Ontologia

Commune · FRA

Saint-Sylvain-d'Anjou

France

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

Species observed

2 483

Observations

37 254

Area

22,1km²

Ecological tissue

Sample of 40 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-Sylvain-d'Anjou : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 96 interactions GloBI sur 4 types (connectance 12.3%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
96
Connectance
0.123
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

2 483 distinct species · 37 254 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

37 254 obs · 4 cellules
Obs. / cellule
≥ 16 414
16 414–16 413
11 837–16 413
11 837–11 836
< 11 837

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

Climate

Mean T°

12,0°C

Annual rain

675mm

Warmest m°

24,0°C

Coldest m°

2,3°C

Elevation: 36 m on average (min 26 m, max 47 m)

Bioclimatic detailsExpert
Annual mean temp.
12,0°C
Annual rain
675mm
Warmest month
24,0°C
Coldest month
2,3°C
Mean alt.
36m
Min
26m
Max
47m
Std. dev.
6m
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

6,6

Org. C

42,7g/kg

Clay

23,6%

Sand

40,5%

Silt

35,8%

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

Dominant lithology: ssGLiMaggregated to Maine-et-Loire

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,5
Org. C
65,3g/kg
Clay
22,0%
Sand
41,4%
Silt
36,6%
5–15 cm
pH H₂O
6,6
Org. C
36,4g/kg
Clay
24,2%
Sand
40,0%
Silt
35,8%
15–30 cm
pH H₂O
6,6
Org. C
26,2g/kg
Clay
24,8%
Sand
40,2%
Silt
35,1%

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

Land cover

Forest15.6%
Crops35.3%
Built-up4.0%
Bare soil0.9%
Other (grassland, water…)44.2%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

4,2km

Basins crossed

2

Max stream order

1

Max drainage

16 250km²

Discharge in basins

30,5m³/s

Mean precip.

661mm/an

Mean T°

11,4°C

Moisture idx

-0,24

Max snow

5%

Mean runoff

213mm/an

Mean elev. (basins)

44m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

1hab/km²

Night light

3,7nW

Built-up

402,0%

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.