HydroBASINS lev08 watershed · #2080501320
Bassin du Thouet
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 4 administrative regions : Deux-Sèvres, Indre-et-Loire, Maine-et-Loire, Vienne
Sub-basin area
3 363,9km²
Upstream area
3 363,9km²
Discharge
30,35m³/s
Mean elev.
117m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 2190.8 km²65.0% of basin
- 742.2 km²22.0% of basin
- 439.0 km²13.0% of basin
- 0.9 km²0.0% of basin
203 communes (GADM L5)Available for FRA, RWA
- Bressuire182.47 km²100% commune
- Nueil-les-Aubiers100.63 km²100% commune
- Saint-Jean-de-Sauves56.35 km²100% commune
- Assais-les-Jumeaux53.35 km²100% commune
- Gourgé51.42 km²100% commune
- Mauzé-Thouarsais49.83 km²100% commune
- Montreuil-Bellay49.67 km²100% commune
- Airvault49.49 km²100% commune
- Chiché47.36 km²100% commune
- La Peyratte47.19 km²100% commune
- Thénezay47.17 km²98% commune
- Mauléon46.87 km²38% commune
- Saint-Aubin-le-Cloud41.59 km²100% commune
- Moncontour41.51 km²100% commune
- Amailloux37.46 km²100% commune
- Moutiers-sous-Argenton37.27 km²100% commune
- Oiron36.86 km²100% commune
- Les Trois-Moutiers35.77 km²100% commune
- Saint-Varent35.38 km²100% commune
- Boismé35.31 km²100% commune
- Somloire31.69 km²98% commune
- Mouterre-Silly31.24 km²100% commune
- Secondigny31.13 km²83% commune
- Saint-Léger-de-Montbrun30.59 km²100% commune
- Bournand29.97 km²90% commune
- Saint-Pardoux29.46 km²85% commune
- Loudun29.32 km²67% commune
- Argenton-les-Vallées28.72 km²100% commune
- Verrue28.70 km²100% commune
- Épieds28.04 km²100% commune
- Clessé27.39 km²93% commune
- Bouillé-Loretz26.50 km²100% commune
- Argenton-l'Église26.33 km²100% commune
- Chouppes25.71 km²79% commune
- Saint-Martin-de-Sanzay24.27 km²100% commune
- Vaudelnay23.41 km²91% commune
- Angliers23.39 km²100% commune
- Faye-l'Abbesse23.20 km²100% commune
- Saint-Jouin-de-Marnes22.88 km²100% commune
- Cersay22.85 km²61% commune
- Saint-Loup-Lamairé22.46 km²100% commune
- Craon22.15 km²100% commune
- Saix21.43 km²92% commune
- Massais21.27 km²100% commune
- Luzay21.14 km²100% commune
- Taizé20.94 km²100% commune
- Glénay20.93 km²100% commune
- Étusson20.93 km²100% commune
- Saint-Généroux20.83 km²100% commune
- Azay-sur-Thouet20.63 km²100% commune
- Boussais20.55 km²100% commune
- Bouillé-Saint-Paul20.28 km²100% commune
- Louin20.16 km²100% commune
- Cherves19.84 km²76% commune
- Brézé19.75 km²100% commune
- La Grimaudière19.59 km²100% commune
- Cizay-la-Madeleine19.48 km²100% commune
- La Chapelle-Bertrand19.38 km²98% commune
- Martaizé19.35 km²100% commune
- Geay19.13 km²100% commune
- Le Tallud19.11 km²100% commune
- Louzy18.84 km²100% commune
- Le Pin18.70 km²100% commune
- Maisontiers18.60 km²100% commune
- Antoigné18.42 km²100% commune
- Roiffé17.97 km²76% commune
- Voultegon17.94 km²100% commune
- Yzernay17.77 km²43% commune
- Saumur17.63 km²26% commune
- Allonne17.41 km²73% commune
- Marnes17.22 km²100% commune
- Berrie16.96 km²100% commune
- La Chapelle-Gaudin16.95 km²100% commune
- La Plaine16.83 km²76% commune
- Coulonges-Thouarsais16.75 km²100% commune
- Châtillon-sur-Thouet16.55 km²100% commune
- Cuhon16.47 km²100% commune
- Curçay-sur-Dive16.42 km²100% commune
- Cirières16.41 km²94% commune
- Le Puy-Notre-Dame15.89 km²100% commune
- Pierrefitte15.69 km²100% commune
- Viennay15.47 km²100% commune
- Distré15.03 km²100% commune
- Saint-Germain-de-Longue-Chaume14.70 km²100% commune
- Tessonnière14.58 km²100% commune
- Le Breuil-sous-Argenton14.48 km²73% commune
- Chanteloup14.40 km²68% commune
- Saint-Clémentin14.27 km²100% commune
