Ontologia

Commune · FRA

Saumur

France

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

Species observed

3 814

Observations

67 369

Area

67,1km²

Ecological tissue

Sample of 35 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 Saumur : 25 espèces reliées par 102 interactions GloBI sur 6 types (connectance 17.1%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
102
Connectance
0.171
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

3 814 distinct species · 67 369 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

67 369 obs · 7 cellules
Obs. / cellule
≥ 22 879
22 879–22 878
9 324–22 878
6 629–9 323
< 6 629

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

654mm

Warmest m°

24,4°C

Coldest m°

2,2°C

Elevation: 43 m on average (min 24 m, max 88 m)

Bioclimatic detailsExpert
Annual mean temp.
12,1°C
Annual rain
654mm
Warmest month
24,4°C
Coldest month
2,2°C
Mean alt.
43m
Min
24m
Max
88m
Std. dev.
20m
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

39,2g/kg

Clay

22,7%

Sand

45,8%

Silt

31,6%

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
5,9
Org. C
66,4g/kg
Clay
21,6%
Sand
46,6%
Silt
31,8%
5–15 cm
pH H₂O
6,1
Org. C
31,0g/kg
Clay
23,1%
Sand
44,6%
Silt
32,3%
15–30 cm
pH H₂O
6,1
Org. C
20,1g/kg
Clay
23,3%
Sand
46,0%
Silt
30,6%

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

Land cover

Forest19.0%
Crops31.6%
Built-up3.8%
Bare soil1.9%
Other (grassland, water…)43.6%

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

Hydrology4 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

21,2km

Basins crossed

4

Max stream order

7

Max drainage

84 716km²

Discharge in basins

213,7m³/s

Mean precip.

691mm/an

Mean T°

11,5°C

Moisture idx

-0,21

Max snow

6%

Mean runoff

223mm/an

Mean elev. (basins)

68m

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

Human pressure

Pop. density

2hab/km²

Night light

0,8nW

Built-up

381,5%

Pesticides

44,4kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas4

IUCN Not Reported · 2IUCN V · 1IUCN IV · 1

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

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.