HydroBASINS lev08 watershed · #2080561560
Bassin du Lot
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 : Lot
Sub-basin area
698,7km²
Upstream area
9 426,7km²
Discharge
131,73m³/s
Mean elev.
250m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Célé1334 km²
- Bassin du Lot1119 km²
68 communes (GADM L5)Available for FRA, RWA
- Cahors65.41 km²100% commune
- Arcambal23.39 km²100% commune
- Lalbenque22.59 km²43% commune
- Le Montat22.48 km²99% commune
- Trespoux-Rassiels20.59 km²100% commune
- Saint-Vincent-Rive-d'Olt19.69 km²100% commune
- Cremps19.68 km²100% commune
- Luzech19.24 km²86% commune
- Concots18.48 km²71% commune
- Cieurac18.26 km²97% commune
- Esclauzels18.07 km²100% commune
- Cabrerets17.99 km²41% commune
- Vers17.91 km²100% commune
- Cours16.59 km²100% commune
- Pradines16.17 km²100% commune
- Aujols16.12 km²100% commune
- Labastide-Marnhac16.07 km²56% commune
- Saint-Géry13.96 km²100% commune
- Albas13.51 km²63% commune
- Valroufié13.45 km²100% commune
- Francoulès13.44 km²97% commune
- Maxou12.60 km²100% commune
- Laburgade12.56 km²100% commune
- Escamps12.29 km²99% commune
- Flaujac-Poujols12.01 km²100% commune
- Boissières10.60 km²81% commune
- Crayssac10.57 km²67% commune
- Lamagdelaine10.46 km²100% commune
- Labastide-Murat10.42 km²38% commune
- Cras10.38 km²100% commune
- Villesèque10.17 km²43% commune
- Saint-Martin-de-Vers10.14 km²100% commune
- Vaylats9.27 km²36% commune
- Douelle8.95 km²100% commune
- Saint-Pierre-Lafeuille8.65 km²100% commune
- Lamothe-Cassel8.48 km²73% commune
- Saint-Cernin8.22 km²50% commune
- Mercuès7.53 km²100% commune
- Caillac7.48 km²100% commune
- Calamane7.29 km²100% commune
- Laroque-des-Arcs7.28 km²100% commune
- Cambayrac7.24 km²100% commune
- Nadillac7.17 km²100% commune
- Saint-Cirq-Lapopie7.12 km²38% commune
- Berganty6.89 km²100% commune
- Bouziès6.38 km²83% commune
- Saint-Sauveur-la-Vallée6.27 km²100% commune
- Lauzès6.03 km²91% commune
- Espère5.93 km²100% commune
- Parnac5.81 km²100% commune
- Soulomès4.97 km²66% commune
- Nuzéjouls4.59 km²96% commune
- Sauzet3.87 km²33% commune
- Lhospitalet3.51 km²23% commune
- Bach1.85 km²9% commune
- Ussel1.21 km²18% commune
- Castelfranc0.90 km²15% commune
- Gigouzac0.47 km²5% commune
- Catus0.43 km²2% commune
- Mechmont0.37 km²6% commune
- Sabadel-Lauzès0.32 km²4% commune
- Beaumat0.16 km²2% commune
- Fontanes0.11 km²1% commune
- Saint-Denis-Catus0.07 km²1% commune
- Labastide-du-Vert0.05 km²0% commune
- Caniac-du-Causse0.01 km²0% commune
- Tour-de-Faure0.01 km²0% commune
- Anglars-Juillac0.00 km²0% commune
10 intersecting protected areas
Causses Du Quercy
IUCN VRegional Nature Park
326.44 km² overlap
Vallées de la Rauze et du Vers et vallons tributaires
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
48.11 km² overlap
Moyenne vallée du Lot inférieure
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
16.13 km² overlap
Pelouses de Lalbenque
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.96 km² overlap
Lot
IUCN IIINational Nature Reserve
1.73 km² overlap
Serres de Saint-Paul-de-Loubressac et de Saint-Barthélémy, et causse de Pech Tondut
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.80 km² overlap
Basse vallée du Célé
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.36 km² overlap
camp ramon
IUCN IVLand acquired by a regional conservatory of natural areas
0.19 km² overlap
Land acquired by a regional conservatory of natural areas
0.02 km² overlap
1 more protected areassorted by overlap area
Falaises lotoises (Rapaces)
IUCN IVBiotope Protection Order
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 984 distinct species · 216 578 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Lot : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 93 interactions GloBI sur 5 types (connectance 17.6%, 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°
12,2°C
Annual rain
813mm
Moisture idx (CMI)
-0,17
Runoff
346mm/an
PET
983mm
AET
675mm
Mean slope
6,8°
Water table
290cm
Forest
37%
Crops
27%
Urban
3%
Protected
47%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)