Basse Ardèche urgonienne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2010
69 km²
Commune · FRA
Gras
France
CfaTemperate, no dry season, hot summer(89 %)
Species observed
3 514
Observations
93 158
Area
57,7km²
Ecological tissue
Sample of 30 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 Gras : 22 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 5 types (connectance 16.3%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
30
Interactions affichées
71
Connectance
0.163
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
3 514 distinct species · 93 158 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,9°C
Annual rain
1 165mm
Warmest m°
27,8°C
Coldest m°
0,6°C
Elevation: 363 m on average (min 195 m, max 600 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,9°C
Annual rain
1 165mm
Warmest month
27,8°C
Coldest month
0,6°C
Mean alt.
363m
Min
195m
Max
600m
Std. dev.
65m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(89 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,9
Org. C
38,1g/kg
Clay
31,7%
Sand
25,8%
Silt
42,5%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: mtGLiMaggregated to Ardèche
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,8
Org. C
64,7g/kg
Clay
31,5%
Sand
26,1%
Silt
42,5%
5–15 cm
pH H₂O
6,9
Org. C
27,3g/kg
Clay
31,6%
Sand
25,7%
Silt
42,7%
15–30 cm
pH H₂O
6,9
Org. C
22,3g/kg
Clay
32,0%
Sand
25,8%
Silt
42,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest47.9%
Crops18.7%
Built-up0.2%
Bare soil1.4%
Other (grassland, water…)31.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
7,9km
Basins crossed
2
Max stream order
1
Max drainage
70 572km²
Discharge in basins
36,2m³/s
Mean precip.
836mm/an
Mean T°
11,1°C
Moisture idx
-0,10
Max snow
9%
Mean runoff
436mm/an
Mean elev. (basins)
406m
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
Night light
0,1nW
Built-up
21,5%
Pesticides
42,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas5
IUCN Not Reported · 2IUCN IV · 2IUCN Ia · 1
Basse Ardèche
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2018
60 km²
Massif De La Dent De Rez
IUCN IVBiotope Protection Order · 1990
32 km²
Bois Sauvage
IUCN IaForest Integral Biological Reserve · 2006
4 km²
Bois Sauvage
IUCN IVForest Managed Biological Reserve · 2006
1 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.