Forêt de Grésigne et environs
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2006
276 km²
Commune · FRA
Varen
France
CfaTemperate, no dry season, hot summer(65 %)
Species observed
933
Observations
2 558
Area
23,6km²
Ecological tissue
Sample of 39 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 Varen : 36 espèces + 3 bulles famille, 86 interactions GloBI documentées sur 5 types (connectance 11.6%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
39
Interactions affichées
86
Connectance
0.116
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
933 distinct species · 2 558 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,1°C
Annual rain
790mm
Warmest m°
26,3°C
Coldest m°
2,1°C
Elevation: 208 m on average (min 151 m, max 390 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
13,1°C
Annual rain
790mm
Warmest month
26,3°C
Coldest month
2,1°C
Mean alt.
208m
Min
151m
Max
390m
Std. dev.
54m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(65 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,6
Org. C
36,5g/kg
Clay
30,5%
Sand
29,4%
Silt
40,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Tarn-et-Garonne
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,6
Org. C
58,7g/kg
Clay
29,2%
Sand
30,4%
Silt
40,4%
5–15 cm
pH H₂O
6,7
Org. C
30,4g/kg
Clay
30,2%
Sand
29,5%
Silt
40,3%
15–30 cm
pH H₂O
6,6
Org. C
20,4g/kg
Clay
32,0%
Sand
28,2%
Silt
39,8%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest29.7%
Crops35.5%
Built-up0.7%
Bare soil0.7%
Other (grassland, water…)33.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
9,4km
Basins crossed
2
Max stream order
5
Max drainage
4 037km²
Discharge in basins
8,4m³/s
Mean precip.
780mm/an
Mean T°
12,2°C
Moisture idx
-0,20
Max snow
2%
Mean runoff
316mm/an
Mean elev. (basins)
296m
Watersheds crossing here
Rivers / streams (4, 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
64,8%
Pesticides
13,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN Not Reported · 2IUCN IV · 1
Vallées du Tarn, de l'Aveyron, du Viaur, de l'Agout et du Gijou
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2007
171 km²
Cours De La Garonne, De L\'Aveyron, Du Viaur Et Du Tarn
IUCN IVBiotope Protection Order · 1988
13 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.