HydroBASINS lev08 watershed · #2080430910
Bassin de Modau
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 5 administrative regions : Bergstraße, Darmstadt, Darmstadt-Dieburg, Groß-Gerau, Offenbach
Sub-basin area
539,1km²
Upstream area
539,1km²
Discharge
4,45m³/s
Mean elev.
147m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
5 dept-equivalent regions (GADM L2)
- 238.7 km²44.1% of basin
- 158.3 km²29.3% of basin
- 120.0 km²22.2% of basin
- 23.7 km²4.4% of basin
- 0.2 km²0.0% of basin
30 intersecting protected areas
Stadt Darmstadt
IUCN VLandscape Protection Area
68.36 km² overlap
Hessische Altneckarschlingen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
21.01 km² overlap
Landscape Protection Area
19.24 km² overlap
Mönchbruch und Wälder bei Mörfelden-Walldorf und Groß-Gerau
IUCN Not ReportedSpecial Protection Area (Birds Directive)
19.16 km² overlap
Kranichsteiner Wald mit Hegbachaue,Mörsbacher Grund u. Silzwiesen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
16.98 km² overlap
Wald bei Groß-Gerau
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
16.51 km² overlap
Forehahi
IUCN VLandscape Protection Area
8.43 km² overlap
Kniebrecht,Melibocus u.Orbishöhe b.Seeheim-Jugenh.,Alsb.u.Zwing.
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.76 km² overlap
Jägersburger / Gernsheimer Wald
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6.74 km² overlap
21 more protected areassorted by overlap area
Jägersburger und Gernsheimer Wald
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.92 km² overlap
Hessisches Ried mit Kühkopf-Knoblochsaue
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.56 km² overlap
Streuobst-Trockenwiesen bei Nauheim und Königstädten
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.62 km² overlap
Prinzenberg bei Darmstadt-Eberstadt
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.46 km² overlap
Dommersberg, Dachsberg und Darmbachaue von Darmstadt
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.18 km² overlap
Griesheimer Sand
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.13 km² overlap
Nature Reserve
1.66 km² overlap
Nature Reserve
1.49 km² overlap
Wald und Magerrasen bei Roßdorf
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.49 km² overlap
Buchenwälder des vorderen Odenwaldes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.28 km² overlap
Landscape Protection Area
1.15 km² overlap
Pfungstädter Moor
IUCN IVNature Reserve
1.01 km² overlap
Weißer Berg bei Darmstadt und Pfungstadt
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.93 km² overlap
Nature Reserve
0.89 km² overlap
Nature Reserve
0.84 km² overlap
Beckertanne von Darmstadt mit angrenzender Fläche
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.75 km² overlap
Nature Reserve
0.70 km² overlap
Nature Reserve
0.70 km² overlap
Nature Reserve
0.70 km² overlap
Ehemaliger August-Euler-Flugplatz von Darmstadt
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.70 km² overlap
Nature Reserve
0.68 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 468 distinct species · 369 039 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Modau : 29 espèces reliées par 97 interactions GloBI sur 6 types (connectance 12.4%, filtre Serrano α=0.2). 11 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°
9,6°C
Annual rain
643mm
Moisture idx (CMI)
-0,20
Runoff
260mm/an
PET
808mm
AET
538mm
Mean slope
2,0°
Water table
140cm
Forest
30%
Crops
19%
Urban
47%
Protected
20%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)