- Lageon14.22 km²100% commune
- Luché-Thouarsais14.20 km²100% commune
- Arçay14.11 km²100% commune
- Chalais13.99 km²94% commune
- Beaulieu-sous-Parthenay13.98 km²51% commune
- Massognes13.95 km²100% commune
- Le Coudray-Macouard13.89 km²100% commune
- Saires13.85 km²98% commune
- Guesnes13.64 km²100% commune
- Saint-Aubin-du-Plain13.63 km²100% commune
- La Chaussée13.61 km²100% commune
- La Roche-Rigault13.58 km²52% commune
- Mazeuil13.42 km²100% commune
- Fénery12.97 km²100% commune
- Verrie12.97 km²76% commune
- Irais12.95 km²100% commune
- Sainte-Verge12.94 km²100% commune
- Adilly12.94 km²100% commune
- Pompaire12.80 km²100% commune
- La Chapelle-Saint-Laurent12.71 km²45% commune
- Aubigny12.70 km²100% commune
- Missé12.64 km²100% commune
- Saint-Maurice-la-Fougereuse12.56 km²35% commune
- Brie12.48 km²100% commune
- Saint-Martin-de-Mâcon12.44 km²100% commune
- Bretignolles12.43 km²100% commune
- Combrand12.32 km²49% commune
- Saint-Macaire-du-Bois12.10 km²90% commune
- Pougne-Hérisson12.01 km²100% commune
- Rou-Marson11.97 km²95% commune
- Les Cerqueux11.95 km²86% commune
- Saint-Laon11.91 km²100% commune
- Thouars11.91 km²100% commune
- Pressigny11.63 km²100% commune
- Parthenay11.29 km²100% commune
- Monts-sur-Guesnes11.01 km²100% commune
- Availles-Thouarsais11.00 km²100% commune
- Saint-Clair10.81 km²100% commune
- Pas-de-Jeu10.73 km²100% commune
- Amberre10.66 km²69% commune
- Saurais10.63 km²91% commune
- Saint-Léger-de-Montbrillais10.45 km²100% commune
- Coussay10.32 km²51% commune
- Doux10.09 km²100% commune
- Ternay9.87 km²100% commune
- Glénouze9.78 km²100% commune
- Vouhé9.78 km²70% commune
- Doué-la-Fontaine9.52 km²26% commune
- Lhoumois9.39 km²100% commune
- Maisonneuve9.23 km²100% commune
- Meigné9.15 km²67% commune
- Saint-Cyr-en-Bourg8.88 km²100% commune
- Vouzailles8.78 km²55% commune
- Saint-Cyr-la-Lande8.74 km²100% commune
- Sainte-Gemme8.66 km²100% commune
- La Coudre8.59 km²100% commune
- Les Ulmes8.57 km²100% commune
- Brion-près-Thouet8.43 km²100% commune
- Aulnay8.20 km²100% commune
- Morton8.20 km²100% commune
- Sainte-Radegonde7.64 km²100% commune
- Tourtenay7.49 km²100% commune
- Saint-Just-sur-Dive7.29 km²100% commune
- La Ferrière-en-Parthenay6.90 km²23% commune
- Oroux6.71 km²100% commune
- Courchamps6.70 km²100% commune
- Chacé6.62 km²100% commune
- Neuvy-Bouin6.58 km²25% commune
- Dercé6.54 km²51% commune
- Artannes-sur-Thouet6.36 km²100% commune
- Ranton5.99 km²100% commune
- Chanteloup-les-Bois5.55 km²20% commune
- Souzay-Champigny5.43 km²59% commune
- Saint-Jacques-de-Thouars5.36 km²100% commune
- Soutiers5.34 km²100% commune
- Pouançay5.29 km²100% commune
- Le Chillou4.78 km²100% commune
- Saint-Jean-de-Thouars4.70 km²100% commune
- Brossay4.68 km²100% commune
- Mazières-en-Gâtine4.53 km²23% commune
- Montfort4.27 km²100% commune
- Mirebeau4.13 km²30% commune
- Raslay3.88 km²100% commune
- Maulay3.77 km²17% commune
- Nueil-sur-Layon3.67 km²7% commune
- Varrains3.25 km²100% commune
- Forges3.16 km²35% commune
- Ulcot2.93 km²44% commune
- Basses2.75 km²27% commune
- Champigny-le-Sec2.68 km²11% commune
- Les Verchers-sur-Layon2.46 km²8% commune
- Saint-Paul-du-Bois2.25 km²8% commune
- Chalandray2.19 km²9% commune
- Fontevraud-l'Abbaye1.95 km²13% commune
- Prinçay1.33 km²8% commune
- Turquant1.27 km²16% commune
- Parnay1.15 km²17% commune
- Berthegon1.04 km²10% commune
- Le Retail1.00 km²7% commune
- Lerné0.89 km²5% commune
- Saint-Martin-du-Fouilloux0.75 km²3% commune
- La Forêt-sur-Sèvre0.69 km²1% commune
- Cerizay0.52 km²3% commune
