Fleuve· 6 segments
Ranna
Crosses 3 administrative regions : Passau, Rohrbach, Schärding
Total length
32km
Max discharge
1 399,6m³/s
Max Strahler
7
Segments matched
6
River geography3 admin regions · 0 communes
3 administrative regions crossed (GADM L2)
6 intersecting protected areas
Oberes Donau- und Aschachtal
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Moore im Bereich Sonnen-Wegscheid mit Abschnitten des Rannatals
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive)
Rannatal
IUCN Not ReportedSite of Community Importance (Habitats Directive)
Rannatal
IUCN IVNature Reserve
Landscape Protection Area
Tal des Kleinen Kößlbaches
IUCN IVNature Reserve
1 page = 1 named river (aggregation of 6 HydroRIVERS v10 segments). Spatial join cached after first hit.
Species present
1 537 distinct species · 5 044 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 31 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 Ranna : 24 espèces reliées par 69 interactions GloBI sur 4 types (connectance 14.8%, filtre Serrano α=0.2). 7 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
32km
Max discharge
1 399,6m³/s
Max Strahler
7
Segments matched
6
HydroRIVERS v1.0 (Lehner et al. 2019) aggregated by name + main_riv → 1 entity = 1 named river.