Ontologia

City · BGR

Vratsa

Bulgaria

CfaTemperate, no dry season, hot summer(74 %)

Species observed

881

Observations

43 397

Area

710,1km²

Ecological tissue

Sample of 32 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 Vratsa : 22 espèces reliées par 84 interactions GloBI sur 4 types (connectance 16.9%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
84
Connectance
0.169
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

881 distinct species · 43 397 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

43 397 obs · 19 cellules
Obs. / cellule
≥ 16 424
10 408–16 423
632–10 407
275–631
< 275

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

Climate

Mean T°

11,0°C

Annual rain

724mm

Warmest m°

26,4°C

Coldest m°

-5,1°C

Elevation: 389 m on average (min 157 m, max 1 293 m)

Bioclimatic detailsExpert
Annual mean temp.
11,0°C
Annual rain
724mm
Warmest month
26,4°C
Coldest month
-5,1°C
Mean alt.
389m
Min
157m
Max
1 293m
Std. dev.
253m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(74 %)Temperate

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

Soil & lithology

pH H₂O

6,5

Org. C

26,6g/kg

Clay

38,1%

Sand

19,6%

Silt

42,3%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,5
Org. C
42,6g/kg
Clay
37,6%
Sand
20,1%
Silt
42,3%
5–15 cm
pH H₂O
6,6
Org. C
20,3g/kg
Clay
38,6%
Sand
19,5%
Silt
41,9%
15–30 cm
pH H₂O
6,5
Org. C
16,9g/kg
Clay
38,2%
Sand
19,1%
Silt
42,7%

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

Land cover

Forest27.1%
Crops51.2%
Built-up0.7%
Bare soil0.3%
Other (grassland, water…)20.8%

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

Hydrology4 basins · 8 lakes · 9 rivers

Hydrology metrics for this exact territory

Stream length here

110,5km

Lake surface here

3,44km²

Basins crossed

4

Max stream order

3

Max drainage

5 117km²

Discharge in basins

4,2m³/s

Mean precip.

653mm/an

Mean T°

10,5°C

Moisture idx

-0,30

Max snow

12%

Mean runoff

125mm/an

Mean elev. (basins)

369m

Watersheds crossing here

Lakes (8, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,7nW

Built-up

67,5%

Pesticides

5,8kg/km²

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

Protected areas19

IUCN VI · 6IUCN III · 6IUCN Not Reported · 5IUCN V · 1IUCN Ia · 1

Vrachanski Balkan

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2020

360 km²

Vrachanski Balkan

IUCN Not Reported

Special Protection Area (Birds Directive) · 2007

309 km²

Padinite

IUCN VI

Protected Site · 2007

6 km²

Kalenska peshtera

IUCN Not Reported

Site of Community Importance (Habitats Directive) · 2008

4 km²

Complete list

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