HydroBASINS lev08 watershed · #2080485400
Bassin de la Vègre
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 : Mayenne, Sarthe
Sub-basin area
411,2km²
Upstream area
411,2km²
Discharge
3,03m³/s
Mean elev.
121m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 401.7 km²97.4% of basin
- Mayenne10.7 km²2.6% of basin
43 communes (GADM L5)Available for FRA, RWA
- Tennie32.93 km²100% commune
- Rouez31.96 km²96% commune
- Rouessé-Vassé30.82 km²96% commune
- Joué-en-Charnie23.62 km²100% commune
- Saint-Symphorien23.05 km²100% commune
- Loué15.80 km²99% commune
- Brûlon15.70 km²97% commune
- Ruillé-en-Champagne15.22 km²100% commune
- Neuvillette-en-Charnie14.58 km²100% commune
- Parennes14.25 km²100% commune
- Épineu-le-Chevreuil14.12 km²96% commune
- Chevillé13.37 km²94% commune
- Poillé-sur-Vègre12.67 km²73% commune
- Chemiré-en-Charnie11.29 km²100% commune
- Torcé-Viviers-en-CharnieMayenne10.50 km²21% commune
- Conlie10.28 km²59% commune
- Neuvy-en-Champagne10.16 km²67% commune
- Bernay-en-Champagne9.88 km²97% commune
- Saint-Denis-d'Orques9.83 km²21% commune
- Saint-Rémy-de-Sillé9.67 km²87% commune
- Fontenay-sur-Vègre8.68 km²75% commune
- Sillé-le-Guillaume8.67 km²66% commune
- Asnières-sur-Vègre8.42 km²68% commune
- Avessé8.31 km²43% commune
- Mareil-en-Champagne7.87 km²100% commune
- Chassillé7.20 km²99% commune
- Saint-Ouen-en-Champagne5.95 km²53% commune
- Le Grez5.45 km²78% commune
- Crissé5.19 km²25% commune
- Saint-Christophe-en-Champagne4.54 km²60% commune
- Avoise4.41 km²18% commune
- Cures3.57 km²31% commune
- Juigné-sur-Sarthe1.45 km²7% commune
- Amné0.74 km²5% commune
- Longnes0.71 km²11% commune
- Tassillé0.65 km²10% commune
- Vallon-sur-Gée0.37 km²2% commune
- VimarcéMayenne0.18 km²1% commune
- Auvers-le-Hamon0.12 km²0% commune
- Domfront-en-Champagne0.10 km²0% commune
- Chantenay-Villedieu0.07 km²0% commune
- VoutréMayenne0.05 km²0% commune
- Neuvillalais0.00 km²0% commune
4 intersecting protected areas
Special Areas of Conservation (Habitats Directive)
135.08 km² overlap
Normandie-Maine
IUCN VRegional Nature Park
59.24 km² overlap
Bocage de Montsûrs à la forêt de Sillé-le-Guillaume
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.39 km² overlap
Forêt de Sillé
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.18 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 361 distinct species · 93 018 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 de la Vègre : 21 espèces reliées par 66 interactions GloBI sur 4 types (connectance 22.0%, filtre Serrano α=0.2). 4 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°
10,6°C
Annual rain
740mm
Moisture idx (CMI)
-0,12
Runoff
250mm/an
PET
838mm
AET
577mm
Mean slope
2,1°
Water table
177cm
Forest
1%
Crops
54%
Urban
0%
Protected
14%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)