Ruisseau· 2 segments

Hardtbach

Crosses 5 administrative regions : Bas-Rhin, Bonn, Germersheim, Rhein-Sieg-Kreis, Südliche Weinstraße

ruisseau

Total length

44km

Max discharge

0,3m³/s

Max Strahler

Segments matched

River geography5 admin regions · 3 communes

Parent watershed

hybas-20803998102002 km²

5 administrative regions crossed (GADM L2)

Rhein-Sieg-Kreis
Nordrhein-Westfalen · Germany
5.0 km
in this dpt
Bonn
Nordrhein-Westfalen · Germany
3.0 km
in this dpt
Bas-Rhin
Grand Est · France
2.9 km
in this dpt
Germersheim
Rheinland-Pfalz · Germany
0.0 km
in this dpt
Südliche Weinstraße
Rheinland-Pfalz · Germany
0.0 km
in this dpt

3 communes (L5)For countries with L5

Wissembourg1.78 km
Schleithal1.08 km
Salmbach0.00 km

18 intersecting protected areas

Bienwald und Viehstrichwiesen
IUCN Not Reported
Special Protection Area (Birds Directive)
Bienwald
IUCN V
Landscape Protection Area
Bienwaldschwemmfächer
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
LSG-In den Gemeinden Alfter und Wachtberg im Rhein-Sieg-Kreis
IUCN V
Landscape Protection Area
LSG-LP Bornheim
IUCN V
Landscape Protection Area
Vogelschutzgebiet Kottenforst-Waldville
IUCN Not Reported
Special Protection Area (Birds Directive)
NSG Kottenforst
IUCN IV
Nature Reserve
Waldreservat Kottenforst
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
La Lauter
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)

9 more protected areassorted by area

LSG-Kappesland und Messdorfer Feld
IUCN V
Landscape Protection Area
LSG-Hardtberg
IUCN V
Landscape Protection Area
Lauterniederung
IUCN IV
Nature Reserve
Cours Inférieur De La Lauter
IUCN IV
Biotope Protection Order
NSG Kottenforst
IUCN IV
Nature Reserve
LSG-Dransdorfer Weg, Bornheimer Weg und Tannenbusch Weg
IUCN V
Landscape Protection Area
NSG Tongrube Witterschlick
IUCN IV
Nature Reserve
bei der bienwaldmuehle
IUCN IV
Land acquired by a regional conservatory of natural areas
lauter
IUCN IV
Land acquired by a regional conservatory of natural areas

1 page = 1 named river (aggregation of 2 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 233 distinct species · 3 787 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 39 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Hardtbach : 28 espèces reliées par 141 interactions GloBI sur 5 types (connectance 17.2%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

141

Connectance

0.172

Patrimoniales

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)