HydroBASINS lev08 watershed · #2080553660
Bassin de la Sourdoire
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 : Corrèze, Lot
Sub-basin area
215,9km²
Upstream area
7 150,8km²
Discharge
174m³/s
Mean elev.
238m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de la Bave296 km²
- Bassin de la Dordogne3 km²
2 dept-equivalent regions (GADM L2)
- 128.4 km²59.3% of basin
- 88.1 km²40.7% of basin
34 communes (GADM L5)Available for FRA, RWA
- Carennac19.34 km²99% commune
- Bétaille14.07 km²100% commune
- Vayrac14.07 km²91% commune
- Queyssac-les-Vignes11.09 km²100% commune
- Le Pescher10.62 km²94% commune
- Sérilhac10.18 km²82% commune
- Végennes10.01 km²100% commune
- Puy-d'Arnac9.53 km²79% commune
- Lagleygeolle8.59 km²43% commune
- Curemonte8.44 km²98% commune
- Branceilles7.91 km²69% commune
- Sioniac7.59 km²72% commune
- Tauriac7.56 km²86% commune
- Lostanges7.04 km²73% commune
- Loubressac6.83 km²29% commune
- Marcillac-la-Croze6.51 km²100% commune
- Gintrac6.50 km²100% commune
- Bilhac6.42 km²91% commune
- Padirac6.28 km²74% commune
- Saint-Julien-Maumont5.70 km²89% commune
- Tudeils5.43 km²58% commune
- La Chapelle-aux-Saints5.13 km²100% commune
- Saint-Bazile-de-Meyssac4.55 km²100% commune
- Meyssac3.39 km²29% commune
- Puybrun3.35 km²82% commune
- Floirac3.23 km²17% commune
- Saint-Michel-de-Bannières2.53 km²33% commune
- Miers2.42 km²10% commune
- Prudhomat1.37 km²11% commune
- Saint-Denis-lès-Martel0.28 km²3% commune
- Beynat0.23 km²1% commune
- Thégra0.23 km²2% commune
- Ménoire0.01 km²0% commune
- Liourdres0.00 km²0% commune
6 intersecting protected areas
Vallée de la Dordogne quercynoise
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
25.08 km² overlap
Causses Du Quercy
IUCN VRegional Nature Park
9.11 km² overlap
Cours Lotois De La Dordogne
IUCN IVBiotope Protection Order
1.28 km² overlap
bassin versant du palsou
IUCN IVLand acquired by a regional conservatory of natural areas
0.08 km² overlap
Falaises lotoises (Rapaces)
IUCN IVBiotope Protection Order
0.01 km² overlap
coteau de cheyssiol
IUCN IVLand acquired by a regional conservatory of natural areas
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 634 distinct species · 110 601 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Sourdoire : 31 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 150 interactions GloBI sur 6 types (connectance 14.5%, filtre Serrano α=0.2). 15 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°
12,2°C
Annual rain
820mm
Moisture idx (CMI)
-0,17
Runoff
552mm/an
PET
985mm
AET
675mm
Mean slope
5,5°
Water table
282cm
Forest
34%
Crops
2%
Urban
0%
Protected
5%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)