HydroBASINS lev08 watershed · #2080551410
Bassin de l'Isle
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 : Dordogne, Gironde
Sub-basin area
1 957,3km²
Upstream area
3 806,9km²
Discharge
64,54m³/s
Mean elev.
136m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de l'Isle927 km²
- Bassin de l'Auvézère922 km²
2 dept-equivalent regions (GADM L2)
- 1790.0 km²91.2% of basin
- 171.7 km²8.8% of basin
153 communes (GADM L5)Available for FRA, RWA
- Montpon-Ménestérol46.97 km²99% commune
- Agonac38.57 km²100% commune
- Château-l'Évêque37.42 km²100% commune
- Saint-Astier35.68 km²100% commune
- Eygurande-et-Gardedeuil34.76 km²97% commune
- Vergt33.75 km²100% commune
- Saint-Barthélemy-de-Bellegarde33.72 km²100% commune
- Saint-Laurent-des-Hommes32.52 km²100% commune
- Saint-Martial-d'Artenset31.54 km²99% commune
- Saint-Michel-de-Double29.80 km²100% commune
- Notre-Dame-de-Sanilhac26.93 km²100% commune
- Lacropte26.92 km²100% commune
- Coursac25.65 km²100% commune
- Neuvic25.45 km²100% commune
- Marsaneix24.63 km²100% commune
- La Douze24.28 km²100% commune
- Saint-Médard-de-Mussidan23.91 km²100% commune
- Sourzac23.38 km²100% commune
- Trélissac23.29 km²96% commune
- Fossemagne22.97 km²100% commune
- Issac22.93 km²100% commune
- Cendrieux21.97 km²71% commune
- Beaupouyet21.63 km²95% commune
- Saint-Aquilin21.47 km²95% commune
- Grignols20.91 km²100% commune
- Coulounieix-Chamiers20.79 km²100% commune
- Montrem20.73 km²100% commune
- Villamblard20.70 km²100% commune
- Montagnac-la-Crempse20.63 km²81% commune
- Manzac-sur-Vern20.29 km²100% commune
- Coutras20.03 km²59% commune
- Rouffignac-Saint-Cernin-de-Reilh19.98 km²33% commune
- Échourgnac19.95 km²57% commune
- Douville19.59 km²99% commune
- Beauronne19.48 km²100% commune
- Atur19.39 km²100% commune
- Saint-Germain-du-Salembre19.26 km²100% commune
- Chantérac18.88 km²98% commune
- Ménesplet18.67 km²100% commune
- Salon18.14 km²100% commune
- Champcevinel17.99 km²100% commune
- Saint-Géry17.77 km²94% commune
- Milhac-d'Auberoche17.75 km²100% commune
- Saint-Geyrac17.39 km²98% commune
- Douzillac17.30 km²100% commune
- Les Lèches17.27 km²80% commune
- Le Pizou17.02 km²100% commune
- La Chapelle-Gonaguet16.95 km²87% commune
- Saint-Front-d'Alemps16.92 km²86% commune
- Chancelade16.67 km²100% commune
- Saint-Pierre-de-Chignac15.57 km²100% commune
- Lussac15.31 km²67% commune
- Chalagnac14.98 km²100% commune
- Saint-Christophe-de-Double14.98 km²41% commune
- Beleymas14.87 km²91% commune
- Razac-sur-l'Isle14.85 km²100% commune
- Saint-Léon-sur-l'Isle14.78 km²100% commune
- Mensignac14.75 km²58% commune
- Servanches14.65 km²70% commune
- Léguillac-de-l'Auche14.53 km²100% commune
- Petit-Palais-et-Cornemps14.37 km²100% commune
- Boulazac14.37 km²100% commune
- Bassillac14.06 km²74% commune
- Saint-Étienne-de-Puycorbier14.02 km²100% commune
- Porchères13.36 km²100% commune
- Sorges13.26 km²27% commune
- Annesse-et-Beaulieu13.12 km²100% commune
- Église-Neuve-d'Issac12.95 km²76% commune
- Saint-Félix-de-Reillac-et-Mortem12.81 km²62% commune
- Saint-Vincent-de-Connezac12.81 km²86% commune
- Négrondes12.76 km²62% commune
- Saint-Jean-d'Estissac12.61 km²100% commune
- Saint-André-de-Double12.54 km²46% commune
- Grun-Bordas12.48 km²100% commune
- Sainte-Marie-de-Chignac12.37 km²100% commune
- Abzac12.32 km²92% commune
- Saint-Jean-d'Ataux11.75 km²100% commune
- Beauregard-et-Bassac11.66 km²98% commune
- Saint-Maime-de-Péreyrol11.36 km²100% commune
- Saint-Martin-de-Gurson11.28 km²44% commune
- Saint-Laurent-sur-Manoire11.00 km²100% commune
- Breuilh10.82 km²100% commune
- Saint-Paul-de-Serre10.81 km²100% commune
- Saint-Médard-de-Guizières10.62 km²100% commune
- Périgueux10.36 km²100% commune
- Marsac-sur-l'Isle10.19 km²100% commune
- Saint-Antoine-sur-l'Isle10.17 km²99% commune
- Bourrou10.16 km²100% commune
- Saint-Crépin-d'Auberoche10.12 km²100% commune
- Minzac9.90 km²61% commune
- Eyliac9.57 km²41% commune
- Vallereuil9.48 km²100% commune
