HydroBASINS lev08 watershed · #2080568930
Bassin de la Dourbie
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 : Aveyron, Gard, Lozère
Sub-basin area
664,3km²
Upstream area
664,3km²
Discharge
13,4m³/s
Mean elev.
838m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 448.7 km²67.4% of basin
- 214.8 km²32.3% of basin
- 2.0 km²0.3% of basin
26 communes (GADM L5)Available for FRA, RWA
- Nant108.36 km²99% commune
- Millau81.45 km²48% commune
- Lanuéjols61.77 km²98% commune
- Dourbies59.52 km²97% commune
- La Roque-Sainte-Marguerite50.05 km²100% commune
- La Couvertoirade40.27 km²63% commune
- Saint-André-de-Vézines38.72 km²100% commune
- Saint-Jean-du-Bruel37.05 km²99% commune
- Saint-Sauveur-Camprieu31.68 km²99% commune
- Cornus30.11 km²32% commune
- Trèves26.96 km²100% commune
- La Cavalerie14.48 km²35% commune
- Revens13.89 km²100% commune
- L'Hospitalet-du-Larzac12.14 km²100% commune
- Sainte-Eulalie-de-Cernon11.35 km²24% commune
- Sauclières11.21 km²29% commune
- Veyreau9.42 km²23% commune
- Causse-Bégon7.49 km²100% commune
- Valleraugue5.97 km²8% commune
- Bréau-et-Salagosse5.00 km²20% commune
- Peyreleau3.08 km²18% commune
- Meyrueis2.02 km²2% commune
- Arphy1.31 km²6% commune
- Aumessas1.17 km²6% commune
- La Cresse1.04 km²6% commune
- Arrigas0.07 km²0% commune
14 intersecting protected areas
Grands Causses
IUCN VRegional Nature Park
448.28 km² overlap
Gorges de la Dourbie et causses avoisinants
IUCN Not ReportedSpecial Protection Area (Birds Directive)
239.36 km² overlap
National Park - Buffer zone/Area of adhesion
97.96 km² overlap
Les Cévennes
IUCN Not ReportedSpecial Protection Area (Birds Directive)
85.81 km² overlap
Cévennes
IUCN IINational Park - Core Area
85.55 km² overlap
Causse Noir et ses corniches
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
79.25 km² overlap
Gorges de la Dourbie
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
70.72 km² overlap
Causse Noir
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
61.25 km² overlap
Causse noir
IUCN Not ReportedSpecial Protection Area (Birds Directive)
60.37 km² overlap
5 more protected areassorted by overlap area
Massif de l'Aigoual et du Lingas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
59.07 km² overlap
Les Alasses
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
5.79 km² overlap
Gorges du Tarn et de la Jonte
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.53 km² overlap
Gorges de Trevezel
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.95 km² overlap
Peyrebesse
IUCN IaForest Integral Biological Reserve
0.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 749 distinct species · 194 295 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 de la Dourbie : 35 espèces + 5 bulles famille, 69 interactions GloBI documentées sur 7 types (connectance 8.8%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
10,1°C
Annual rain
793mm
Moisture idx (CMI)
-0,11
Runoff
629mm/an
PET
897mm
AET
643mm
Mean slope
9,2°
Water table
369cm
Forest
64%
Crops
26%
Urban
0%
Protected
98%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)