Ontologia

HydroBASINS lev08 watershed · #7080499620

Bassin de Big Rock Creek

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 3 administrative regions : De Kalb, Kane, Kendall

Pfafstetter: 74282604

Sub-basin area

333,4km²

Upstream area

333,4km²

Discharge

3,8m³/s

Mean elev.

234m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Somonauk Creek761 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

7 intersecting protected areas

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

Species present

1 314 distinct species · 131 611 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

131 611 obs · 8 cellules
Obs. / cellule
≥ 45 558
45 558–45 557
26 568–45 557
8 286–26 567
< 8 286

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

Ecological tissue

Sample of 30 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 Rock Creek : 21 espèces reliées par 67 interactions GloBI sur 3 types (connectance 14.4%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
67
Connectance
0.144
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°

8,9°C

Annual rain

926mm

Moisture idx (CMI)

-0,07

Runoff

355mm/an

PET

1 000mm

AET

776mm

Mean slope

0,3°

Water table

15cm

Forest

11%

Crops

86%

Urban

2%

Protected

0%

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