Ontologia

Commune · FRA

Cahagnes

France

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

Species observed

924

Observations

8 261

Area

24,9km²

Ecological tissue

Sample of 37 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 Cahagnes : 25 espèces reliées par 101 interactions GloBI sur 5 types (connectance 15.2%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
101
Connectance
0.152
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

924 distinct species · 8 261 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

8 261 obs · 4 cellules
Obs. / cellule
≥ 3 522
3 522–3 521
2 109–3 521
2 109–2 108
< 2 109

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

Climate

Mean T°

10,6°C

Annual rain

1 033mm

Warmest m°

21,3°C

Coldest m°

2,1°C

Elevation: 157 m on average (min 112 m, max 260 m)

Bioclimatic detailsExpert
Annual mean temp.
10,6°C
Annual rain
1 033mm
Warmest month
21,3°C
Coldest month
2,1°C
Mean alt.
157m
Min
112m
Max
260m
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

6,1

Org. C

31,6g/kg

Clay

23,1%

Sand

22,1%

Silt

54,8%

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

Dominant lithology: ssGLiMaggregated to Calvados

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
48,4g/kg
Clay
22,9%
Sand
22,3%
Silt
54,9%
5–15 cm
pH H₂O
6,1
Org. C
26,9g/kg
Clay
22,7%
Sand
22,0%
Silt
55,4%
15–30 cm
pH H₂O
6,1
Org. C
19,7g/kg
Clay
23,7%
Sand
22,1%
Silt
54,2%

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

Land cover

Forest9.1%
Crops61.3%
Built-up0.9%
Bare soil0.4%
Other (grassland, water…)28.3%

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

Hydrology2 basins · 0 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

8,8km

Basins crossed

2

Max stream order

2

Max drainage

1 958km²

Discharge in basins

0,2m³/s

Mean precip.

733mm/an

Mean T°

10,6°C

Moisture idx

-0,00

Max snow

8%

Mean runoff

667mm/an

Mean elev. (basins)

70m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

88,3%

Pesticides

35,4kg/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.