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.
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Showing 1 to 10 of 10 for “"bioeconomic model"”.
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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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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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Marine protected areas in the management of artisanal fisheries
… of spillover gradients using Generalised Linear Models and economic production functions found evidence of spillovers up to 4 km from the MPA. The second connectivity study modelled fishers’ spatial behaviour, using a random utility framework and random parameters logit estimation. Fishers …
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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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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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Heterogeneous Motivations and Challenges of Regenerative Agriculture in Saskatchewan: Insights from Case Studies and Bioeconomic Modelling
… objective is to create a renewable resource model to understand and model the economic motivations of the case studies. Regenerative agricultural practices focus on soil health management and are a large reason for why many adopt these practices. We construct a model where the representative …
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Movement and trophic ecology of large pelagic fishes connecting surface waters with the Ocean’s Twilight Zone
… on mesopelagic prey using a Bayesian mixing model approach that estimated 50-60% of their temperate carbon is sourced from mesopelagic food webs. Next, I take a larger view of epi- and mesopelagic food webs by sampling simultaneously across a pelagic food web from bottom to top at one point …
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Movement and Trophic Ecology of Large Pelagic Fishes Connecting Surface Waters with the Ocean's Twilight Zone
… on mesopelagic prey using a Bayesian mixing model approach that estimated 50-60% of their temperate carbon is sourced from mesopelagic food webs. Next, I take a larger view of epi- and mesopelagic food webs by sampling simultaneously across a pelagic food web from bottom to top at one point …
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Environmental health risks, inequality and welfare beyond GDP
… To explore this issue, we develop a two-sector bioeconomic model with empirical application for the case of fishery in Ghana. We demonstrate that both externalities impact the productivity and profitability of the artisanal fishery. Our empirical results show that, between 1986 and 2013, …