Ontologia

Commune · FRA

Donnazac

France

CfaTemperate, no dry season, hot summer(83 %)

Species observed

1 286

Observations

21 174

Area

4,3km²

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 Donnazac : 28 espèces reliées par 106 interactions GloBI sur 5 types (connectance 12.9%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
41
Interactions affichées
106
Connectance
0.129
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

1 286 distinct species · 21 174 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

21 174 obs · 2 cellules
Obs. / cellule
≥ 17 007
17 007–17 006
17 007–17 006
17 007–17 006
< 17 007

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

Climate

Mean T°

12,8°C

Annual rain

838mm

Warmest m°

26,1°C

Coldest m°

1,7°C

Elevation: 267 m on average (min 256 m, max 283 m)

Bioclimatic detailsExpert
Annual mean temp.
12,8°C
Annual rain
838mm
Warmest month
26,1°C
Coldest month
1,7°C
Mean alt.
267m
Min
256m
Max
283m
Std. dev.
9m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(83 %)Temperate

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

Soil & lithology

pH H₂O

7,0

Org. C

25,8g/kg

Clay

30,2%

Sand

30,3%

Silt

39,5%

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

Dominant lithology: ssGLiMaggregated to Tarn

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,9
Org. C
41,5g/kg
Clay
28,5%
Sand
31,4%
Silt
40,0%
5–15 cm
pH H₂O
7,1
Org. C
17,9g/kg
Clay
29,6%
Sand
30,6%
Silt
39,7%
15–30 cm
pH H₂O
7,0
Org. C
18,0g/kg
Clay
32,4%
Sand
29,0%
Silt
38,6%

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

Land cover

Forest5.0%
Crops71.2%
Built-up0.4%
Bare soil3.1%
Other (grassland, water…)20.3%

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

Hydrology2 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

2

Max drainage

496km²

Discharge in basins

0,0m³/s

Mean precip.

769mm/an

Mean T°

12,4°C

Moisture idx

-0,22

Max snow

2%

Mean runoff

298mm/an

Mean elev. (basins)

268m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,5nW

Built-up

38,1%

Pesticides

43,9kg/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.