HydroBASINS lev08 watershed · #2080590560
Bassin de Río Ulla
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 2 administrative regions : A Coruña, Pontevedra
Sub-basin area
438,3km²
Upstream area
2 423,5km²
Discharge
77,67m³/s
Mean elev.
240m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Deza549 km²
- Bassin de Río Ulla272 km²
2 dept-equivalent regions (GADM L2)
- 220.7 km²50.3% of basin
- 218.3 km²49.7% of basin
4 intersecting protected areas
Brañas de Xestoso
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
4.43 km² overlap
Brañas de Xestoso
IUCN Not AssignedNatura 2000
4.43 km² overlap
Sistema fluvial Ulla - Deza
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
3.27 km² overlap
Sistema fluvial Ulla-Deza
IUCN Not AssignedNatura 2000
3.27 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 630 distinct species · 37 742 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 Río Ulla : 28 espèces reliées par 95 interactions GloBI sur 6 types (connectance 12.2%, 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°
13,7°C
Annual rain
1 330mm
Moisture idx (CMI)
0,37
Runoff
1 100mm/an
PET
835mm
AET
676mm
Mean slope
6,5°
Water table
300cm
Forest
96%
Crops
5%
Urban
7%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)