La Dordogne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2015
57 km²
Commune · FRA
Grézillac
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
557
Observations
1 759
Area
7,8km²
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 Grézillac : 28 espèces + 5 bulles famille, 90 interactions GloBI documentées sur 5 types (connectance 17.0%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
33
Interactions affichées
90
Connectance
0.171
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
557 distinct species · 1 759 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,5°C
Annual rain
826mm
Warmest m°
26,3°C
Coldest m°
2,7°C
Elevation: 55 m on average (min 8 m, max 74 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
13,5°C
Annual rain
826mm
Warmest month
26,3°C
Coldest month
2,7°C
Mean alt.
55m
Min
8m
Max
74m
Std. dev.
12m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,8
Org. C
30,2g/kg
Clay
24,1%
Sand
36,3%
Silt
39,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Gironde
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,7
Org. C
54,2g/kg
Clay
24,0%
Sand
36,4%
Silt
39,5%
5–15 cm
pH H₂O
6,9
Org. C
19,8g/kg
Clay
23,8%
Sand
37,3%
Silt
38,9%
15–30 cm
pH H₂O
6,9
Org. C
16,6g/kg
Clay
24,4%
Sand
35,2%
Silt
40,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest26.4%
Crops24.7%
Built-up1.6%
Bare soil2.2%
Other (grassland, water…)45.2%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
0,5km
Basins crossed
1
Max stream order
6
Max drainage
15 675km²
Discharge in basins
1,1m³/s
Mean precip.
866mm/an
Mean T°
12,4°C
Moisture idx
-0,12
Max snow
3%
Mean runoff
468mm/an
Mean elev. (basins)
93m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
1,6nW
Built-up
160,4%
Pesticides
47,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN Not Reported · 1🌊 Marine · 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.