Rivière· 51 segments
Río Jarama
Crosses 3 administrative regions : Guadalajara, Madrid, Toledo
Total length
214km
Max discharge
63,9m³/s
Max Strahler
6
Segments matched
51
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
- MadridComunidad de Madrid · Spain120.5 kmin this dpt
- GuadalajaraCastilla-La Mancha · Spain35.0 kmin this dpt
- ToledoCastilla-La Mancha · Spain9.8 kmin this dpt
15 intersecting protected areas
Sierra Norte de Guadalajara
IUCN VINatural Park
Sierra de Ayllón
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Sierra de Ayllón
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Cuenca del río Manzanares
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Vegas, cuestas y páramos del sureste de Madrid
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Cuenca del río Lozoya y Sierra Norte
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Regional Park
Cuencas de los ríos Jarama y Henares
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Estepas cerealistas de los ríos Jarama y Henares
IUCN Not ReportedSpecial Protection Area (Birds Directive)
6 more protected areassorted by area
Regional Park
Cortados y cantiles de los ríos Jarama y Manzanares
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Carrizales y sotos de Aranjuez
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Cuenca del río Guadalix
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Rañas de Matarrubia, Villaseca y Casa de Uceda
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Carrizales y sotos del Jarama y Tajo
IUCN Not ReportedSpecial Protection Area (Birds Directive)
1 page = 1 named river (aggregation of 51 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
448 distinct species · 2 283 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 43 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 Río Jarama : 35 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 86 interactions GloBI sur 5 types (connectance 9.5%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
214km
Max discharge
63,9m³/s
Max Strahler
6
Segments matched
51
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.