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You searched for +publisher:"Florida International University" +contributor:("Christopher Baraloto"). Showing records 1 – 2 of 2 total matches.

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Florida International University

1. Simon, Alison G. The Detection of an Invasive Pathogen through Chemical and Biological Means for the Protection of Commercial Crops.

Degree: PhD, Chemistry, 2017, Florida International University

Standoff detection of targets using volatiles is essential when considering substances that are hazardous or dangerous, or for which the presence or location is unknown. For many invasive biological threats, their presence is often not realized until they have begun visibly affecting and spreading through crops or forests. The fungus Raffaelea lauricola is a biothreat vectored by the invasive beetle Xyleborus glabratus, or redbay ambrosia beetle (RAB), whose presence in avocado groves is currently detectable by visual inspection. Once visually identified, the affected trees must be removed and destroyed to protect those remaining trees. However, if the fungus is identified via standoff volatile detection, there is anecdotal evidence that it can be treated with propiconazole and saved from progression to the fatal laurel wilt disease. As a result of the rapid spread of R. lauricola and the quick death of trees, early detection through standoff methods is essential. The only current method of pre-symptomatic identification is canine detection. Canines are sensitive and selective biological detectors that can trace odors to their source, despite the presence of a variety of background odors. The present research evaluated the volatile organic compounds (VOCs) of the laurel wilt disease and R. lauricola using headspace solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS). Additionally, a new method for odor collection and presentation to trained detection canines was developed. Knowledge of the disease and standoff volatile detection capabilities are improved using this information. Advisors/Committee Members: Kenneth G Furton, Christopher Baraloto, John Berry, Yong Cai, Bruce McCord.

Subjects/Keywords: Canine detection; laurel wilt; avocado; HS-SPME-GC-MS; Rafaelea lauricola; Chemistry

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Simon, A. G. (2017). The Detection of an Invasive Pathogen through Chemical and Biological Means for the Protection of Commercial Crops. (Doctoral Dissertation). Florida International University. Retrieved from https://digitalcommons.fiu.edu/etd/3558 ; 10.25148/etd.FIDC004011 ; FIDC004011

Chicago Manual of Style (16th Edition):

Simon, Alison G. “The Detection of an Invasive Pathogen through Chemical and Biological Means for the Protection of Commercial Crops.” 2017. Doctoral Dissertation, Florida International University. Accessed October 24, 2019. https://digitalcommons.fiu.edu/etd/3558 ; 10.25148/etd.FIDC004011 ; FIDC004011.

MLA Handbook (7th Edition):

Simon, Alison G. “The Detection of an Invasive Pathogen through Chemical and Biological Means for the Protection of Commercial Crops.” 2017. Web. 24 Oct 2019.

Vancouver:

Simon AG. The Detection of an Invasive Pathogen through Chemical and Biological Means for the Protection of Commercial Crops. [Internet] [Doctoral dissertation]. Florida International University; 2017. [cited 2019 Oct 24]. Available from: https://digitalcommons.fiu.edu/etd/3558 ; 10.25148/etd.FIDC004011 ; FIDC004011.

Council of Science Editors:

Simon AG. The Detection of an Invasive Pathogen through Chemical and Biological Means for the Protection of Commercial Crops. [Doctoral Dissertation]. Florida International University; 2017. Available from: https://digitalcommons.fiu.edu/etd/3558 ; 10.25148/etd.FIDC004011 ; FIDC004011


Florida International University

2. Stroud, James T. Using Introduced Species of Anolis Lizards to Test Adaptive Radiation Theory.

Degree: PhD, Biology, 2018, Florida International University

Adaptive radiation – the proliferation of species from a single ancestor and diversification into many ecologically different forms – has long been heralded as an important process in the generation of phenotypic diversity. However, the early stages of adaptive radiation are notoriously elusive to observe and study. In this dissertation, I capitalize on communities of introduced non-native Anolis lizards as analogues of early stage adaptive radiations. In Chapter II, I begin by reviewing the concept of “ecological opportunity” – a classic hypothesis put forward as a potential key to understanding when and how adaptive radiation occurs. In Chapter III, I investigate the mechanisms which allow for coexistence and community assembly among ecologically-similar species. To do this I investigate range dynamics and assembly patterns of introduced anoles on the oceanic island of Bermuda. I discover that interspecific partitioning of the structural environment facilitates species coexistence, however the order of species assembly was an important predictor of final community composition. In Chapter IV, I then investigate how interspecific interactions between coexisting species may drive phenotypic divergence. This is the process of character displacement, which has been widely hypothesized to be an important mechanism driving phenotypic divergence in adaptive radiations. To do this I investigate sympatric and allopatric populations of introduced Cuban brown anoles (Anolis sagrei) and Puerto Rican crested anoles (A. cristatellus) in Miami FL, USA. I identify morphological shifts in sympatry, driven by divergence in habitat use and decreases in abundance. This study provides evidence of how selection on both ecologically and sexually-important traits can both drive phenotypic divergence during character displacement. Finally, in Chapter V, after taking advantage of non-native species as model eco-evolutionary systems in previous chapters, I investigate the potentially harmful effects that their presence may have on vulnerable native biodiversity. To do this I investigate the conservation risk posed by newly-discovered populations of A. sagrei on Bermuda to Critically Endangered endemic Bermuda skinks (Plestiodon longirostris). Through a detailed analysis of habitat use, diet, population size, and morphology of A. sagrei on Bermuda, we conclude it likely poses a high conservation threat to P. longirostris through interspecific competition. Advisors/Committee Members: Kenneth J. Feeley, Christopher Baraloto, Maureen Donnelly, Hong Liu, Jonathan B. Losos.

Subjects/Keywords: ecology; evolution; adaptive radiation; anolis; anole; adaptive radiation; community assembly; species coexistence; interspecific interactions; evolutionary ecology; invasive species; conservation biology; Behavior and Ethology; Ecology and Evolutionary Biology; Evolution; Other Ecology and Evolutionary Biology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Stroud, J. T. (2018). Using Introduced Species of Anolis Lizards to Test Adaptive Radiation Theory. (Doctoral Dissertation). Florida International University. Retrieved from https://digitalcommons.fiu.edu/etd/3695 ; 10.25148/etd.FIDC006576 ; FIDC006576

Chicago Manual of Style (16th Edition):

Stroud, James T. “Using Introduced Species of Anolis Lizards to Test Adaptive Radiation Theory.” 2018. Doctoral Dissertation, Florida International University. Accessed October 24, 2019. https://digitalcommons.fiu.edu/etd/3695 ; 10.25148/etd.FIDC006576 ; FIDC006576.

MLA Handbook (7th Edition):

Stroud, James T. “Using Introduced Species of Anolis Lizards to Test Adaptive Radiation Theory.” 2018. Web. 24 Oct 2019.

Vancouver:

Stroud JT. Using Introduced Species of Anolis Lizards to Test Adaptive Radiation Theory. [Internet] [Doctoral dissertation]. Florida International University; 2018. [cited 2019 Oct 24]. Available from: https://digitalcommons.fiu.edu/etd/3695 ; 10.25148/etd.FIDC006576 ; FIDC006576.

Council of Science Editors:

Stroud JT. Using Introduced Species of Anolis Lizards to Test Adaptive Radiation Theory. [Doctoral Dissertation]. Florida International University; 2018. Available from: https://digitalcommons.fiu.edu/etd/3695 ; 10.25148/etd.FIDC006576 ; FIDC006576

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