HydroBASINS lev08 watershed · #2080457270
Bassin de Donau
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 : Cham, Kelheim, Regensburg, Regensburg (Kreisfreie Stadt), Straubing-Bogen
Sub-basin area
759,9km²
Upstream area
36 030km²
Discharge
469,52m³/s
Mean elev.
416m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Regen2878 km²
- Bassin de Donau39 km²
5 dept-equivalent regions (GADM L2)
- 507.8 km²66.6% of basin
- 117.0 km²15.3% of basin
- 65.3 km²8.6% of basin
- 52.7 km²6.9% of basin
- 19.6 km²2.6% of basin
28 intersecting protected areas
Landscape Protection Area
222.87 km² overlap
LSG "Bayerischer Wald"
IUCN VLandscape Protection Area
82.02 km² overlap
Oberer Bayerischer Wald
IUCN VLandscape Protection Area
58.66 km² overlap
Donau zwischen Regensburg und Straubing
IUCN Not ReportedSpecial Protection Area (Birds Directive)
27.87 km² overlap
Donau und Altwässer zwischen Regensburg und Straubing
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
18.06 km² overlap
Bachtäler im Falkensteiner Vorwald
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
13.83 km² overlap
Wälder im Donautal
IUCN Not ReportedSpecial Protection Area (Birds Directive)
7.76 km² overlap
Wälder im Donautal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.71 km² overlap
Standortübungsplatz Oberhinkofen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.30 km² overlap
19 more protected areassorted by overlap area
Trockenhänge am Donaurandbruch
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.96 km² overlap
Pfatterer Au
IUCN IVNature Reserve
3.46 km² overlap
Gmünder Au
IUCN IVNature Reserve
1.82 km² overlap
Trockenhänge bei Regensburg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.09 km² overlap
Donauauen bei Stadldorf
IUCN IVNature Reserve
0.90 km² overlap
Brandmoos und Hauerin
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.86 km² overlap
Nature Reserve
0.77 km² overlap
Stöcklwörth
IUCN IVNature Reserve
0.69 km² overlap
Weiher bei Wiesenfelden
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.52 km² overlap
Bachmuschelbäche südlich Thalmassing
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.47 km² overlap
Am Keilstein
IUCN IVNature Reserve
0.47 km² overlap
Brandlberg
IUCN IVNature Reserve
0.41 km² overlap
Brandmoos
IUCN IVNature Reserve
0.26 km² overlap
Nature Reserve
0.24 km² overlap
Hölle
IUCN IVNature Reserve
0.18 km² overlap
Öberauer Donauschleife
IUCN IVNature Reserve
0.11 km² overlap
Vermoorung südwestlich Falkenstein
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.10 km² overlap
Chamb, Regentalaue und Regen zwischen Roding und Donaumündung
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.04 km² overlap
Mausohrkolonien im Naturraum Oberpfälzisch-Bayerischer Wald
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 739 distinct species · 356 262 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Donau : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 73 interactions GloBI sur 5 types (connectance 19.3%, filtre Serrano α=0.2). 3 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°
7,9°C
Annual rain
726mm
Moisture idx (CMI)
-0,06
Runoff
318mm/an
PET
770mm
AET
587mm
Mean slope
3,3°
Water table
179cm
Forest
40%
Crops
49%
Urban
10%
Protected
48%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)