Ontologia

Commune · FRA

Chéméré

France

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

Species observed

1 963

Observations

148 460

Area

37,7km²

Ecological tissue

Sample of 39 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 Chéméré : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 105 interactions GloBI sur 5 types (connectance 13.5%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
105
Connectance
0.135
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

1 963 distinct species · 148 460 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

148 460 obs · 6 cellules
Obs. / cellule
≥ 133 806
133 806–133 805
5 971–133 805
3 695–5 970
< 3 695

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

Climate

Mean T°

12,3°C

Annual rain

830mm

Warmest m°

23,0°C

Coldest m°

3,2°C

Elevation: 24 m on average (min 9 m, max 51 m)

Bioclimatic detailsExpert
Annual mean temp.
12,3°C
Annual rain
830mm
Warmest month
23,0°C
Coldest month
3,2°C
Mean alt.
24m
Min
9m
Max
51m
Std. dev.
12m
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

38,5g/kg

Clay

21,1%

Sand

36,3%

Silt

42,6%

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
5,8
Org. C
65,2g/kg
Clay
20,3%
Sand
36,4%
Silt
43,2%
5–15 cm
pH H₂O
5,8
Org. C
29,4g/kg
Clay
20,4%
Sand
35,7%
Silt
43,8%
15–30 cm
pH H₂O
5,8
Org. C
21,0g/kg
Clay
22,5%
Sand
36,8%
Silt
40,7%

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

Land cover

Forest18.4%
Crops48.5%
Built-up1.2%
Bare soil1.0%
Other (grassland, water…)31.0%

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

Hydrology2 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

3,4km

Basins crossed

2

Max stream order

2

Max drainage

1 307km²

Discharge in basins

0,6m³/s

Mean precip.

797mm/an

Mean T°

11,7°C

Moisture idx

-0,02

Max snow

5%

Mean runoff

531mm/an

Mean elev. (basins)

33m

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

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

119,2%

Pesticides

42,9kg/km²

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

Protected areas1

IUCN 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.