Ontologia

Commune · ROU

Derna

Romania

DfbCold, no dry season, warm summer(85 %)

Species observed

11

Observations

21

Area

49,2km²

Partial data for this territory

Few observations recorded here. Real biodiversity is likely richer.

Ecological tissue

Sample of 2 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 Derna : 2 espèces reliées par 1 interaction GloBI sur 1 type (connectance 100.0%, filtre Serrano α=0.2).

Espèces affichées
2
Interactions affichées
1
Connectance
1.000
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Species present

11 distinct species · 21 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

21 obs · 1 cellules
Obs. / cellule
≥ 21
21–20
21–20
21–20
< 21

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

Climate

Mean T°

10,4°C

Annual rain

697mm

Warmest m°

25,6°C

Coldest m°

-4,4°C

Elevation: 244 m on average (min 153 m, max 546 m)

Bioclimatic detailsExpert
Annual mean temp.
10,4°C
Annual rain
697mm
Warmest month
25,6°C
Coldest month
-4,4°C
Mean alt.
244m
Min
153m
Max
546m
Std. dev.
85m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(85 %)Cold

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

Soil & lithology

pH H₂O

6,1

Org. C

25,6g/kg

Clay

44,8%

Sand

22,6%

Silt

32,6%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
43,0g/kg
Clay
42,2%
Sand
22,1%
Silt
35,7%
5–15 cm
pH H₂O
6,1
Org. C
19,7g/kg
Clay
46,1%
Sand
17,5%
Silt
36,4%
15–30 cm
pH H₂O
6,2
Org. C
14,1g/kg
Clay
46,1%
Sand
28,2%
Silt
25,8%

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

Land cover

Forest44.7%
Crops25.5%
Built-up0.5%
Bare soil0.7%
Other (grassland, water…)28.6%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

5,0km

Basins crossed

1

Max stream order

1

Max drainage

7 872km²

Discharge in basins

0,2m³/s

Mean precip.

599mm/an

Mean T°

10,2°C

Moisture idx

-0,34

Max snow

7%

Mean runoff

114mm/an

Mean elev. (basins)

145m

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

0hab/km²

Night light

0,5nW

Built-up

49,2%

Pesticides

5,4kg/km²

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

Protected areas1

IUCN Not Reported · 1

Muntele Șes

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2022

350 km²

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