HydroBASINS lev08 watershed · #2080621870
Bassin de Rio Douro
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 12 administrative regions : Amarante, Arouca, Baião, Castelo de Paiva, Castro Daire +7
Sub-basin area
617,1km²
Upstream area
91 973,1km²
Discharge
530,72m³/s
Mean elev.
556m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Varosa316 km²
- Bassin de Rio Douro0 km²
12 dept-equivalent regions (GADM L2)
- CinfãesViseu · Portugal169.7 km²27.5% of basin
- 168.3 km²27.2% of basin
- 118.2 km²19.1% of basin
- Marco de CanavesesPorto · Portugal43.1 km²7.0% of basin
- Peso da RéguaVila Real · Portugal42.3 km²6.8% of basin
- 33.8 km²5.5% of basin
- Mesão FrioVila Real · Portugal26.7 km²4.3% of basin
- Santa Marta de PenaguiãoVila Real · Portugal14.5 km²2.4% of basin
4 moreFull L2 list
- Amarante0.8 km² · 0.1%
- Castro Daire0.6 km² · 0.1%
- Arouca0.0 km² · 0.0%
- Castelo de Paiva0.0 km² · 0.0%
3 intersecting protected areas
Montemuro
IUCN Not ReportedSite of Community Importance (Habitats Directive)
170.54 km² overlap
Alvão / Marão
IUCN Not ReportedSite of Community Importance (Habitats Directive)
25.84 km² overlap
Rio Paiva
IUCN Not ReportedSite of Community Importance (Habitats Directive)
0.93 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 763 distinct species · 27 912 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 Rio Douro : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 84 interactions GloBI sur 5 types (connectance 13.3%, filtre Serrano α=0.2). 9 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°
13,0°C
Annual rain
1 276mm
Moisture idx (CMI)
0,19
Runoff
735mm/an
PET
1 003mm
AET
700mm
Mean slope
13,2°
Water table
494cm
Forest
89%
Crops
21%
Urban
4%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)