Open Access. Powered by Scholars. Published by Universities.®
- Institution
- Keyword
-
- AMS (1)
- Age of carbon in soil (1)
- Amphibians (1)
- Aquaponics (1)
- Beetle (1)
-
- Boreal forests (1)
- Carabid (1)
- Community ecology (1)
- Effects of warming (1)
- Environmental policies (1)
- Forest ecology (1)
- Graphitization (1)
- Gypsy moth (1)
- Lymantria dispar (1)
- Mesofication (1)
- Osa Peninsula; deforestation; forest succession; Lecythidaceae; saproxylic insects; forest specificity; host associations; Neoeutrypanus mutilatus; Gorybia tibialis. (1)
- Radiocarbon (1)
- Small mammals (1)
- Soils (1)
- Sustainable agriculture (1)
- Tropical Forest Soils (1)
- Undergraduate journal (1)
- Undergraduate research (1)
- United States (1)
- Urban ecology (1)
- Urban farming (1)
- Vegitation (1)
- Publication
- Publication Type
Articles 1 - 11 of 11
Full-Text Articles in Biology
Demography And Disease Of The Rare Shrub Buckleya Distichophylla (Santalaceae) In Northeastern Tennessee, William Seth Ratliff
Demography And Disease Of The Rare Shrub Buckleya Distichophylla (Santalaceae) In Northeastern Tennessee, William Seth Ratliff
Undergraduate Honors Theses
Piratebush (Buckleya distichophylla (Nutt.) Torr.) is a rare, hemiparasitic shrub with the only extant populations in western North Carolina, northeastern Tennessee, and southwestern Virginia. The preferred natural hosts of piratebush, Carolina and eastern hemlocks, have seen sharp declines over the last decade due to the invasive hemlock woolly adelgid. Virginia pine, another important host of piratebush, is also susceptible to disease, specifically Cronartium appalachianum, a rust fungus for which piratebush is the secondary host. This study described and analyzed current demographic parameters of three Tennessee piratebush populations. Additionally, spatial patterns of disease and demographic characters were analyzed. These …
Radiocarbon Isotopic Classification Of Deep Tropical Forest Soils, Brooke Butler, Karis J. Mcfarlane, Jennifer Pett-Ridge, Katherine A. Heckman
Radiocarbon Isotopic Classification Of Deep Tropical Forest Soils, Brooke Butler, Karis J. Mcfarlane, Jennifer Pett-Ridge, Katherine A. Heckman
STAR Program Research Presentations
Tropical forest soils have an important role in global carbon (C) stocks. Small changes in the cycling of C could drastically affect atmospheric carbon dioxide (CO2) concentrations and active cycling of carbon in a forest community. Currently, little is understood of how tropical forest soils will respond to the increasing global temperatures. To examine the effects of warming/ drought on losses of older versus younger soil C pools, we implemented radiocarbon (14C) isotopic characterization of various soil plot samples and depths from the Luquillo Experimental Forest, Puerto Rico. 14C was measured using Accelerated Mass Spectrometry (AMS) from catalytically condensed carbon …
Fishing For A Sustainable Future: Aquaponics As A Method Of Food Production, Richard Ramsundar
Fishing For A Sustainable Future: Aquaponics As A Method Of Food Production, Richard Ramsundar
Student Theses 2015-Present
This thesis compares and explains the advantages aquaponics farming has over modern industrial intensive farming. Through a comparison natural capital usage, conservation, recycling and cost, the thesis advocates for the expansion of aquaponics usage in urban settings. The thesis also explains the history of intensive farming and aquaponics in America, the science of how aquaponics operates, the economic and environmental costs of modern intensive farming versus aquaponics farming, and the social implications of aquaponics. Lastly, I propose a policy that reallocates farm subsidies by modifying the Farm Bill. Then I propose policies that support creating a new standard of farm …
Animal Habitat Utilization And The Impacts Of Small-Scale Disturbances On Vegetation Within Larch Forests In Northeastern Siberia, Aaron Phillip White
Animal Habitat Utilization And The Impacts Of Small-Scale Disturbances On Vegetation Within Larch Forests In Northeastern Siberia, Aaron Phillip White
Theses and Dissertations - UTB/UTPA
Boreal forests support a variety of animals distributed across a matrix of habitat patches including forests of different ages and stand densities. These forests occur at high latitudes where cold and moist conditions favor ground layer dominance by mosses and slow decomposition rates, resulting in a thick soil organic layer (SOL) comprised primarily of decomposing mosses and roots. However, limited information is available on how animal use varies across habitat types in northeastern Siberia. Boreal forests of this region are unique because they are comprised of a single deciduous conifer, Cajander larch (Larix cajanderi). These forests also occur on a …
In Situ Nitrogen Mineralization, Nitrification, And Ammonia Volatilization In Maize Field Fertilized With Urea In Huanghuaihai Region Of Northern China, Xuelin Zhang, Qun Wang, Jun Xu, Frank S. Gilliam, Nicolas Tremblay, Chaohai Li
In Situ Nitrogen Mineralization, Nitrification, And Ammonia Volatilization In Maize Field Fertilized With Urea In Huanghuaihai Region Of Northern China, Xuelin Zhang, Qun Wang, Jun Xu, Frank S. Gilliam, Nicolas Tremblay, Chaohai Li
