Ontologia

Commune · FRA

Meljac

France

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

Species observed

409

Observations

1 453

Area

9,5km²

Ecological tissue

Sample of 28 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 Meljac : 21 espèces + 7 bulles famille, 65 interactions GloBI documentées sur 5 types (connectance 17.2%, filtre Serrano α=0.2). Les 7 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
28
Interactions affichées
65
Connectance
0.172
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

409 distinct species · 1 453 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

735 obs · 7 cellules · 1985–2024
Obs. / cellule
≥ 392
392–391
96–391
56–95
< 56

Source : GBIF — observations agrégées par hexagones 0.02° × 0.02° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

11,3°C

Annual rain

1 065mm

Warmest m°

24,7°C

Coldest m°

0,6°C

Elevation: 503 m on average (min 424 m, max 570 m)

Bioclimatic detailsExpert
Annual mean temp.
11,3°C
Annual rain
1 065mm
Warmest month
24,7°C
Coldest month
0,6°C
Mean alt.
503m
Min
424m
Max
570m
Std. dev.
36m
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

6,4

Org. C

38,8g/kg

Clay

25,0%

Sand

33,8%

Silt

41,2%

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

Dominant lithology: scGLiMaggregated to Aveyron

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,4
Org. C
67,2g/kg
Clay
23,8%
Sand
34,2%
Silt
42,0%
5–15 cm
pH H₂O
6,4
Org. C
28,4g/kg
Clay
23,6%
Sand
34,2%
Silt
42,1%
15–30 cm
pH H₂O
6,4
Org. C
20,8g/kg
Clay
27,6%
Sand
32,8%
Silt
39,6%

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

Land cover

Forest27.5%
Crops35.3%
Built-up0.7%
Bare soil0.6%
Other (grassland, water…)36.0%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

1,5km

Basins crossed

1

Max stream order

2

Max drainage

1 541km²

Discharge in basins

0,1m³/s

Mean precip.

799mm/an

Mean T°

11,0°C

Moisture idx

-0,15

Max snow

4%

Mean runoff

415mm/an

Mean elev. (basins)

638m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

0hab/km²

Built-up

66,0%

Pesticides

15,2kg/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.