Ontologia

HydroBASINS lev08 watershed · #7080332600

Bassin de Big Fork 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 2 administrative regions : Itasca, Koochiching

19% lakePfafstetter: 71224405

Sub-basin area

729,3km²

Upstream area

2 792km²

Discharge

18,13m³/s

Mean elev.

408m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Big Fork River745 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

715 distinct species · 4 891 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 891 obs · 18 cellules
Obs. / cellule
≥ 1 643
589–1 642
279–588
171–278
< 171

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

Ecological tissue

Sample of 33 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 Big Fork River : 23 espèces reliées par 60 interactions GloBI sur 3 types (connectance 11.4%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
60
Connectance
0.114
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°

2,7°C

Annual rain

675mm

Moisture idx (CMI)

-0,18

Runoff

244mm/an

PET

823mm

AET

572mm

Mean slope

0,9°

Water table

14cm

Forest

93%

Crops

3%

Urban

0%

Protected

1%

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