HydroBASINS lev08 watershed · #2080554640
Bassin de l'Ébron
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
358,2km²
Upstream area
358,2km²
Discharge
5,33m³/s
Mean elev.
1 111m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 353.0 km²98.3% of basin
- 4.5 km²1.2% of basin
- 1.5 km²0.4% of basin
28 communes (GADM L5)Available for FRA, RWA
- Tréminis48.69 km²99% commune
- Chichilianne44.64 km²72% commune
- Saint-Baudille-et-Pipet35.64 km²100% commune
- Mens28.24 km²99% commune
- Lalley23.51 km²99% commune
- Saint-Michel-les-Portes21.08 km²100% commune
- Clelles20.67 km²100% commune
- Prébois16.06 km²100% commune
- Percy16.02 km²100% commune
- Saint-Martin-de-Clelles15.27 km²100% commune
- Le Monestier-du-Percy15.08 km²100% commune
- Roissard14.56 km²99% commune
- Saint-Maurice-en-Trièves12.90 km²99% commune
- Lavars12.57 km²83% commune
- Cornillon-en-Trièves11.69 km²85% commune
- Gresse-en-Vercors9.69 km²12% commune
- Treschenu-Creyers2.97 km²4% commune
- Saint-Sébastien2.26 km²11% commune
- Saint-Paul-lès-Monestier1.78 km²13% commune
- Saint-Disdier1.55 km²3% commune
- Lus-la-Croix-Haute1.45 km²2% commune
- Treffort0.99 km²8% commune
- Monestier-de-Clermont0.57 km²10% commune
- Cordéac0.53 km²2% commune
- Pellafol0.33 km²1% commune
- Saint-Jean-d'Hérans0.19 km²1% commune
- Mayres-Savel0.07 km²1% commune
- Glandage0.04 km²0% commune
7 intersecting protected areas
Vercors
IUCN VRegional Nature Park
148.57 km² overlap
Hauts plateaux et contreforts du Vercors oriental
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
38.25 km² overlap
Hauts plateaux du Vercors
IUCN Not ReportedSpecial Protection Area (Birds Directive)
33.11 km² overlap
Hauts Plateaux Du Vercors
IUCN IVNational Nature Reserve
33.11 km² overlap
Dévoluy - Durbon - Charance - Champsaur
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.77 km² overlap
Massif de l'Obiou et gorges de la Souloise
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.50 km² overlap
Landes, pelouses, forêts et prairies humides de Lus-la-Croix-Haute
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.05 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 341 distinct species · 300 106 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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'Ébron : 30 espèces + 5 bulles famille, 69 interactions GloBI documentées sur 7 types (connectance 11.6%, 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°
7,1°C
Annual rain
1 046mm
Moisture idx (CMI)
0,23
Runoff
470mm/an
PET
787mm
AET
654mm
Mean slope
16,5°
Water table
543cm
Forest
82%
Crops
7%
Urban
0%
Protected
41%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)