims of this study were to: (i) investigate the spatial distribution and clusters of MI hospitalization (MIHosp) and MI mortality (MIMort) risks in Florida over time to identify communities with consistently high MI burdens, (ii) assess temporal trends in geographic disparities in MIHosp and MIMort risks (iii) identify predictors of MIHosp risks.Retrospective MIhosp and MImort data for Florida for 2005-2014 and 2000-2014 periods, respectively, were used. Kulldorff’s circular and Tango’s flexible spatial scan statistics …
The Ecology Of Soil Viruses: Abundance, Distribution, Diversity And Impact On Microbial Community Structure, Xiaolong Liang
The Ecology Of Soil Viruses: Abundance, Distribution, Diversity And Impact On Microbial Community Structure, Xiaolong Liang
Doctoral Dissertations
Viruses as a critical biotic component in all ecosystems have exhibited pronounced ecological significance. The global abundance of viruses in the biosphere has been estimated at 1 x 1031, with 90-95% of these viruses residing in soil and/or sedimentary environments. Despite the apparent greater abundance and diversity, soil virology is under-investigated relative to other environments such as marine and freshwater habitats and soil viral genomic data are underrepresented in public repositories of genetic information. In this dissertation, we investigated the viral abundance, diversity, and virus-host interactions in natural soils and the simulated stimulated subsurface bioremediation environments. We used epifluorescence microscopy …
Tcwp Newsletter No. 348, Tennessee Citizens For Wilderness Planning
Tcwp Newsletter No. 348, Tennessee Citizens For Wilderness Planning
Tennessee Citizens for Wilderness Planning Newsletters
No abstract provided.
Tcwp Newsletter No. 347, Tennessee Citizens For Wilderness Planning
Tcwp Newsletter No. 347, Tennessee Citizens For Wilderness Planning
Tennessee Citizens for Wilderness Planning Newsletters
No abstract provided.
Expanding The Omics Repertoire For Model Studies On A Chlorella-Infecting Giant Virus, Samantha Coy
Expanding The Omics Repertoire For Model Studies On A Chlorella-Infecting Giant Virus, Samantha Coy
Doctoral Dissertations
Viruses are the most abundant biological entities in aquatic ecosystems. As top-down controls of plankton abundance and diversity, they are intrinsically linked to biogeochemical cycling, and by proxy, to global climate change. It is thus of great interest for researchers to understand the mechanics of viral infection and persistence among ecologically important phytoplankton assemblages. Viruses which infect eukaryotic algae are observed with diverse nucleic acid types, structures, and sizes, though most isolates to date bear large, dsDNA genomes comprised of genes normally only seen in cellular organisms. The Chlorella viruses are the model system for studying these entities, with many …
Living Life On The Edge: The Role Of Introduction And Range Expansion In Shaping Behavior Of A Non-Native Spider, Angela Chuang
Living Life On The Edge: The Role Of Introduction And Range Expansion In Shaping Behavior Of A Non-Native Spider, Angela Chuang
Doctoral Dissertations
Animal personalities describe the behavioral phenotypes of individuals that often remain relatively stable over time and contexts. Since they can account for differential dispersal tendencies, understanding how personality types are distributed across the range can lead to important characterization of expanding invasive populations. Cyrtophora citricola is a colonial tentweb orbweaver spider with an Old World native range that is invasive in Florida. It has experienced a range expansion of over 450 km in 20 years. In my dissertation, I asked whether C. citricola exhibits personality, whether some of its behavioral traits are correlated with dispersal tendencies, and whether personality types …