Ontologia

HydroBASINS lev08 watershed · #7080556110

Bassin de Illinois 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 6 administrative regions : Calhoun, Greene, Morgan, Pike, Sangamon +1

2% lakePfafstetter: 74282150

Sub-basin area

1 710,1km²

Upstream area

68 744,9km²

Discharge

803,13m³/s

Mean elev.

179m

Administrative coverage

Hydrographic chain

Drains into

Receives from 2 basins

6 dept-equivalent regions (GADM L2)

7 intersecting protected areas

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

Species present

1 207 distinct species · 51 959 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

51 959 obs · 46 cellules
Obs. / cellule
≥ 19 914
1 598–19 913
662–1 597
370–661
< 370

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

Ecological tissue

Sample of 36 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 Illinois River : 29 espèces reliées par 69 interactions GloBI sur 3 types (connectance 11.0%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
69
Connectance
0.110
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°

11,4°C

Annual rain

937mm

Moisture idx (CMI)

-0,15

Runoff

263mm/an

PET

1 104mm

AET

792mm

Mean slope

0,9°

Water table

75cm

Forest

10%

Crops

61%

Urban

1%

Protected

1%

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