Using probability of occurrence to assess potential interaction between wind farms and a residual population of golden eagle Aquila chrysaetos in NW Spain |
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Authors: | Luis Tapia Jesús Domínguez Luis Rodríguez |
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Institution: | (1) Departamento de Zoología y Antropología Física, Facultad de Biología, Universidad de Santiago de Compostela, Campus Sur s/n, 15782 Galicia, Spain;(2) Departamento de Edafología y Química Agrícola, Facultad de Biología, Universidad de Santiago de Compostela, Campus Sur s/n, 15782 Galicia, Spain |
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Abstract: | We evaluate the areas with potential negative impacts in a golden eagle population derived of the development of wind farms.
At present, the entire golden eagle Galician population (5–6 pairs) is located within an area of about 2,000 km2. Grid squares of 10 × 10 km UTM in the province were scored for current and future wind turbine density and probability of
occurrence of golden eagle. This probability was obtained using cartographic models of habitat selection for two different
historic periods. Potential risk index (PRI) was calculated for each grid square by multiplying the wind turbine density score
by the probability of occurrence score. With the PRIs obtained a cartographic model of potential impact of wind farms on the
golden eagle population was constructed. No significant correlation was observed between current wind turbine density and
the probability of occurrence of golden eagle. A significant positive correlation was observed between current and future
wind turbine density and the probability of occurrence of golden eagle. The areas with highest potential risk are eastern
and the central mountains of Ourense where the species breeds. The risk model presented could be applied to future wind farm
proposals and monitor potential interactions of golden eagles with wind farms in the Province of Ourense. |
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Keywords: | Aquila chrysaetos Conservation Golden eagle Potential impacts Wind farms |
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