Ontologia

Municipality · BGR

Opan

Bulgaria

CfaTemperate, no dry season, hot summer(100 %)

Species observed

89

Observations

316

Area

254km²

Ecological tissue

Sample of 28 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 Opan : 23 espèces reliées par 60 interactions GloBI sur 3 types (connectance 13.8%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
60
Connectance
0.138
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

89 distinct species · 316 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

316 obs · 5 cellules
Obs. / cellule
≥ 141
141–140
81–140
49–80
< 49

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

Climate

Mean T°

13,0°C

Annual rain

546mm

Warmest m°

29,4°C

Coldest m°

-2,8°C

Elevation: 159 m on average (min 114 m, max 183 m)

Bioclimatic detailsExpert
Annual mean temp.
13,0°C
Annual rain
546mm
Warmest month
29,4°C
Coldest month
-2,8°C
Mean alt.
159m
Min
114m
Max
183m
Std. dev.
12m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate

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

Soil & lithology

pH H₂O

7,0

Org. C

20,9g/kg

Clay

43,9%

Sand

16,9%

Silt

39,1%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,9
Org. C
33,7g/kg
Clay
42,1%
Sand
17,9%
Silt
40,0%
5–15 cm
pH H₂O
7,1
Org. C
16,7g/kg
Clay
43,5%
Sand
17,2%
Silt
39,3%
15–30 cm
pH H₂O
7,0
Org. C
12,4g/kg
Clay
46,2%
Sand
15,8%
Silt
38,0%

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

Land cover

Forest12.9%
Crops69.9%
Built-up0.2%
Bare soil0.2%
Other (grassland, water…)16.8%

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

Hydrology5 basins · 6 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

28,6km

Lake surface here

0,84km²

Basins crossed

5

Max stream order

2

Max drainage

15 279km²

Discharge in basins

32,8m³/s

Mean precip.

578mm/an

Mean T°

12,3°C

Moisture idx

-0,44

Max snow

6%

Mean runoff

120mm/an

Mean elev. (basins)

161m

Watersheds crossing here

Lakes (6, 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

18,1%

Pesticides

6,3kg/km²

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

Protected areas3

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

Mazalat

IUCN Not Assigned

State Game Husbandries · 2002

680 km²

Reka Martinka

IUCN Not Reported

Site of Community Importance (Habitats Directive) · 2008

7 km²

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