Vallée de l Autize
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2015
2 km²
Commune · FRA
Saint-Marc-la-Lande
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
2 424
Observations
20 711
Area
10,4km²
Ecological tissue
Sample of 41 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 Saint-Marc-la-Lande : 35 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 93 interactions GloBI sur 6 types (connectance 11.3%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
41
Interactions affichées
93
Connectance
0.113
Patrimoniales
2
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
2 424 distinct species · 20 711 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
11,6°C
Annual rain
953mm
Warmest m°
23,8°C
Coldest m°
2,0°C
Elevation: 171 m on average (min 131 m, max 212 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
11,6°C
Annual rain
953mm
Warmest month
23,8°C
Coldest month
2,0°C
Mean alt.
171m
Min
131m
Max
212m
Std. dev.
15m
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
6,5
Org. C
36,1g/kg
Clay
26,3%
Sand
27,0%
Silt
46,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Deux-Sèvres
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,4
Org. C
59,1g/kg
Clay
25,7%
Sand
27,4%
Silt
46,9%
5–15 cm
pH H₂O
6,5
Org. C
28,4g/kg
Clay
26,6%
Sand
25,8%
Silt
47,6%
15–30 cm
pH H₂O
6,5
Org. C
20,9g/kg
Clay
26,6%
Sand
27,7%
Silt
45,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest10.5%
Crops58.5%
Built-up0.7%
Bare soil0.7%
Other (grassland, water…)29.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
1,2km
Basins crossed
2
Max stream order
1
Max drainage
983km²
Discharge in basins
0,2m³/s
Mean precip.
796mm/an
Mean T°
11,7°C
Moisture idx
-0,07
Max snow
3%
Mean runoff
478mm/an
Mean elev. (basins)
96m
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
0,2nW
Built-up
74,0%
Pesticides
41,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Reported · 1IUCN IV · 1
Bocage Des Antonins
IUCN IVRegional Nature Reserve · 2015
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.