Ontologia

Municipality · BGR

Roman

Bulgaria

CfaTemperate, no dry season, hot summer(83 %)

Species observed

377

Observations

1 994

Area

320,7km²

Ecological tissue

Sample of 36 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 Roman : 29 espèces reliées par 76 interactions GloBI sur 3 types (connectance 11.4%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
76
Connectance
0.114
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

377 distinct species · 1 994 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 994 obs · 8 cellules
Obs. / cellule
≥ 867
867–866
321–866
151–320
< 151

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

Climate

Mean T°

11,5°C

Annual rain

674mm

Warmest m°

26,9°C

Coldest m°

-4,8°C

Elevation: 322 m on average (min 158 m, max 804 m)

Bioclimatic detailsExpert
Annual mean temp.
11,5°C
Annual rain
674mm
Warmest month
26,9°C
Coldest month
-4,8°C
Mean alt.
322m
Min
158m
Max
804m
Std. dev.
117m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(83 %)Temperate

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

Soil & lithology

pH H₂O

6,4

Org. C

28,5g/kg

Clay

35,4%

Sand

20,8%

Silt

43,8%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,4
Org. C
48,5g/kg
Clay
34,9%
Sand
21,8%
Silt
43,3%
5–15 cm
pH H₂O
6,4
Org. C
20,9g/kg
Clay
35,8%
Sand
21,1%
Silt
43,1%
15–30 cm
pH H₂O
6,4
Org. C
16,1g/kg
Clay
35,5%
Sand
19,6%
Silt
44,9%

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

Land cover

Forest48.7%
Crops27.8%
Built-up0.3%
Bare soil0.2%
Other (grassland, water…)23.0%

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

Hydrology3 basins · 0 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

97,3km

Basins crossed

3

Max stream order

5

Max drainage

8 511km²

Discharge in basins

5,8m³/s

Mean precip.

633mm/an

Mean T°

10,1°C

Moisture idx

-0,32

Max snow

11%

Mean runoff

155mm/an

Mean elev. (basins)

446m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

24,8%

Pesticides

5,9kg/km²

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

Protected areas10

IUCN III · 7IUCN Not Reported · 3

Karlukovo

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2021

288 km²

Karlukovski karst

IUCN Not Reported

Special Protection Area (Birds Directive) · 2007

142 km²

Bebresh

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2020

68 km²

Complete list

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