Cévennes [Aire D\'Adhésion]
IUCN VNational Park - Buffer zone/Area of adhesion · 1970
2 183 km²
Commune · FRA
Saint-Jean-de-Valériscle
France
CfaTemperate, no dry season, hot summer(80 %)
Species observed
1 355
Observations
5 547
Area
8,2km²
Ecological tissue
Sample of 45 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 Saint-Jean-de-Valériscle : 34 espèces reliées par 112 interactions GloBI sur 5 types (connectance 10.8%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
46
Interactions affichées
112
Connectance
0.108
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
1 355 distinct species · 5 547 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,2°C
Annual rain
1 452mm
Warmest m°
28,0°C
Coldest m°
1,0°C
Elevation: 313 m on average (min 215 m, max 362 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
13,2°C
Annual rain
1 452mm
Warmest month
28,0°C
Coldest month
1,0°C
Mean alt.
313m
Min
215m
Max
362m
Std. dev.
45m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(80 %)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
43,5g/kg
Clay
23,4%
Sand
31,2%
Silt
45,4%
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
6,7
Org. C
73,5g/kg
Clay
22,2%
Sand
31,4%
Silt
46,4%
5–15 cm
pH H₂O
6,8
Org. C
30,9g/kg
Clay
22,0%
Sand
31,1%
Silt
47,0%
15–30 cm
pH H₂O
6,8
Org. C
26,0g/kg
Clay
26,0%
Sand
31,0%
Silt
43,0%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest67.7%
Crops7.5%
Built-up1.0%
Bare soil0.4%
Other (grassland, water…)23.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
3,7km
Basins crossed
2
Max stream order
1
Max drainage
1 993km²
Discharge in basins
0,1m³/s
Mean precip.
767mm/an
Mean T°
12,2°C
Moisture idx
-0,20
Max snow
6%
Mean runoff
487mm/an
Mean elev. (basins)
303m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,6nW
Built-up
101,1%
Pesticides
41,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN V · 1IUCN IV · 1
Vallée De L\'Avène
IUCN IVBiotope Protection Order · 1991
3 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.