Ontologia

Municipality · BGR

Tvarditsa

Bulgaria

DfbCold, no dry season, warm summer(53 %)

Species observed

589

Observations

2 652

Area

464,3km²

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 Tvarditsa : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 60 interactions GloBI sur 3 types (connectance 11.4%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
60
Connectance
0.114
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

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

Species present

589 distinct species · 2 652 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 652 obs · 12 cellules
Obs. / cellule
≥ 502
488–501
346–487
179–345
< 179

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

Climate

Mean T°

9,8°C

Annual rain

751mm

Warmest m°

24,7°C

Coldest m°

-4,3°C

Elevation: 635 m on average (min 197 m, max 1 315 m)

Bioclimatic detailsExpert
Annual mean temp.
9,8°C
Annual rain
751mm
Warmest month
24,7°C
Coldest month
-4,3°C
Mean alt.
635m
Min
197m
Max
1 315m
Std. dev.
308m
Köppen-Geiger (dominant)
DfbCold, no dry season, warm summer(53 %)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

35,2g/kg

Clay

26,8%

Sand

37,7%

Silt

35,5%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
59,7g/kg
Clay
25,8%
Sand
38,6%
Silt
35,7%
5–15 cm
pH H₂O
6,1
Org. C
27,3g/kg
Clay
25,7%
Sand
39,0%
Silt
35,4%
15–30 cm
pH H₂O
6,1
Org. C
18,5g/kg
Clay
28,9%
Sand
35,7%
Silt
35,4%

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

Land cover

Forest54.9%
Crops18.4%
Built-up0.3%
Bare soil0.6%
Other (grassland, water…)25.8%

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

Hydrology4 basins · 3 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

88,0km

Lake surface here

1,26km²

Basins crossed

4

Max stream order

3

Max drainage

4 149km²

Discharge in basins

2,2m³/s

Mean precip.

676mm/an

Mean T°

9,0°C

Moisture idx

-0,24

Max snow

10%

Mean runoff

143mm/an

Mean elev. (basins)

649m

Watersheds crossing here

Lakes (3, 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

31,2%

Pesticides

6,0kg/km²

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

Protected areas7

IUCN Not Reported · 4IUCN VI · 1IUCN Ia · 1IUCN III · 1

Tvardishka planina

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2021

387 km²

Reka Tundzha 1

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2021

95 km²

Yazovir Zhrebchevo

IUCN Not Reported

Special Protection Area (Birds Directive) · 2018

25 km²

Reka Blyagornitsa

IUCN Not Reported

Site of Community Importance (Habitats Directive) · 2008

16 km²

Complete list

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