Ontologia

Ruisseau· 9 segments

Grenzgraben

Crosses 11 administrative regions : Altmarkkreis Salzwedel, Anhalt-Bitterfeld, Börde, Dahme-Spreewald, Dessau-Roßlau +6

ruisseau

Total length

217km

Max discharge

4,5m³/s

Max Strahler

3

Segments matched

9

River geography11 admin regions · 0 communes

Parent watershed

hybas-2080367890376 km²

11 administrative regions crossed (GADM L2)

30 intersecting protected areas

21 more protected areas

1 page = 1 named river (aggregation of 9 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

446 distinct species · 643 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 36 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 Grenzgraben : 25 espèces reliées par 105 interactions GloBI sur 5 types (connectance 15.8%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
105
Connectance
0.158
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

217km

Max discharge

4,5m³/s

Max Strahler

3

Segments matched

9

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