HydroBASINS lev08 watershed · #2080497590
Bassin de L’Aubance
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 : Maine-et-Loire
Sub-basin area
193,1km²
Upstream area
193,1km²
Discharge
1,33m³/s
Mean elev.
63m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 193.7 km²100.0% of basin
27 communes (GADM L5)Available for FRA, RWA
- Vauchrétien20.15 km²100% commune
- Charcé-Saint-Ellier-sur-Aubance16.89 km²100% commune
- Notre-Dame-d'Allençon13.06 km²96% commune
- Grézillé12.74 km²71% commune
- Soulaines-sur-Aubance12.73 km²100% commune
- Les Alleuds10.98 km²100% commune
- Brissac-Quincé10.09 km²100% commune
- Mozé-sur-Louet9.78 km²38% commune
- Louerre9.32 km²63% commune
- Luigné9.18 km²95% commune
- Faye-d'Anjou9.14 km²30% commune
- Mûrs-Erigné8.60 km²49% commune
- Chemellier8.10 km²71% commune
- Saulgé-l'Hôpital6.65 km²100% commune
- Saint-Saturnin-sur-Loire6.64 km²56% commune
- Chavagnes6.09 km²38% commune
- Saint-Jean-des-Mauvrets5.29 km²39% commune
- Ambillou-Château5.00 km²24% commune
- Noyant-la-Plaine4.61 km²100% commune
- Blaison-Gohier3.78 km²18% commune
- Saint-Melaine-sur-Aubance3.20 km²67% commune
- Brigné1.31 km²9% commune
- Juigné-sur-Loire0.16 km²1% commune
- Louresse-Rochemenier0.09 km²0% commune
- Thouarcé0.05 km²0% commune
- Coutures0.03 km²0% commune
- Martigné-Briand0.02 km²0% commune
5 intersecting protected areas
Loire-Anjou-Touraine
IUCN VRegional Nature Park
45.11 km² overlap
Vallée de la Loire de Nantes aux Ponts-de-Cé et ses annexes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.56 km² overlap
Vallée de la Loire de Nantes aux Ponts-de-Cé et ses annexes
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.56 km² overlap
Cave Des Sablons A Grezille
IUCN IVBiotope Protection Order
0.08 km² overlap
Biotope Protection Order
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 909 distinct species · 54 623 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 L’Aubance : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 108 interactions GloBI sur 6 types (connectance 17.1%, 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
674mm
Moisture idx (CMI)
-0,22
Runoff
218mm/an
PET
866mm
AET
564mm
Mean slope
1,3°
Water table
137cm
Forest
1%
Crops
60%
Urban
2%
Protected
21%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)