Ontologia

Rivière· 21 segments

Elm River

Crosses 4 administrative regions : Brown, Dickey, McPherson, Wayne

rivière

Total length

408km

Max discharge

10,2m³/s

Max Strahler

5

Segments matched

21

River geography4 admin regions · 0 communes

Parent watershed

hybas-7080396550232 km²

4 administrative regions crossed (GADM L2)

  • Brown
    South Dakota · United States
    94.0 km
    in this dpt
  • Dickey
    North Dakota · United States
    48.9 km
    in this dpt
  • Wayne
    Illinois · United States
    11.7 km
    in this dpt
  • McPherson
    South Dakota · United States
    0.5 km
    in this dpt

7 intersecting protected areas

1 page = 1 named river (aggregation of 21 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

17 distinct species · 20 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 12 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 Elm River : 11 espèces reliées par 11 interactions GloBI sur 2 types (connectance 16.7%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
12
Interactions affichées
11
Connectance
0.167
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

408km

Max discharge

10,2m³/s

Max Strahler

5

Segments matched

21

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