Ontologia

HydroBASINS lev08 watershed · #8080280340

Bassin de Swanson 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 : Kenai Peninsula

60% lakePfafstetter: 81130402

Sub-basin area

585,6km²

Upstream area

585,6km²

Discharge

6,88m³/s

Mean elev.

58m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Kenai River50 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

2 intersecting protected areas

  • Kenai

    IUCN IV

    National Wildlife Refuge

    517.83 km² overlap

  • Dave Spencer

    IUCN Ib

    Wilderness Area

    104.36 km² overlap

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

Species present

720 distinct species · 10 630 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

10 630 obs · 18 cellules
Obs. / cellule
≥ 2 070
1 598–2 069
780–1 597
281–779
< 281

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

Ecological tissue

Sample of 40 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 Swanson River : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 99 interactions GloBI sur 4 types (connectance 12.1%, filtre Serrano α=0.2). 19 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
99
Connectance
0.121
Patrimoniales
1
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°

1,6°C

Annual rain

533mm

Moisture idx (CMI)

0,04

Runoff

379mm/an

PET

509mm

AET

373mm

Mean slope

2,6°

Water table

64cm

Forest

79%

Crops

0%

Urban

0%

Protected

86%

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