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Strategic Environmental Assessment of Plans and Programs: A Methodology for Estimating Effects on Biodiversity 总被引:1,自引:0,他引:1
We developed a methodology for biodiversity evaluations within the process of Strategic Environmental Assessment and we applied
it to the estimation of the effect of two Regional Plans of Development on all bird species inhabiting the Castilla y León
region (northwestern Spain). The methodology is based on the evaluation of the effects of main development actions on the
habitat requirements of species. From these evaluations, and from data on the current distribution and population size (number
of individuals) of each species, we estimated the most likely pattern of distribution and population size after the full implementation
of the plans for each species. The impacts of the plans were quantified as the differences between the pre- and postproject
patterns after codifying them to compensate for differences in the quality of the information available among species. Overall,
we conclude that the proposed methodology fulfills the requirements for its use within the SEA process as it allows for the
assessment of cumulative impacts on every species, highlighting the development directions and the habitat types with major
impacts, and ascertaining whether impacts affect species with either low or high conservation and/or economic value. Generalization
of the proposed methodology to other regions or species will require wildlife-habitat models adequate for SEA analyses, so
that we also propose guidelines for the development and validation of these models. 相似文献
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