Ontologia

Commune · ROU

Marasu

Romania

DfaCold, no dry season, hot summer(100 %)

Species observed

421

Observations

530

Area

189km²

Ecological tissue

Sample of 25 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 Marasu : 20 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 42 interactions GloBI sur 3 types (connectance 12.9%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
42
Connectance
0.129
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

421 distinct species · 530 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

530 obs · 5 cellules
Obs. / cellule
≥ 428
428–427
57–427
32–56
< 32

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

Climate

Mean T°

11,9°C

Annual rain

447mm

Warmest m°

28,3°C

Coldest m°

-3,3°C

Elevation: 5 m on average (min 3 m, max 11 m)

Bioclimatic detailsExpert
Annual mean temp.
11,9°C
Annual rain
447mm
Warmest month
28,3°C
Coldest month
-3,3°C
Mean alt.
5m
Min
3m
Max
11m
Std. dev.
1m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(100 %)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

30,4g/kg

Clay

35,1%

Sand

11,8%

Silt

53,0%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
45,6g/kg
Clay
35,3%
Sand
12,0%
Silt
52,8%
5–15 cm
pH H₂O
7,6
Org. C
27,2g/kg
Clay
36,1%
Sand
11,5%
Silt
52,4%
15–30 cm
pH H₂O
7,6
Org. C
18,4g/kg
Clay
34,0%
Sand
12,0%
Silt
53,9%

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

Land cover

Forest4.6%
Crops76.1%
Built-up0.2%
Bare soil0.7%
Other (grassland, water…)18.4%

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

Hydrology3 basins · 1 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

18,7km

Lake surface here

0,09km²

Basins crossed

3

Max stream order

2

Max drainage

696 723km²

Discharge in basins

8,2m³/s

Mean precip.

457mm/an

Mean T°

11,1°C

Moisture idx

-0,50

Max snow

8%

Mean runoff

133mm/an

Mean elev. (basins)

47m

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

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

17,2%

Pesticides

5,7kg/km²

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

Protected areas5

IUCN Not Reported · 4IUCN V · 1

Brațul Măcin

IUCN Not Reported

Site of Community Importance (Habitats Directive) · 2008

104 km²

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