Ontologia

Rivière· 384 segments

James River

Crosses 21 administrative regions : Beadle, Bon Homme, Brown, Cedar, Christian +16

rivière

Total length

2 437km

Max discharge

106m³/s

Max Strahler

6

Segments matched

384

River geography21 admin regions · 0 communes

Parent watershed

hybas-70804477205426 km²

21 administrative regions crossed (GADM L2)

  • Stutsman
    North Dakota · United States
    188.5 km
    in this dpt
  • Brown
    South Dakota · United States
    166.6 km
    in this dpt
  • Spink
    South Dakota · United States
    160.5 km
    in this dpt
  • Wells
    North Dakota · United States
    132.8 km
    in this dpt
  • Beadle
    South Dakota · United States
    123.9 km
    in this dpt
  • Dickey
    North Dakota · United States
    119.8 km
    in this dpt
  • Hutchinson
    South Dakota · United States
    117.4 km
    in this dpt
  • Yankton
    South Dakota · United States
    110.4 km
    in this dpt
  • Stone
    Missouri · United States
    108.4 km
    in this dpt
  • Sanborn
    South Dakota · United States
    97.7 km
    in this dpt
  • Foster
    North Dakota · United States
    85.6 km
    in this dpt
  • Lamoure
    North Dakota · United States
    78.5 km
    in this dpt
  • Greene
    Missouri · United States
    69.1 km
    in this dpt
  • Hanson
    South Dakota · United States
    62.6 km
    in this dpt
  • Webster
    Missouri · United States
    56.4 km
    in this dpt
  • Eddy
    North Dakota · United States
    45.3 km
    in this dpt
  • Christian
    Missouri · United States
    39.2 km
    in this dpt
  • Davison
    South Dakota · United States
    31.5 km
    in this dpt
  • Bon Homme
    South Dakota · United States
    5.3 km
    in this dpt
  • Sargent
    North Dakota · United States
    0.9 km
    in this dpt
  • Cedar
    Nebraska · United States
    0.0 km
    in this dpt

30 intersecting protected areas

21 more protected areas

1 page = 1 named river (aggregation of 384 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

9 distinct species · 9 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 3 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 James River : 2 espèces reliées par 3 interactions GloBI sur 2 types (connectance 100.0%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
3
Interactions affichées
3
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

2 437km

Max discharge

106,0m³/s

Max Strahler

6

Segments matched

384

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