Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- ADAM Proteins (1)
- Allergens (1)
- American oyster -- Florida (1)
- Anoxia (1)
- Apoptosis (1)
-
- Baldcypress -- Florida (1)
- Beetles -- Age (1)
- Beetles -- Reproduction (1)
- Biomass -- Florida (1)
- Branchial arch (1)
- CXC (1)
- Carbon -- Florida (1)
- Carbon content (1)
- Cats (1)
- Cell proliferation (1)
- Chemokines (1)
- Colon Cancer (1)
- Competition (Biology) (1)
- Disney Wilderness Preserve (1)
- Electric fishes (1)
- Florida applesnail (1)
- Forest management in Florida (1)
- Forest management in Georgia (1)
- Forests and forestry in Florida (1)
- Forests and forestry in Georgia (1)
- Gills (1)
- Growth (Plants) -- Florida (1)
- Habitat manipulation (1)
- Hypoxia (1)
- Introduced aquatic organisms -- Florida (1)
Articles 1 - 12 of 12
Full-Text Articles in Biology
The Effects Of Urbanization On Cypress (Taxodium Distichum) In Central Florida, Lisa A. Mccauley
The Effects Of Urbanization On Cypress (Taxodium Distichum) In Central Florida, Lisa A. Mccauley
Electronic Theses and Dissertations
Urbanization is accelerating in the United States and is contributing to fragmentation of natural habitats, causing changes in species composition and declines in native species. Human population growth in Orlando is typical of growth in the southeastern United States and throughout the range of cypress (Taxodium distichum). Orlando has numerous isolated cypress wetlands, called cypress domes, and many remain among the current urbanized area. This makes Orlando ideal to study the effects of urbanization on cypress domes. Specifically, I tested how urbanization and its effects on fragmentation, hydrology, and fire regime) affected (a) the numbers and spatial pattern of cypress …
Indirect Estimates Of Gene Flow And Its Conservation Implications In The Striped Newt (Notophthalmus Perstriatus), Sarah Elizabeth May
Indirect Estimates Of Gene Flow And Its Conservation Implications In The Striped Newt (Notophthalmus Perstriatus), Sarah Elizabeth May
Electronic Theses and Dissertations
This study used indirect methods to estimate patterns of gene flow in a rare salamander species, the striped newt (Notophthalmus perstriatus). First, we used combined genetic and ecological methods to determine whether populations that appear to exist in two regions separated by 125 km, exhibited genetic and ecological distinctness such that the regions demarcate separate conservation units. Using mtDNA (cyt-b), we found that haplotypes were shared between localities within each region but none were shared between regions. Niche-based distribution modeling revealed significant differences in the ecological setting between the two regions. In combination, the absence of evidence for recent genetic …
Identification Of Fabrics Likely To Collect And Disperse Fel D 1, Mary Janice Jones
Identification Of Fabrics Likely To Collect And Disperse Fel D 1, Mary Janice Jones
Electronic Theses and Dissertations
Individuals sensitive to domestic cat allergen Fel d 1 experience a variety of symptoms including eye irritation, respiratory irritation, asthma, and severe respiratory distress. Fel d 1 is a protein produced in the saliva and on the skin of domestic cats. Previous studies have demonstrated that Fel d 1 adheres to clothing, upholstery, and human hair and has been found in non-cat environments in levels high enough to cause allergic reactions in sensitive individuals. In a general sense, two very different approaches have been adopted to study Fel d 1. One area of the literature focuses on the molecular biology …
The Effects Of Age On Reproduction In A Citrus Root Weevil Diaprepes Abbreviatus, Heather R. Chasez
The Effects Of Age On Reproduction In A Citrus Root Weevil Diaprepes Abbreviatus, Heather R. Chasez
Electronic Theses and Dissertations
Understanding the factors influencing mate choice is a major focus of sexual selection. Many factors are potentially involved, including age of the individual. The good genes model and the youth advantage model both make predictions about the effect of age on mate choice. Under the good genes model older mates would be the more preferable due to their proven high survivability. The “youth advantage” model, predicts that young to intermediate age males would be more advantageous as mates because of a decrease in sperm quality and the possibility of increased germ-line mutations in older animals. I examined the effects of …
Understanding The Invasion Of Florida's Intertidal Crassostrea Virginica Reefs By Non-Native Marine Invertebrate Species, Ethan Fletcher Nash
Understanding The Invasion Of Florida's Intertidal Crassostrea Virginica Reefs By Non-Native Marine Invertebrate Species, Ethan Fletcher Nash
Electronic Theses and Dissertations
Predicting the locations of new biological invasions has become a high priority for biologists as well as trying to predict if newly introduced species will become damaging to native ecosystems. Reefs of the eastern oyster Crassostrea virginica in Mosquito Lagoon, Florida have been highly disturbed in recent years resulting in dead reefs (piles of dead, disarticulated shells) some of which have been restored. I conducted oyster reef surveys for non-native invertebrates to determine if disturbance on these oyster reefs might assist invasion by two species, Mytella charruana and Perna viridis, recently introduced to the southeastern coast of the United States. …
Variability Of Carbon Stock In Florida Flatwoods Ecosystems Undergoing Restoration And Management, Kathryn Elizabeth Becker
Variability Of Carbon Stock In Florida Flatwoods Ecosystems Undergoing Restoration And Management, Kathryn Elizabeth Becker
Electronic Theses and Dissertations
The global community is struggling with mitigating the effects of widespread habitat loss and degradation; the effects of which are being further magnified in the face of global climate change. Quality natural habitat is becoming increasingly limited and atmospheric carbon levels continue to rise. Therefore, land managers responsible for multiuse management are often faced with the dilemma of managing ecosystems for biodiversity, as well as optimizing ecosystem services such as carbon storage and sequestration. However, some management techniques used to meet these objectives may yield conflicting results, specifically, the management tool of prescribed fire. Fire is crucial in maintaining species …
