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Curriculum vitae



School of Natural Resources and the Environment

The University of Arizona






School of Natural Resources and the Environment

The University of Arizona



About


I am a postdoctoral researcher based in the Combrink Lab at the University of Arizona. My current research lies in unraveling the intricate dance between ecological systems, climate change, and zoonotic diseases using cutting-edge spatial simulations.  In my current role, I explore the current and future risks of mosquito-borne viruses in Arizona, blending my expertise in disease modeling with a commitment to practical conservation solutions. 
I hold a Ph.D. in Ecology from Ewha Womans University, where my research delved into innovative models addressing complex issues in animal conservation. Proficient in GIS and R programming, I bring a tech-savvy approach to my work, weaving together geographic information systems and ecological modeling.
Research Statement
Ecological modeling provides unique opportunities to understand systems and simulate conservation management scenarios to optimize conservation outcomes without overly invasive measures or decisions lacking scientific basis that may be more costly than beneficial. Now more than ever, it is time to bring detailed empirical and field-based investigations together to conduct rigorous academic work that has real-world conservation relevance. 
As a researcher, I am interested in applying ecological modeling to issues including conservation management of threatened species, species reintroductions, invasive species, road-kill mitigation, habitat connectivity and dispersal pathways, and climate change refugia. On top of these direct applications, I intend to further the field of ecological modeling through innovative methods that will have significant impacts on predictive modeling. To match my lofty goals in research, I have an extensive and diverse background in both ecological modeling and applied ecology. I am proficient in a variety of GIS and modeling softwares and tools, including the ArcGIS suite, R (through RStudio), MaxEnt (maximum entropy modeling platform), HexSim (model framework for spatially explicit, individual-based population simulations), and Linkage Mapper (for wildlife habitat connectivity analysis). 
During my time as a researcher in South Korea, I have made valuable connections to labs in multiple countries across Asia. I am actively collaborating on manuscripts with researchers in China, Taiwan, Russia, and Mongolia. Going forward, I intend to maintain these connections and create new collaborations between the USA and Asia within the conservation sphere. Conservation research is emerging and evolving in Asia, and I am particularly interested in developing joint research programs between the USA and Asia. 
Ecological models and conservation management:  One of my main research goals will continue to be the direct application of individual-based models to conservation management. Previously, I used Vortex individual-based modeling to create population viability analyses (PVAs) of threatened treefrog species – Dryophytes suweonensis and Dryophytes flaviventris – in South Korea, which is intended as a management recommendation for conservation managers. Under current conditions without conservation management, both species face imminent extinction. However, a management strategy tiered by designation priority involving reducing habitat degradation, reducing the effects of catastrophic events, and improving survival rates would ensure the long-term survival of both species. I have also collaborated with officials from the Korea National Park Service on a population model of reintroduced Asiatic black bears (Ursus thibetanus) in Jiri Mountain National Park utilizing HexSim. While the initial goal of this project was to determine the carrying capacity of the national park, I expanded the study to simulate the recolonization of bears across the country with and without an additional reintroduction, concluding that a second reintroduction is needed for full restoration of the species in South Korea. 
Left: Subpopulation patches with population sizes and linkage pathways for Dryophytes suweonensis and D. flaviventris in the Republic of Korea. Right: metapopulation sizes by number of sites designated for protection..
I have also collaborated with officials from the Korea National Park Service on a population model of reintroduced Asiatic black bears (Ursus thibetanus) in Jiri Mountain National Park utilizing HexSim. While the initial goal of this project was to determine the carrying capacity of the national park, I expanded the study to simulate the recolonization of bears across the country with and without an additional reintroduction, concluding that a second reintroduction is needed for full restoration of the species in South Korea. 
Simulation results (left) of reintroduced Asiatic black bears in South Korea with and without additional reintroduction. Habitat cores and linkage pathways shown on right overlaid with highways, tunnels, and existing wildlife crossings.
Identifying climate change refugia of individual and multiple species: Another of my research goals is to predict climatic stability and future climate change refugia for multi species globally. One of my thesis chapters focused on predicting the present range and climate change impacts for a Korean salamander, Karsenia koreana, adding to the knowledge of the understudied species2. This study also determined that under the two more extreme climate change scenarios, the species would have significantly reduced suitable climate within its current range, necessitating translocation (Fig. 3). Building on this research I would like to identify high biodiversity refugia on a global scale. The ultimate goal of this research will be to overlap areas of high multi species refugia for amphibians with current protected areas to determine if current protections will remain adequate under climate change scenarios. 
Predicted range (left) of Karsenia koreana in South Korea with future projected suitability (right) under four climate change scenarios.
Improve and innovate modeling methods: During my Ph.D., I created a novel methodology for adjusting climatic variables to latitudinal gradients for application in ecological modeling. I found that incorporating latitude-adjusted climatic variables improved model fit, especially for a species with a wide latitudinal range. Moving forward, I will explore the application of this methodology to model projections under future climates, as climate change will have varying impacts across latitudes and species with wide latitudinal ranges especially will be impacted disproportionately across latitudes.
A novel methodology for incorporating latitudinal variation in ecological niche models.
Latitude adjusted annual mean temperature across latitudes in the present, with comparisons of adjusted annual mean temperature under intermediate (RCP 4.5) and worst-case (RCP 8.5) climate change scenarios.
PhD Thesis Presentation
International collaborators
Best Oral Presentation Award EAFES 2023
Dryophytes flaviventris symposium 2021
Dryophytes flaviventris symposium 2021
Botany field class
Korean salmon field work
Field work in Taiwan
WCH 2020
Field work in Russia
Ecological Modelling Conference 2017
Costa Rica field trip
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