HydroBASINS lev08 watershed · #2080567920
Bassin de l'Aveyron
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 4 administrative regions : Aveyron, Lozère, Tarn, Tarn-et-Garonne
Sub-basin area
1 527,6km²
Upstream area
1 527,6km²
Discharge
19,08m³/s
Mean elev.
589m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 1479.9 km²96.7% of basin
- 29.6 km²1.9% of basin
- 21.2 km²1.4% of basin
- 0.1 km²0.0% of basin
94 communes (GADM L5)Available for FRA, RWA
- Sévérac-le-Château83.19 km²76% commune
- Colombiès54.21 km²98% commune
- Moyrazès48.73 km²100% commune
- Villefranche-de-Rouergue45.91 km²100% commune
- La Bastide-l'Évêque44.14 km²100% commune
- Montrozier41.17 km²85% commune
- Najac38.72 km²71% commune
- Maleville35.49 km²100% commune
- Bertholène35.43 km²76% commune
- Flavin34.12 km²67% commune
- Campagnac33.93 km²81% commune
- Rignac33.38 km²100% commune
- La Fouillade32.86 km²100% commune
- Sainte-Radegonde30.49 km²100% commune
- Saint-Saturnin-de-Lenne29.96 km²89% commune
- Gaillac-d'Aveyron29.91 km²100% commune
- La Rouquette29.77 km²100% commune
- Onet-le-Château28.23 km²70% commune
- Lavernhe26.54 km²99% commune
- Lapanouse26.52 km²100% commune
- Sanvensa26.46 km²100% commune
- Druelle26.22 km²73% commune
- Recoules-Prévinquières25.42 km²100% commune
- Rieupeyroux24.02 km²44% commune
- Luc-la-Primaube24.00 km²89% commune
- La Loubière22.24 km²78% commune
- Anglars-Saint-Félix22.14 km²99% commune
- Morlhon-le-Haut22.03 km²100% commune
- Buzeins21.97 km²100% commune
- Agen-d'Aveyron21.74 km²100% commune
- Villeneuve21.72 km²33% commune
- Vailhourles21.46 km²66% commune
- Prévinquières20.76 km²100% commune
- Vimenet20.65 km²100% commune
- Vabre-Tizac20.37 km²88% commune
- Laissac20.23 km²99% commune
- Monteils16.90 km²100% commune
- Goutrens16.74 km²65% commune
- Lunac16.69 km²90% commune
- Baraqueville16.67 km²49% commune
- Compolibat16.57 km²100% commune
- Saint-Salvadou15.12 km²100% commune
- Palmas14.34 km²100% commune
- Castanet14.12 km²64% commune
- Sévérac-l'Église12.78 km²99% commune
- Olemps12.74 km²100% commune
- Pierrefiche12.36 km²72% commune
- Roussennac11.90 km²70% commune
- Brandonnet11.87 km²100% commune
- Belcastel11.35 km²100% commune
- Privezac11.31 km²100% commune
- Lanuéjouls11.31 km²95% commune
- Rodez11.08 km²100% commune
- Bournazel11.01 km²67% commune
- La Tieule10.97 km²45% commune
- Coussergues10.57 km²100% commune
- Saint-André-de-Najac10.44 km²41% commune
- Savignac9.98 km²65% commune
- Le Massegros9.50 km²53% commune
- Le Recoux9.09 km²38% commune
- Saint-Rémy8.95 km²100% commune
- Mayran8.54 km²57% commune
- Saint-Martin-de-Lenne8.32 km²86% commune
- Toulonjac7.33 km²100% commune
- Laguépie7.09 km²48% commune
- La Capelle-Bleys7.02 km²44% commune
- Le Monastère6.82 km²100% commune
- Le Vibal6.04 km²23% commune
- Sébazac-Concourès4.83 km²18% commune
- Bor-et-Bar4.43 km²33% commune
- Sainte-Croix3.94 km²15% commune
- Boussac3.15 km²18% commune
- Clairvaux-d'Aveyron3.00 km²12% commune
- Drulhe2.83 km²16% commune
- Calmont2.76 km²9% commune
- Lescure-Jaoul2.67 km²14% commune
- Saint-Igest2.66 km²23% commune
- Martiel2.08 km²4% commune
- Vézins-de-Lévézou1.86 km²2% commune
- Escandolières1.82 km²14% commune
- Cruéjouls1.62 km²9% commune
- Ségur1.24 km²2% commune
- Vaureilles0.64 km²4% commune
- Pont-de-Salars0.58 km²1% commune
- Arques0.36 km²3% commune
- Manhac0.15 km²1% commune
- Saint-Martin-Laguépie0.13 km²1% commune
- Verrières0.13 km²0% commune
- Saint-Geniez-d'Olt0.11 km²0% commune
- Castanet0.10 km²0% commune
- Bozouls0.05 km²0% commune
- Saint-Rome-de-Dolan0.03 km²0% commune
- Salles-la-Source0.01 km²0% commune
- Auzits0.00 km²0% commune
7 intersecting protected areas
Grands Causses
IUCN VRegional Nature Park
259.37 km² overlap
Special Areas of Conservation (Habitats Directive)
7.60 km² overlap
Causse Comtal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.20 km² overlap
Vallées du Tarn, de l'Aveyron, du Viaur, de l'Agout et du Gijou
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.88 km² overlap
Lande de la Borie
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.17 km² overlap
Étangs du Ségala
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.51 km² overlap
Aubrac
IUCN VRegional Nature Park
0.15 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 966 distinct species · 372 997 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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'Aveyron : 26 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 90 interactions GloBI sur 6 types (connectance 12.8%, filtre Serrano α=0.2). 12 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°
11,1°C
Annual rain
784mm
Moisture idx (CMI)
-0,17
Runoff
421mm/an
PET
948mm
AET
656mm
Mean slope
6,2°
Water table
359cm
Forest
17%
Crops
6%
Urban
3%
Protected
17%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)