HydroBASINS lev08 watershed · #2080410420
Bassin de Hillenbach
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 : Oberbergischer Kreis, Rhein-Sieg-Kreis
Sub-basin area
208,5km²
Upstream area
208,6km²
Discharge
2,1m³/s
Mean elev.
243m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 105.3 km²50.3% of basin
- 104.0 km²49.7% of basin
28 intersecting protected areas
Landscape Protection Area
74.46 km² overlap
Landscape Protection Area
71.05 km² overlap
LSG-Zone 1
IUCN VLandscape Protection Area
10.24 km² overlap
Brölbach
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.24 km² overlap
Nature Reserve
7.62 km² overlap
Landscape Protection Area
5.17 km² overlap
LSG-Wiehl <2.2.1>
IUCN VLandscape Protection Area
0.75 km² overlap
Nature Reserve
0.53 km² overlap
Kesselsiefen u. Galgenberg
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.53 km² overlap
19 more protected areassorted by overlap area
Landscape Protection Area
0.45 km² overlap
NSG Millerscheider Bachtal
IUCN IVNature Reserve
0.36 km² overlap
Nature Reserve
0.29 km² overlap
LSG-Zone 2
IUCN VLandscape Protection Area
0.27 km² overlap
Nature Reserve
0.25 km² overlap
LSG-Siegtal-Haenge
IUCN VLandscape Protection Area
0.24 km² overlap
NSG Waelder auf Kalk
IUCN IVNature Reserve
0.18 km² overlap
Nature Reserve
0.16 km² overlap
NSG Hillenbach-Tal
IUCN IVNature Reserve
0.10 km² overlap
Nature Reserve
0.09 km² overlap
Nature Reserve
0.09 km² overlap
NSG Neuenhaehnen
IUCN IVNature Reserve
0.07 km² overlap
Quellmoor bei Neuenhähnen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.06 km² overlap
Nature Reserve
0.04 km² overlap
NSG Halberger Bachtal
IUCN IVNature Reserve
0.03 km² overlap
NSG Waldbroelbachhoehle
IUCN IVNature Reserve
0.01 km² overlap
Nature Reserve
0.00 km² overlap
Nature Reserve
0.00 km² overlap
Nature Reserve
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 194 distinct species · 33 741 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 Hillenbach : 30 espèces reliées par 96 interactions GloBI sur 6 types (connectance 12.3%, filtre Serrano α=0.2). 10 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°
8,9°C
Annual rain
837mm
Moisture idx (CMI)
0,14
Runoff
317mm/an
PET
720mm
AET
578mm
Mean slope
4,9°
Water table
331cm
Forest
62%
Crops
7%
Urban
15%
Protected
82%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)