HydroBASINS lev08 watershed · #2080564740
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-et-Garonne
Sub-basin area
329,4km²
Upstream area
11 538,2km²
Discharge
156,44m³/s
Mean elev.
91m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de la Lède404 km²
- Bassin du Lot139 km²
1 dept-equivalent regions (GADM L2)
- 330.1 km²100.0% of basin
36 communes (GADM L5)Available for FRA, RWA
- Sainte-Livrade-sur-Lot27.46 km²89% commune
- Montpezat24.02 km²100% commune
- Clairac22.42 km²67% commune
- Aiguillon20.20 km²72% commune
- Dolmayrac19.18 km²99% commune
- Bourran18.38 km²100% commune
- Le Temple-sur-Lot17.16 km²100% commune
- Castelmoron-sur-Lot16.93 km²71% commune
- Lafitte-sur-Lot16.78 km²100% commune
- Saint-Sardos14.28 km²100% commune
- Lacépède11.51 km²100% commune
- Casseneuil10.59 km²58% commune
- Saint-Salvy9.66 km²100% commune
- Saint-Étienne-de-Fougères9.65 km²100% commune
- Fongrave9.39 km²100% commune
- Prayssas9.20 km²35% commune
- Galapian8.98 km²100% commune
- Saint-Pastour8.70 km²59% commune
- Allez-et-Cazeneuve7.56 km²67% commune
- Pinel-Hauterive7.01 km²33% commune
- Beaugas6.02 km²27% commune
- Sainte-Colombe-de-Villeneuve5.11 km²27% commune
- Lagarrigue4.54 km²100% commune
- Cours4.35 km²37% commune
- Granges-sur-Lot3.81 km²100% commune
- Laparade3.30 km²20% commune
- Port-Sainte-Marie3.20 km²17% commune
- Pailloles2.97 km²32% commune
- Bazens2.75 km²23% commune
- Frégimont2.66 km²36% commune
- Nicole1.17 km²26% commune
- Monclar0.93 km²4% commune
- Sembas0.16 km²1% commune
- Monheurt0.05 km²0% commune
- Laugnac0.03 km²0% commune
- Cancon0.01 km²0% commune
6 intersecting protected areas
Garonne Et Section Du Lot
IUCN IVBiotope Protection Order
2.53 km² overlap
coteau calcaire de lacepede
IUCN IVLand acquired by a regional conservatory of natural areas
0.19 km² overlap
La Garonne en Nouvelle-Aquitaine
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.18 km² overlap
L\'Automne
IUCN IVBiotope Protection Order
0.13 km² overlap
Site du Griffoul, confluence de l'Automne
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.10 km² overlap
prairies de la bartasse
IUCN IVLand acquired by a regional conservatory of natural areas
0.03 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 446 distinct species · 102 251 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 117 interactions GloBI sur 6 types (connectance 13.6%, filtre Serrano α=0.2). 14 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°
12,4°C
Annual rain
797mm
Moisture idx (CMI)
-0,20
Runoff
304mm/an
PET
992mm
AET
663mm
Mean slope
3,5°
Water table
184cm
Forest
0%
Crops
91%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)