HydroBASINS lev08 watershed · #7080496820
Bassin de Elkhorn 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 4 administrative regions : Carroll, Lee, Ogle, Whiteside
Sub-basin area
634,8km²
Upstream area
634,9km²
Discharge
5,72m³/s
Mean elev.
242m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 243.4 km²38.3% of basin
- 220.7 km²34.7% of basin
- Carroll127.9 km²20.1% of basin
- Lee43.8 km²6.9% of basin
4 intersecting protected areas
Preserve
0.17 km² overlap
Lyndon Prairie
IUCN VNature Preserve
0.02 km² overlap
Nature Preserve
0.01 km² overlap
Cemetery
0.00 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
605 distinct species · 5 653 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 48 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Elkhorn Creek : 38 espèces reliées par 87 interactions GloBI sur 5 types (connectance 7.7%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
8,6°C
Annual rain
911mm
Moisture idx (CMI)
-0,08
Runoff
284mm/an
PET
994mm
AET
768mm
Mean slope
1,2°
Water table
85cm
Forest
0%
Crops
81%
Urban
1%
Protected
0%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)