Ontologia

HydroBASINS lev08 watershed · #2080524780

Bassin de 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 3 administrative regions : Baja, Kalocsa, Szekszárd

2% lakePfafstetter: 22791300

Sub-basin area

73,2km²

Upstream area

203 462,9km²

Discharge

2 328,85m³/s

Mean elev.

88m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rezéti-Duna244 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

4 intersecting protected areas

  • Gemenc

    IUCN V

    Wetland of International Importance (Ramsar Site)

    30.68 km² overlap

  • Gemenc

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    30.68 km² overlap

  • Gemenc

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    30.11 km² overlap

  • Duna–Dráva Nemzeti Park

    IUCN V

    National Park

    29.77 km² overlap

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

Species present

72 distinct species · 665 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

665 obs · 2 cellules
Obs. / cellule
≥ 643
643–642
643–642
643–642
< 643

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

Ecological tissue

Sample of 26 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 Duna : 24 espèces reliées par 27 interactions GloBI sur 4 types (connectance 8.3%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
27
Connectance
0.083
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°

11,2°C

Annual rain

576mm

Moisture idx (CMI)

-0,38

Runoff

80mm/an

PET

934mm

AET

491mm

Mean slope

0,5°

Water table

27cm

Forest

39%

Crops

47%

Urban

0%

Protected

41%

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