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A bioeconomic model of a marine park AgEcon
Greenville, Jared W.; MacAulay, T. Gordon.
A spatial bioeconomic model of a fishery will be used to investigate the effect of creating a marine park in a heterogeneous environment. Focus will be placed on the relevant biological and economic conditions needed to provide a benefit to both fishers and conservationists alike. The fishing environment will be one of limited entry to better simulate the conditions which exist in many developed nations. Fishers will be assumed to operate across patched in which the fish stocks are linked via either sink-source or density dependant spatial relationships.
Tipo: Conference Paper or Presentation Palavras-chave: Bioeconomic; Marine protected area; Fisheries; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2004 URL: http://purl.umn.edu/58451
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AGGREGATION ISSUES IN PEST CONTROL ECONOMICS: A BIOECONOMIC APPROACH AgEcon
Young, Douglas L.; Smith, Elwin G.; Kwon, Tae-Jin.
Previous research has defined “aggregate pesticide expenditures” as the control variable; however, virtually all managerial recommendations and environmental restrictions target specific pesticides, rates, and crops. A bioeconomic approach considering particular pesticides on specific pests and crops is recommended for managerial-policy applications and testing for increasing returns. Exponential weed control and seven popular yield damage functional forms were estimated for a bioeconomic weed control model for winter wheat in Washington. Concavity with respect to herbicide rate was observed for most popular damage functions at normal weed densities and manufacturers’ label rates, but convexity existed outside these ranges and should be checked.
Tipo: Conference Paper or Presentation Palavras-chave: Bioeconomic; Data aggregation; Herbicide; Increasing returns; Pest control; Pesticide; Weed; Crop Production/Industries.
Ano: 2000 URL: http://purl.umn.edu/36448
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An Economic Valuation of Pollination Services in Georgia AgEcon
Barfield, Ashley; Bergstrom, John C.; Ferreira, Susana.
The production of many crops depends on biotic pollination. As pollinator populations decline, assessments of the potential consequential loss of economic value are critical. We estimate the economic value of pollination services ($608 million), crop vulnerability ratio (21 percent), and pollination’s contribution to agricultural production value (5 percent) for Georgia.
Tipo: Presentation Palavras-chave: Pollination; Colony Collapse Disorder; Georgia; Bioeconomic; Value; Vulnerability; Ecosystem Services; Crops; Honeybees; Pollinators; Pollination Dependency; Environmental Economics and Policy.
Ano: 2012 URL: http://purl.umn.edu/119780
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Bioeconomic Model of Community Incentives for Wildlife Management Before and After CAMPFIRE AgEcon
Fischer, Carolyn; Muchapondwa, Edwin; Sterner, Thomas.
This paper formulates a bioeconomic model to analyze community incentives for wildlife management under benefit-sharing programs like the Communal Areas Management Programme for Indigenous Resources (CAMPFIRE) in Zimbabwe. Two agents influence the wildlife stock: a parks agency determines hunting quotas, and a local community chooses to either aid or discourage outside poachers. Wildlife generates revenues from hunting licenses and tourism; it also intrudes on local agriculture. We consider two benefit-sharing regimes: shares of wildlife tourism rents and shares of hunting licenses. Resource sharing does not necessarily improve community welfare or incentives for wildlife conservation. Results depend on the exact design of the benefit shares, the size of...
Tipo: Working or Discussion Paper Palavras-chave: Bioeconomic; CAMPFIRE; Community; Poaching; Wildlife; Benefit sharing; Resource /Energy Economics and Policy; H41; Q20.
Ano: 2005 URL: http://purl.umn.edu/10717
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Bioeconomic Modeling of the Invasive Aquatic Plants Hydrilla verticillata (hydrilla), Eichhornia crassipes (water hyacinth), and Pistia stratiotes (water lettuce) and their impacts on angler effort on Florida lakes AgEcon
Adams, Damian C.; Lee, Donna J..
The invasive aquatic plants Hydrilla verticillata (hydrilla), Eichhornia crassipes (water hyacinth), and Pistia stratiotes (water lettuce) have the potential to negatively impact recreational use of Florida lakes if consistent, adequate control expenditures are not made. In the mid-1990's, Florida significantly reduced its spending on invasive aquatic plant control measures, which resulted in a significant increase in needed control expenditures in subsequent years. This paper attempts to formalize a relationship between coverage of these invasive aquatic plants and angler effort on Florida lakes using data on 38 lakes over 20 years. Estimated regression coefficients are used to simulate control alternatives, and expenditure cost-benefit comparisons are...
