Grands Causses
IUCN VRegional Nature Park · 1995
3 807 km²
Commune · FRA
Blandas
France
CsbTemperate, dry summer, warm summer(80 %)
Species observed
2 035
Observations
29 752
Area
37,7km²
Ecological tissue
Sample of 29 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 Blandas : 25 espèces + 4 bulles famille, 48 interactions GloBI documentées sur 4 types (connectance 11.8%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
29
Interactions affichées
48
Connectance
0.118
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
2 035 distinct species · 29 752 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,9°C
Annual rain
1 455mm
Warmest m°
25,1°C
Coldest m°
-0,4°C
Elevation: 662 m on average (min 461 m, max 846 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,9°C
Annual rain
1 455mm
Warmest month
25,1°C
Coldest month
-0,4°C
Mean alt.
662m
Min
461m
Max
846m
Std. dev.
76m
Köppen-Geiger (dominant)
CsbTemperate, dry summer, warm 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
45,7g/kg
Clay
29,9%
Sand
27,4%
Silt
42,7%
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
75,9g/kg
Clay
29,1%
Sand
27,6%
Silt
43,3%
5–15 cm
pH H₂O
6,8
Org. C
36,8g/kg
Clay
29,7%
Sand
27,1%
Silt
43,3%
15–30 cm
pH H₂O
6,8
Org. C
24,4g/kg
Clay
31,0%
Sand
27,4%
Silt
41,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest19.8%
Crops26.4%
Built-up0.1%
Bare soil1.8%
Other (grassland, water…)51.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
3,6km
Basins crossed
1
Max stream order
3
Max drainage
2 621km²
Discharge in basins
0,9m³/s
Mean precip.
734mm/an
Mean T°
12,5°C
Moisture idx
-0,24
Max snow
4%
Mean runoff
650mm/an
Mean elev. (basins)
368m
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
Built-up
10,7%
Pesticides
42,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas5
IUCN Not Reported · 3IUCN V · 2
Cévennes [Aire D\'Adhésion]
IUCN VNational Park - Buffer zone/Area of adhesion · 1970
2 183 km²
Gorges de la Vis et cirque de Navacelles
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2020
203 km²
Causse de Blandas
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2010
79 km²
Gorges de la Vis et de la Virenque
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2016
55 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.