HydroBASINS lev08 watershed · #7080503650
Bassin de Boyer 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 : Harrison, Pottawattamie
Sub-basin area
25,2km²
Upstream area
2 838,2km²
Discharge
16,57m³/s
Mean elev.
315m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Boyer River369 km²
- Bassin de Boyer River328 km²
2 dept-equivalent regions (GADM L2)
- PottawattamieIowa · United States19.0 km²75.4% of basin
- HarrisonIowa · United States6.2 km²24.6% of basin
1 intersecting protected areas
Loess Hills Fee
IUCN VPrivate Conservation Land
0.18 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
145 distinct species · 906 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 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 Boyer River : 28 espèces reliées par 129 interactions GloBI sur 4 types (connectance 16.5%, filtre Serrano α=0.2). 12 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°
9,9°C
Annual rain
775mm
Moisture idx (CMI)
-0,26
Runoff
174mm/an
PET
1 049mm
AET
658mm
Mean slope
1,6°
Water table
119cm
Forest
8%
Crops
79%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)