Consulta: creatorFacets:"van der Werf,   Wopke"
Registros recuperados: 2
Data/hora: 01/06/2024 08:40:01

Economics of controlling invasive species: optimal control and stability of ecological-economic system
Provedor de dados: 31
Autores: Chalak,   Morteza; Ruijs,   Arjan; Hemerik,   Lia; van der Werf,   Wopke; van Ierland,   Ekko C.
Natural enemies such as herbivores that are introduced to reduce invasive plants can spill over into nature, threaten indigenous species and impose significant costs. We develop a bioeconomic model to analyse the optimal control management strategy of an introduced herbivore that has spilled over from a managed system to a natural area. Cost-effective control strategies are analysed that reduce the spillover effects of herbivores on endangered plants species to reduce the risk of extinction and increase benefits obtained from the ecosystem. We consider two competing indigenous plant species as the representatives of the plant community. Only one of these species is consumed by introduced herbivore. We show that the optimal level of controlling herbivores...
Tipo: Presentation
Palavras-chave: Economics; Biological agent; Externality; Spillover; Control; Environmental Economics and Policy.
Ano: 2012
URL: http://purl.umn.edu/124374

A Risk Assessment Model on Pine Wood Nematode in the EU
Provedor de dados: 31
Autores: Soliman,   T.; Hengeveld,   G.M.; Robinet,   C.; Mourits,   Monique; van der Werf,   Wopke; Oude Lansink,   Alfons G.J.M.
Pine wood nematode, B. xylophilus poses a serious threat for the European forest industry. This study applies a quantitative risk assessment to analyze the risk of pine wood nematode in the EU, by estimating the reduction expected within forestry stock available for wood supply and its downstream roundwood market. Spatial analysis is used to join information on climate suitability, host distribution, pest spread and value of assets. Economic impacts are presented spatially on a NUTS-2 scale based on partial budgeting technique and for the EU as a whole based on partial equilibrium modeling. Results highlight the Southern regions of Europe as high risk areas with a total impact on available forestry stock of 19,000 M € after 20 years of an outbreak and no...
Tipo: Conference Paper or Presentation
Palavras-chave: Risk assessment; Pine wood nematode; Economic analysis; EU; Crop Production/Industries; Risk and Uncertainty.
Ano: 2011
URL: http://purl.umn.edu/116010