Ontologia

HydroBASINS lev08 watershed · #7080428160

Bassin de South Fork John Day 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 4 administrative regions : Crook, Grant, Harney, Wheeler

Pfafstetter: 78250244

Sub-basin area

1 578,7km²

Upstream area

1 578,9km²

Discharge

2,62m³/s

Mean elev.

1 461m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de John Day River290 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

852 distinct species · 10 536 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

10 536 obs · 42 cellules
Obs. / cellule
≥ 1 496
527–1 495
287–526
147–286
< 147

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

Ecological tissue

Sample of 39 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 John Day River : 25 espèces reliées par 122 interactions GloBI sur 5 types (connectance 15.6%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
122
Connectance
0.156
Patrimoniales
0
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°

5,5°C

Annual rain

377mm

Moisture idx (CMI)

-0,62

Runoff

61mm/an

PET

1 001mm

AET

325mm

Mean slope

10,7°

Water table

1 069cm

Forest

59%

Crops

2%

Urban

0%

Protected

6%

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