HydroBASINS lev08 watershed · #2080524350
Bassin de Navizence
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 : Hérens, Leuk, Sierre, Visp
Sub-basin area
252,1km²
Upstream area
252,2km²
Discharge
7,97m³/s
Mean elev.
2 398m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- Sierre246.3 km²97.5% of basin
- 5.3 km²2.1% of basin
- Visp0.9 km²0.4% of basin
- Leuk0.2 km²0.1% of basin
17 intersecting protected areas
Pfynwald - Bois de Finges
IUCN Not AssignedForest Reserves
3.21 km² overlap
Glacier de Zinal
IUCN IVFederal Inventory of Alluvial Zones of National Importance
1.86 km² overlap
Tsougdires Orzival
IUCN Not AssignedPrivate Nature Reserves
1.11 km² overlap
Lac de Lona
IUCN IVFederal Inventory of Fenlands of National Importance
0.89 km² overlap
Turtmanntal
IUCN IVFederal Hunting Reserves
0.36 km² overlap
Plat de la Lé
IUCN IVFederal Inventory of Alluvial Zones of National Importance
0.31 km² overlap
Les Fénis
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
0.28 km² overlap
Biolly
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
0.21 km² overlap
Finges/Pfyn
IUCN Not ReportedEmerald Network
0.10 km² overlap
8 more protected areassorted by overlap area
Finges
IUCN Not AssignedEmerald Sites
0.10 km² overlap
Poyets
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
0.07 km² overlap
Les Pontis
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
0.06 km² overlap
Ponchet
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
0.05 km² overlap
Mayens de Pinsec
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
0.05 km² overlap
Le Poyou
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
0.04 km² overlap
Tignousa
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
0.03 km² overlap
Ayer
IUCN IVFederal Inventory of Dry Grasslands and Pastures of National Importance
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 698 distinct species · 108 992 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 24 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 Navizence : 21 espèces + 3 bulles famille, 33 interactions GloBI documentées sur 4 types (connectance 12.0%, filtre Serrano α=0.2). Les 3 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°
-0,4°C
Annual rain
1 845mm
Moisture idx (CMI)
0,74
Runoff
997mm/an
PET
434mm
AET
431mm
Mean slope
25,9°
Water table
737cm
Forest
37%
Crops
2%
Urban
1%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)