Ontologia

Ruisseau· 11 segments

Landgraben

Crosses 12 administrative regions : Appenzell Ausserrhoden, Bas-Rhin, Bergstraße, Bregenz, Breisgau-Hochschwarzwald +7

ruisseau

Total length

343km

Max discharge

2,8m³/s

Max Strahler

2

Segments matched

11

River geography12 admin regions · 9 communes

Parent watershed

hybas-2080441280822 km²

12 administrative regions crossed (GADM L2)

  • Groß-Gerau
    Hessen · Germany
    17.7 km
    in this dpt
  • Bas-Rhin
    Grand Est · France
    11.4 km
    in this dpt
  • Darmstadt-Dieburg
    Hessen · Germany
    8.2 km
    in this dpt
  • Karlsruhe
    Baden-Württemberg · Germany
    4.3 km
    in this dpt
  • Appenzell Ausserrhoden
    Appenzell Ausserrhoden · Switzerland
    3.6 km
    in this dpt
  • Breisgau-Hochschwarzwald
    Baden-Württemberg · Germany
    2.9 km
    in this dpt
  • Bregenz
    Vorarlberg · Austria
    1.1 km
    in this dpt
  • Darmstadt
    Hessen · Germany
    0.7 km
    in this dpt
  • Dornbirn
    Vorarlberg · Austria
    0.3 km
    in this dpt
  • Bergstraße
    Hessen · Germany
    0.0 km
    in this dpt
  • Rhein-Neckar-Kreis
    Baden-Württemberg · Germany
    0.0 km
    in this dpt
  • Sankt Gallen
    Sankt Gallen · Switzerland
    0.0 km
    in this dpt
9 communes (L5)

30 intersecting protected areas

21 more protected areas

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

Species present

1 975 distinct species · 21 710 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 45 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 Landgraben : 38 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 97 interactions GloBI sur 5 types (connectance 9.8%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
97
Connectance
0.098
Patrimoniales
2
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

343km

Max discharge

2,8m³/s

Max Strahler

2

Segments matched

11

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