HydroBASINS lev08 watershed · #7080839040
Bassin de Río San Juan
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 2 administrative regions : Atenco, Ecatepec de Morelos
Sub-basin area
5,6km²
Upstream area
5 953,6km²
Discharge
12,06m³/s
Mean elev.
2 235m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Tula1815 km²
- Bassin de Río San Juan542 km²
2 dept-equivalent regions (GADM L2)
- 3.4 km²60.9% of basin
- 2.2 km²39.1% of basin
2 intersecting protected areas
Lago de Texcoco
IUCN VINatural Resources Protection Area
2.16 km² overlap
Lago de Texcoco
IUCN VIWetland of International Importance (Ramsar Site)
2.13 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
493 distinct species · 1 811 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 Bassin de Río San Juan : 34 espèces reliées par 110 interactions GloBI sur 4 types (connectance 11.6%, 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°
15,6°C
Annual rain
584mm
Moisture idx (CMI)
-0,64
Runoff
18mm/an
PET
1 633mm
AET
492mm
Mean slope
0,1°
Water table
8cm
Forest
100%
Crops
7%
Urban
100%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)