Ontologia

Commune · FRA

Lézan

France

CsaTemperate, dry summer, hot summer(100 %)

Species observed

1 553

Observations

22 596

Area

9,1km²

Ecological tissue

Sample of 41 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 Lézan : 27 espèces reliées par 120 interactions GloBI sur 5 types (connectance 13.3%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
120
Connectance
0.133
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

1 553 distinct species · 22 596 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 596 obs · 2 cellules
Obs. / cellule
≥ 13 781
13 781–13 780
13 781–13 780
13 781–13 780
< 13 781

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

Climate

Mean T°

14,1°C

Annual rain

1 032mm

Warmest m°

29,9°C

Coldest m°

1,4°C

Elevation: 125 m on average (min 109 m, max 141 m)

Bioclimatic detailsExpert
Annual mean temp.
14,1°C
Annual rain
1 032mm
Warmest month
29,9°C
Coldest month
1,4°C
Mean alt.
125m
Min
109m
Max
141m
Std. dev.
12m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(100 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

7,5

Org. C

33,3g/kg

Clay

25,3%

Sand

26,7%

Silt

48,1%

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

Dominant lithology: scGLiMaggregated to Gard

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,5
Org. C
53,8g/kg
Clay
24,3%
Sand
27,6%
Silt
48,2%
5–15 cm
pH H₂O
7,6
Org. C
25,5g/kg
Clay
24,1%
Sand
26,4%
Silt
49,6%
15–30 cm
pH H₂O
7,6
Org. C
20,7g/kg
Clay
27,4%
Sand
26,2%
Silt
46,4%

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

Land cover

Forest11.4%
Crops38.1%
Built-up1.8%
Bare soil3.1%
Other (grassland, water…)45.6%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

0,2km

Basins crossed

2

Max stream order

4

Max drainage

1 993km²

Discharge in basins

0,2m³/s

Mean precip.

749mm/an

Mean T°

12,6°C

Moisture idx

-0,24

Max snow

6%

Mean runoff

538mm/an

Mean elev. (basins)

261m

Watersheds crossing here

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

Human pressure

Pop. density

1hab/km²

Night light

0,5nW

Built-up

182,7%

Pesticides

42,6kg/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.