HydroBASINS lev08 watershed · #7080415230
Bassin de Ditch 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 3 administrative regions : Grant, Morrow, Umatilla
Sub-basin area
539,5km²
Upstream area
3 095,9km²
Discharge
19,99m³/s
Mean elev.
1 254m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de North Fork John Day River1528 km²
- Bassin de Camas Creek1028 km²
3 dept-equivalent regions (GADM L2)
- Morrow299.7 km²55.4% of basin
- Grant126.1 km²23.3% of basin
- 114.9 km²21.3% of basin
1 intersecting protected areas
Wild and Scenic River
0.55 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
535 distinct species · 5 263 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 39 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 Ditch Creek : 26 espèces reliées par 128 interactions GloBI sur 4 types (connectance 16.4%, filtre Serrano α=0.2). 14 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°
6,0°C
Annual rain
483mm
Moisture idx (CMI)
-0,50
Runoff
110mm/an
PET
974mm
AET
411mm
Mean slope
9,4°
Water table
1 049cm
Forest
66%
Crops
2%
Urban
0%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)