HydroBASINS lev08 watershed · #2080425550
Bassin de Weismain
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 4 administrative regions : Bamberg, Kronach, Kulmbach, Lichtenfels
Sub-basin area
239,5km²
Upstream area
1 430,9km²
Discharge
12,39m³/s
Mean elev.
402m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Weißer Main621 km²
- Bassin de Roter Main571 km²
4 dept-equivalent regions (GADM L2)
- 173.9 km²72.4% of basin
- 53.6 km²22.3% of basin
- 11.5 km²4.8% of basin
- 1.3 km²0.5% of basin
12 intersecting protected areas
Landscape Protection Area
77.82 km² overlap
Felsen und Hangwälder im nördlichen Frankenjura
IUCN Not ReportedSpecial Protection Area (Birds Directive)
21.64 km² overlap
Trockenrasen, Wiesen und Wälder um Weismain
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
19.94 km² overlap
Täler von Oberem Main, Unterer Rodach und Steinach
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.64 km² overlap
Maintal von Theisau bis Lichtenfels
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.59 km² overlap
Schutz von Landschaftsteilen im Gebiet des Landkreises Kulmbach - "Patersberg - Wacholdergrund"
IUCN VLandscape Protection Area
3.01 km² overlap
Albtraufhänge zwischen Görau und Thurnau
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.35 km² overlap
Nature Reserve
0.17 km² overlap
Nature Reserve
0.09 km² overlap
3 more protected areassorted by overlap area
Mainaltwasser bei Mainleus
IUCN IVNature Reserve
0.04 km² overlap
LSG "Unteres Rotmaintal" im Gebiet der Landkreise Bayreuth und Kulmbach sowie der Stadt Bayreuth
IUCN VLandscape Protection Area
0.04 km² overlap
Mainaltwasser bei Theisau
IUCN IVNature Reserve
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 320 distinct species · 55 078 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 27 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 Weismain : 24 espèces reliées par 72 interactions GloBI sur 4 types (connectance 20.5%, 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
670mm
Moisture idx (CMI)
-0,11
Runoff
263mm/an
PET
753mm
AET
550mm
Mean slope
4,9°
Water table
354cm
Forest
34%
Crops
32%
Urban
8%
Protected
34%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)