HydroBASINS lev08 watershed · #7080523370

Bassin de East Nishnabotna 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 5 administrative regions : Cass, Fremont, Montgomery, Page, Pottawattamie

Pfafstetter: 74293803

Sub-basin area

888,9km²

Upstream area

2 893,8km²

Discharge

21,03m³/s

Mean elev.

331m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Nishnabotna River570 km²

▲ Receives from 2 basins

Bassin de Indian Creek481 km²
Bassin de East Nishnabotna River58 km²

5 dept-equivalent regions (GADM L2)

Montgomery
Iowa · United States
294.6 km²
33.1% of basin
Page
Iowa · United States
222.8 km²
25.0% of basin
Fremont
Iowa · United States
214.9 km²
24.1% of basin
Cass
Iowa · United States
106.2 km²
11.9% of basin
Pottawattamie
Iowa · United States
51.6 km²
5.8% of basin

8 intersecting protected areas

Riverton
IUCN V
Wildlife Management Area
10.73 km² overlap
Emergency Watershed Protection Program - Floodplain Easement (EWPP-FPE), Fremont, IA
IUCN V
Watershed Protection
6.94 km² overlap
Wetlands Reserve Program (WRP), Fremont, IA
IUCN V
Reserve Program
2.01 km² overlap
Emergency Wetlands Reserve Program (EWetlands Reserve Program (WRP)), Fremont, IA
IUCN V
Reserve Program
1.11 km² overlap
Anderson
IUCN V
Conservation Area
0.94 km² overlap
Anderson
IUCN V
Wildlife Area
0.81 km² overlap
Wetlands Reserve Program (WRP), Cass, IA
IUCN V
Reserve Program
0.23 km² overlap
Farm Service Agency Interest Of Ia
IUCN Not Assigned
Conservation Easement
0.12 km² overlap

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

Species present

795 distinct species · 15 248 observations

Source: GBIF Occurrence snapshot 2026-05-01.

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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de East Nishnabotna River : 24 espèces reliées par 80 interactions GloBI sur 4 types (connectance 15.2%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.151

Patrimoniales

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°

10,0°C

Annual rain

857mm

Moisture idx (CMI)

-0,21

Runoff

227mm/an

PET

1 080mm

AET

727mm

Mean slope

1,6°

Water table

137cm

Forest

Crops

82%

Urban

Protected

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