Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 24 for “"Bioeconomic"”.
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Optimal bioeconomic management of changing marine resources
Marine populations are increasingly subjected to changing conditions whether through harvest or through broad-scale habitat change. Historically, few models have accounted for such trends over time, and even fewer have been used to study how trends affect optimal harvests. I developed and analyzed …
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Optimal bioeconomic management of changing marine resources
Marine populations are increasingly subjected to changing conditions whether through harvest or through broad-scale habitat change. Historically, few models have accounted for such trends over time, and even fewer have been used to study how trends affect optimal harvests. I developed and analyzed …
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Pesticide regulatory actions and the development of pest resistance: a dynamic bioeconomic model
… encountered when trying to optimize complex bioeconomic models. As a result, regulatory efforts may actually promote increased susceptibility depletion and the rapid emergence of resistance. This study overcame these problems by forming a dynamic bioeconomic model that combined: 1) a widely …
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Integrated approaches to circular bioeconomic systems considering supply chain sustainability and resilience in agriculture
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01
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Heterogeneous Motivations and Challenges of Regenerative Agriculture in Saskatchewan: Insights from Case Studies and Bioeconomic Modelling
Regenerative agriculture is an alternative farming system proposed to improve soil health, improve economic sustainability, and mitigate climate change. There are a set of principles commonly agreed upon that help guide producers: limit disturbance, armour the soil, increase plant diversity, keep …
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On Sustainable Use of Renewable Resources in Protected Areas as an Instrument of Biodiversity Conservation : A Bioeconomic Analysis
… and poaching is investigated. A nonlinear bioeconomic model with two state variables (resource stock, management capital stock) and two control variables (harvest rate, investment rate) is developed on the basis of the traditional bioeconomic model and optimal control theory. The model …
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Bioeconomics Of Invasive Species: The Gypsy Moth
This dissertation studies the bioeconomics and management of an invasive species. It uses gypsy moth as an example to examine the optimal control of invasive species. This dissertation is composed of five chapters. Chapter one provides an overview of the current bioeconomic research and the main …
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Incorporating Agroforestry Into Water Quality Trading: Evaluating Economic-Environmental Tradeoffs
… We build a flexible, accessible, and modular bioeconomic modeling system as a proof-of-concept to evaluate economic-environmental tradeoffs farmers face in an effort to support program participation and achieve environmental goals. We couple a biophysical nitrogen mass-balance model with an …
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Marine protected areas in the management of artisanal fisheries
… The two connectivities were integrated in bioeconomic models to assess the relationship between reserve size, fishing effort and harvests. Using a Beverton and Holt recruitment function, an age-structured bioeconomic model for the dominant target species, Unicorn fish (Naso unicornis), was …
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Three essays on fisheries economics
… fishery management problems within a stochastic bioeconomic model, the tradeoffs between current and future consumption are clear. The second theme explored in this essay is the efficiency of tradable permits system in the presence of trade restrictions. The third theme explored in this …
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On the economic optimality of marine reserves when fishing damages habitat
In this thesis, I expand a spatially-explicit bioeconomic fishery model to include the negative effects of fishing effort on habitat quality. I consider two forms of effort driven habitat damage: First, fishing effort may directly increase individual mortality rates. Second, fishing effort may …
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On the economic optimality of marine reserves when fishing damages habitat
In this thesis, I expand a spatially-explicit bioeconomic fishery model to include the negative effects of fishing effort on habitat quality. I consider two forms of effort driven habitat damage: First, fishing effort may directly increase individual mortality rates. Second, fishing effort may …
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Economic Aspects of Crop Pest Management and Monarch Conservation
… Matsumura) based on a plant-level spatiotemporal bioeconomic model of infestation. Findings indicate that the optimal profit from UAV based scouting is equivalent to that from manual scouting. But its greater tendency to detect false positives can also trigger frequent unnecessary treatments and …
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Synthetic Auxin Engineering: Building a Biofoundry Platform
… leveraged as tools or applied technologies with bioeconomic relevance. However, synthetic biology enables the transfer of genes, circuits, networks, and even whole chromosomes between organisms. This approach can be leveraged to port genetic circuits into simple model organisms to control …
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Potentiating Algae, Modernizing Bioeconomies: Algal Biofuels, Bioenergy Economies, and Built Ecologies in the United States and Turkey
… its compatibility with new biotechnologies and bioeconomic markets. At its heart, this dissertation troubles the notion of potentiality in two ways: it disrupts imaginaries of algaes potential as a natural, innate sustainable energy resource, while it simultaneously de-naturalizes ideas about …
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Movement and trophic ecology of large pelagic fishes connecting surface waters with the Ocean’s Twilight Zone
… my earlier diet sourcing results, I adapt a bioeconomic model with a new predator-prey dynamic to evaluate the effects of potential mesopelagic fisheries on their predators with bigeye tuna as the representative predator. Model results highlight the importance of recognizing predator-prey …
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Movement and Trophic Ecology of Large Pelagic Fishes Connecting Surface Waters with the Ocean's Twilight Zone
… my earlier diet sourcing results, I adapt a bioeconomic model with a new predator-prey dynamic to evaluate the effects of potential mesopelagic fisheries on their predators with bigeye tuna as the representative predator. Model results highlight the importance of recognizing predator-prey …
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