Biological Sciences Faculty Research
Nitrogen (N) fertilization potentially affects soil N mineralization and leaching, and can enhance NH3 volatilization, thus impacting crop production. A fertilizer experiment with five levels of N addition (0, 79, 147, 215 and 375 kg N ha-1) was performed in 2009 and 2010 in a maize field in Huanghuaihai region, China, where > 300 kg N ha-1 has been routinely applied to soil during maize growth period of 120 days. Responses of net N mineralization, inorganic N flux (0–10cm), NH3 volatilization, and maize yield to N fertilization were measured. During the growth period, net N mineralization …
Amphibian And Small Mammal Assemblages In A Northern Virginia Forest Before And After Defoliation By Gypsy Moths (Lymantria Dispar), Joseph C. Mitchell
Amphibian And Small Mammal Assemblages In A Northern Virginia Forest Before And After Defoliation By Gypsy Moths (Lymantria Dispar), Joseph C. Mitchell
Virginia Journal of Science
The introduced European gypsy moth (Lymantria dispar) caused substantial defoliation and mortality of oak trees along the North Fork of Quantico Creek in Prince William Forest Park, Prince William County, Virginia, U.S.A., in 1989 and the early 1990s. Results of a drift fence/pitfall study conducted in 1988 were compared to those obtained from the same technique in the same areas in 1993 to elucidate whether the amphibian and small mammal assemblages had changed over time. Number of Lithobates sylvaticus increased significantly in 1993, but the numbers of Lithobates clamitans and Plethodon cinereus were significantly higher in 1988. Total …
"What Is Love?" The Sounds Of Love From William S. Burroughs, Kathryn Cronin
"What Is Love?" The Sounds Of Love From William S. Burroughs, Kathryn Cronin
Occam's Razor
William Burroughs, his life and works, have a set beginning and end, but the biological and spiritual connections he draws between language, sound, and the human body appear to have undefined points of origin. Sound has always been. Language has always been. To exist outside of language and sound is to exist outside of time and space and thus outside the body. Burroughs’ theories on language, the word, and their connection to the body are woven through texts filled with structural and narrative convolutions. Nova Trilogy, especially The Ticket that Exploded, as well as the early novel …
Occam's Razor Vol. 5 - Full (2015)
Understory Diversity And Composition Drives Carabid Assemblages, Tierney Brosius, Michael Reisner
Understory Diversity And Composition Drives Carabid Assemblages, Tierney Brosius, Michael Reisner
Biology: Faculty Scholarship & Creative Works
Fire suppression has nearly eliminated fire as a disturbance in temperate deciduous forests. Lack of fire is transforming these ecosystems through a positive feedback loop termed mesophication: cool, damp, shady conditions become continually more favorable for a few mesophytic species, while deteriorating for diverse array of heliophytic ones. Disturbances caused by urbanization fragment and degrade remnant forests. In urban settings, human management (or lack thereof) is often a dominate driver of succession. Carabid diversity, understory vegetation, patch size, patch connectivity, and permeable surface area were all examined in multiple forest plots in Rock Island and Moline. The result of this …
A Novel Mechanism To Explain Success Of Invasive Herbaceous Species At The Expense Of Natives In Eastern Hardwood Forests, Frank S. Gilliam
A Novel Mechanism To Explain Success Of Invasive Herbaceous Species At The Expense Of Natives In Eastern Hardwood Forests, Frank S. Gilliam
Biological Sciences Faculty Research
Among the more intriguing topics in general ecology courses are the symbiotic relationships (the ‘-isms’ as I sometimes present them – mutualism, commensalism, and parasitism). Of these, mutualism is typically the most appealing to students. The scenario that different species can not only co-exist, but can also provide essential resources/services for one another, resonates well with all but the least interested in the course. Ultimately, however, there is also the palpable degree of dismay when they discover that these relationships arise from mutual exploitation, rather than from some benign force of nature. A flip-side of this, in many ways a …
The Impact Of Forest Successional Status On Community Structure Of Neotropical Cerambycid Beetles, Lin Li
The Impact Of Forest Successional Status On Community Structure Of Neotropical Cerambycid Beetles, Lin Li
Dissertations and Theses
Due to anthropogenic activities, tropical rain forests face many challenges in sustaining biodiversity and maintaining global climates. This project examines how forest successional status affects community composition of saproxylic cerambycids, which, as early colonists of moribund trees, have an important role in nutrient cycling. In the lowland rain forest of Costa Rica, thirty-nine trees in five plant families (Fabaceae, Lecythidaceae, Malvaceae, Moraceae, and Sapotaceae) were sampled in a mosaic of old growth and secondary forest. They yielded 3545 cerambycid individuals in 49 species. Species richness was almost identical in old growth and secondary forest; but abundance was higher in old-growth. …