HydroBASINS lev08 watershed · #2080619070
Bassin de Rio Olo
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 9 administrative regions : Amarante, Cabeceiras de Basto, Celorico de Basto, Fafe, Felgueiras +4
Sub-basin area
514,1km²
Upstream area
2 909,4km²
Discharge
64,92m³/s
Mean elev.
475m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio Poio238 km²
- Bassin de Ribeira do Rio de Ouro176 km²
9 dept-equivalent regions (GADM L2)
- Mondim de BastoVila Real · Portugal166.4 km²32.3% of basin
- Celorico de BastoBraga · Portugal158.3 km²30.7% of basin
- 131.6 km²25.6% of basin
- 28.8 km²5.6% of basin
- FelgueirasPorto · Portugal14.3 km²2.8% of basin
- Cabeceiras de BastoBraga · Portugal7.1 km²1.4% of basin
- Marco de CanavesesPorto · Portugal5.1 km²1.0% of basin
- Ribeira de PenaVila Real · Portugal2.9 km²0.6% of basin
1 moreFull L2 list
- Fafe0.4 km² · 0.1%
2 intersecting protected areas
Alvão / Marão
IUCN Not ReportedSite of Community Importance (Habitats Directive)
153.75 km² overlap
Alvao
IUCN VNature Park
57.61 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 159 distinct species · 33 161 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Olo : 20 espèces reliées par 65 interactions GloBI sur 6 types (connectance 14.9%, filtre Serrano α=0.2). 10 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°
13,3°C
Annual rain
1 234mm
Moisture idx (CMI)
0,16
Runoff
783mm/an
PET
1 019mm
AET
702mm
Mean slope
11,1°
Water table
461cm
Forest
89%
Crops
7%
Urban
7%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)