HydroBASINS lev08 watershed · #6080776330
Bassin de Río Grande
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 4 administrative regions : El Carmen, Palpalá, San Pedro, Santa Bárbara
Sub-basin area
267,5km²
Upstream area
8 369,1km²
Discharge
34,31m³/s
Mean elev.
903m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Río Grande1424 km²
- Bassin de Río del Cerro Negro768 km²
4 dept-equivalent regions (GADM L2)
- 226.7 km²84.9% of basin
- 36.5 km²13.7% of basin
- 3.7 km²1.4% of basin
- 0.0 km²0.0% of basin
1 intersecting protected areas
Serranias de Zapla
IUCN VIMultiple Use Municipal Ecological Reserve
3.74 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
740 distinct species · 27 501 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 37 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 Grande : 31 espèces reliées par 39 interactions GloBI sur 3 types (connectance 5.9%, filtre Serrano α=0.2). 6 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°
18,4°C
Annual rain
687mm
Moisture idx (CMI)
-0,55
Runoff
145mm/an
PET
1 526mm
AET
582mm
Mean slope
6,2°
Water table
327cm
Forest
82%
Crops
10%
Urban
7%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)