Ontologia

Municipality · BGR

Alfatar

Bulgaria

DfaCold, no dry season, hot summer(65 %)

Species observed

258

Observations

766

Area

239,7km²

Ecological tissue

Sample of 35 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 Alfatar : 21 espèces reliées par 102 interactions GloBI sur 6 types (connectance 13.8%, filtre Serrano α=0.2). 18 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
102
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

258 distinct species · 766 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

766 obs · 7 cellules
Obs. / cellule
≥ 200
200–199
142–199
114–141
< 114

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

Climate

Mean T°

11,6°C

Annual rain

561mm

Warmest m°

27,1°C

Coldest m°

-3,1°C

Elevation: 168 m on average (min 80 m, max 227 m)

Bioclimatic detailsExpert
Annual mean temp.
11,6°C
Annual rain
561mm
Warmest month
27,1°C
Coldest month
-3,1°C
Mean alt.
168m
Min
80m
Max
227m
Std. dev.
28m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(65 %)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

29,5g/kg

Clay

41,4%

Sand

6,5%

Silt

52,2%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,7
Org. C
49,4g/kg
Clay
40,8%
Sand
6,5%
Silt
52,6%
5–15 cm
pH H₂O
6,7
Org. C
22,2g/kg
Clay
42,5%
Sand
6,1%
Silt
51,4%
15–30 cm
pH H₂O
6,8
Org. C
17,0g/kg
Clay
40,7%
Sand
6,8%
Silt
52,5%

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

Land cover

Forest24.9%
Crops61.4%
Built-up0.2%
Bare soil0.3%
Other (grassland, water…)13.3%

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

Hydrology2 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

44,7km

Basins crossed

2

Max stream order

4

Max drainage

674 120km²

Discharge in basins

195,8m³/s

Mean precip.

547mm/an

Mean T°

10,8°C

Moisture idx

-0,40

Max snow

9%

Mean runoff

129mm/an

Mean elev. (basins)

176m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

20,9%

Pesticides

5,8kg/km²

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

Protected areas9

IUCN Not Reported · 5IUCN Not Assigned · 2IUCN VI · 2

Ludogorie

IUCN Not Reported

Special Protection Area (Birds Directive) · 2007

914 km²

Karakuz

IUCN Not Assigned

State Game Husbandries · 2002

810 km²

Ludogorie

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2020

595 km²

Tervel

IUCN Not Assigned

State Game Husbandries · 2002

579 km²

Harsovska reka

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2020

368 km²

Harsovska reka

IUCN Not Reported

Special Protection Area (Birds Directive) · 2007

354 km²

Complete list

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