Ontologia

Commune · ROU

Mahmudia

Romania

CfaTemperate, no dry season, hot summer(90 %)

Species observed

446

Observations

9 116

Area

126,3km²

Ecological tissue

Sample of 37 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 Mahmudia : 29 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 59 interactions GloBI sur 3 types (connectance 8.4%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
59
Connectance
0.084
Patrimoniales
3
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

446 distinct species · 9 116 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 116 obs · 2 cellules
Obs. / cellule
≥ 6 384
6 384–6 383
6 384–6 383
6 384–6 383
< 6 384

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

Climate

Mean T°

11,7°C

Annual rain

418mm

Warmest m°

27,3°C

Coldest m°

-2,5°C

Elevation: 33 m on average (min -0 m, max 130 m)

Bioclimatic detailsExpert
Annual mean temp.
11,7°C
Annual rain
418mm
Warmest month
27,3°C
Coldest month
-2,5°C
Mean alt.
33m
Min
-0m
Max
130m
Std. dev.
38m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(90 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

7,6

Org. C

32,0g/kg

Clay

34,5%

Sand

12,0%

Silt

53,4%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
44,3g/kg
Clay
33,3%
Sand
12,3%
Silt
54,4%
5–15 cm
pH H₂O
7,7
Org. C
29,6g/kg
Clay
36,0%
Sand
11,4%
Silt
52,6%
15–30 cm
pH H₂O
7,7
Org. C
22,3g/kg
Clay
34,4%
Sand
12,4%
Silt
53,3%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest8.0%
Crops50.6%
Built-up0.4%
Bare soil1.9%
Other (grassland, water…)39.2%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology3 basins · 1 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

28,3km

Lake surface here

0,01km²

Basins crossed

3

Max stream order

2

Max drainage

2 492km²

Discharge in basins

0,0m³/s

Mean precip.

370mm/an

Mean T°

11,4°C

Moisture idx

-0,53

Max snow

6%

Mean runoff

30mm/an

Mean elev. (basins)

5m

Watersheds crossing here

Lakes (1, top by area)

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

0hab/km²

Night light

0,3nW

Built-up

37,4%

Pesticides

5,7kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas6

IUCN Not Reported · 4IUCN Not Applicable · 1IUCN IV · 1🌊 Marine · 4

Danube Delta

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 1991

6 278 km²

Delta Dunării

IUCN Not Reported

Site of Community Importance (Habitats Directive) · 2009

4 532 km²

Danube Delta

IUCN Not Applicable

World Heritage Site (natural or mixed) · 1991

3 151 km²

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN