Rivière· 33 segments
San Juan
Crosses 6 administrative regions : Barbacoas, Cumbal, Ricaurte, San Lorenzo, Tulcán +1
Total length
262km
Max discharge
58,4m³/s
Max Strahler
4
Segments matched
33
River geography6 admin regions · 0 communes
6 administrative regions crossed (GADM L2)
- TulcánCarchi · Ecuador55.0 kmin this dpt
- BarbacoasNariño · Colombia13.1 kmin this dpt
- CumbalNariño · Colombia1.6 kmin this dpt
- RicaurteNariño · Colombia1.2 kmin this dpt
- TumacoNariño · Colombia0.0 kmin this dpt
- San LorenzoEsmeraldas · Ecuador0.0 kmin this dpt
2 intersecting protected areas
Resguardo Nulpe Medio Alto Río San Juan
IUCN Not ApplicableIndigenous Reserve
Drácula
IUCN Not ApplicableOther Effective Area-based Conservation Measure - OECM
1 page = 1 named river (aggregation of 33 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
655 distinct species · 1 642 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 San Juan : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 35 interactions GloBI sur 3 types (connectance 6.6%, 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
262km
Max discharge
58,4m³/s
Max Strahler
4
Segments matched
33
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.