Ontologia

HydroBASINS lev08 watershed · #2080450580

Bassin de Naab

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 3 administrative regions : Amberg-Sulzbach, Regensburg, Schwandorf

16% lakePfafstetter: 22799403

Sub-basin area

562,6km²

Upstream area

4 099,4km²

Discharge

38,43m³/s

Mean elev.

418m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Naab130 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

30 intersecting protected areas

21 more protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

3 673 distinct species · 112 329 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

112 329 obs · 16 cellules
Obs. / cellule
≥ 18 697
12 628–18 696
7 990–12 627
6 183–7 989
< 6 183

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Naab : 25 espèces reliées par 89 interactions GloBI sur 3 types (connectance 17.9%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
89
Connectance
0.179
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

7,9°C

Annual rain

661mm

Moisture idx (CMI)

-0,13

Runoff

294mm/an

PET

757mm

AET

552mm

Mean slope

3,3°

Water table

282cm

Forest

54%

Crops

36%

Urban

9%

Protected

18%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)