Ontologia

HydroBASINS lev08 watershed · #8080002580

Bassin de Johnson 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

Coastal basin 8% lakePfafstetter: 81153171

Sub-basin area

858km²

Upstream area

858km²

Discharge

5,25m³/s

Mean elev.

451m

Administrative coverage

1 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

642 distinct species · 3 630 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 630 obs · 24 cellules
Obs. / cellule
≥ 940
706–939
112–705
29–111
< 29

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

Ecological tissue

Sample of 35 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 Johnson River : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 76 interactions GloBI sur 3 types (connectance 12.8%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
76
Connectance
0.128
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°

0,6°C

Annual rain

781mm

Moisture idx (CMI)

0,39

Runoff

901mm/an

PET

477mm

AET

400mm

Mean slope

16,2°

Water table

521cm

Forest

26%

Crops

0%

Urban

0%

Protected

91%

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