HydroBASINS lev08 watershed · #7080831720
Bassin de Rio Laja
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 6 administrative regions : Apaseo el Grande, Celaya, Comonfort, Querétaro, San Miguel de Allende +1
Sub-basin area
1 553,5km²
Upstream area
5 908km²
Discharge
6,52m³/s
Mean elev.
2 018m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Laja489 km²
- Bassin de Río Laja272 km²
6 dept-equivalent regions (GADM L2)
- San Miguel de AllendeGuanajuato · México818.3 km²52.8% of basin
- 452.0 km²29.2% of basin
- 185.1 km²11.9% of basin
- Apaseo el GrandeGuanajuato · México61.3 km²4.0% of basin
- 22.0 km²1.4% of basin
- Santa Cruz de Juventino RosasGuanajuato · México10.4 km²0.7% of basin
7 intersecting protected areas
Voluntary Conservation Area
48.78 km² overlap
Cerro Rosa y Jocoque
IUCN Not ReportedMunicipal Park
48.62 km² overlap
Presa Neutla y su Zona de Influencia
IUCN Not ReportedEcological Restoration Area
20.16 km² overlap
Zona Occidental de Microcuencas
IUCN Not ReportedEcological Conservation
17.21 km² overlap
Los Divisaderos
IUCN Not ReportedMunicipal Park
5.01 km² overlap
El Charco del Ingenio y Parque Landeta
IUCN Not ReportedEcological Conservation Area
3.92 km² overlap
Voluntary Conservation Area
0.68 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 400 distinct species · 143 385 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 Bassin de Rio Laja : 28 espèces reliées par 67 interactions GloBI sur 4 types (connectance 10.6%, 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).
Hydroclimate (BasinATLAS lev08)
Mean T°
18,2°C
Annual rain
630mm
Moisture idx (CMI)
-0,62
Runoff
27mm/an
PET
1 650mm
AET
532mm
Mean slope
6,1°
Water table
503cm
Forest
27%
Crops
37%
Urban
9%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)