HydroBASINS lev08 watershed · #2080103920
Bassin de Bief de Nanchez
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 1 administrative regions : Jura
Sub-basin area
74,9km²
Upstream area
74,9km²
Discharge
1,15m³/s
Mean elev.
928m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 75.1 km²100.0% of basin
14 communes (GADM L5)Available for FRA, RWA
- Grande-Rivière26.57 km²86% commune
- Saint-Pierre12.49 km²75% commune
- Chaux-des-Prés7.81 km²100% commune
- Prénovel6.59 km²80% commune
- La Rixouse5.20 km²42% commune
- Villard-sur-Bienne3.65 km²35% commune
- Les Piards3.33 km²62% commune
- Château-des-Prés3.01 km²35% commune
- Saint-Laurent-en-Grandvaux2.65 km²15% commune
- Saint-Claude2.16 km²3% commune
- Leschères0.85 km²11% commune
- Les Crozets0.34 km²4% commune
- Saint-Maurice-Crillat0.28 km²1% commune
- Étival0.18 km²1% commune
12 intersecting protected areas
Haut-Jura
IUCN VRegional Nature Park
74.80 km² overlap
Grandvaux
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
16.79 km² overlap
Wetland of International Importance (Ramsar Site)
14.71 km² overlap
Vallées et côtes de la Bienne, du Tacon et du Flumen
IUCN Not ReportedSpecial Protection Area (Birds Directive)
10.68 km² overlap
Vallées et côtes de la Bienne, du Tacon et du Flumen
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.68 km² overlap
Combe du Nanchez
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.04 km² overlap
Regional Nature Reserve
0.49 km² overlap
Plateau du Lizon
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.16 km² overlap
Plateau du Lizon
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.15 km² overlap
3 more protected areassorted by overlap area
en praillard
IUCN IVLand acquired by a regional conservatory of natural areas
0.11 km² overlap
sous la roche
IUCN IVLand acquired by a regional conservatory of natural areas
0.06 km² overlap
sous les montees
IUCN IVLand acquired by a regional conservatory of natural areas
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 012 distinct species · 41 809 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Bief de Nanchez : 32 espèces + 5 bulles famille, 82 interactions GloBI documentées sur 3 types (connectance 12.3%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
7,2°C
Annual rain
1 266mm
Moisture idx (CMI)
0,42
Runoff
1 062mm/an
PET
736mm
AET
674mm
Mean slope
5,9°
Water table
218cm
Forest
79%
Crops
1%
Urban
0%
Protected
100%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)