000K utf8 1100 $c2015 1500 eng 2050 urn:nbn:de:gbv:8-diss-176563 3000 Corman, Anna-Marie 4000 Flight and foraging patterns of lesser black-backed gulls and northern gannets in the southern North Sea$hChristian-Albrechts-Universität zu Kiel [Corman, Anna-Marie] 4000 Flug- und Nahrungssuchmuster von Heringsmöwen und Basstölpeln in der südlichen Nordsee$hChristian-Albrechts-Universität zu Kiel [Corman, Anna-Marie] 4030 Kiel$nChristian-Albrechts-Universität zu Kiel 4209 The study focuses on the foraging ecology of two common seabird species of the southern North Sea, lesser black-backed gulls and northern gannets. The spatiotemporal patterns were considered in light of offshore wind farms, representing a recent anthropogenic pressure on the birds' foraging and space use. Flight and foraging patterns of both species were recorded by attaching small GPS data loggers on breeding birds at different German North Sea Islands. Their foraging patterns differed among the six studied breeding colonies and between the sexes, and also indicated a large amount of individual specialisation in foraging behaviour. The vertical flight distribution of lesser black-backed gulls showed that birds flew in the critical heights of the rotor swept areas of offshore wind farms to a certain extent, and thus were likely to collide with offshore turbines, expecially during bad weather conditions. Northern gannets, which are rather inflexible flyers with poor flight manoeuvrability compared to the gulls, largely avoided the offshore wind farm areas, and only crossed those areas where turbines were not installed yet. 4950 https://nbn-resolving.org/urn:nbn:de:gbv:8-diss-176563$xR$3Volltext$534 4961 https://macau.uni-kiel.de/receive/diss_mods_00017656 5051 590 5550 Basstölpel 5550 collision risk 5550 Ernährungsökologie 5550 flight heights 5550 Flughöhen 5550 foraging ecology 5550 habitat displacement 5550 Habitatnutzung 5550 habitat utilization 5550 Habitatverdrängung 5550 Heringsmöwen 5550 Kollisionsrisiko 5550 Larus fuscus 5550 Morus bassanus 5550 Nahrungssuchökologie 5550 Nordsee 5550 North Sea 5550 offshore wind farms 5550 Offshore-Windparks 5550 raumzeitliche Muster 5550 seabirds 5550 Seevögel 5550 spatial segregation 5550 spatiotemporal patterns 5550 trophic ecology