HydroBASINS lev08 watershed · #2080554750
Bassin de la Souloise
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 : Drôme, Hautes-Alpes, Isère
Sub-basin area
345,2km²
Upstream area
1 116km²
Discharge
19,8m³/s
Mean elev.
1 402m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin du Drac541 km²
- Bassin de Torrent de Saint-Maurice230 km²
3 dept-equivalent regions (GADM L2)
- 181.9 km²52.6% of basin
- 164.0 km²47.4% of basin
- 0.1 km²0.0% of basin
32 communes (GADM L5)Available for FRA, RWA
- Saint-Étienne-en-Dévoluy64.47 km²95% commune
- Saint-Disdier43.81 km²95% commune
- Pellafol35.29 km²99% commune
- Agnières-en-Dévoluy30.63 km²93% commune
- Cordéac26.02 km²98% commune
- La Salette-Fallavaux21.97 km²98% commune
- Aspres-lès-Corps16.94 km²98% commune
- Saint-Sébastien15.56 km²74% commune
- Corps11.09 km²100% commune
- Monestier-d'Ambel10.88 km²99% commune
- Les Côtes-de-Corps9.97 km²100% commune
- La Salle-en-Beaumont9.19 km²100% commune
- Sainte-Luce8.66 km²100% commune
- Quet-en-Beaumont8.29 km²100% commune
- Beaufin6.45 km²100% commune
- Saint-Firmin6.09 km²28% commune
- Saint-Michel-en-Beaumont5.32 km²64% commune
- Ambel4.90 km²100% commune
- Saint-Laurent-en-Beaumont3.82 km²30% commune
- Saint-Pierre-de-Méaroz3.79 km²85% commune
- Le Glaizil1.28 km²6% commune
- Valjouffrey0.58 km²0% commune
- La Cluse0.54 km²1% commune
- Le Noyer0.09 km²0% commune
- Saint-Jean-d'Hérans0.08 km²0% commune
- Entraigues0.07 km²0% commune
- Gap0.06 km²0% commune
- Lus-la-Croix-Haute0.05 km²0% commune
- Chauffayer0.03 km²0% commune
- Saint-Baudille-et-Pipet0.02 km²0% commune
- Montmaur0.01 km²0% commune
- Mens0.01 km²0% commune
6 intersecting protected areas
Dévoluy - Durbon - Charance - Champsaur
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
64.02 km² overlap
Massif de l'Obiou et gorges de la Souloise
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
36.82 km² overlap
National Park - Buffer zone/Area of adhesion
23.55 km² overlap
Plateau De Bure
IUCN IVBiotope Protection Order
0.83 km² overlap
Landes, pelouses, forêts et prairies humides de Lus-la-Croix-Haute
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.17 km² overlap
Vercors
IUCN VRegional Nature Park
0.17 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 414 distinct species · 208 781 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 Souloise : 33 espèces + 7 bulles famille, 76 interactions GloBI documentées sur 7 types (connectance 9.7%, filtre Serrano α=0.2). Les 7 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°
5,8°C
Annual rain
1 118mm
Moisture idx (CMI)
0,33
Runoff
488mm/an
PET
725mm
AET
629mm
Mean slope
20,3°
Water table
656cm
Forest
62%
Crops
17%
Urban
0%
Protected
7%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)