Haut Val d'Allier
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2018
589 km²
Commune · FRA
Cerzat
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
1 026
Observations
8 080
Area
10km²
Ecological tissue
Sample of 22 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 Cerzat : 16 espèces + 6 bulles famille, 46 interactions GloBI documentées sur 4 types (connectance 19.9%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
22
Interactions affichées
46
Connectance
0.199
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
1 026 distinct species · 8 080 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,4°C
Annual rain
707mm
Warmest m°
24,2°C
Coldest m°
-1,0°C
Elevation: 607 m on average (min 534 m, max 689 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,4°C
Annual rain
707mm
Warmest month
24,2°C
Coldest month
-1,0°C
Mean alt.
607m
Min
534m
Max
689m
Std. dev.
40m
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
6,0
Org. C
40,5g/kg
Clay
25,5%
Sand
43,9%
Silt
30,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiMaggregated to Haute-Loire
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,0
Org. C
67,9g/kg
Clay
24,6%
Sand
45,4%
Silt
30,0%
5–15 cm
pH H₂O
6,1
Org. C
32,2g/kg
Clay
24,9%
Sand
45,1%
Silt
30,1%
15–30 cm
pH H₂O
6,1
Org. C
21,4g/kg
Clay
27,0%
Sand
41,2%
Silt
31,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest17.0%
Crops50.1%
Built-up0.4%
Bare soil1.1%
Other (grassland, water…)31.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology3 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
0,8km
Basins crossed
3
Max stream order
4
Max drainage
2 248km²
Discharge in basins
0,3m³/s
Mean precip.
731mm/an
Mean T°
8,4°C
Moisture idx
-0,11
Max snow
18%
Mean runoff
336mm/an
Mean elev. (basins)
898m
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
Night light
0,2nW
Built-up
35,8%
Pesticides
29,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN Not Reported · 2IUCN IV · 1
Val d'Allier / Vieille Brioude / Langeac
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2016
29 km²
lac du pechey
IUCN IVLand acquired by a regional conservatory of natural areas · 2019
0 km²
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.