Understanding changes in bird populations - the role of bird marking

摘要: Studies of marked birds play a central role in research on avian population dynamics and life histories because they are the main means estimating survival, recruitment dispersal. Integrated Population Monitoring aims to combine such information from ringing with data abundance, productivity environment order develop models that address applied questions. Diagnosing demographic environmental causes declines provides basis for developing management prescriptions recovery. We discuss examples how studies contributing conservation European farmland understanding Afro–Palaearctic migrants. Adaptive harvest North American duck populations demonstrates similar principles apply quarry species. Over next two decades we expect significant advances our seasonal variation rates, density dependence ways ...