Ontologia

Commune · FRA

Bréal-sous-Vitré

France

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

Species observed

1 180

Observations

12 807

Area

5,9km²

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 Bréal-sous-Vitré : 21 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 77 interactions GloBI sur 4 types (connectance 19.0%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
29
Interactions affichées
77
Connectance
0.190
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

1 180 distinct species · 12 807 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

12 807 obs · 3 cellules
Obs. / cellule
≥ 10 169
10 169–10 168
10 169–10 168
1 525–10 168
< 1 525

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

Climate

Mean T°

11,1°C

Annual rain

875mm

Warmest m°

22,4°C

Coldest m°

1,9°C

Elevation: 144 m on average (min 122 m, max 176 m)

Bioclimatic detailsExpert
Annual mean temp.
11,1°C
Annual rain
875mm
Warmest month
22,4°C
Coldest month
1,9°C
Mean alt.
144m
Min
122m
Max
176m
Std. dev.
15m
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

31,3g/kg

Clay

24,6%

Sand

18,0%

Silt

57,3%

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

Dominant lithology: ssGLiMaggregated to Ille-et-Vilaine

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
49,7g/kg
Clay
22,6%
Sand
19,1%
Silt
58,3%
5–15 cm
pH H₂O
6,1
Org. C
26,0g/kg
Clay
24,5%
Sand
17,3%
Silt
58,1%
15–30 cm
pH H₂O
6,1
Org. C
18,3g/kg
Clay
26,8%
Sand
17,8%
Silt
55,5%

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

Land cover

Forest18.9%
Crops47.6%
Built-up1.7%
Bare soil0.6%
Other (grassland, water…)31.2%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

1,1km

Basins crossed

2

Max stream order

1

Max drainage

1 599km²

Discharge in basins

0,1m³/s

Mean precip.

735mm/an

Mean T°

11,0°C

Moisture idx

-0,07

Max snow

6%

Mean runoff

488mm/an

Mean elev. (basins)

88m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

0,8nW

Built-up

167,9%

Pesticides

43,9kg/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.