HydroBASINS lev08 watershed · #7080049270
Bassin de Río Bravo / Rio 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 6 administrative regions across 2 countries : Cameron, Hidalgo, Matamoros, Reynosa, Río Bravo +1
Sub-basin area
2 242,3km²
Upstream area
475 503,2km²
Discharge
63,43m³/s
Mean elev.
26m
Administrative coverage
Hydrographic chain
▼ Drains into
Outlet (drains to ocean / endorheic)
▲ Receives from 20 basins
- Bassin · #70800741404525 km²
- Bassin de A. el derrame3976 km²
- Bassin de Black Mountain Draw3948 km²
- Bassin de la Vieja3280 km²
- Bassin · #70800743803208 km²
- + 15 more
6 dept-equivalent regions (GADM L2)
- 890.2 km²39.8% of basin
- 450.6 km²20.1% of basin
- Cameron431.2 km²19.3% of basin
- Hidalgo272.9 km²12.2% of basin
- 166.7 km²7.4% of basin
- 2.0 km²0.1% of basin
9 intersecting protected areas
Laguna Madre y Delta del Río Bravo
IUCN Not ApplicableUNESCO-MAB Biosphere Reserve
131.56 km² overlap
Flora and Fauna Protection Area
131.53 km² overlap
Lower Rio Grande Valley
IUCN IVNational Wildlife Refuge
76.56 km² overlap
Marine Protected Area
74.64 km² overlap
Santa Ana
IUCN IVNational Wildlife Refuge
8.54 km² overlap
Boscaje De La Palma Fee
IUCN VPrivate Conservation Land
4.14 km² overlap
Las Palomas
IUCN VWildlife Management Area
2.82 km² overlap
Laguna La Escondida
IUCN Not ReportedState Park
2.20 km² overlap
Sabal Palm Grove
IUCN VSanctuary
0.65 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
6 852 distinct species · 3 476 461 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 29 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 Bravo / Rio Grande : 21 espèces reliées par 46 interactions GloBI sur 3 types (connectance 11.3%, 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°
23,2°C
Annual rain
635mm
Moisture idx (CMI)
-0,58
Runoff
35mm/an
PET
1 521mm
AET
537mm
Mean slope
0,1°
Water table
39cm
Forest
8%
Crops
68%
Urban
22%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)