HydroBASINS lev08 watershed · #7080049230
Bassin de Main Supply Canal
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 1 administrative regions : Cameron
Sub-basin area
515,8km²
Upstream area
515,8km²
Discharge
0,69m³/s
Mean elev.
6m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- Cameron514.8 km²100.0% of basin
5 intersecting protected areas
Marine Protected Area
78.94 km² overlap
Reserve Program
67.64 km² overlap
Laguna Atascosa
IUCN IVNational Wildlife Refuge
62.08 km² overlap
Lower Rio Grande Valley
IUCN IVNational Wildlife Refuge
55.30 km² overlap
Marine Protected Area
29.93 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 615 distinct species · 610 193 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 23 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 Main Supply Canal : 13 espèces reliées par 45 interactions GloBI sur 2 types (connectance 16.3%, 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°
23,0°C
Annual rain
679mm
Moisture idx (CMI)
-0,51
Runoff
63mm/an
PET
1 399mm
AET
575mm
Mean slope
0,1°
Water table
14cm
Forest
14%
Crops
37%
Urban
7%
Protected
18%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)