HydroBASINS lev08 watershed · #8080002170
Bassin de Little Susitna River
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 : Matanuska-Susitna
Sub-basin area
2 222,1km²
Upstream area
2 222,1km²
Discharge
0,27m³/s
Mean elev.
100m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 2194.9 km²98.2% of basin
19 intersecting protected areas
Susitna Flats State
IUCN VGame Refuge
533.72 km² overlap
Little Susitna
IUCN VRecreation River
59.79 km² overlap
Palmer Hay Flats State
IUCN VGame Refuge
44.84 km² overlap
State Conservation Area
14.18 km² overlap
Goose Bay State
IUCN VGame Refuge
7.95 km² overlap
Nancy Lake State
IUCN VRecreation Area
7.89 km² overlap
Palmer Hay Flats Imla
IUCN VAccess
3.11 km² overlap
Beverly Creek
IUCN VWildlife Park
0.15 km² overlap
Lake View Public
IUCN VPark
0.14 km² overlap
10 more protected areassorted by overlap area
Carousel Public Use Area
IUCN VLocal Conservation Area
0.08 km² overlap
Garnet
IUCN VPark
0.06 km² overlap
Park
0.05 km² overlap
Zephyr Drive
IUCN VPark
0.04 km² overlap
Bromley Drive
IUCN VPark
0.03 km² overlap
Cottonwood Shores
IUCN VPark
0.01 km² overlap
Niklason Lake
IUCN VLake
0.01 km² overlap
Doubloon & Island Lake
IUCN VLake
0.01 km² overlap
Amethyst
IUCN VPark
0.00 km² overlap
Cornelius Lake
IUCN VLake
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 598 distinct species · 81 133 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 Little Susitna River : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 58 interactions GloBI sur 4 types (connectance 11.7%, filtre Serrano α=0.2). 12 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°
1,6°C
Annual rain
455mm
Moisture idx (CMI)
-0,14
Runoff
499mm/an
PET
528mm
AET
365mm
Mean slope
3,2°
Water table
65cm
Forest
44%
Crops
0%
Urban
2%
Protected
30%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)