Cévennes [Aire D\'Adhésion]
IUCN VNational Park - Buffer zone/Area of adhesion · 1970
2 183 km²
Subdivision · FRA
Alès-Ouest
France
CsaTemperate, dry summer, hot summer(76 %)
Species observed
1 255
Observations
15 374
Area
78,2km²
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 Alès-Ouest : 33 espèces + 4 bulles famille, 65 interactions GloBI documentées sur 5 types (connectance 9.8%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
37
Interactions affichées
65
Connectance
0.098
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
1 255 distinct species · 15 374 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,3°C
Annual rain
1 358mm
Warmest m°
28,5°C
Coldest m°
1,0°C
Elevation: 273 m on average (min 105 m, max 541 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
13,3°C
Annual rain
1 358mm
Warmest month
28,5°C
Coldest month
1,0°C
Mean alt.
273m
Min
105m
Max
541m
Std. dev.
103m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(76 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,8
Org. C
45,3g/kg
Clay
25,5%
Sand
31,4%
Silt
43,1%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Gard
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,8
Org. C
76,8g/kg
Clay
24,6%
Sand
31,9%
Silt
43,5%
5–15 cm
pH H₂O
6,9
Org. C
34,2g/kg
Clay
24,2%
Sand
31,5%
Silt
44,2%
15–30 cm
pH H₂O
6,9
Org. C
25,1g/kg
Clay
27,7%
Sand
30,7%
Silt
41,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest60.0%
Crops10.0%
Built-up1.7%
Bare soil0.8%
Other (grassland, water…)27.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 8 rivers
Hydrology metrics for this exact territory
Stream length here
29,4km
Basins crossed
1
Max stream order
3
Max drainage
1 993km²
Discharge in basins
1,5m³/s
Mean precip.
751mm/an
Mean T°
12,4°C
Moisture idx
-0,23
Max snow
6%
Mean runoff
537mm/an
Mean elev. (basins)
301m
Watersheds crossing here
Rivers / streams (8, ord ≥ 4)
- L'Alzonord 3len here10.77 km23%total47 km
- Valat de Baloussièreord 2len here8.06 km100%total8 km
- Ruisseau de Salandreord 1len here4.56 km86%total5 km
- Le Carriolord 1len here2.93 km85%total3 km
- Le Galeizonord 1len here1.92 km20%total9 km
- Le Gardon d'Alèsord 4len here0.94 km3%total37 km
- L'Avèneord 2len here0.22 km1%total22 km
- Le Gardonord 4len here≈ tangenttotal33 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,4nW
Built-up
173,2%
Pesticides
30,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN Not Reported · 2IUCN V · 1
Vallée du Gardon de Mialet
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2016
234 km²
Vallée du Galeizon
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2016
86 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
Sub-administrations5
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.