HydroBASINS lev08 watershed · #2080429520
Bassin de Nièvre
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 : Somme
Sub-basin area
265,2km²
Upstream area
265,3km²
Discharge
4,52m³/s
Mean elev.
110m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 266.1 km²100.0% of basin
48 communes (GADM L5)Available for FRA, RWA
- Talmas18.11 km²94% commune
- Domart-en-Ponthieu17.37 km²96% commune
- Naours16.43 km²100% commune
- Vignacourt16.15 km²56% commune
- Bernaville10.87 km²62% commune
- Canaples10.18 km²100% commune
- Fieffes-Montrelet9.87 km²100% commune
- Bonneville9.79 km²100% commune
- Pernois9.11 km²100% commune
- Ville-le-Marclet9.08 km²100% commune
- Villers-Bocage9.08 km²61% commune
- Candas8.99 km²52% commune
- Fienvillers7.88 km²66% commune
- Flesselles7.78 km²37% commune
- Bettencourt-Saint-Ouen7.55 km²96% commune
- Flixecourt7.47 km²65% commune
- Saint-Léger-lès-Domart6.77 km²100% commune
- Halloy-lès-Pernois6.08 km²100% commune
- Beaumetz5.94 km²96% commune
- Lanches-Saint-Hilaire5.87 km²100% commune
- Ribeaucourt5.85 km²100% commune
- Franqueville5.83 km²98% commune
- Berneuil5.58 km²100% commune
- Rubempré5.28 km²51% commune
- Fransu5.12 km²88% commune
- Berteaucourt-les-Dames4.79 km²100% commune
- Gorges4.75 km²100% commune
- Havernas4.51 km²100% commune
- La Vicogne4.49 km²99% commune
- Saint-Ouen4.44 km²100% commune
- Wargnies2.75 km²100% commune
- Beauval1.82 km²8% commune
- Prouville1.76 km²20% commune
- Domesmont1.67 km²100% commune
- Beauquesne1.48 km²7% commune
- Épécamps1.28 km²100% commune
- Gorenflos1.00 km²16% commune
- Mouflers0.87 km²22% commune
- Domléger-Longvillers0.68 km²8% commune
- Surcamps0.54 km²19% commune
- Belloy-sur-Somme0.44 km²3% commune
- Vauchelles-lès-Domart0.27 km²7% commune
- Heuzecourt0.20 km²3% commune
- Montonvillers0.12 km²9% commune
- Brucamps0.09 km²1% commune
- L'Étoile0.07 km²1% commune
- Autheux0.05 km²1% commune
- Molliens-au-Bois0.00 km²0% commune
4 intersecting protected areas
Réseau de coteaux calcaires du Ponthieu oriental
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.54 km² overlap
Wetland of International Importance (Ramsar Site)
0.28 km² overlap
la vallee du chene
IUCN IVLand acquired by a regional conservatory of natural areas
0.03 km² overlap
Regional Nature Park
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 170 distinct species · 81 252 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 Nièvre : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 126 interactions GloBI sur 6 types (connectance 16.2%, filtre Serrano α=0.2). 13 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°
10,0°C
Annual rain
667mm
Moisture idx (CMI)
-0,08
Runoff
515mm/an
PET
727mm
AET
525mm
Mean slope
2,1°
Water table
126cm
Forest
0%
Crops
71%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)