HydroBASINS lev08 watershed · #2080410540
Bassin de Wisser Bach
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 : Altenkirchen (Westerwald), Oberbergischer Kreis, Olpe, Siegen-Wittgenstein, Westerwaldkreis
Sub-basin area
220,4km²
Upstream area
987km²
Discharge
10,94m³/s
Mean elev.
309m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Mühlenbach565 km²
- Bassin de Daade202 km²
5 dept-equivalent regions (GADM L2)
- Altenkirchen (Westerwald)177.1 km²80.1% of basin
- 41.1 km²18.6% of basin
- 2.0 km²0.9% of basin
- 0.8 km²0.4% of basin
- Olpe0.2 km²0.1% of basin
30 intersecting protected areas
Wildenburgisches Land
IUCN VLandscape Protection Area
50.14 km² overlap
Landscape Protection Area
40.97 km² overlap
Westerwald
IUCN Not ReportedSpecial Protection Area (Birds Directive)
36.22 km² overlap
LSG-Zone 1
IUCN VLandscape Protection Area
33.06 km² overlap
Landscape Protection Area
23.83 km² overlap
Sieg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.12 km² overlap
Feuchtgebiete und Heiden des Hohen Westerwaldes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.60 km² overlap
Graureiher-Kolonie
IUCN IVNature Reserve
1.33 km² overlap
Landscape Protection Area
1.18 km² overlap
21 more protected areassorted by overlap area
Neunkhausener Plateau
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.97 km² overlap
LSG-Freudenberg
IUCN VLandscape Protection Area
0.68 km² overlap
Lindians Seifen
IUCN IVNature Reserve
0.64 km² overlap
Biggequellgebiet
IUCN IVNature Reserve
0.61 km² overlap
Steinerother Kopf
IUCN VLandscape Protection Area
0.55 km² overlap
Rosenheimer Lay
IUCN IVNature Reserve
0.43 km² overlap
Weidenbruch
IUCN IVNature Reserve
0.31 km² overlap
LSG-Zone 2
IUCN VLandscape Protection Area
0.22 km² overlap
Landscape Protection Area
0.18 km² overlap
Steinbruch Hasselichskopf
IUCN IVNature Reserve
0.14 km² overlap
NSG Zielenbacher Tal
IUCN IVNature Reserve
0.11 km² overlap
Nistertal
IUCN VLandscape Protection Area
0.10 km² overlap
Nature Reserve
0.10 km² overlap
Im Geraum
IUCN IVNature Reserve
0.09 km² overlap
NSG Heiderhardt
IUCN IVNature Reserve
0.08 km² overlap
Im Seifenwald
IUCN IVNature Reserve
0.07 km² overlap
Moorwiese bei Vosswinkel
IUCN IVNature Reserve
0.07 km² overlap
NSG Roemerbachtal
IUCN IVNature Reserve
0.06 km² overlap
NSG Steinbruch Halle
IUCN IVNature Reserve
0.06 km² overlap
NSG Warnsbachtal
IUCN IVNature Reserve
0.03 km² overlap
Nature Reserve
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 958 distinct species · 17 311 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Wisser Bach : 23 espèces reliées par 106 interactions GloBI sur 6 types (connectance 18.9%, 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°
8,4°C
Annual rain
851mm
Moisture idx (CMI)
0,17
Runoff
343mm/an
PET
701mm
AET
567mm
Mean slope
7,0°
Water table
384cm
Forest
81%
Crops
2%
Urban
16%
Protected
69%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)