Ontologia

Ruisseau· 5 segments

Schwarzer Graben

Crosses 4 administrative regions : Cottbus, Görlitz, Nordsachsen, Spree-Neiße

ruisseau

Total length

144km

Max discharge

2,1m³/s

Max Strahler

3

Segments matched

5

River geography4 admin regions · 0 communes

Parent watershed

hybas-20803798502428 km²

4 administrative regions crossed (GADM L2)

  • Görlitz
    Sachsen · Germany
    18.0 km
    in this dpt
  • Cottbus
    Brandenburg · Germany
    7.9 km
    in this dpt
  • Nordsachsen
    Sachsen · Germany
    7.5 km
    in this dpt
  • Spree-Neiße
    Brandenburg · Germany
    4.6 km
    in this dpt

20 intersecting protected areas

11 more protected areas

1 page = 1 named river (aggregation of 5 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

808 distinct species · 1 536 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 35 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 Schwarzer Graben : 21 espèces reliées par 141 interactions GloBI sur 6 types (connectance 22.4%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
141
Connectance
0.224
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

144km

Max discharge

2,1m³/s

Max Strahler

3

Segments matched

5

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