Ruisseau· 2 segments
Hammergraben
Crosses 4 administrative regions : Cottbus, Goslar, Harz, Spree-Neiße
Total length
73km
Max discharge
1m³/s
Max Strahler
2
Segments matched
2
River geography4 admin regions · 0 communes
4 administrative regions crossed (GADM L2)
- HarzSachsen-Anhalt · Germany10.8 kmin this dpt
- CottbusBrandenburg · Germany2.8 kmin this dpt
- Spree-NeißeBrandenburg · Germany2.7 kmin this dpt
- GoslarNiedersachsen · Germany0.5 kmin this dpt
15 intersecting protected areas
Spreewald und Lieberoser Endmoräne
IUCN Not ReportedSpecial Protection Area (Birds Directive)
Landscape Protection Area
Harz (Landkreis Goslar)
IUCN VLandscape Protection Area
Nature monuments
Peitzer Teiche
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Nature Reserve
Landscape Protection Area
Harzer Bachtäler
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Harzer Bachtäler
IUCN IVNature Reserve
6 more protected areassorted by area
Peitzer Ponds
IUCN VWetland of International Importance (Ramsar Site)
Biotopverbund Spreeaue
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Biotopverbund Spreeaue
IUCN IVNature Reserve
Nature Reserve
Bachtäler im Oberharz um Braunlage
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Bergwiesen bei Königshütte
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
627 distinct species · 1 437 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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).
Indicateurs du tissu écologique
Tissu écologique de Hammergraben : 18 espèces reliées par 91 interactions GloBI sur 5 types (connectance 18.3%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology (HydroRIVERS v10)
Total length
73km
Max discharge
1,0m³/s
Max Strahler
2
Segments matched
2
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.