HydroBASINS lev08 watershed · #2080024330
Bassin de Eider
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 6 administrative regions : Dithmarschen, Flensburg, Nordfriesland, Rendsburg-Eckernförde, Schleswig-Flensburg +1
Sub-basin area
2 610,3km²
Upstream area
2 610,4km²
Discharge
44,75m³/s
Mean elev.
14m
Administrative coverage
6 dept-equivalent regions (GADM L2)
- 1126.6 km²43.0% of basin
- 914.5 km²34.9% of basin
- 292.5 km²11.2% of basin
- 264.0 km²10.1% of basin
- 23.7 km²0.9% of basin
- Flensburg0.5 km²0.0% of basin
30 intersecting protected areas
Eider-Treene-Sorge-Niederung
IUCN Not ReportedSpecial Protection Area (Birds Directive)
140.41 km² overlap
Landscape Protection Area
60.18 km² overlap
Eider-Sorge Niederung
IUCN VLandscape Protection Area
42.18 km² overlap
Nordergeest
IUCN VLandscape Protection Area
39.39 km² overlap
Moore der Eider-Treene-Sorge-Niederung
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
34.99 km² overlap
Treene Winderatter See bis Friedrichstadt und Bollingstedter Au
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
29.06 km² overlap
Westenseelandschaft
IUCN VLandscape Protection Area
23.65 km² overlap
Hohe Geest um Immenstedt
IUCN VLandscape Protection Area
23.64 km² overlap
Staatsforsten Barlohe
IUCN Not ReportedSpecial Protection Area (Birds Directive)
18.70 km² overlap
21 more protected areassorted by overlap area
Riesewohld
IUCN VLandscape Protection Area
16.06 km² overlap
Obere Treenelandschaft
IUCN IVNature Reserve
15.94 km² overlap
Landscape Protection Area
14.98 km² overlap
Haithabu-Dannewerk
IUCN VLandscape Protection Area
12.80 km² overlap
Wittensee und Flächen angrenzender Niederungen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
12.20 km² overlap
Ramsar-Gebiet S-H Wattenmeer und angrenzende Küstengebiete
IUCN Not ReportedSpecial Protection Area (Birds Directive)
11.84 km² overlap
S-H Wadden sea National Park
IUCN Not ReportedMarine Protected Area (OSPAR)
11.75 km² overlap
Untereider
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
11.70 km² overlap
Haaler Au-Niederung
IUCN Not ReportedSpecial Protection Area (Birds Directive)
9.64 km² overlap
Binnendünen- und Moorlandschaft im Sorgetal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.58 km² overlap
Wald-, Moor- und Heidelandschaft der Fröruper Berge und Umgebung
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.40 km² overlap
Obere Hanerau
IUCN VLandscape Protection Area
8.91 km² overlap
Binnendünen- und Moorlandschaft im Sorgetal
IUCN Not ReportedSpecial Protection Area (Birds Directive)
8.86 km² overlap
Gräben der nördlichen Alten Sorge
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.69 km² overlap
Alte Sorge-Schleife
IUCN IVNature Reserve
7.61 km² overlap
Gehege Osterhamm-Elsdorf
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.46 km² overlap
Wälder der Ostenfelder Geest
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
6.39 km² overlap
Wildes Moor bei Schwabstedt
IUCN IVNature Reserve
6.37 km² overlap
Dellstedter Birkwildmoor
IUCN IVNature Reserve
6.19 km² overlap
Wälder der nördlichen Itzehoer Geest
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.22 km² overlap
Ochsenweg
IUCN VLandscape Protection Area
4.65 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 220 distinct species · 219 612 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 33 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Eider : 19 espèces reliées par 113 interactions GloBI sur 6 types (connectance 21.4%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
8,3°C
Annual rain
825mm
Moisture idx (CMI)
0,24
Runoff
541mm/an
PET
623mm
AET
510mm
Mean slope
0,6°
Water table
56cm
Forest
1%
Crops
33%
Urban
3%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)