Vallées de la Saye et du Meudon
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2021
14 km²
Commune · FRA
Périssac
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
797
Observations
8 654
Area
12,4km²
Ecological tissue
Sample of 35 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 Périssac : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 4 bulles famille, 74 interactions GloBI documentées sur 5 types (connectance 12.4%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
35
Interactions affichées
74
Connectance
0.124
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
797 distinct species · 8 654 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,5°C
Annual rain
884mm
Warmest m°
26,1°C
Coldest m°
3,0°C
Elevation: 38 m on average (min 25 m, max 52 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
13,5°C
Annual rain
884mm
Warmest month
26,1°C
Coldest month
3,0°C
Mean alt.
38m
Min
25m
Max
52m
Std. dev.
8m
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
6,3
Org. C
35,2g/kg
Clay
24,5%
Sand
47,5%
Silt
28,1%
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
6,3
Org. C
58,5g/kg
Clay
23,7%
Sand
48,4%
Silt
28,0%
5–15 cm
pH H₂O
6,3
Org. C
26,9g/kg
Clay
24,4%
Sand
47,9%
Silt
27,8%
15–30 cm
pH H₂O
6,3
Org. C
20,1g/kg
Clay
25,4%
Sand
46,2%
Silt
28,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest32.1%
Crops26.0%
Built-up1.2%
Bare soil1.0%
Other (grassland, water…)39.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
7,1km
Basins crossed
1
Max stream order
3
Max drainage
337km²
Discharge in basins
0,2m³/s
Mean precip.
900mm/an
Mean T°
12,4°C
Moisture idx
-0,05
Max snow
4%
Mean runoff
522mm/an
Mean elev. (basins)
60m
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
0,9nW
Built-up
121,5%
Pesticides
46,3kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Reported · 1IUCN IV · 1
pre de la saye
IUCN IVLand acquired by a regional conservatory of natural areas · 2020
0 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.