Ontologia

Municipality · BGR

Opaka

Bulgaria

DfaCold, no dry season, hot summer(69 %)

Species observed

98

Observations

315

Area

150,6km²

Ecological tissue

Sample of 27 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 Opaka : 18 espèces reliées par 54 interactions GloBI sur 4 types (connectance 15.4%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
54
Connectance
0.154
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

98 distinct species · 315 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

315 obs · 4 cellules
Obs. / cellule
≥ 135
135–134
79–134
79–78
< 79

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

Climate

Mean T°

11,4°C

Annual rain

650mm

Warmest m°

26,7°C

Coldest m°

-3,8°C

Elevation: 271 m on average (min 147 m, max 376 m)

Bioclimatic detailsExpert
Annual mean temp.
11,4°C
Annual rain
650mm
Warmest month
26,7°C
Coldest month
-3,8°C
Mean alt.
271m
Min
147m
Max
376m
Std. dev.
64m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(69 %)Cold

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

Soil & lithology

pH H₂O

6,7

Org. C

27,8g/kg

Clay

40,7%

Sand

8,6%

Silt

50,6%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,7
Org. C
48,5g/kg
Clay
41,0%
Sand
8,6%
Silt
50,4%
5–15 cm
pH H₂O
6,7
Org. C
18,1g/kg
Clay
41,9%
Sand
8,3%
Silt
49,8%
15–30 cm
pH H₂O
6,7
Org. C
16,7g/kg
Clay
39,3%
Sand
9,0%
Silt
51,6%

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

Land cover

Forest24.9%
Crops56.1%
Built-up0.5%
Bare soil0.3%
Other (grassland, water…)18.2%

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

Hydrology2 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

29,2km

Basins crossed

2

Max stream order

3

Max drainage

1 543km²

Discharge in basins

0,6m³/s

Mean precip.

625mm/an

Mean T°

10,3°C

Moisture idx

-0,34

Max snow

10%

Mean runoff

144mm/an

Mean elev. (basins)

276m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,4nW

Built-up

48,7%

Pesticides

5,8kg/km²

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

Protected areas5

IUCN Not Assigned · 2IUCN Not Reported · 2IUCN VI · 1

Dunav

IUCN Not Assigned

State Game Husbandries · 2002

1 435 km²

Cherni Lom

IUCN Not Assigned

State Game Husbandries · 2002

1 092 km²

Lomovete

IUCN Not Reported

Special Protection Area (Birds Directive) · 2007

335 km²

Lomovete

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2020

325 km²

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