Landscape-Scale Effects of Irrigation on a Dry Cereal Farmland Bird Community

摘要: Landscape modification and habitat fragmentation are one of the major current threats to biodiversity. The main source is loss focal area, but changes in composition surrounding landscape also have a direct effect on These may lead some species favour replacement. Farmland birds Europe affected by due farmland intensification, such as spread irrigation, which occur at different spatial scales. As irrigation expected increase coming years, producing affect protected areas, it necessary evaluate its potential consequences over In this study we assess relationship between irrigated land scales dry cereal bird community, abundance richness, using generalized (GLM). We used affinity index describe level community specificity for farmland. tree orchards surface produced an total richness even long distance, while had negative thus replacement specialist generalist species. On contrary, herbaceous within maximum distance 500 m favoured community. Our results show importance landscape-scale effects occurring outside areas inside Nature 2000 sites, well how these detected (2000 m) from disturbance source.