HydroBASINS lev08 watershed · #2080615620
Bassin de Río Segre
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 : Huesca, Lleida, Zaragoza
Sub-basin area
38,4km²
Upstream area
22 719,3km²
Discharge
183,81m³/s
Mean elev.
207m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Riu de Set1870 km²
- Bassin de Río Cinca152 km²
3 dept-equivalent regions (GADM L2)
- 19.1 km²49.6% of basin
- 13.2 km²34.3% of basin
- 6.2 km²16.1% of basin
5 intersecting protected areas
Valcuerna, Serreta Negra y Liberola
IUCN Not ReportedSpecial Protection Area (Birds Directive)
10.55 km² overlap
Matarraña - Aiguabarreix
IUCN Not ReportedSpecial Protection Area (Birds Directive)
8.44 km² overlap
Aiguabarreig Segre-Cinca
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.29 km² overlap
Aiguabarreig Segre-Cinca
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.29 km² overlap
Aiguabarreig Segre-Cinca
IUCN VProtection Plan
1.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 198 distinct species · 20 629 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Río Segre : 25 espèces reliées par 91 interactions GloBI sur 4 types (connectance 14.4%, filtre Serrano α=0.2). 11 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°
15,0°C
Annual rain
424mm
Moisture idx (CMI)
-0,62
Runoff
77mm/an
PET
1 122mm
AET
362mm
Mean slope
9,1°
Water table
488cm
Forest
49%
Crops
46%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)