Ontologia

Rivière· 11 segments

Helme

Crosses 2 administrative regions : Mansfeld-Südharz, Nordhausen

rivière

Total length

82km

Max discharge

8,3m³/s

Max Strahler

4

Segments matched

11

River geography2 admin regions · 0 communes

Parent watershed

hybas-20803956001377 km²

2 administrative regions crossed (GADM L2)

  • Mansfeld-Südharz
    Sachsen-Anhalt · Germany
    19.6 km
    in this dpt
  • Nordhausen
    Thüringen · Germany
    18.2 km
    in this dpt

14 intersecting protected areas

5 more protected areas

1 page = 1 named river (aggregation of 11 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

971 distinct species · 1 533 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 Helme : 23 espèces reliées par 87 interactions GloBI sur 6 types (connectance 15.5%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
87
Connectance
0.155
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

82km

Max discharge

8,3m³/s

Max Strahler

4

Segments matched

11

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