Ontologia

Rivière· 31 segments

Naab

Crosses 6 administrative regions : Amberg-Sulzbach, Neumarkt in der Oberpfalz, Neustadt an der Waldnaab, Regensburg, Regensburg (Kreisfreie Stadt) +1

rivière

Total length

138km

Max discharge

51,2m³/s

Max Strahler

5

Segments matched

31

River geography6 admin regions · 0 communes

Parent watershed

hybas-2080450580563 km²

6 administrative regions crossed (GADM L2)

30 intersecting protected areas

21 more protected areas

1 page = 1 named river (aggregation of 31 HydroRIVERS v10 segments). Spatial join cached after first hit.

Species present

676 distinct species · 2 745 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 28 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 Naab : 21 espèces reliées par 32 interactions GloBI sur 2 types (connectance 8.5%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
28
Interactions affichées
32
Connectance
0.085
Patrimoniales
0
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

138km

Max discharge

51,2m³/s

Max Strahler

5

Segments matched

31

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