Ontologia

HydroBASINS lev08 watershed · #2080488190

Bassin de Dunaj / Duna

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 13 administrative regions across 3 countries : Bratislava I, Bratislava II, Bratislava III, Bratislava IV, Bratislava V +8

51% lakePfafstetter: 22795000

Sub-basin area

716,1km²

Upstream area

131 624,9km²

Discharge

2 081,49m³/s

Mean elev.

137m

Administrative coverage

Hydrographic chain

▲ Receives from 2 basins

13 dept-equivalent regions (GADM L2)

5 more

30 intersecting protected areas

  • Dunajské luhy

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    131.29 km² overlap

  • Dunajské luhy

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    129.95 km² overlap

  • Szigetköz

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    97.97 km² overlap

  • Szigetköz

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    97.97 km² overlap

  • Dunajské luhy

    IUCN V

    Protected Landscape Area; second level of protection

    89.32 km² overlap

  • Szigetközi Tájvédelmi Körzet

    IUCN V

    Landscape Protection Area

    54.18 km² overlap

  • Dunajské luhy

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    52.61 km² overlap

  • Malé Karpaty

    IUCN V

    Protected Landscape Area; second level of protection

    30.38 km² overlap

  • Donau-March-Thaya-Auen

    IUCN II

    Wetland of International Importance (Ramsar Site)

    15.96 km² overlap

21 more protected areas

  • Hundsheimer Berge

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    11.63 km² overlap

  • Sysľovské polia

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    9.31 km² overlap

  • Biskupické luhy

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    9.17 km² overlap

  • Bratislavské luhy

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    9.16 km² overlap

  • Ostrovné lúčky

    IUCN IV

    Protected Site / Private Protected Site

    6.74 km² overlap

  • Ostrovné lúčky

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    6.74 km² overlap

  • Kľúčovské rameno

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    6.71 km² overlap

  • Hrušov

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    4.89 km² overlap

  • Donau-March-Thaya-Auen

    IUCN V

    Landscape Protection Area

    4.75 km² overlap

  • Číčovské luhy

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    4.36 km² overlap

  • Pečniansky les

    IUCN IV

    Protected Site / Private Protected Site

    2.95 km² overlap

  • Vydrica

    IUCN IV

    Nature Reserve / Private Nature Reserve

    2.77 km² overlap

  • Sihoť

    IUCN IV

    Protected Site / Private Protected Site

    2.34 km² overlap

  • Malé Karpaty

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    1.96 km² overlap

  • Devínska Kobyla

    IUCN IV

    National Nature Reserve

    1.73 km² overlap

  • Devínska Kobyla

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.73 km² overlap

  • Donau-Auen östlich von Wien

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    1.48 km² overlap

  • Foráš

    IUCN Ia

    Nature Reserve / Private Nature Reserve

    1.16 km² overlap

  • Parndorfer Platte - Heideboden

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.95 km² overlap

  • Kopáčsky ostrov

    IUCN Ia

    Nature Reserve / Private Nature Reserve

    0.82 km² overlap

  • Jarovská bažantnica

    IUCN IV

    Protected Site / Private Protected Site

    0.78 km² overlap

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

Species present

5 382 distinct species · 142 852 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

142 852 obs · 19 cellules
Obs. / cellule
≥ 38 128
19 245–38 127
12 153–19 244
2 883–12 152
< 2 883

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

Ecological tissue

Sample of 32 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 Dunaj / Duna : 21 espèces reliées par 81 interactions GloBI sur 4 types (connectance 16.3%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
81
Connectance
0.163
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°

9,9°C

Annual rain

601mm

Moisture idx (CMI)

-0,32

Runoff

101mm/an

PET

886mm

AET

512mm

Mean slope

1,1°

Water table

71cm

Forest

25%

Crops

54%

Urban

15%

Protected

26%

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