Ontologia

HydroBASINS lev08 watershed · #2080568380

Bassin de Dunărea - Дунав

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 29 administrative regions across 2 countries : Albesti, Alexandru Odobescu, Alfatar, Calarasi, Ceacu +24

6% lakePfafstetter: 22733070

Sub-basin area

2 326,5km²

Upstream area

674 119,7km²

Discharge

5 940,64m³/s

Mean elev.

94m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Canal Lebada111 km²

▲ Receives from 2 basins

29 dept-equivalent regions (GADM L2)

21 more

30 intersecting protected areas

  • Karakuz

    IUCN Not Assigned

    State Game Husbandries

    389.85 km² overlap

  • Ludogorie

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    261.20 km² overlap

  • Ludogorie

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    145.59 km² overlap

  • Palamara

    IUCN Not Assigned

    State Game Husbandries

    64.51 km² overlap

  • Ludogorie - Srebarna

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    52.27 km² overlap

  • Iezerul Călărași

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    50.07 km² overlap

  • Oltenița - Mostiștea - Chiciu

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    35.79 km² overlap

  • Dunăre - Ostroave

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    29.80 km² overlap

  • Canaralele Dunării

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    29.80 km² overlap

21 more protected areas

  • Srébarna

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    14.65 km² overlap

  • Srebarna

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    14.49 km² overlap

  • Srebarna

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    14.49 km² overlap

  • Réserve Srébarna

    IUCN Not Applicable

    UNESCO-MAB Biosphere Reserve

    11.28 km² overlap

  • Srebarna

    IUCN IV

    Managed Reserve

    8.92 km² overlap

  • Lacul Gălățui

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    8.14 km² overlap

  • Ciocănești - Dunăre

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    8.01 km² overlap

  • Srebarna Nature Reserve

    IUCN Not Applicable

    World Heritage Site (natural or mixed)

    6.40 km² overlap

  • Ostrov Chayka

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    5.06 km² overlap

  • Pelikanite

    IUCN VI

    Protected Site

    4.20 km² overlap

  • Esetrite - Vetren

    IUCN VI

    Protected Site

    2.88 km² overlap

  • Pozharevo - Garvan

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    2.65 km² overlap

  • Ostrovul Ciocănești

    IUCN IV

    Nature reserve

    2.14 km² overlap

  • Karakuz

    IUCN VI

    Protected Site

    0.74 km² overlap

  • Harsovska reka

    IUCN Not Reported

    Special Areas of Conservation (Habitats Directive)

    0.66 km² overlap

  • Harsovska reka

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.51 km² overlap

  • Ostrovul Haralambie

    IUCN IV

    Nature reserve

    0.40 km² overlap

  • Pametnika

    IUCN VI

    Protected Site

    0.34 km² overlap

  • Medjit Tabia

    IUCN VI

    Protected Site

    0.15 km² overlap

  • Oltenița - Ulmeni

    IUCN Not Reported

    Special Protection Area (Birds Directive)

    0.07 km² overlap

  • Nahodishte na cherven bozhur

    IUCN VI

    Protected Site

    0.05 km² overlap

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

Species present

1 141 distinct species · 33 562 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

33 562 obs · 60 cellules
Obs. / cellule
≥ 15 716
452–15 715
83–451
32–82
< 32

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

Ecological tissue

Sample of 34 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 Dunărea - Дунав : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 76 interactions GloBI sur 3 types (connectance 13.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
76
Connectance
0.136
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°

11,1°C

Annual rain

531mm

Moisture idx (CMI)

-0,43

Runoff

132mm/an

PET

929mm

AET

455mm

Mean slope

1,5°

Water table

181cm

Forest

5%

Crops

69%

Urban

6%

Protected

15%

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