- Vernoux-en-Gâtine0.47 km²1% commune
- Vézières0.45 km²2% commune
- Verruyes0.43 km²2% commune
- Varennes0.32 km²2% commune
- Dénezé-sous-Doué0.31 km²1% commune
- Le Beugnon0.21 km²1% commune
- Courlay0.20 km²1% commune
- Savigny-sous-Faye0.17 km²1% commune
- Doussay0.14 km²1% commune
- Saint-Pierre-des-Échaubrognes0.13 km²0% commune
- Vihiers0.03 km²0% commune
- Pugny0.02 km²0% commune
30 intersecting protected areas
Loire-Anjou-Touraine
IUCN VRegional Nature Park
326.50 km² overlap
Plaines du Mirebalais et du Neuvillois
IUCN Not ReportedSpecial Protection Area (Birds Directive)
277.76 km² overlap
Plaine d'Oiron-Thénezay
IUCN Not ReportedSpecial Protection Area (Birds Directive)
156.24 km² overlap
Bassin du Thouet amont
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
68.36 km² overlap
Vallée de la Loire des Ponts-de-Cé à Montsoreau
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
20.59 km² overlap
Champagne de Méron
IUCN Not ReportedSpecial Protection Area (Birds Directive)
13.34 km² overlap
Vallée de l'Argenton
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.38 km² overlap
Retenue Du Cébron
IUCN IVBiotope Protection Order
2.49 km² overlap
Champagne de Méron
IUCN IVRegional Nature Reserve
1.46 km² overlap
21 more protected areassorted by overlap area
vallee seche de bourdigal
IUCN IVLand acquired by a regional conservatory of natural areas
0.47 km² overlap
blancheres de viennay
IUCN IVLand acquired by a regional conservatory of natural areas
0.39 km² overlap
vallee du gateau
IUCN IVLand acquired by a regional conservatory of natural areas
0.31 km² overlap
Marais De Distré
IUCN IVBiotope Protection Order
0.25 km² overlap
plaine des champs malins
IUCN IVLand acquired by a regional conservatory of natural areas
0.19 km² overlap
landes de l\'hopiteau
IUCN IVLand acquired by a regional conservatory of natural areas
0.18 km² overlap
Land acquired by a regional conservatory of natural areas
0.16 km² overlap
Ancienne carrière AFPA
IUCN IVGeotope Protection Order
0.15 km² overlap
Ancienne carrière AFPA
IUCN Not ReportedGeotope Protection Order
0.15 km² overlap
plaine de la grimaudiere
IUCN IVLand acquired by a regional conservatory of natural areas
0.11 km² overlap
carriere de sous les monts
IUCN IVLand acquired by a regional conservatory of natural areas
0.10 km² overlap
Ancienne carrière du Clos-Melon
IUCN Not ReportedGeotope Protection Order
0.04 km² overlap
Geotope Protection Order
0.04 km² overlap
falunieres de moulin-pochas
IUCN IVLand acquired by a regional conservatory of natural areas
0.03 km² overlap
coteau de mazeuil
IUCN IVLand acquired by a regional conservatory of natural areas
0.03 km² overlap
Biotope Protection Order
0.02 km² overlap
grifferus
IUCN IVLand acquired by a regional conservatory of natural areas
0.01 km² overlap
Biotope Protection Order
0.01 km² overlap
Toarcien
IUCN IIINational Nature Reserve
0.01 km² overlap
Biotope Protection Order
0.00 km² overlap
La cave Billard (Puy Notre Dame)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 388 distinct species · 469 405 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 du Thouet : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 86 interactions GloBI sur 5 types (connectance 11.6%, filtre Serrano α=0.2). 11 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°
11,3°C
Annual rain
731mm
Moisture idx (CMI)
-0,15
Runoff
287mm/an
PET
863mm
AET
584mm
Mean slope
1,3°
Water table
112cm
Forest
2%
Crops
58%
Urban
2%
Protected
8%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)