Efektivita agro-environmentálních opatření pro bahňáky

Švestková, Veronika

Agricultural intensification is one of the key causes of population declines in many ground-nesting bird species worldwide. Shorebirds, as mostly migratory ground-nesting birds which usually seek wet habitats, seem to be particularly affected by intensification and suitable to serve as a model group for studying farmland biodiversity. Among various options to fight their population declines is implementing agri-environmental schemes (AES), subsidies for farmers or agricultural associations usually aiming to help change the land use in favour of biodiversity implementing specific management. However, the effectiveness of AES for shorebirds is scarcely evaluated and often hard to find. Therefore, I am conducting this review to assess where AES exist and how effective AES are for shorebirds. Most AES affecting shorebirds occur in the EU or in the rest of Europe. There is less information on breeding productivity and long-term trends than on numbers of shorebirds recorded on AES. There is a publication bias towards Western European countries such as Great Britain or the Netherlands, where shorebird conservation has a long tradition. Although most studies find some positive effects for nesting shorebirds, it is still unclear whether AES could not work as ecological traps which attract larger numbers of...

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