HydroBASINS lev08 watershed · #2080499650
Bassin de Ruisseau du Breuil
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 : Indre-et-Loire
Sub-basin area
104,6km²
Upstream area
56 341,2km²
Discharge
492,08m³/s
Mean elev.
84m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de la Loire1528 km²
- Bassin du Cher1115 km²
1 dept-equivalent regions (GADM L2)
- 104.9 km²100.0% of basin
12 communes (GADM L5)Available for FRA, RWA
- Mazières-de-Touraine26.47 km²76% commune
- Cinq-Mars-la-Pile14.70 km²73% commune
- Langeais13.80 km²23% commune
- Vallères13.68 km²96% commune
- Druye9.80 km²42% commune
- Villandry8.00 km²43% commune
- Saint-Étienne-de-Chigny5.05 km²24% commune
- Ambillou4.89 km²10% commune
- Lignières-de-Touraine4.19 km²42% commune
- La Chapelle-aux-Naux3.67 km²66% commune
- Azay-le-Rideau0.36 km²1% commune
- Cléré-les-Pins0.26 km²1% commune
8 intersecting protected areas
Loire-Anjou-Touraine
IUCN VRegional Nature Park
43.86 km² overlap
Lac de Rillé et forêts voisines d'Anjou et de Touraine
IUCN Not ReportedSpecial Protection Area (Birds Directive)
19.31 km² overlap
La Loire de Candes Saint Martin à Mosnes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.78 km² overlap
Vallée de la Loire d'Indre-et-Loire
IUCN Not ReportedSpecial Protection Area (Birds Directive)
3.75 km² overlap
Complexe du Changeon et de la Roumer
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.82 km² overlap
ile joli coeur (l\')
IUCN IVLand acquired by a regional conservatory of natural areas
0.27 km² overlap
clos molou (le)
IUCN IVLand acquired by a regional conservatory of natural areas
0.16 km² overlap
ile aux boeufs (l\')
IUCN IVLand acquired by a regional conservatory of natural areas
0.14 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 773 distinct species · 73 485 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Ruisseau du Breuil : 34 espèces + 5 bulles famille, 98 interactions GloBI documentées sur 5 types (connectance 13.2%, filtre Serrano α=0.2). Les 5 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°
11,4°C
Annual rain
682mm
Moisture idx (CMI)
-0,22
Runoff
199mm/an
PET
873mm
AET
573mm
Mean slope
1,3°
Water table
139cm
Forest
23%
Crops
38%
Urban
0%
Protected
42%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)