Ontologia

Commune · FRA

Bren

France

CfaTemperate, no dry season, hot summer(71 %)

Species observed

822

Observations

7 487

Area

10,8km²

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 Bren : 25 espèces + 3 bulles famille, 67 interactions GloBI documentées sur 5 types (connectance 17.7%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
28
Interactions affichées
67
Connectance
0.177
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

822 distinct species · 7 487 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 487 obs · 1 cellules
Obs. / cellule
≥ 7 487
7 487–7 486
7 487–7 486
7 487–7 486
< 7 487

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

Climate

Mean T°

12,2°C

Annual rain

947mm

Warmest m°

26,3°C

Coldest m°

-0,5°C

Elevation: 284 m on average (min 221 m, max 341 m)

Bioclimatic detailsExpert
Annual mean temp.
12,2°C
Annual rain
947mm
Warmest month
26,3°C
Coldest month
-0,5°C
Mean alt.
284m
Min
221m
Max
341m
Std. dev.
40m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(71 %)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

29,3g/kg

Clay

22,4%

Sand

34,4%

Silt

43,2%

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

Dominant lithology: smGLiMaggregated to Drôme

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
53,1g/kg
Clay
20,7%
Sand
34,5%
Silt
44,8%
5–15 cm
pH H₂O
6,7
Org. C
18,4g/kg
Clay
21,4%
Sand
34,0%
Silt
44,6%
15–30 cm
pH H₂O
6,7
Org. C
16,3g/kg
Clay
25,0%
Sand
34,7%
Silt
40,4%

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

Land cover

Forest20.0%
Crops42.9%
Built-up1.1%
Bare soil3.2%
Other (grassland, water…)32.8%

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

Hydrology3 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

3

Max drainage

54 048km²

Discharge in basins

53,2m³/s

Mean precip.

864mm/an

Mean T°

11,4°C

Moisture idx

-0,09

Max snow

6%

Mean runoff

411mm/an

Mean elev. (basins)

286m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,5nW

Built-up

114,6%

Pesticides

46,4kg/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.