Ontologia

Ruisseau· 3 segments

Twentymile Creek

Crosses 4 administrative regions : Bayfield, Chautauqua, Erie, Lake Erie

ruisseau

Total length

247km

Max discharge

1,2m³/s

Max Strahler

2

Segments matched

3

River geography4 admin regions · 0 communes

Parent watershed

hybas-7080478030540 km²

4 administrative regions crossed (GADM L2)

  • Chautauqua
    New York · United States
    13.5 km
    in this dpt
  • Bayfield
    Wisconsin · United States
    12.3 km
    in this dpt
  • Erie
    Pennsylvania · United States
    3.7 km
    in this dpt
  • Lake Erie
    Ohio · United States
    3.2 km
    in this dpt

2 intersecting protected areas

1 page = 1 named river (aggregation of 3 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

109 distinct species · 544 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 33 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 Twentymile Creek : 23 espèces reliées par 74 interactions GloBI sur 4 types (connectance 13.2%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
74
Connectance
0.132
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

247km

Max discharge

1,2m³/s

Max Strahler

2

Segments matched

3

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