Rivière· 45 segments

West Nishnabotna River

Crosses 6 administrative regions : Carroll, Crawford, Fremont, Mills, Pottawattamie +1

rivière

Total length

208km

Max discharge

51,2m³/s

Max Strahler

Segments matched

River geography6 admin regions · 0 communes

Parent watershed

hybas-70805232704214 km²

6 administrative regions crossed (GADM L2)

Shelby
Iowa · United States
61.0 km
in this dpt
Pottawattamie
Iowa · United States
44.4 km
in this dpt
Mills
Iowa · United States
43.8 km
in this dpt
Fremont
Iowa · United States
39.3 km
in this dpt
Carroll
Iowa · United States
27.0 km
in this dpt
Crawford
Iowa · United States
3.4 km
in this dpt

9 intersecting protected areas

Emergency Watershed Protection Program - Floodplain Easement (EWPP-FPE), Fremont, IA
IUCN V
Watershed Protection
Riverton
IUCN V
Wildlife Management Area
Wetlands Reserve Program (WRP), Fremont, IA
IUCN V
Reserve Program
Wetlands Reserve Program (WRP), Carroll, IA
IUCN V
Reserve Program
Willow Slough
IUCN V
Wildlife Management Area
Ray Thomas
IUCN V
Wildlife Preserve
Upper'nish'
IUCN V
Habitat Area
Fisher
IUCN V
Wildlife Area
West Botna
IUCN V
Wildlife Area

1 page = 1 named river (aggregation of 45 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

102 distinct species · 322 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 35 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 West Nishnabotna River : 26 espèces reliées par 61 interactions GloBI sur 4 types (connectance 9.7%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.097

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydrology (HydroRIVERS v10)