- Eyvirat9.26 km²51% commune
- Bourgnac9.21 km²100% commune
- Moulin-Neuf9.14 km²100% commune
- Saint-Martin-l'Astier9.04 km²100% commune
- Le Fieu8.97 km²62% commune
- Saint-Seurin-sur-l'Isle8.82 km²100% commune
- Cornille8.78 km²68% commune
- Creyssensac-et-Pissot8.75 km²100% commune
- Saint-Front-de-Pradoux8.73 km²100% commune
- Saint-Amand-de-Vergt8.66 km²66% commune
- Villefranche-de-Lonchat8.53 km²57% commune
- Saint-Antoine-d'Auberoche7.84 km²99% commune
- Puynormand7.78 km²100% commune
- Église-Neuve-de-Vergt7.77 km²100% commune
- Gours7.74 km²100% commune
- Jaure7.62 km²100% commune
- Tayac7.27 km²100% commune
- Ligueux6.64 km²100% commune
- Saint-Hilaire-d'Estissac6.56 km²100% commune
- Saint-Michel-de-Villadeix6.41 km²46% commune
- Veyrines-de-Vergt6.18 km²50% commune
- Vaunac5.70 km²39% commune
- Saint-Sauveur-de-Puynormand5.65 km²100% commune
- Saint-Séverin-d'Estissac5.61 km²100% commune
- Puisseguin5.38 km²31% commune
- Saint-Sauveur-Lalande5.18 km²55% commune
- Biras4.46 km²23% commune
- Saint-Sulpice-de-Roumagnac4.15 km²37% commune
- Mussidan3.97 km²100% commune
- Sencenac-Puy-de-Fourches3.93 km²35% commune
- Lempzours3.27 km²29% commune
- Limeyrat2.98 km²15% commune
- Camps-sur-l'Isle2.94 km²100% commune
- Antonne-et-Trigonant2.87 km²14% commune
- Bosset2.65 km²18% commune
- Saint-Louis-en-l'Isle2.60 km²100% commune
- Bars2.23 km²9% commune
- Tocane-Saint-Apre2.15 km²6% commune
- Carsac-de-Gurson2.04 km²29% commune
- Thenon1.70 km²6% commune
- Saint-Cibard1.49 km²43% commune
- Siorac-de-Ribérac1.35 km²6% commune
- Fouleix1.24 km²11% commune
- Francs1.22 km²19% commune
- Blis-et-Born1.06 km²5% commune
- Les Artigues-de-Lussac1.01 km²10% commune
- Saint-Denis-de-Pile0.98 km²4% commune
- Mauzens-et-Miremont0.91 km²4% commune
- Sablons0.90 km²8% commune
- Ajat0.81 km²4% commune
- Eyzerac0.62 km²6% commune
- Journiac0.45 km²2% commune
- Les Peintures0.38 km²3% commune
- La Roche-Chalais0.18 km²0% commune
- Fraisse0.17 km²1% commune
- Saint-Martin-des-Combes0.15 km²1% commune
- Saint-Rémy0.15 km²1% commune
- Segonzac0.05 km²1% commune
- Brantôme0.04 km²0% commune
- Saint-Julien-de-Crempse0.02 km²0% commune
- Saint-Martin-de-Ribérac0.01 km²0% commune
12 intersecting protected areas
Vallée de l'Isle de Périgueux à sa confluence avec la Dordogne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
53.70 km² overlap
Vallées de la Double
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
22.61 km² overlap
lande des gavardies
IUCN IVLand acquired by a regional conservatory of natural areas
0.13 km² overlap
Land acquired by a regional conservatory of natural areas
0.11 km² overlap
Land acquired by a regional conservatory of natural areas
0.04 km² overlap
coteaux de leguillac
IUCN IVLand acquired by a regional conservatory of natural areas
0.04 km² overlap
vallon du leyssart
IUCN IVLand acquired by a regional conservatory of natural areas
0.04 km² overlap
Land acquired by a regional conservatory of natural areas
0.03 km² overlap
Land acquired by a regional conservatory of natural areas
0.02 km² overlap
3 more protected areassorted by overlap area
lande du petit claud
IUCN IVLand acquired by a regional conservatory of natural areas
0.02 km² overlap
vallee du galant
IUCN IVLand acquired by a regional conservatory of natural areas
0.01 km² overlap
vallee du saint-geyrac
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
6 319 distinct species · 416 035 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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'Isle : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 130 interactions GloBI sur 5 types (connectance 16.7%, filtre Serrano α=0.2). 13 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°
12,1°C
Annual rain
892mm
Moisture idx (CMI)
-0,08
Runoff
513mm/an
PET
969mm
AET
682mm
Mean slope
3,4°
Water table
159cm
Forest
50%
Crops
14%
Urban
3%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)