Ontologia

Commune · FRA

Saint-Vran

France

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

Species observed

262

Observations

857

Area

28,1km²

Ecological tissue

Sample of 34 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 Saint-Vran : 22 espèces reliées par 110 interactions GloBI sur 6 types (connectance 18.5%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
110
Connectance
0.185
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

262 distinct species · 857 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

857 obs · 1 cellules
Obs. / cellule
≥ 857
857–856
857–856
857–856
< 857

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

Climate

Mean T°

10,7°C

Annual rain

920mm

Warmest m°

21,4°C

Coldest m°

2,1°C

Elevation: 201 m on average (min 146 m, max 272 m)

Bioclimatic detailsExpert
Annual mean temp.
10,7°C
Annual rain
920mm
Warmest month
21,4°C
Coldest month
2,1°C
Mean alt.
201m
Min
146m
Max
272m
Std. dev.
31m
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

5,8

Org. C

41,7g/kg

Clay

23,0%

Sand

22,2%

Silt

54,8%

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

Dominant lithology: paGLiMaggregated to Côtes-d'Armor

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,8
Org. C
65,5g/kg
Clay
22,4%
Sand
22,6%
Silt
55,0%
5–15 cm
pH H₂O
5,9
Org. C
35,7g/kg
Clay
22,6%
Sand
21,8%
Silt
55,6%
15–30 cm
pH H₂O
5,9
Org. C
23,9g/kg
Clay
24,1%
Sand
22,1%
Silt
53,9%

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

Land cover

Forest25.9%
Crops42.6%
Built-up0.6%
Bare soil0.4%
Other (grassland, water…)30.4%

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

Hydrology3 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

5,5km

Basins crossed

3

Max stream order

2

Max drainage

1 026km²

Discharge in basins

0,5m³/s

Mean precip.

761mm/an

Mean T°

11,0°C

Moisture idx

0,02

Max snow

7%

Mean runoff

531mm/an

Mean elev. (basins)

88m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Built-up

61,2%

Pesticides

45,7kg/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.