Development of bird population

Set VN link, Property name = Context, Property VN name = Context

Model link = PP Development of bird population

Result = PP Ontpoldering Perkpolder VN

End Set VN link

Set VN link, Property name = Produces, Property VN name = Produces

Model link = PP Development of bird population

Result =

End Set VN link

Set VN link, Property name = Consumes, Property VN name = Consumes

Model link = PP Development of bird population

Result =

End Set VN link

Set VN link, Property name = Part of, Property VN name = Part of

Model link = PP Development of bird population

Result =

End Set VN link

Set VN link, Property name = Instance of, Property VN name = Instance of

Model link = PP Development of bird population

Result =

End Set VN link

Set VN link, Property name = Concerns, Property VN name = Concerns

Model link = PP Development of bird population

Result =

End Set VN link

Birds were counted in March 2016. The following species were observed:

• Common shellduck
• Mallard
• Wigeon
• Eurasian curlew
• Oystercatcher
• Redshank
• Little Egret
• Black-headed gull
• European herring gull
• Great crested grebe
• Great cormorant

Figure 1: Distribution and numbers observed at low tide for Common shellduck (left) and Eurasian curlew (right) in Perkpolder (March 2016) (Boersema et al. 2016).

Waders and the common shellduck typically forage on the tidal flat. Ducks like mallard and wigeon mainly occur in the creeks or resting along the creek banks. Figure 1 shows the distribution for two species, the common shellduck and the Eurasian curlew.

Conclusion

As with the colonization of the benthic macrofauna into the Perkpolder area, also estuarine birds returned. Waders like Eurasian curlew and oystercatcher, and the common shellduck are foraging during low tide in the intertidal zone, while the creeks are used by ducks such as mallard and wigeon. Little egrets look for small fish and crustaceans in the creeks.

Referenties

• Perkpolder tidal restauration, one year after realisation, draft progress report, Boersema, M., J. van der werf, P. de Louw, T. Ysebaert, T. Bouma, Centre of expertise Delta Technology, 27 november 2016.

Zie ook

• Perkpolder tidal restauration, one year after realisation, draft progress report
• The conservation of eroding intertidal flats through nourishments: Ecological development on the Oesterdam tidal flat (Oosterschelde, the Netherlands)
• Exploitation of intertidal flats in the Oosterschelde by estuarine birds
• Oesterdam sand nourishment - ecological and morphological development of a local sand nourishment
• ANT Oosterschelde: Long-term trends of waders and their dependence on intertidal foraging grounds
• Perkpolder Tidal Restauration
• The effect of an experimentally created mussel bed on bird densities and food intake of the oystercatcher Haematopus ostralegus.pdf
• Wadden Sea Plan 2010
• Buitendijkse maatregelen Knuitershoek en Baalhoek Voortgangsrapportage
• Rammegors tidal restauration, final report