Danube Delta
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 1991
6 278 km²
Commune · ROU
Tulcea
Romania
DfaCold, no dry season, hot summer(57 %)
Species observed
844
Observations
7 407
Area
198,6km²
Ecological tissue
Sample of 35 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 Tulcea : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 63 interactions GloBI sur 3 types (connectance 10.0%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
36
Interactions affichées
63
Connectance
0.100
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
844 distinct species · 7 407 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
11,4°C
Annual rain
462mm
Warmest m°
27,3°C
Coldest m°
-3,0°C
Elevation: 61 m on average (min 1 m, max 179 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
11,4°C
Annual rain
462mm
Warmest month
27,3°C
Coldest month
-3,0°C
Mean alt.
61m
Min
1m
Max
179m
Std. dev.
53m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(57 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,5
Org. C
30,3g/kg
Clay
37,8%
Sand
10,5%
Silt
51,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
7,4
Org. C
45,6g/kg
Clay
36,4%
Sand
10,6%
Silt
52,9%
5–15 cm
pH H₂O
7,5
Org. C
26,4g/kg
Clay
39,5%
Sand
10,0%
Silt
50,6%
15–30 cm
pH H₂O
7,6
Org. C
19,0g/kg
Clay
37,6%
Sand
10,9%
Silt
51,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest8.9%
Crops54.5%
Built-up1.4%
Bare soil1.2%
Other (grassland, water…)33.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology5 basins · 10 lakes · 3 rivers
Hydrology metrics for this exact territory
Stream length here
22,5km
Lake surface here
1,59km²
Basins crossed
5
Max stream order
2
Max drainage
782 506km²
Discharge in basins
459,1m³/s
Mean precip.
398mm/an
Mean T°
11,2°C
Moisture idx
-0,52
Max snow
7%
Mean runoff
41mm/an
Mean elev. (basins)
26m
Watersheds crossing here
- Bassin de Dunărea (Brațul Sfântu Gheorghe)sub-area2 492,2 km²overlap105.20 km²53%
- Bassin de Canalul Lipovenilorsub-area217,5 km²overlap46.61 km²23%
- Bassin de Dunărea - Дунайsub-area563,7 km²overlap27.55 km²14%
- Bassin de Telițasub-area286,4 km²overlap12.66 km²6%
- Bassin de рукав Іванешть — Brațul Ivăneștisub-area342,9 km²overlap6.61 km²3%
Lakes (10, top by area)
- Lacul Lungaarea2 km²avg depth1.2 m
- Lac 1359391area0,9 km²avg depth1.8 m
- Lac 1359246area0,6 km²avg depth1.2 m
- Lac 1359328area0,6 km²avg depth2.0 m
- Lac 1359605area0,3 km²avg depth4.8 m
- Lac 1359461area0,3 km²avg depth1.9 m
- Lac 1359530area0,3 km²avg depth3.7 m
- Lac 1359428area0,2 km²avg depth1.5 m
- Lac 1359320area0,1 km²avg depth1.0 m
1 more lakes
Rivers / streams (3, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
2,7nW
Built-up
144,2%
Pesticides
6,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas6
IUCN Not Reported · 5IUCN Not Applicable · 1🌊 Marine · 4
Delta Dunării și Complexul Razim - Sinoie
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2007
5 078 km²
Delta Dunării
IUCN Not ReportedSite of Community Importance (Habitats Directive) · 2009
4 532 km²
Danube Delta
IUCN Not ApplicableWorld Heritage Site (natural or mixed) · 1991
3 151 km²
Beștepe - Mahmudia
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2007
37 km²
Dealurile Agighiolului
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2022
15 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN