Ontologia

Commune · FRA

Bourgnac

France

CfbTemperate, no dry season, warm summer(100 %)

Species observed

1 112

Observations

5 424

Area

9,2km²

Ecological tissue

Sample of 40 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 Bourgnac : 34 espèces + 6 bulles famille, 93 interactions GloBI documentées sur 4 types (connectance 11.9%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
40
Interactions affichées
93
Connectance
0.119
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

1 112 distinct species · 5 424 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 424 obs · 1 cellules
Obs. / cellule
≥ 5 424
5 424–5 423
5 424–5 423
5 424–5 423
< 5 424

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

Climate

Mean T°

13,1°C

Annual rain

859mm

Warmest m°

26,0°C

Coldest m°

2,4°C

Elevation: 104 m on average (min 76 m, max 133 m)

Bioclimatic detailsExpert
Annual mean temp.
13,1°C
Annual rain
859mm
Warmest month
26,0°C
Coldest month
2,4°C
Mean alt.
104m
Min
76m
Max
133m
Std. dev.
10m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(100 %)Temperate

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

32,4g/kg

Clay

25,5%

Sand

33,1%

Silt

41,4%

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

Dominant lithology: smGLiMaggregated to Dordogne

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
53,3g/kg
Clay
24,6%
Sand
33,0%
Silt
42,4%
5–15 cm
pH H₂O
6,7
Org. C
26,4g/kg
Clay
24,8%
Sand
33,1%
Silt
42,1%
15–30 cm
pH H₂O
6,7
Org. C
17,3g/kg
Clay
27,0%
Sand
33,1%
Silt
39,9%

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

Land cover

Forest60.9%
Crops13.8%
Built-up0.8%
Bare soil0.3%
Other (grassland, water…)24.3%

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

Hydrology1 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

3,4km

Basins crossed

1

Max stream order

2

Max drainage

3 807km²

Discharge in basins

0,3m³/s

Mean precip.

892mm/an

Mean T°

12,1°C

Moisture idx

-0,08

Max snow

3%

Mean runoff

513mm/an

Mean elev. (basins)

136m

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

78,7%

Pesticides

42,1kg/km²

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

France-specific data (Phase 2)

ZNIEFF, Natura 2000, INPN protected spaces, BNV-D pesticides, Naïades water quality, SAFRAN fine climate, BRGM lithology — Layer FR to load in Phase 2.