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2007, COWRIE, Potential use of population viability analysis to assess the impact of offshore windfarms on bird populations

2007, COWRIE, Potential use of population viability analysis to assess the impact of offshore windfarms on bird populations

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Birds

Description

Although conventional impact assessments allow estimates of the number of birds that might collide with or be displaced by windfarms, such methods do not allow the overall effect on bird populations to be established. This report determines whether sufficient demographic information is available to carry out population viability analysis: one method of determining the impacts of offshore windfarms on bird
populations.  For most species likely to be affected by offshore windfarms, sufficient demographic data exist to carry out population viability analyses. There is good information on adult survival for all species with the exception of little tern and little gull. Similarly, for all species except little gull, there is good information on productivity. Reasonable data on age-dependent survival and productivity and on the proportion of non-breeders and intercolony movements are available for about half of the species assessed.

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2007, COWRIE, Potential use of population viability analysis to assess the impact of offshore windfarms on bird populations