HydroBASINS lev08 watershed · #2080641040
Bassin de Río Tajuña
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 : Guadalajara, Madrid, Soria
Sub-basin area
2 622,2km²
Upstream area
2 622,2km²
Discharge
7,04m³/s
Mean elev.
917m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- 1966.1 km²74.9% of basin
- 656.8 km²25.0% of basin
- 2.5 km²0.1% of basin
18 intersecting protected areas
Parameras de Maranchón, hoz del Mesa y Aragoncillo
IUCN Not ReportedSpecial Protection Area (Birds Directive)
83.22 km² overlap
Parameras de Maranchón, hoz del Mesa y Aragoncillo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
83.22 km² overlap
Valle del Río Ungría
IUCN VProtected Landscape
70.74 km² overlap
Quejigares de Barriopedro y Brihuega
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
43.86 km² overlap
Valle del Tajuña en Torrecuadrada
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
28.62 km² overlap
Valle del Tajuña en Torrecuadrada
IUCN Not ReportedSpecial Protection Area (Birds Directive)
28.62 km² overlap
Vegas, cuestas y páramos del sureste de Madrid
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
27.54 km² overlap
Rebollar de Navalpotro
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
7.66 km² overlap
Cortados y cantiles de los ríos Jarama y Manzanares
IUCN Not ReportedSpecial Protection Area (Birds Directive)
4.32 km² overlap
9 more protected areassorted by overlap area
Regional Park
4.04 km² overlap
Laderas yesosas de Tendilla
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
2.61 km² overlap
Cueva de La Canaleja
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1.63 km² overlap
Páramo de Layna - ZEPA
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1.52 km² overlap
Riberas de Valfermoso de Tajuña y Brihuega
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.99 km² overlap
Laguna de San Juan
IUCN IIIAnimal Refuge
0.45 km² overlap
Alto Tajo
IUCN Not ReportedSpecial Protection Area (Birds Directive)
0.10 km² overlap
Alto Tajo
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
0.10 km² overlap
Cueva de la Canaleja
IUCN IVMicroreserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 532 distinct species · 294 405 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Tajuña : 26 espèces reliées par 62 interactions GloBI sur 4 types (connectance 9.8%, 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°
11,8°C
Annual rain
471mm
Moisture idx (CMI)
-0,55
Runoff
81mm/an
PET
1 054mm
AET
403mm
Mean slope
4,5°
Water table
385cm
Forest
13%
Crops
56%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)