HydroBASINS lev08 watershed · #7080832430
Bassin de Rio 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 : Amealco de Bonfil, San Juan del Río
Sub-basin area
204,4km²
Upstream area
1 606,2km²
Discharge
3,86m³/s
Mean elev.
2 142m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Rio San Juan791 km²
- Bassin de Moctezuma611 km²
2 dept-equivalent regions (GADM L2)
- San Juan del RíoQuerétaro · México188.3 km²92.4% of basin
- Amealco de BonfilQuerétaro · México15.5 km²7.6% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 064 distinct species · 4 537 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 47 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 Rio San Juan : 32 espèces reliées par 112 interactions GloBI sur 5 types (connectance 9.9%, filtre Serrano α=0.2). 16 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°
16,5°C
Annual rain
669mm
Moisture idx (CMI)
-0,59
Runoff
74mm/an
PET
1 633mm
AET
566mm
Mean slope
3,6°
Water table
403cm
Forest
44%
Crops
39%
Urban
24%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)