HydroBASINS lev08 watershed · #7080049210
Bassin de Arroyo Colorado
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 3 administrative regions : Cameron, Hidalgo, Willacy
Sub-basin area
1 477,3km²
Upstream area
1 477,3km²
Discharge
0,92m³/s
Mean elev.
15m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- Cameron1103.1 km²74.8% of basin
- Hidalgo323.1 km²21.9% of basin
- 44.7 km²3.0% of basin
13 intersecting protected areas
Marine Protected Area
115.59 km² overlap
Laguna Atascosa
IUCN IVNational Wildlife Refuge
115.07 km² overlap
Lower Rio Grande Valley
IUCN IVNational Wildlife Refuge
28.28 km² overlap
Marine Protected Area
28.11 km² overlap
Las Palomas
IUCN VWildlife Management Area
7.71 km² overlap
Reserve Program
2.80 km² overlap
Harriet B Ginsbach
IUCN VPreserve
0.51 km² overlap
Ramsey
IUCN VPark
0.24 km² overlap
La Feria
IUCN VNature Center
0.23 km² overlap
4 more protected areassorted by overlap area
Quinta Mazatlan
IUCN VCity Preserve
0.03 km² overlap
San Juan
IUCN VWetlands
0.02 km² overlap
Reserve Program
0.01 km² overlap
Green Island
IUCN VAudubon Society Preserve or Sanctuary
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
4 001 distinct species · 3 241 102 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 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 Arroyo Colorado : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 61 interactions GloBI sur 3 types (connectance 10.9%, filtre Serrano α=0.2). 11 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°
22,9°C
Annual rain
653mm
Moisture idx (CMI)
-0,55
Runoff
67mm/an
PET
1 463mm
AET
552mm
Mean slope
0,0°
Water table
13cm
Forest
13%
Crops
49%
Urban
17%
Protected
9%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)