Tipo: Conference Paper or Presentation Palavras-chave: Hydrilla; Water hyacinth; Water lettuce; Bioeconomic; Invasive; Control; Resource /Energy Economics and Policy.
Ano: 2005 URL: http://purl.umn.edu/19146
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Habitat Benefit Assessment and Decision-making: A Report to the National Marine Fisheries Service AgEcon
Boyd, James; Sanchirico, James N.; Shabman, Leonard A..
Habitats and the services they provide are part of our nation's portfolio of natural capital assets. As for many components of this portfolio, it is difficult to assess the value of their services, and this complicates regulators' investment decisions, especially when the alternative use is measurable. The principal objective of this report is to suggest possible strategies for the National Marine Fisheries Service (NMFS) as it applies economic analyses and arguments in support of the agency's trustee responsibilities. Many approaches are possible, and as we discuss, the "right" strategy will depend on the questions asked, the resources available, and the agency's role in the consultation process. We discuss in detail bioeconomic modeling and ecosystem...
Tipo: Working or Discussion Paper Palavras-chave: Bioeconomic; Ecological indicators; Ecosystem services; Resource /Energy Economics and Policy; Q20.
Ano: 2004 URL: http://purl.umn.edu/10904
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Out of the pot and into the money: Managing the Western Rock Lobster Fishery by ITE's or ITQ's? AgEcon
McLeod, Paul; Lindner, Robert K.; Nicholls, John.
The West Coast Rock Lobster fishery is Australia's most valuable commercial fishery. Around 550 vessels harvest an average of 10,500 tonnes of lobster per annum. The industry has an enviable track record of biological management based on a variety of input controls, although three significant pot reduction interventions have been necessary in recent years. An evaluation of a range of possible future management regimes is reported in this paper. The results were derived from a purpose built bio-economic model three separate biological zones in the fishery using non linear optimization to produce ten year steady state solutions for alternative management options. Management options included the current pot control system, and versions of variable...
Tipo: Conference Paper or Presentation Palavras-chave: Rock lobster; Quotas; ITQs; Western Australia; Bioeconomic; Economic benefits; Resource /Energy Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/10403
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Stepping stones for biological invasion: A bioeconomic model of transferable risk AgEcon
Warziniack, Travis; Finnoff, David C.; Bossenbroek, Jonathan; Shogren, Jason F.; Lodge, David.
Herein we model the widespread dispersal and management of an invasive species as a weak-link public good. The risk of introduction is driven in part by economic activity, is influenced by policies directed at the risk, and economic activity responds/adapts to the risk. Framed around recent introductions and rapid spread of dreissenid mussels in the Western United States, we find three key results. First, partial equilibrium estimates of welfare loss are significantly overestimated relative to general equilibrium estimates. If ecosystem services and market goods are substitutes the partial equilibrium bias is greater than if they are compliments. Second, well-intended policies do not necessarily reduce overall risk; risk reduction actions can transfer risk...
Tipo: Conference Paper or Presentation Palavras-chave: Bioeconomic; Invasive species; Risk; Weak-link; Welfare; Environmental Economics and Policy; Risk and Uncertainty; Q2; Q26; Q57.
Ano: 2010 URL: http://purl.umn.edu/60957
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The Economic Significance of Bioeconomic Feedback Loops: The Case of a Recreational Fishery AgEcon
Deisenroth, Daniel B.; Craig, Bond.
Tipo: Conference Paper or Presentation Palavras-chave: Bioeconomic; Feedback; Optimal Control; Fishery; Dynamic; Environmental Economics and Policy; Q57.
Ano: 2010 URL: http://purl.umn.edu/61414
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The Economics of Terrestrial Invasive Species: A Review of the Literature AgEcon
Olson, Lars J..
This paper reviews the literature on the economics of invasive species management as it applies to invasive species in general and terrestrial invasive species in particular. The paper summarizes a number of recent studies that assign values to the economic impact of terrestrial invasive species on a national scale. This is followed by a review of the economic literature on control and prevention of a biological invasion and the literature on international trade and trade policy with invasive species. The paper then reviews selected studies on terrestrial invasive plants, animals, and microbes, respectively.
Tipo: Journal Article Palavras-chave: Terrestrial invasive species; Prevention; Control; International trade; Bioeconomic; Resource /Energy Economics and Policy.
Ano: 2006 URL: http://purl.umn.edu/10181
Registros recuperados: 10
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