HydroBASINS lev08 watershed · #7080770490
Bassin de Piedritas
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 across 2 countries : Brewster, Ocampo
Sub-basin area
740,5km²
Upstream area
3 930,7km²
Discharge
2,18m³/s
Mean elev.
908m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 3 basins
- Bassin · #7080077760384 km²
- Bassin · #7080773530300 km²
- Bassin · #7080773520236 km²
2 dept-equivalent regions (GADM L2)
- 739.4 km²100.0% of basin
- 0.1 km²0.0% of basin
6 intersecting protected areas
Ocampo
IUCN VIFlora and Fauna Protection Area
685.06 km² overlap
Sierra San Vicente
IUCN VIVoluntary Conservation Area
3.38 km² overlap
Río Bravo del Norte
IUCN VINatural Monument
0.03 km² overlap
Big Bend Proposed or Recom
IUCN IbRecommended Wilderness
0.03 km² overlap
Big Bend
IUCN IINational Park
0.02 km² overlap
Big Bend
IUCN IbRecommended
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
105 distinct species · 411 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 41 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 Piedritas : 32 espèces reliées par 68 interactions GloBI sur 3 types (connectance 8.3%, filtre Serrano α=0.2). 9 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°
20,5°C
Annual rain
237mm
Moisture idx (CMI)
-0,86
Runoff
18mm/an
PET
1 675mm
AET
199mm
Mean slope
5,8°
Water table
658cm
Forest
0%
Crops
0%
Urban
0%
Protected
93%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)