Impact Of Land Management On House Mice And Red Imported Fire Ants, Jesse R. Abelson
Impact Of Land Management On House Mice And Red Imported Fire Ants, Jesse R. Abelson
Electronic Theses and Dissertations
Understanding of mechanisms that limit the abundance and distribution of species is central to ecology. The failure of mechanisms to regulate populations can result in population outbreaks. There have been two outbreaks of house mice in the past decade in central Florida. In my study, I examine the efficacy of landscape management in the form of mowing and plowed soil barriers to limit or prevent outbreaks of house mice in a former agricultural area. House mouse populations were highly variable, but were unaffected by mowing or plowed soil barriers. Red imported fire ants were ubiquitous in the study area regardless …
Adaptive Responses Of Branchial Morphology To Hypoxia In The Neotropical Electric Fish Genus Brachyhypopomus, Leilani B. Pathak
Adaptive Responses Of Branchial Morphology To Hypoxia In The Neotropical Electric Fish Genus Brachyhypopomus, Leilani B. Pathak
Electronic Theses and Dissertations
Many tropical aquatic environments worldwide are characterized by intermittent or prolonged hypoxia (low dissolved oxygen). Nevertheless, many tropical freshwater fishes are able to inhabit these challenging environments via a range of morphological, physiological and behavioral adaptations. Brachyhypopomus is a diverse genus of weakly electric fishes represented by 28 known species distributed from Panama to Argentina. 17 species are restricted to permanently normoxic habitats (blackwater rivers and terra firme streams), eight species are restricted to seasonally or perennially hypoxic habitats (whitewater floodplains of large tropical rivers or permanent swampy habitats), and three species are eurytopic (occur in both seasonally hypoxic and …
Applications Of Airborne And Portable Lidar In The Structural Determination, Management, And Conservation Of Southeastern U.S. Pine Forests, Claudia De Mendonca Costa Synek Listopad
Applications Of Airborne And Portable Lidar In The Structural Determination, Management, And Conservation Of Southeastern U.S. Pine Forests, Claudia De Mendonca Costa Synek Listopad
Electronic Theses and Dissertations
Active remote sensing techniques, such as Light Detection and Ranging (LiDAR), have transformed the field of forestry and natural resource management in the last decade. Intensive assessments of forest resources and detailed structural assessments can now be accomplished faster and at multiple landscape scales. The ecological applications of having this valuable information at-hand are still only being developed. This work explores the use of two active remote sensing techniques, airborne and portable LiDAR for forestry applications in a rapidly changing landscape, Southeastern Coastal Pine woodlands. Understanding the strengths and weaknesses of airborne and portable LiDAR, the tools used to extract …
Biology, Ecology And Control Of The Invasive Channeled Apple Snail, Pomacea Canaliculata, Christina M. Trexler
Biology, Ecology And Control Of The Invasive Channeled Apple Snail, Pomacea Canaliculata, Christina M. Trexler
Electronic Theses and Dissertations
Invasive species are detrimental to native biotas worldwide. Recently, Florida was invaded by a freshwater snail (Pomacea canaliculata) native to Argentina. This snail is a serious pest of rice crops in Asia, but little is known about its interactions within Florida ecosystems. Possible competitive exclusion of the native congener (P. paludosa) is a concern because it is the almost exclusive prey of the federally endangered Everglades snail kite (Rostrhamus sociabilis). My research consisted of three parts. First, to identify possible methods to control P. canaliculata in the egg stage, I experimentally evaluated the effects of photoperiod, substrate availability, and food …
The Sheddase Activity Of Adam10/Adam17 On Cxcl16 Increases Proliferation And Survival Of Colorectal Cancer Cells, Tamu C. Talton
The Sheddase Activity Of Adam10/Adam17 On Cxcl16 Increases Proliferation And Survival Of Colorectal Cancer Cells, Tamu C. Talton
Electronic Theses and Dissertations
CXCL16 is an interferon-inducible chemokine of the CXC-subfamily and functions as an adhesion molecule, when membrane bound, and a chemoattractant when soluble. Upregulation of cell associated CXCL16 (cCXCL16) in colorectal cancer is associated with increased tumor infiltrating lymphocytes and good prognosis. ADAM10 and ADAM17 are metalloproteinases responsible for cleaving CXCL16, releasing soluble CXCL16 (sCXCL16) and contributing to proliferation and migration of mesangial cells, in kidney inflammatory disease. We hypothesize that cCXCL16 is a substrate for ADAM10 and ADAM17 cleavage in colorectal cancer, releasing sCXCL16, which mediates cell proliferation. To this end, we first identified CXCL16 in the human colon carcinoma …
Modeling Carbon Allocation, Growth And Recovery In Scrub Oaks Experiencing Aboveground Disturbance, Troy J. Seiler
Modeling Carbon Allocation, Growth And Recovery In Scrub Oaks Experiencing Aboveground Disturbance, Troy J. Seiler
Electronic Theses and Dissertations
Allocation of assimilated carbon amongst plant metabolic processes and tissues is important to understanding ecosystem carbon cycles. Due to the range of spatio-temporal scales and complex process interactions involved, direct measurements of allocation in natural environments are logistically difficult. Modeling approaches provide tools to examine these patterns by integrating finer scale process measurements. One such method is root:shoot balance, where plant growth is limited by either shoot activity (i.e. photosynthesis) or root activity (i.e. water and nutrient uptake). This method shows promise for application on frequently disturbed systems which perturb aboveground biomass and thus create imbalances in root and shoot …