HydroBASINS lev08 watershed · #2080569500
Bassin de la Bléone
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 : Alpes-de-Haute-Provence
Sub-basin area
908,9km²
Upstream area
909,1km²
Discharge
10,71m³/s
Mean elev.
1 158m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 910.8 km²100.0% of basin
42 communes (GADM L5)Available for FRA, RWA
- Prads-Haute-Bléone166.00 km²99% commune
- Digne-les-Bains109.25 km²100% commune
- La Robine-sur-Galabre56.69 km²100% commune
- Barles56.65 km²95% commune
- Beaujeu46.79 km²100% commune
- Thoard42.87 km²97% commune
- La Javie37.49 km²100% commune
- Marcoux32.73 km²100% commune
- Auzet32.72 km²94% commune
- Le Chaffaut-Saint-Jurson29.61 km²100% commune
- Malijai26.02 km²99% commune
- Verdaches23.68 km²100% commune
- Draix22.85 km²99% commune
- Le Vernet22.51 km²100% commune
- Le Brusquet22.29 km²100% commune
- Barras20.04 km²96% commune
- Hautes-Duyes19.73 km²89% commune
- Mirabeau19.29 km²100% commune
- Le Castellard-Mélan19.17 km²73% commune
- Champtercier18.61 km²100% commune
- Seyne15.55 km²18% commune
- Aiglun14.72 km²100% commune
- Archail13.29 km²100% commune
- Entrages11.75 km²51% commune
- Mallemoisson6.45 km²100% commune
- Saint-Jeannet3.90 km²13% commune
- L'Escale3.58 km²17% commune
- Mézel3.24 km²15% commune
- Chaudon-Norante2.15 km²6% commune
- Les Mées1.94 km²3% commune
- Thorame-Basse1.70 km²2% commune
- Méolans-Revel1.63 km²1% commune
- Villars-Colmars1.59 km²4% commune
- Puimichel1.18 km²3% commune
- Tartonne1.01 km²2% commune
- Authon0.59 km²1% commune
- Clumanc0.58 km²1% commune
- Bayons0.49 km²0% commune
- Allos0.24 km²0% commune
- Châteauredon0.15 km²1% commune
- Selonnet0.05 km²0% commune
- Volonne0.00 km²0% commune
16 intersecting protected areas
Protected perimeter around a national nature reserve
868.52 km² overlap
Montagne de Val-Haut - Clues de Barles - Clues de Verdaches
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
111.90 km² overlap
Cheval Blanc - Montagne de Boules - Barre des Dourbes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
21.85 km² overlap
La Durance
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.62 km² overlap
Dormillouse - Lavercq
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.43 km² overlap
Biotope Protection Order
1.28 km² overlap
Région De Digne
IUCN IIINational Nature Reserve
0.70 km² overlap
La Durance
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.44 km² overlap
Le Brusquet
IUCN IVForest Managed Biological Reserve
0.33 km² overlap
7 more protected areassorted by overlap area
National Park - Buffer zone/Area of adhesion
0.32 km² overlap
Laverq
IUCN IVForest Managed Biological Reserve
0.27 km² overlap
Biotope Protection Order
0.11 km² overlap
Biotope Protection Order
0.05 km² overlap
Pic De Couard
IUCN IVForest Managed Biological Reserve
0.05 km² overlap
prairies du chaffaut
IUCN IVLand acquired by a regional conservatory of natural areas
0.01 km² overlap
adou des faisses
IUCN IVLand acquired by a regional conservatory of natural areas
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
8 630 distinct species · 511 044 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 de la Bléone : 19 espèces reliées par 138 interactions GloBI sur 5 types (connectance 27.8%, 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°
8,1°C
Annual rain
920mm
Moisture idx (CMI)
0,11
Runoff
403mm/an
PET
790mm
AET
622mm
Mean slope
18,3°
Water table
613cm
Forest
58%
Crops
11%
Urban
2%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)