HydroBASINS lev08 watershed · #2080606350
Bassin de Río Tera
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 : La Rioja, Soria
Sub-basin area
379,7km²
Upstream area
379,9km²
Discharge
2,04m³/s
Mean elev.
1 368m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
2 dept-equivalent regions (GADM L2)
- 377.8 km²99.3% of basin
- 2.5 km²0.7% of basin
9 intersecting protected areas
Sierras de Urbión y Cebollera
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
250.46 km² overlap
Sierra de Urbión
IUCN Not ReportedSpecial Protection Area (Birds Directive)
235.75 km² overlap
Oncala-Valtajeros
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
9.56 km² overlap
Acebal de Garagüeta
IUCN IVNature Reserve
4.02 km² overlap
Sierra de Cebollera
IUCN VNatural Park
2.40 km² overlap
Sierras de Demanda, Urbión, Cebollera y Cameros
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.40 km² overlap
Sierras de Demanda, Urbión, Cebollera y Cameros
IUCN Not ReportedSpecial Protection Area (Birds Directive)
2.40 km² overlap
Natura 2000
2.40 km² overlap
Riberas del Río Duero y afluentes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.22 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 244 distinct species · 56 286 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 38 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 Tera : 28 espèces reliées par 73 interactions GloBI sur 4 types (connectance 10.4%, 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°
8,4°C
Annual rain
700mm
Moisture idx (CMI)
-0,24
Runoff
193mm/an
PET
929mm
AET
581mm
Mean slope
8,8°
Water table
424cm
Forest
65%
Crops
25%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)