Grands Causses
IUCN VRegional Nature Park · 1995
3 807 km²
Department · FRA
France
Species observed
14 558
Observations
2 698 990
Area
5 876,5km²
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).
Tissu écologique de Gard : 42 espèces + 3 bulles famille, 63 interactions GloBI documentées sur 7 types (connectance 6.4%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
14 558 distinct species · 2 698 990 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
13,7°C
Annual rain
1 019mm
Warmest m°
28,6°C
Coldest m°
1,4°C
Elevation: 246 m on average (min -7 m, max 1 464 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
7,1
Org. C
39,2g/kg
Clay
26,4%
Sand
31,8%
Silt
41,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiM
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology metrics for this exact territory
Stream length here
1 310,3km
Lake surface here
48,94km²
Basins crossed
20
Max stream order
7
Max drainage
95 614km²
Discharge in basins
5 459,1m³/s
Mean precip.
747mm/an
Mean T°
12,7°C
Moisture idx
-0,23
Max snow
12%
Mean runoff
493mm/an
Mean elev. (basins)
252m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
1hab/km²
Night light
1,1nW
Built-up
145,5%
Pesticides
36,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Regional Nature Park · 1995
3 807 km²
Regional Nature Park · 2001
2 487 km²
Special Protection Area (Birds Directive) · 2018
2 203 km²
National Park - Buffer zone/Area of adhesion · 1970
2 183 km²
Special Areas of Conservation (Habitats Directive) · 2014
1 133 km²
Regional Nature Park · 1970
998 km²
+ 30 protected areas (top 60 shown)
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
ZNIEFF, Natura 2000, INPN protected spaces, BNV-D pesticides, Naïades water quality, SAFRAN fine climate, BRGM lithology — Layer FR to load in Phase 2.