HydroBASINS lev08 watershed · #8080002330
Bassin de Threemile 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 2 administrative regions : Kenai Peninsula, Matanuska-Susitna
Sub-basin area
66,7km²
Upstream area
66,7km²
Discharge
1,22m³/s
Mean elev.
28m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 64.7 km²96.5% of basin
- 1.9 km²2.8% of basin
1 intersecting protected areas
Susitna Flats State
IUCN VGame Refuge
6.85 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
162 distinct species · 9 099 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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 Threemile Creek : 21 espèces reliées par 53 interactions GloBI sur 2 types (connectance 11.4%, 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°
1,5°C
Annual rain
596mm
Moisture idx (CMI)
0,09
Runoff
577mm/an
PET
543mm
AET
396mm
Mean slope
1,3°
Water table
42cm
Forest
37%
Crops
0%
Urban
0%
Protected
10%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)