Cévennes [Aire D\'Adhésion]
IUCN VNational Park - Buffer zone/Area of adhesion · 1970
2 183 km²
Commune · FRA
Fressac
France
CsaTemperate, dry summer, hot summer(100 %)
Species observed
1 095
Observations
6 247
Area
6,1km²
Ecological tissue
Sample of 33 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 Fressac : 29 espèces + 4 bulles famille, 71 interactions GloBI documentées sur 4 types (connectance 13.4%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
33
Interactions affichées
71
Connectance
0.135
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
1 095 distinct species · 6 247 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,4°C
Annual rain
1 250mm
Warmest m°
28,9°C
Coldest m°
1,0°C
Elevation: 243 m on average (min 213 m, max 296 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
13,4°C
Annual rain
1 250mm
Warmest month
28,9°C
Coldest month
1,0°C
Mean alt.
243m
Min
213m
Max
296m
Std. dev.
28m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,7
Org. C
42,7g/kg
Clay
26,9%
Sand
26,0%
Silt
47,1%
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
6,7
Org. C
72,8g/kg
Clay
25,7%
Sand
26,5%
Silt
47,8%
5–15 cm
pH H₂O
6,7
Org. C
33,4g/kg
Clay
25,9%
Sand
25,5%
Silt
48,6%
15–30 cm
pH H₂O
6,7
Org. C
21,8g/kg
Clay
29,2%
Sand
25,9%
Silt
44,9%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest51.6%
Crops6.4%
Built-up0.4%
Bare soil1.4%
Other (grassland, water…)40.1%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
2,6km
Basins crossed
1
Max stream order
1
Max drainage
916km²
Discharge in basins
0,1m³/s
Mean precip.
744mm/an
Mean T°
13,3°C
Moisture idx
-0,26
Max snow
3%
Mean runoff
542mm/an
Mean elev. (basins)
137m
Watersheds crossing here
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Built-up
43,0%
Pesticides
40,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN V · 1
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.