Ontologia

Commune · FRA

Bras

France

CsaTemperate, dry summer, hot summer(100 %)

Species observed

2 870

Observations

55 892

Area

36,2km²

Ecological tissue

Sample of 39 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 Bras : 29 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 89 interactions GloBI sur 5 types (connectance 11.4%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
89
Connectance
0.114
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

2 870 distinct species · 55 892 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

55 892 obs · 4 cellules
Obs. / cellule
≥ 22 315
22 315–22 314
18 771–22 314
18 771–18 770
< 18 771

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

Climate

Mean T°

13,6°C

Annual rain

749mm

Warmest m°

29,2°C

Coldest m°

0,0°C

Elevation: 323 m on average (min 258 m, max 454 m)

Bioclimatic detailsExpert
Annual mean temp.
13,6°C
Annual rain
749mm
Warmest month
29,2°C
Coldest month
0,0°C
Mean alt.
323m
Min
258m
Max
454m
Std. dev.
45m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, 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

7,1

Org. C

37,9g/kg

Clay

26,7%

Sand

25,4%

Silt

47,9%

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

Dominant lithology: scGLiMaggregated to Var

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,1
Org. C
62,9g/kg
Clay
26,0%
Sand
25,8%
Silt
48,3%
5–15 cm
pH H₂O
7,2
Org. C
32,2g/kg
Clay
26,1%
Sand
25,6%
Silt
48,3%
15–30 cm
pH H₂O
7,2
Org. C
18,7g/kg
Clay
28,1%
Sand
24,8%
Silt
47,1%

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

Land cover

Forest42.9%
Crops7.6%
Built-up0.9%
Bare soil2.1%
Other (grassland, water…)46.5%

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

Hydrology2 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

10,2km

Basins crossed

2

Max stream order

3

Max drainage

691km²

Discharge in basins

0,6m³/s

Mean precip.

740mm/an

Mean T°

12,6°C

Moisture idx

-0,18

Max snow

5%

Mean runoff

442mm/an

Mean elev. (basins)

376m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

0,3nW

Built-up

87,3%

Pesticides

24,5kg/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.