Showing 1 - 10 of 75
The extent to which conservation is feasible is constrained by budgets and the financial sacrifice stakeholders are willing to bear. Therefore a possible objective for conserving a species is to minimise the cost of achieving that stated aim. For example, if a minimum viable population (MVP) of...
Persistent link: https://www.econbiz.de/10010572631
The possibility that genetically modified (GM) crops may contaminate non-GM crops through pollen-mediated gene flow presents a challenge to coexistence of GM agriculture with conventional and organic farming systems. In this paper an analytical model of coexistence is developed that allows for...
Persistent link: https://www.econbiz.de/10010572635
The aim of this paper is to compare different environmental policies for cost-effective habitat conservation on agricultural lands, when the desired spatial pattern of reserves is a random mosaic. We use a spatially explicit mathematical programming model which studies the farmers' behavior as...
Persistent link: https://www.econbiz.de/10010608178
significant shift in conservation in the Kgalagadi Transfrontier Park and environs in South Africa. Biodiversity conservation will … environmental stewards. To assess their attitude toward biodiversity conservation, this study used the contingent valuation method … to investigate the economic values the communities assign to biodiversity conservation under three land tenure …
Persistent link: https://www.econbiz.de/10011043731
This paper presents a model of pest impacts in a multispecies framework. Strong detrimental relationships often form between pest populations and other biota, damaging ecosystem services and reducing social welfare. Under these circumstances, optimal pest management must account for the...
Persistent link: https://www.econbiz.de/10010939601
The recent and rapid increase in elephant poaching has caused international alarm. A fixed-effects panel-data regression model was employed to identify possible causes of this upsurge. Ivory seizures were categorised as worked or raw. These categories were also divided into four weight classes...
Persistent link: https://www.econbiz.de/10010939606
This study uses the directional output distance function, a multi-output economic production frontier model, to value the physical tradeoffs between agricultural production and wetland condition in the U.S. Mid-Atlantic region Nanticoke River watershed. We combine detailed ecological indicator...
Persistent link: https://www.econbiz.de/10010930829
The introduction of invasive alien species (IAS) is generally acknowledged to depend both on the propagule pressure imposed by openness to international trade and on the health of the receiving ecosystem. Bio-geographic factors however play a crucial role in determining the level of risk...
Persistent link: https://www.econbiz.de/10010930857
The use of economic incentives for biodiversity (mostly Compensation and Reward for Environmental Services including … Payment for ES) has been widely supported in the past decades and became the main innovative policy tools for biodiversity …
Persistent link: https://www.econbiz.de/10011263724
Climate change scenarios predict an increase of extreme rain events, which will increase the risk of wastewater flooding and of missing legal water quality targets. This study elicits the willingness to pay to reduce ecological and health risks from combined sewer overflows (CSOs) in rivers and...
Persistent link: https://www.econbiz.de/10010743842