Ontologia

Ruisseau· 19 segments

Twelvemile Creek

Crosses 9 administrative regions : Black Hawk, Campbell, Carter, Grundy, Hanson +4

ruisseau

Total length

666km

Max discharge

1,8m³/s

Max Strahler

3

Segments matched

19

River geography9 admin regions · 0 communes

Parent watershed

hybas-7080482390851 km²

9 administrative regions crossed (GADM L2)

  • Tama
    Iowa · United States
    30.4 km
    in this dpt
  • Madison
    Missouri · United States
    25.4 km
    in this dpt
  • Campbell
    Kentucky · United States
    20.3 km
    in this dpt
  • Wright
    Minnesota · United States
    10.1 km
    in this dpt
  • Hanson
    South Dakota · United States
    7.6 km
    in this dpt
  • Carter
    Montana · United States
    6.2 km
    in this dpt
  • Hutchinson
    South Dakota · United States
    5.6 km
    in this dpt
  • Grundy
    Iowa · United States
    0.0 km
    in this dpt
  • Black Hawk
    Iowa · United States
    0.0 km
    in this dpt

2 intersecting protected areas

1 page = 1 named river (aggregation of 19 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

120 distinct species · 625 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 42 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 Twelvemile Creek : 30 espèces reliées par 88 interactions GloBI sur 4 types (connectance 10.2%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
88
Connectance
0.102
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

666km

Max discharge

1,8m³/s

Max Strahler

3

Segments matched

19

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