A5043963411- Sustainability and Ecological Systems Analysis
- Global Energy and Sustainability Research
- Ecosystem dynamics and resilience
- Agriculture Sustainability and Environmental Impact
- Environmental Impact and Sustainability
- Advanced Thermodynamics and Statistical Mechanics
- Isotope Analysis in Ecology
- Cognitive Science and Mapping
- Complex Systems and Decision Making
- Marine and fisheries research
- Marine and coastal ecosystems
- Wildlife-Road Interactions and Conservation
- Complex Network Analysis Techniques
- Marine Bivalve and Aquaculture Studies
- Fish Ecology and Management Studies
- Advanced Text Analysis Techniques
- Species Distribution and Climate Change
- Physiological and biochemical adaptations
- Building Energy and Comfort Optimization
- Data Visualization and Analytics
- Food Security and Health in Diverse Populations
- Photovoltaic Systems and Sustainability
- Land Use and Ecosystem Services
- Catalysis for Biomass Conversion
- Process Optimization and Integration
University of Georgia
2012-2024
Georgia College & State University
2013-2018
Engineering Systems (United States)
2009-2013
Understanding the effects of individual organisms on material cycles and energy fluxes within ecosystems is central to predicting impacts human-caused changes climate, land use, biodiversity. Here we present a theory that integrates metabolic (organism-based bottom-up) systems (ecosystem-based top-down) approaches characterize how metabolism individuals affects flows stores materials in ecosystems. The predicts average residence time carbon molecules, total system throughflow (TST), amount...
Earth is a chemical battery where, over evolutionary time with trickle-charge of photosynthesis using solar energy, billions tons living biomass were stored in forests and other ecosystems vast reserves fossil fuels. In just the last few hundred years, humans extracted exploitable energy from these fossilized fuels to build modern industrial-technological-informational economy, grow our population more than 7 billion, transform biogeochemical cycles biodiversity earth. This rapid discharge...
Hydrologic connectivity is critical to the structure, function, and dynamic process of river ecosystems. Dams, road crossings, water diversions impact by altering flow regimes, behavioral cues, local geomorphology, nutrient cycling. This longitudinal fragmentation ecosystems also increases genetic reproductive isolation aquatic biota such as migratory fishes. The cumulative effects on fish passage many structures along a are often substantial, even when individual barriers have negligible...
Abstract Size generally dictates metabolic requirements, trophic level, and consequently, ecosystem structure, where inefficient energy transfer leads to bottom-heavy structure biomass decreases as individual size (or level) increases. However, many animals deviate from simple size-based predictions by either adopting generalist predatory behavior, or feeding lower in the web than predicted their size. Here we show that behavior at large body increase overall shift ecosystems a pyramid...
Global food security for a population of 9 billion by 2050 depends on complex socioeconomic and biophysical system. Current strategies involve decreasing losses, increasing yields, improving distribution efficiencies. Herein, we use systems-based approach to show that contrary historically rising global dietary energy production (DEP: per capita calories grown or captured), self-sufficiency at the country-level has been in four-decade decline as number countries generating insufficient DEP...
Abstract This paper presents a theoretical basis for cultivating engineering education as complex system that will prepare students to think critically and make decisions with regard poorly understood, ill-structured issues. Integral this is solution space construct developed presented benchmark evaluating problem-solving orientations emerge within students' thinking they progress through an curriculum. It proposed the traditional model, while analytically rigorous, characterised by...
Marine ecosystems are generally expected to have bottom-heavy trophic structure (more plants than animals) due size-based constraints arising from increased metabolic requirements and inefficient energy transfer. However, (allometric) approaches often limited confined trophic-level windows where transfer is predicted by size alone constrained a balance between bottom-up top-down control at steady state. In real food webs, flow more complex imbalances in processes can also shape structure. We...