Rivière· 44 segments
Rio Tejo
Crosses 21 administrative regions : Abrantes, Alenquer, Almeirim, Alpiarça, Azambuja +16
Total length
365km
Max discharge
424,3m³/s
Max Strahler
6
Segments matched
44
River geography21 admin regions · 0 communes
21 administrative regions crossed (GADM L2)
- AbrantesSantarém · Portugal33.5 kmin this dpt
- Vila Velha de RódãoCastelo Branco · Portugal17.3 kmin this dpt
- Vila Franca de XiraLisboa · Portugal17.1 kmin this dpt
- AzambujaLisboa · Portugal15.2 kmin this dpt
- Salvaterra de MagosSantarém · Portugal12.9 kmin this dpt
- NisaPortalegre · Portugal12.5 kmin this dpt
- ChamuscaSantarém · Portugal12.1 kmin this dpt
- AlmeirimSantarém · Portugal10.9 kmin this dpt
- Vila Nova da BarquinhaSantarém · Portugal10.0 kmin this dpt
- GaviãoPortalegre · Portugal7.6 kmin this dpt
- SantarémSantarém · Portugal7.0 kmin this dpt
- CartaxoSantarém · Portugal6.7 kmin this dpt
- AlpiarçaSantarém · Portugal5.1 kmin this dpt
- GolegãSantarém · Portugal3.7 kmin this dpt
- MaçãoSantarém · Portugal2.7 kmin this dpt
- AlenquerLisboa · Portugal2.5 kmin this dpt
- BenaventeSantarém · Portugal2.4 kmin this dpt
- ConstânciaSantarém · Portugal1.7 kmin this dpt
- EntroncamentoSantarém · Portugal1.3 kmin this dpt
- CáceresExtremadura · Spain0.2 kmin this dpt
- Torres NovasSantarém · Portugal0.0 kmin this dpt
9 intersecting protected areas
S. Mamede
IUCN Not ReportedSite of Community Importance (Habitats Directive)
Estuário do Tejo
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Estuário do Tejo
IUCN Not ReportedSite of Community Importance (Habitats Directive)
Tejo Internacional
IUCN VNature Park
Río Tajo Internacional y Riberos
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Natural Park
Cedillo y Río Tajo Internacional
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Nisa / Lage da Prata
IUCN Not ReportedSite of Community Importance (Habitats Directive)
Portas de Rodao
IUCN IIINatural Monument
1 page = 1 named river (aggregation of 44 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
159 distinct species · 1 274 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 35 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 Rio Tejo : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 87 interactions GloBI sur 3 types (connectance 13.1%, 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).
Hydrology (HydroRIVERS v10)
Total length
365km
Max discharge
424,3m³/s
Max Strahler
6
Segments matched
44
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.