Ontologia

Commune · FRA

Brest

France

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

Species observed

2 190

Observations

24 045

Area

49,4km²

Ecological tissue

Sample of 31 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 Brest : 18 espèces reliées par 89 interactions GloBI sur 6 types (connectance 16.9%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
89
Connectance
0.169
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

2 190 distinct species · 24 045 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

24 045 obs · 1 cellules
Obs. / cellule
≥ 24 045
24 045–24 044
24 045–24 044
24 045–24 044
< 24 045

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

Climate

Mean T°

11,9°C

Annual rain

1 051mm

Warmest m°

18,6°C

Coldest m°

6,0°C

Elevation: 54 m on average (min -15 m, max 90 m)

Bioclimatic detailsExpert
Annual mean temp.
11,9°C
Annual rain
1 051mm
Warmest month
18,6°C
Coldest month
6,0°C
Mean alt.
54m
Min
-15m
Max
90m
Std. dev.
23m
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

6,0

Org. C

40,5g/kg

Clay

18,8%

Sand

23,3%

Silt

57,9%

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

Dominant lithology: paGLiMaggregated to Finistère

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
57,3g/kg
Clay
18,1%
Sand
23,4%
Silt
58,5%
5–15 cm
pH H₂O
6,0
Org. C
37,9g/kg
Clay
18,5%
Sand
23,3%
Silt
58,1%
15–30 cm
pH H₂O
6,0
Org. C
26,2g/kg
Clay
19,7%
Sand
23,2%
Silt
57,1%

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

Land cover

Forest11.4%
Crops11.9%
Built-up11.5%
Bare soil0.3%
Other (grassland, water…)64.9%

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

Hydrology1 basins · 0 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

11,2km

Basins crossed

1

Max stream order

2

Max drainage

3 064km²

Discharge in basins

0,1m³/s

Mean precip.

1 057mm/an

Mean T°

10,9°C

Moisture idx

0,37

Max snow

8%

Mean runoff

872mm/an

Mean elev. (basins)

81m

Watersheds crossing here

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

Human pressure

Pop. density

15hab/km²

Night light

14,8nW

Built-up

1 152,5%

Pesticides

47,4kg/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.