Data-Driven Modeling For Social-Ecological Resilience within a One Health Framework

dc.contributor.authorSmith, Gabrielle Leeen
dc.contributor.committeechairRist, Cassidyen
dc.contributor.committeechairLewis, Bryan Leroyen
dc.contributor.committeememberSmith, Edward J.en
dc.contributor.committeememberAlexander, Kathleen Annen
dc.contributor.committeememberChilds, Lauren Maressaen
dc.contributor.departmentGenetics, Bioinformatics, and Computational Biologyen
dc.date.accessioned2025-06-07T08:04:23Zen
dc.date.available2025-06-07T08:04:23Zen
dc.date.issued2025-05-21en
dc.description.abstractTechnological advancements have vastly expanded the scope of questions that can be explored within health systems. The One Health framework recognizes the interconnectedness of human, animal, and environmental health systems; the concept of social-ecological resilience (SER) incorporates the social, cultural, and political factors that can also impact how health systems respond and adapt to changes into this framework. This dissertation adopts this approach to health systems to investigate the role of advanced data-driven modeling techniques in understanding resilience mechanisms. Here, social-ecological resilience within a One Health framework is explored in both disease-affected animal populations and nutrition-sensitive agricultural systems. In animal populations, social-ecological factors can be inferred through observable social behaviors that contribute to population persistence and disease resilience. Chapter 2, employ a stochastic age-structured model of a banded mongoose (Mungos mungo) population in northern Botswana affected by the fatal Mycobacterium mungi pathogen to simulate population and disease dynamics. Model simulations reveal that certain social-ecological factors such as Allee Effects and group fusions, provide buffers to extinction events and offset disease effects. The findings also reveal that environmental heterogeneity influences the population and disease dynamics. This suggests a two-way interaction between social-ecological and environmental factors; a finding critical to the understanding of SER within an OH framework. The latter chapters shift focus to agricultural systems as key contributors to nutritional resilience, particularly in Sub-Saharan Africa (SSA), where undernutrition remains prevalent. Chapter 3 presents a systematic scoping review to characterize quantitative assessments of the impact of agricultural investments and programs (AIPs) on health or nutritional outcomes in SSA. This review revealed significant gaps in the representation of SER perspectives in nutrition-focused AIPs and highlighted the importance of interdisciplinary collaboration. The gaps found in this literature review motivated the development of the modeling process framework proposed in Chapter 4. This framework provides a structured approach for incorporating data-driven models to analyze nutritional resilience, predict the nutritional impact of interventions, and evaluate data suitability for such analyses. The findings from our application of this framework reinforce the importance of robust data architecture and multisectoral collaboration to effectively and contextually mitigate undernutrition. Collectively, these chapters advance data-driven interdisciplinary methodologies for resilience research and demonstrate the value of SER perspectives in modeling approaches in both ecological and nutrition-sensitive agricultural settings.en
dc.description.abstractgeneralRecent technological advancements have allowed the complexity of questions that can be explored using data to rapidly grow. These advances are particularly useful for exploring intricately connected health systems. The One Health approach to health systems acknowledges the interconnectedness of human, animal, and environmental health; the concept of social-ecological resilience (SER) expands this approach to also consider the social, cultural, and political factors that can also impact how health systems respond and adapt to changes. This research explores how advanced data-driven modeling techniques can contribute our understanding of health in both One Health and social-ecological systems. Here, social-ecological resilience within a One Health framework is explored in both disease-affected animal populations and nutrition-sensitive agricultural systems. Unlike human populations, social-ecological factors such as culture and politics in animal populations are not always explicitly defined. However, observable social behaviors, such as babysitting vulnerable young or the eviction of individuals as a result of overcrowding, describe social dynamics that govern population sizes and group interactions similar to social-ecological factors in humans. In Chapter 2, modeling techniques are employed to simulate the population and disease dynamics of a banded mongoose (Mungos mungo) population in northern Botswana affected by the fatal Mycobacterium mungi pathogen. Analyses of this model reveal that land-type has a significant impact on how factors like social behaviors contribute to population resilience against infectious disease threats. The findings also reveal that certain social behaviors such as Allee Effects and group fusions, are responsible for maintaining the persistence of the mongoose despite the infectious disease threat. Moreover, these findings highlight a critical tension between social behaviors that support population resilience (such as events that increase group-living sizes) and also facilitate infectious disease transmission. This tension between the risks and benefits of social interactions presents challenges in understanding and modeling the balance between short-term population buffering effects against long-term vulnerabilities. The remaining chapters investigate the role of agriculture in reducing undernutrition, particularly in Sub-Saharan Africa (SSA), as undernutrition persists at high rates in this global region. Chapter 3 begins by performing a broad-scoping systematic review of literature to characterize common practices for quantitatively assessing the impact of agricultural investments and programs (AIPs) on health or nutritional outcomes in SSA. This review revealed significant gaps in the representation of SER perspectives in nutrition-focused AIPs and highlighted the importance of interdisciplinary collaboration. The gaps found in this literature review motivated the development of the modeling process framework proposed in Chapter 4. This framework provides guidelines for using data-driven models to effectively inform the development of interventions by predicting the nutritional impact of interventions while also assessing the suitability of available data to perform such analyses. The findings from our application of this framework emphasize the importance of both data and collaborators from different sectors. Together, these studies highlight the importance of interdisciplinary frameworks and methodologies to advance data-driven research in resilience.en
dc.description.degreeDoctor of Philosophyen
dc.format.mediumETDen
dc.identifier.othervt_gsexam:43117en
dc.identifier.urihttps://hdl.handle.net/10919/135410en
dc.language.isoenen
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectData-driven modelingen
dc.subjectstochastic modelingen
dc.subjectstatistical modelingen
dc.subjectmathematical biologyen
dc.subjectcomputational biologyen
dc.subjectdata scienceen
dc.subjectdata analyticsen
dc.subjectinfectious diseasesen
dc.subjectbanded mongooseen
dc.subjectundernutritionen
dc.subjectnutrition-sensitive agricultureen
dc.titleData-Driven Modeling For Social-Ecological Resilience within a One Health Frameworken
dc.typeDissertationen
thesis.degree.disciplineGenetics, Bioinformatics, and Computational Biologyen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.nameDoctor of Philosophyen

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