Ontologia

HydroBASINS lev08 watershed · #8080254400

Bassin de South Fork Matanuska 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

7% lakePfafstetter: 81130809

Sub-basin area

630,3km²

Upstream area

630,3km²

Discharge

11,76m³/s

Mean elev.

1 429m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Matanuska River3 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

1 intersecting protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

566 distinct species · 21 420 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

21 420 obs · 12 cellules
Obs. / cellule
≥ 14 158
2 417–14 157
1 509–2 416
253–1 508
< 253

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 31 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de South Fork Matanuska River : 17 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 84 interactions GloBI sur 3 types (connectance 16.9%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
84
Connectance
0.169
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

-5,8°C

Annual rain

503mm

Moisture idx (CMI)

0,18

Runoff

900mm/an

PET

411mm

AET

333mm

Mean slope

20,4°

Water table

552cm

Forest

0%

Crops

0%

Urban

0%

Protected

0%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)