A Bioeconomic Model of Pollution and Resource Management PDF Download

Author: Jon M. Conrad
Publisher:
ISBN:
Category : Conservation of natural resources
Languages : en
Pages : 32

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Author: Jon M. Conrad
Publisher:
ISBN:
Category : Conservation of natural resources
Languages : en
Pages : 36

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Author: A. Collins
Publisher:
ISBN:
Category : Biology, Economic
Languages : en
Pages :

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Author: David Michael Kling
Publisher:
ISBN: 9781303539244
Category :
Languages : en
Pages :

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This dissertation introduces two bioeconomic models and an ecological-economic model of optimal natural resource management. I use the first bioeconomic model to study the control of invasive lionfish, which are a growing threat to native marine life in the Western Atlantic. I account for imperfect knowledge of lionfish abundance by posing the problem as a continuous-state partially observable Markov decision process (POMDP). This allows me to portray the dynamics of approximately optimal monitoring and population control. My results demonstrate that early monitoring helps limit the impact of a local lionfish infestation. I also consider the problem of native species bycatch arising from lionfish removal and identify scenarios where it is optimal to tolerate bycatch in order to suppress lionfish. I develop an ecological-economic model to address the management of an invasive ecosystem engineer: a species that manipulates an environmental state in a way that is important for predicting its population dynamics. I use pseudospectral methods to numerically explore jointly optimal environmental restoration and biomass removal. My results show that accounting for the nonconvex structure of engineer-environment feedback may help resource managers avoid wasteful decisions. For example, I show that when the engineer's dynamics are self-limiting in a region of the state space, the optimal response may be a no-intervention "ecological strategy." Managed relocation is a controversial climate change adaptation policy that involves moving a climate-threatened species to areas outside of its historic range where it is expected to face more favorable conditions in the future. I explore the basic bioeconomics of managed relocation. In my nonautonomous spatial-dynamic model, a resource manager maximizes the net present value of nonconsumptive benefits by moving the focal species' biomass. I find that economic heterogeneity can induce transient patterns in the optimal policy that are qualitatively similar to those that result solely from variation in biological or climate parameters. I also consider a selection of second-best policies. I demonstrate that limiting the resource manager's spatial margin of action may carry a high cost when it bars the use of a "life boat," or a site that provides a temporary climate refuge for the focal species.

Author: Michel De Lara
Publisher: Springer Science & Business Media
ISBN: 3540790748
Category : Science
Languages : en
Pages : 264

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Nowadays, environmental issues including air and water pollution, climate change, overexploitation of marine ecosystems, exhaustion of fossil resources, conservation of biodiversity are receiving major attention from the public, stakeholders and scholars from the local to the planetary scales. It is now clearly recognized that human activities yield major ecological and envir- mental stresses with irreversible loss of species, destruction of habitat or c- matecatastrophesasthemostdramaticexamplesoftheire?ects.Infact,these anthropogenic activities impact not only the states and dynamics of natural resources and ecosystems but also alter human health, well-being, welfare and economic wealth since these resources are support features for human life. The numerous outputs furnished by nature include direct goods such as food, drugs, energy along with indirect services such as the carbon cycle, the water cycle and pollination, to cite but a few. Hence, the various ecological changes our world is undergoing draw into question our ability to sustain economic production, wealth and the evolution of technology by taking natural systems into account. The concept of “sustainable development” covers such concerns, although no universal consensus exists about this notion. Sustainable development - phasizes the need to organize and control the dynamics and the complex - teractions between man, production activities, and natural resources in order to promote their coexistence and their common evolution. It points out the importance of studying the interfaces between society and nature, and es- ciallythecouplingbetweeneconomicsandecology.Itinducesinterdisciplinary scienti?c research for the assessment, the conservation and the management of natural resources.

Author: Debabrata Purohit
Publisher: LAP Lambert Academic Publishing
ISBN: 9783838361635
Category :
Languages : en
Pages : 96

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Economic progress and ecological balance always have conflicting interests. The necessities and comforts of human beings, invariably robs the ecological structure, of the nature. One such activity is harvesting. This, more often than not, leads to the extinction of a species of life. The exploitation of fish populations provides some classic examples of disastrous exploitation of renewable resources. Often it is possible to prevent such extinction by proper management. If a particular species is on the brink of extinction, then a properly planned regulating policy ensures the damage to the ecosystem is minimal and saves it from the extinction.This book provides an insight into the conservation and management aspects of the fishery, which is largely unregulated. Four different models are introduced, considering taxation as a control instrument and gompertz model. Also realistic catch rate, Stability, and optimal harvest policy is thoroughly analyzed.So this book will be a great help to the biologists, conservationists, scientists, researchers and anyone, who takes keen interest in the field of conservation and management of natural resources.

Author: Guillermo Flichman
Publisher: Springer Science & Business Media
ISBN: 9400719027
Category : Business & Economics
Languages : en
Pages : 227

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This book has the purpose of providing the "state of the arts" concerning bio-economic modelling dealing with agricultural systems. In most cases, the contributions use a methodology combining the use of biophysical and economic models, in all cases, an engineering production function approach is totally or partially applied. This practice is being developed in the last years as a response to concrete policy matters: agricultural policies are increasingly combined with environmental and natural resources policies, and this reality involves the need of an integrated assessment, that current economic models are not able to provide.

Author: Edward Tower
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 290

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Author: Bruno Barbier
Publisher: Intl Food Policy Res Inst
ISBN: 0896291251
Category : Political Science
Languages : en
Pages : 81

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Farmers who live in fragile tropical hillsides often operate under severe resource constraints and face difficult tradeoffs when confronted with changes in production conditions. Using a bioeconomic linear programming model, this study simulates the effects of population, market, and technological changes on farmers' income and on their management of the natural resource in a hillside area of Central Honduras. The results show that economic growth and agricultural intensification are not necessarily adverse for fragile environments. In fact, farmer incomes would be much lower and degradation much higher if intensive agriculture had not been adopted. Such a result, however, must be framed within a complex set of conditioning factors, among which agroecology plays a fundamental role. Although the economic advantages of horticultural production are clear in the area studied, this strategy is not suited for all contexts. This report offers a series of policy recommendations that implicitly recognize such limitations, thereby helping to direct resources where they will have their greatest impact.

Author: Anthony Charles
Publisher: Halifax, N.S. : Centre for Resource Systems Analysis
ISBN:
Category : Fisheries
Languages : en
Pages : 324

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