HydroBASINS lev08 watershed · #7080389730
Bassin de Swale Creek
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 : Klickitat
Sub-basin area
312,5km²
Upstream area
312,6km²
Discharge
2,06m³/s
Mean elev.
552m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
1 dept-equivalent regions (GADM L2)
- 313.3 km²100.0% of basin
2 intersecting protected areas
Columbia Hills
IUCN VNatural Area Preserve
6.43 km² overlap
Klickitat
IUCN VWildlife Area Complex
2.16 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
498 distinct species · 17 803 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 32 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 Swale Creek : 24 espèces reliées par 102 interactions GloBI sur 4 types (connectance 18.2%, filtre Serrano α=0.2). 10 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°
8,7°C
Annual rain
452mm
Moisture idx (CMI)
-0,56
Runoff
206mm/an
PET
1 028mm
AET
381mm
Mean slope
4,5°
Water table
549cm
Forest
7%
Crops
48%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)