HydroBASINS lev08 watershed · #2080347680
Bassin de Wümme
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 7 administrative regions : Bremen, Cuxhaven, Harburg, Heidekreis, Osterholz +2
Sub-basin area
2 063km²
Upstream area
2 063,2km²
Discharge
27,18m³/s
Mean elev.
28m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
7 dept-equivalent regions (GADM L2)
- Rotenburg (Wümme)1055.7 km²51.0% of basin
- 433.6 km²20.9% of basin
- 248.5 km²12.0% of basin
- 195.1 km²9.4% of basin
- BremenBremen · Germany95.7 km²4.6% of basin
- 41.3 km²2.0% of basin
- Cuxhaven1.7 km²0.1% of basin
30 intersecting protected areas
Wümmeniederung
IUCN Not ReportedSite of Community Importance (Habitats Directive)
82.00 km² overlap
Hammeniederung
IUCN Not ReportedSpecial Protection Area (Birds Directive)
62.96 km² overlap
Untere Wümmeniederung, untere Hammeniederung mit Teufelsmoor
IUCN Not ReportedSite of Community Importance (Habitats Directive)
41.47 km² overlap
Hammeniederung
IUCN VLandscape Protection Area
33.36 km² overlap
Blockland
IUCN Not ReportedSpecial Protection Area (Birds Directive)
31.25 km² overlap
Lüneburger Heide
IUCN IVNature Reserve
30.13 km² overlap
Lüneburger Heide
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
29.85 km² overlap
Lüneburger Heide
IUCN Not ReportedSpecial Protection Area (Birds Directive)
29.85 km² overlap
Nature Reserve
28.95 km² overlap
21 more protected areassorted by overlap area
Landscape Protection Area
28.86 km² overlap
Hammeniederung
IUCN IVNature Reserve
28.53 km² overlap
Landscape Protection Area
26.25 km² overlap
Obere Wörpe
IUCN VLandscape Protection Area
20.60 km² overlap
Teufelsmoor
IUCN IVNature Reserve
19.29 km² overlap
Ummel/Dickes Holz
IUCN VLandscape Protection Area
18.75 km² overlap
Wümmewiesen bei Fischerhude
IUCN Not ReportedSpecial Protection Area (Birds Directive)
16.88 km² overlap
Worpswede
IUCN VLandscape Protection Area
13.93 km² overlap
Obere Wümmeniederung
IUCN IVNature Reserve
13.25 km² overlap
Giehler Bach
IUCN VLandscape Protection Area
11.92 km² overlap
Teufelsmoor
IUCN VLandscape Protection Area
10.68 km² overlap
Zentrales Blockland
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.34 km² overlap
Landscape Protection Area
8.85 km² overlap
Wiestetal, Glindbusch, Borchelsmoor
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.37 km² overlap
Fischerhuder Wümmeniederung
IUCN IVNature Reserve
7.71 km² overlap
Landscape Protection Area
7.10 km² overlap
Landscape Protection Area
6.93 km² overlap
Borgfelder Wümmewiesen
IUCN IVNature Reserve
6.88 km² overlap
Borgfelder Wümmewiesen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.77 km² overlap
Heimelberg
IUCN VLandscape Protection Area
6.65 km² overlap
Großes und Weißes Moor
IUCN IVNature Reserve
6.53 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 051 distinct species · 231 327 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Wümme : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 92 interactions GloBI sur 6 types (connectance 12.4%, filtre Serrano α=0.2). 8 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°
8,6°C
Annual rain
730mm
Moisture idx (CMI)
0,02
Runoff
415mm/an
PET
713mm
AET
546mm
Mean slope
0,6°
Water table
42cm
Forest
9%
Crops
33%
Urban
7%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)