HydroBASINS lev08 watershed · #7080761080
Bassin de Gallier 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 3 administrative regions : Chambers, Jefferson, Liberty
Sub-basin area
1 845,3km²
Upstream area
1 845,4km²
Discharge
30,49m³/s
Mean elev.
7m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
3 dept-equivalent regions (GADM L2)
- Jefferson1748.0 km²94.8% of basin
- Chambers63.2 km²3.4% of basin
- Liberty32.0 km²1.7% of basin
9 intersecting protected areas
Mcfaddin
IUCN IVNational Wildlife Refuge
114.87 km² overlap
J.D. Murphree
IUCN VWildlife Management Area
100.31 km² overlap
Marine Protected Area
99.81 km² overlap
Marine Protected Area
93.32 km² overlap
Sea Rim State Park
IUCN IVMarine Protected Area
11.20 km² overlap
Mcfaddin
IUCN VNational Wildlife Refuge
5.18 km² overlap
Reserve Program
2.25 km² overlap
Texas Point
IUCN IVNational Wildlife Refuge
0.09 km² overlap
Marine Protected Area
0.09 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 942 distinct species · 469 932 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Gallier Canal : 25 espèces reliées par 79 interactions GloBI sur 3 types (connectance 12.5%, 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°
20,1°C
Annual rain
1 392mm
Moisture idx (CMI)
0,02
Runoff
603mm/an
PET
1 370mm
AET
1 117mm
Mean slope
0,1°
Water table
6cm
Forest
21%
Crops
33%
Urban
10%
Protected
11%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)