Ontologia

Municipality · BGR

Petrich

Bulgaria

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

Species observed

2 284

Observations

16 420

Area

698,2km²

Ecological tissue

Sample of 31 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 Petrich : 22 espèces reliées par 60 interactions GloBI sur 6 types (connectance 12.1%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
60
Connectance
0.121
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

2 284 distinct species · 16 420 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

16 420 obs · 19 cellules
Obs. / cellule
≥ 4 948
3 164–4 947
843–3 163
363–842
< 363

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

Climate

Mean T°

12,7°C

Annual rain

537mm

Warmest m°

27,5°C

Coldest m°

-2,9°C

Elevation: 588 m on average (min 68 m, max 1 741 m)

Bioclimatic detailsExpert
Annual mean temp.
12,7°C
Annual rain
537mm
Warmest month
27,5°C
Coldest month
-2,9°C
Mean alt.
588m
Min
68m
Max
1 741m
Std. dev.
436m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(69 %)Temperate

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

Soil & lithology

pH H₂O

6,8

Org. C

28,4g/kg

Clay

22,2%

Sand

49,0%

Silt

28,7%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,8
Org. C
50,5g/kg
Clay
20,5%
Sand
50,2%
Silt
29,4%
5–15 cm
pH H₂O
6,9
Org. C
19,3g/kg
Clay
19,8%
Sand
51,6%
Silt
28,6%
15–30 cm
pH H₂O
6,9
Org. C
15,4g/kg
Clay
26,4%
Sand
45,3%
Silt
28,3%

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

Land cover

Forest39.2%
Crops20.0%
Built-up0.7%
Bare soil1.4%
Other (grassland, water…)38.7%

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

Hydrology5 basins · 0 lakes · 12 rivers

Hydrology metrics for this exact territory

Stream length here

146,2km

Basins crossed

5

Max stream order

5

Max drainage

12 746km²

Discharge in basins

15,6m³/s

Mean precip.

516mm/an

Mean T°

10,9°C

Moisture idx

-0,46

Max snow

16%

Mean runoff

172mm/an

Mean elev. (basins)

693m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,6nW

Built-up

68,5%

Pesticides

10,5kg/km²

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

Protected areas26

IUCN VI · 11IUCN Not Reported · 9IUCN Ia · 2IUCN III · 2IUCN V · 1IUCN IV · 1
Complete list

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