HydroBASINS lev08 watershed · #2080533050
Bassin de la Tardoire
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 3 administrative regions : Charente, Dordogne, Haute-Vienne
Sub-basin area
1 458,8km²
Upstream area
1 458,8km²
Discharge
22,44m³/s
Mean elev.
203m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 839.0 km²57.4% of basin
- 358.2 km²24.5% of basin
- 265.0 km²18.1% of basin
118 communes (GADM L5)Available for FRA, RWA
- Montbron44.01 km²100% commune
- Saint-Mathieu41.42 km²100% commune
- Marval39.27 km²100% commune
- Busserolles34.09 km²100% commune
- Chasseneuil-sur-Bonnieure32.61 km²100% commune
- Maisonnais-sur-Tardoire31.75 km²100% commune
- Cussac30.78 km²100% commune
- Cherves-Châtelars30.71 km²100% commune
- Abjat-sur-Bandiat29.82 km²100% commune
- Javerlhac-et-la-Chapelle-Saint-R28.39 km²100% commune
- Chazelles25.97 km²100% commune
- Écuras23.63 km²100% commune
- Augignac23.48 km²100% commune
- Grassac22.97 km²80% commune
- Vitrac-Saint-Vincent22.77 km²100% commune
- Saint-Estèphe22.26 km²100% commune
- Feuillade22.13 km²100% commune
- Saint-Mary21.73 km²98% commune
- Rivières21.54 km²100% commune
- Taponnat-Fleurignac21.50 km²100% commune
- Champniers-et-Reilhac21.15 km²100% commune
- Les Pins21.03 km²100% commune
- Châlus20.97 km²75% commune
- Champagnac-la-Rivière20.37 km²84% commune
- Bussière-Badil20.33 km²100% commune
- Nontron19.84 km²77% commune
- La Chapelle-Montbrandeix19.64 km²98% commune
- Yvrac-et-Malleyrand18.82 km²100% commune
- Piégut-Pluviers18.79 km²100% commune
- Agris18.72 km²100% commune
- Mazerolles17.47 km²100% commune
- Varaignes17.33 km²100% commune
- Teyjat17.26 km²100% commune
- Saint-Projet-Saint-Constant17.12 km²100% commune
- Saint-Martin-le-Pin16.36 km²100% commune
- Montembœuf16.12 km²100% commune
- Roussines16.07 km²100% commune
- Pranzac15.50 km²100% commune
- Saint-Barthélemy-de-Bussière15.23 km²100% commune
- Charras15.17 km²98% commune
- Vouzan15.10 km²92% commune
- Saint-Germain-de-Montbron15.01 km²100% commune
- Saint-Adjutory14.41 km²100% commune
- Marillac-le-Franc14.30 km²100% commune
- Rouzède14.12 km²100% commune
- Saint-Martial-de-Valette13.90 km²85% commune
- Mornac13.65 km²58% commune
- Pensol13.54 km²95% commune
- Brie13.52 km²40% commune
- Aussac-Vadalle13.12 km²74% commune
- Bunzac13.03 km²100% commune
- Rancogne12.65 km²100% commune
- Marthon12.61 km²100% commune
- Genouillac12.21 km²86% commune
- Coulgens12.10 km²100% commune
- Les Salles-Lavauguyon11.95 km²97% commune
- Jauldes11.69 km²46% commune
- Saint-Sornin11.66 km²100% commune
- Le Lindois11.58 km²64% commune
- Saint-Angeau11.52 km²100% commune
- Mainzac11.24 km²100% commune
- Le Bourdeix11.07 km²100% commune
- Oradour-sur-Vayres10.88 km²27% commune
- Lussac10.82 km²94% commune
- La Rochette10.74 km²100% commune
- Lussas-et-Nontronneau10.50 km²44% commune
- Suaux10.45 km²84% commune
- Vouthon10.17 km²100% commune
- Orgedeuil9.96 km²100% commune
- Vilhonneur9.89 km²100% commune
- Souffrignac9.69 km²100% commune
- Saint-Amant-de-Bonnieure9.53 km²87% commune
- Savignac-de-Nontron9.36 km²100% commune
- Chéronnac9.26 km²49% commune
- Saint-Ciers-sur-Bonnieure9.17 km²90% commune
