Realm: Freshwater
Climate: Temperate
Biome: Small river ecosystems
Central latitude: 51.300151
Central longitude: 4.285094
Duration: 27 years, from 1991 to 2017
5574 records
40 distinct species
Across the time series
Tadorna tadorna is the most frequently occurring species
Methods
Since 1991 waterbirds are counted in the lower Seascheldt Estuary (= tidal part of the Flemish upstream part of the Scheldt Estuary, with the downstream section of the estuary lying in The Netherlands) on mid monthly base from a boat during low water tides. All birds are counted present on the tidal flats and in the water line. The study area is completely counted on a single day (low tide). Gulls are only counted since 1999 (all other species since 1991). Dataset is complete.
Citation(s)