Ontologia

HydroBASINS lev08 watershed · #2080475620

Bassin de Melk

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 : Melk, Sankt Pölten Land, Scheibbs

Pfafstetter: 22797036

Sub-basin area

289,7km²

Upstream area

289,7km²

Discharge

5,53m³/s

Mean elev.

368m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Weitenbach247 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

2 322 distinct species · 4 983 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 983 obs · 8 cellules
Obs. / cellule
≥ 1 003
1 003–1 002
759–1 002
708–758
< 708

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

Ecological tissue

Sample of 49 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 Melk : 37 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 73 interactions GloBI sur 5 types (connectance 6.2%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
49
Interactions affichées
73
Connectance
0.062
Patrimoniales
1
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°

8,3°C

Annual rain

773mm

Moisture idx (CMI)

-0,08

Runoff

602mm/an

PET

836mm

AET

643mm

Mean slope

6,5°

Water table

294cm

Forest

57%

Crops

53%

Urban

0%

Protected

1%

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