HydroBASINS lev08 watershed · #2080650540
Bassin de Ribeira do Aravil
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 across 2 countries : Castelo Branco, Cáceres, Idanha-a-Nova
Sub-basin area
1 057,2km²
Upstream area
56 199,3km²
Discharge
264,61m³/s
Mean elev.
290m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Salor2123 km²
- Bassin de Ribeiro da Godinha20 km²
3 dept-equivalent regions (GADM L2)
- Idanha-a-NovaCastelo Branco · Portugal443.4 km²41.9% of basin
- 438.5 km²41.4% of basin
- Castelo BrancoCastelo Branco · Portugal176.4 km²16.7% of basin
9 intersecting protected areas
Tejo Internacional
IUCN VNature Park
172.38 km² overlap
Tejo Internacional, Erges e Pônsul
IUCN Not ReportedSpecial Protection Area (Birds Directive)
136.78 km² overlap
Sierra de San Pedro
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
89.19 km² overlap
Sierra de San Pedro
IUCN Not ReportedSpecial Protection Area (Birds Directive)
89.19 km² overlap
Natural Park
87.18 km² overlap
Río Tajo Internacional y Riberos
IUCN Not ReportedSpecial Protection Area (Birds Directive)
77.38 km² overlap
Cedillo y Río Tajo Internacional
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
56.09 km² overlap
Rivera de Aurela
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.66 km² overlap
Riveras de Carbajo y Calatrucha
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
10.63 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 577 distinct species · 52 099 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 Ribeira do Aravil : 25 espèces reliées par 57 interactions GloBI sur 3 types (connectance 13.1%, filtre Serrano α=0.2). 5 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°
16,2°C
Annual rain
721mm
Moisture idx (CMI)
-0,37
Runoff
216mm/an
PET
1 155mm
AET
602mm
Mean slope
4,2°
Water table
306cm
Forest
29%
Crops
22%
Urban
0%
Protected
33%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)