HydroBASINS lev08 watershed · #7080041390
Bassin de Washington Channel
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 : District of Columbia
Sub-basin area
26km²
Upstream area
26,1km²
Discharge
0,38m³/s
Mean elev.
30m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- District of ColumbiaDistrict of Columbia · United States25.8 km²98.9% of basin
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
7 429 distinct species · 355 370 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 42 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 Washington Channel : 33 espèces reliées par 91 interactions GloBI sur 5 types (connectance 10.6%, 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°
13,1°C
Annual rain
1 037mm
Moisture idx (CMI)
-0,08
Runoff
465mm/an
PET
1 132mm
AET
837mm
Mean slope
1,4°
Water table
81cm
Forest
0%
Crops
0%
Urban
94%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)