HydroBASINS lev08 watershed · #2080466110
Bassin de Erlau
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 2 administrative regions : Freyung-Grafenau, Passau
Sub-basin area
213,3km²
Upstream area
213,3km²
Discharge
3,22m³/s
Mean elev.
582m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 138.4 km²64.7% of basin
- 75.6 km²35.3% of basin
8 intersecting protected areas
LSG "Bayerischer Wald"
IUCN VLandscape Protection Area
49.51 km² overlap
Erlau
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.58 km² overlap
Saußbachleite
IUCN IVNature Reserve
0.20 km² overlap
Landscape Protection Area
0.15 km² overlap
Steinbruchgebiet nordwestlich Hauzenberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.14 km² overlap
Landscape Protection Area
0.13 km² overlap
Moore im Bereich Sonnen-Wegscheid mit Abschnitten des Rannatals
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.10 km² overlap
Landscape Protection Area
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 336 distinct species · 44 379 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 Erlau : 31 espèces reliées par 107 interactions GloBI sur 5 types (connectance 14.4%, 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°
7,3°C
Annual rain
1 008mm
Moisture idx (CMI)
0,21
Runoff
470mm/an
PET
790mm
AET
675mm
Mean slope
6,8°
Water table
377cm
Forest
99%
Crops
3%
Urban
7%
Protected
23%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)