HydroBASINS lev08 watershed · #2080602970
Bassin de Cea
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 4 administrative regions : León, Palencia, Valladolid, Zamora
Sub-basin area
2 016,6km²
Upstream area
2 017km²
Discharge
12,93m³/s
Mean elev.
891m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 1621.1 km²80.3% of basin
- 278.2 km²13.8% of basin
- 94.3 km²4.7% of basin
- 26.3 km²1.3% of basin
12 intersecting protected areas
Oteros-Campos
IUCN Not ReportedSpecial Protection Area (Birds Directive)
261.81 km² overlap
Rebollares del Cea
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
105.31 km² overlap
Penillanuras-Campos Norte
IUCN Not ReportedSpecial Protection Area (Birds Directive)
54.30 km² overlap
Regional Park
50.76 km² overlap
Picos de Europa en Castilla y León
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
50.76 km² overlap
Picos de Europa en Castilla y León
IUCN Not ReportedSpecial Protection Area (Birds Directive)
50.76 km² overlap
Oteros-Cea
IUCN Not ReportedSpecial Protection Area (Birds Directive)
44.46 km² overlap
Lagunas de los Oteros
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
41.18 km² overlap
Penillanuras-Campos Sur
IUCN Not ReportedSpecial Protection Area (Birds Directive)
20.73 km² overlap
3 more protected areassorted by overlap area
La Nava-Campos Norte
IUCN Not ReportedSpecial Protection Area (Birds Directive)
17.00 km² overlap
Riberas del Río Cea
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
8.77 km² overlap
Riberas del Río Esla y afluentes
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
3 028 distinct species · 55 620 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 Cea : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 83 interactions GloBI sur 5 types (connectance 13.2%, 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°
10,9°C
Annual rain
554mm
Moisture idx (CMI)
-0,44
Runoff
229mm/an
PET
1 006mm
AET
467mm
Mean slope
2,8°
Water table
252cm
Forest
20%
Crops
65%
Urban
0%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)