HydroBASINS lev08 watershed · #2080021980
Bassin · #2080021980
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 : Calvados, Manche
Sub-basin area
10km²
Upstream area
10km²
Discharge
0,23m³/s
Mean elev.
1m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 8.3 km²82.7% of basin
- 0.0 km²0.1% of basin
3 communes (GADM L5)Available for FRA, RWA
7 intersecting protected areas
Marais du Cotentin et du Bessin, Baie des Veys
IUCN Not ReportedWetland of International Importance (Ramsar Site)
10.05 km² overlap
Marais du Cotentin et du Bessin - Baie des Veys
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.68 km² overlap
Basses Vallées du Cotentin et Baie des Veys
IUCN Not ReportedSpecial Protection Area (Birds Directive)
9.68 km² overlap
Marais du Cotentin et du Bessin - Baie des Veys
IUCN Not ReportedMarine Protected Area (OSPAR)
9.52 km² overlap
Regional Nature Park
7.04 km² overlap
Les veys
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)
1.66 km² overlap
La Vire et ses affluents
IUCN IVBiotope Protection Order
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 430 distinct species · 10 012 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 25 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 · #2080021980 : 17 espèces reliées par 47 interactions GloBI sur 2 types (connectance 14.5%, filtre Serrano α=0.2). 9 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°
11,4°C
Annual rain
787mm
Moisture idx (CMI)
0,11
Runoff
720mm/an
PET
701mm
AET
538mm
Mean slope
0,0°
Water table
1cm
Forest
0%
Crops
23%
Urban
0%
Protected
70%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)