- Soudat8.85 km²100% commune
- Bouëx8.74 km²56% commune
- Eymouthiers8.71 km²100% commune
- Étouars8.35 km²100% commune
- La Rochefoucauld7.29 km²100% commune
- Hautefaye6.95 km²55% commune
- Saint-Bazile6.95 km²86% commune
- Sainte-Colombe6.37 km²100% commune
- Puyréaux5.91 km²75% commune
- Mazières5.59 km²100% commune
- Nanclars5.47 km²100% commune
- Champsac4.64 km²20% commune
- Sauvagnac4.02 km²54% commune
- Rougnac2.12 km²7% commune
- Roumazières-Loubert2.12 km²5% commune
- Beaussac2.12 km²11% commune
- Mouzon2.06 km²19% commune
- Lésignac-Durand1.99 km²10% commune
- Champs-Romain1.86 km²9% commune
- Dournazac1.80 km²5% commune
- Cellefrouin1.76 km²4% commune
- Combiers1.71 km²7% commune
- Suris1.47 km²13% commune
- Mouton1.10 km²12% commune
- Saint-Claud0.92 km²3% commune
- Videix0.83 km²5% commune
- La Tâche0.64 km²9% commune
- Pageas0.61 km²2% commune
- Maine-de-Boixe0.57 km²6% commune
- Valence0.51 km²5% commune
- Vayres0.38 km²1% commune
- Sceau-Saint-Angel0.28 km²2% commune
- Connezac0.27 km²5% commune
- Saint-Saud-Lacoussière0.25 km²0% commune
- Massignac0.20 km²1% commune
- Saint-Front-sur-Nizonne0.17 km²1% commune
- Verneuil0.13 km²2% commune
- Sers0.04 km²0% commune
- Garat0.04 km²0% commune
- Nieuil0.02 km²0% commune
- Saint-Front0.01 km²0% commune
- Saint-Pardoux-la-Rivière0.01 km²0% commune
- Mialet0.00 km²0% commune
13 intersecting protected areas
Périgord-Limousin
IUCN VRegional Nature Park
615.51 km² overlap
Forêts de la Braconne et de Bois Blanc
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
39.47 km² overlap
Vallée de la Tardoire
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
31.49 km² overlap
vallee de la renaudie
IUCN IVLand acquired by a regional conservatory of natural areas
0.77 km² overlap
Vallée De La Renaudie
IUCN IVRegional Nature Reserve
0.75 km² overlap
Regional Nature Reserve
0.09 km² overlap
Land acquired by a regional conservatory of natural areas
0.06 km² overlap
lande de rigoulet
IUCN IVLand acquired by a regional conservatory of natural areas
0.05 km² overlap
Land acquired by a regional conservatory of natural areas
0.03 km² overlap
4 more protected areassorted by overlap area
Grotte de Rancogne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.01 km² overlap
Land acquired by a regional conservatory of natural areas
0.01 km² overlap
Vallée de la Charente en amont d'Angoulême
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.01 km² overlap
prairies du theillaud
IUCN IVLand acquired by a regional conservatory of natural areas
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 097 distinct species · 274 746 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 50 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 Tardoire : 13 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 282 interactions GloBI sur 5 types (connectance 14.4%, filtre Serrano α=0.2). 50 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°
11,5°C
Annual rain
929mm
Moisture idx (CMI)
-0,01
Runoff
476mm/an
PET
933mm
AET
679mm
Mean slope
2,8°
Water table
192cm
Forest
25%
Crops
21%
Urban
0%
Protected
42%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)