Fleuve· 19 segments

Ahr

Crosses 4 administrative regions : Ahrweiler, Euskirchen, Neuwied, Vulkaneifel

fleuve

Total length

86km

Max discharge

2 173,2m³/s

Max Strahler

Segments matched

River geography4 admin regions · 0 communes

Parent watershed

hybas-2080416200902 km²

4 administrative regions crossed (GADM L2)

Ahrweiler
Rheinland-Pfalz · Germany
53.4 km
in this dpt
Euskirchen
Nordrhein-Westfalen · Germany
11.5 km
in this dpt
Vulkaneifel
Rheinland-Pfalz · Germany
5.2 km
in this dpt
Neuwied
Rheinland-Pfalz · Germany
4.2 km
in this dpt

27 intersecting protected areas

Rhein-Ahr-Eifel
IUCN V
Landscape Protection Area
Ahrgebirge
IUCN Not Reported
Special Protection Area (Birds Directive)
LSG-Waelder der Kalkeifel
IUCN V
Landscape Protection Area
LSG-Dollendorfer Kalkmulde
IUCN V
Landscape Protection Area
Gewässersystem der Ahr
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Ahrtal
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Obere Kyll und Kalkmulden der Nordeifel
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Vulkaneifel
IUCN Not Reported
Special Protection Area (Birds Directive)
NSG Lampertstal und Alendorfer Kalktriften und mit Fuhrbach und Mackental
IUCN IV
Nature Reserve

18 more protected areassorted by area

LSG-Eichholzruecken
IUCN V
Landscape Protection Area
Rheinhänge zwischen Unkel und Neuwied
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
NSG Obere Ahr mit Muehlheimer Bach, Reetzer Bach und Muehlenbachsystem
IUCN IV
Nature Reserve
Vogelschutzgebiet Ahrgebirge
IUCN Not Reported
Special Protection Area (Birds Directive)
LSG-Ahrdorfer Kalkmulde
IUCN V
Landscape Protection Area
NSG Westliches Ahrgebiet
IUCN IV
Nature Reserve
NSG Schaafbachtal mit Seitentaelern und Stromberg
IUCN IV
Nature Reserve
NSG Michelsbach, Ahbach und Aulbach mit Nebenbaechen
IUCN IV
Nature Reserve
Aremberg
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
Ahrschleife bei Altenahr
IUCN IV
Nature Reserve
Ahrmündung
IUCN Not Reported
Special Protection Area (Birds Directive)
Aremberg
IUCN IV
Nature Reserve
Mündungsgebiet der Ahr
IUCN Not Reported
Special Areas of Conservation (Habitats Directive)
LSG-Mit Befristung <LP Blankenheim>
IUCN V
Landscape Protection Area
Ahbachtal
IUCN IV
Nature Reserve
Mündungsgebiet der Ahr
IUCN IV
Nature Reserve
Landskrone
IUCN IV
Nature Reserve
An der Teufelsley
IUCN IV
Nature Reserve

1 page = 1 named river (aggregation of 19 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

1 190 distinct species · 2 543 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 33 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 Ahr : 18 espèces reliées par 134 interactions GloBI sur 5 types (connectance 23.9%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

134

Connectance

0.239

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)