Ontologia

Commune · FRA

Saint-Denis-la-Chevasse

France

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

Species observed

741

Observations

8 825

Area

39,7km²

Ecological tissue

Sample of 37 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-Denis-la-Chevasse : 28 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 96 interactions GloBI sur 6 types (connectance 14.4%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
96
Connectance
0.144
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

741 distinct species · 8 825 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 825 obs · 4 cellules
Obs. / cellule
≥ 3 229
3 229–3 228
3 051–3 228
3 051–3 050
< 3 051

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

Climate

Mean T°

12,1°C

Annual rain

903mm

Warmest m°

23,8°C

Coldest m°

2,6°C

Elevation: 73 m on average (min 63 m, max 83 m)

Bioclimatic detailsExpert
Annual mean temp.
12,1°C
Annual rain
903mm
Warmest month
23,8°C
Coldest month
2,6°C
Mean alt.
73m
Min
63m
Max
83m
Std. dev.
4m
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

6,3

Org. C

34,6g/kg

Clay

17,8%

Sand

33,5%

Silt

48,8%

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

Dominant lithology: ssGLiMaggregated to Vendée

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
56,6g/kg
Clay
17,4%
Sand
33,6%
Silt
48,9%
5–15 cm
pH H₂O
6,4
Org. C
21,6g/kg
Clay
16,8%
Sand
33,4%
Silt
49,8%
15–30 cm
pH H₂O
6,4
Org. C
25,7g/kg
Clay
19,0%
Sand
33,4%
Silt
47,6%

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

Land cover

Forest8.7%
Crops64.3%
Built-up1.1%
Bare soil0.3%
Other (grassland, water…)25.6%

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

Hydrology2 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

12,6km

Basins crossed

2

Max stream order

2

Max drainage

2 341km²

Discharge in basins

0,7m³/s

Mean precip.

797mm/an

Mean T°

11,7°C

Moisture idx

-0,02

Max snow

4%

Mean runoff

531mm/an

Mean elev. (basins)

33m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,4nW

Built-up

105,6%

Pesticides

44,6kg/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.