Ontologia

Fleuve· 276 segments

Niobrara River

Crosses 13 administrative regions : Bon Homme, Box Butte, Boyd, Brown, Cherry +8

fleuve

Total length

939km

Max discharge

1 074,2m³/s

Max Strahler

8

Segments matched

276

River geography13 admin regions · 0 communes

Parent watershed

hybas-7080470120786 km²

13 administrative regions crossed (GADM L2)

  • Cherry
    Nebraska · United States
    309.1 km
    in this dpt
  • Sheridan
    Nebraska · United States
    187.3 km
    in this dpt
  • Sioux
    Nebraska · United States
    128.0 km
    in this dpt
  • Dawes
    Nebraska · United States
    125.9 km
    in this dpt
  • Niobrara
    Wyoming · United States
    103.9 km
    in this dpt
  • Holt
    Nebraska · United States
    88.6 km
    in this dpt
  • Keya Paha
    Nebraska · United States
    76.3 km
    in this dpt
  • Brown
    Nebraska · United States
    67.2 km
    in this dpt
  • Knox
    Nebraska · United States
    66.8 km
    in this dpt
  • Rock
    Nebraska · United States
    61.1 km
    in this dpt
  • Boyd
    Nebraska · United States
    53.9 km
    in this dpt
  • Box Butte
    Nebraska · United States
    29.8 km
    in this dpt
  • Bon Homme
    South Dakota · United States
    6.6 km
    in this dpt

25 intersecting protected areas

16 more protected areas

1 page = 1 named river (aggregation of 276 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

2 distinct species · 27 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 2 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 Niobrara River : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, filtre Serrano α=0.2).

Espèces affichées
2
Interactions affichées
1
Connectance
1.000
Patrimoniales
0
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)

Total length

939km

Max discharge

1 074,2m³/s

Max Strahler

8

Segments matched

276

HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.