Ontologia

Commune · FRA

Vritz

France

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

Species observed

1 507

Observations

14 122

Area

33,3km²

Ecological tissue

Sample of 24 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 Vritz : 11 espèces reliées par 99 interactions GloBI sur 6 types (connectance 28.2%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
99
Connectance
0.282
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

1 507 distinct species · 14 122 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

14 122 obs · 5 cellules
Obs. / cellule
≥ 6 919
6 919–6 918
4 098–6 918
1 726–4 097
< 1 726

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

Climate

Mean T°

11,7°C

Annual rain

757mm

Warmest m°

23,5°C

Coldest m°

2,2°C

Elevation: 61 m on average (min 42 m, max 87 m)

Bioclimatic detailsExpert
Annual mean temp.
11,7°C
Annual rain
757mm
Warmest month
23,5°C
Coldest month
2,2°C
Mean alt.
61m
Min
42m
Max
87m
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

33,1g/kg

Clay

19,1%

Sand

31,0%

Silt

49,9%

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

Dominant lithology: ssGLiMaggregated to Loire-Atlantique

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
51,7g/kg
Clay
16,8%
Sand
32,2%
Silt
51,0%
5–15 cm
pH H₂O
6,0
Org. C
22,0g/kg
Clay
19,1%
Sand
30,5%
Silt
50,4%
15–30 cm
pH H₂O
6,0
Org. C
25,7g/kg
Clay
21,3%
Sand
30,4%
Silt
48,3%

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

Land cover

Forest8.5%
Crops64.2%
Built-up0.6%
Bare soil0.7%
Other (grassland, water…)26.0%

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

Hydrology2 basins · 0 lakes · 5 rivers

Hydrology metrics for this exact territory

Stream length here

11,9km

Basins crossed

2

Max stream order

2

Max drainage

5 676km²

Discharge in basins

0,5m³/s

Mean precip.

750mm/an

Mean T°

11,4°C

Moisture idx

-0,09

Max snow

5%

Mean runoff

439mm/an

Mean elev. (basins)

45m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

64,4%

Pesticides

43,6kg/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.