Loire-Anjou-Touraine
IUCN VRegional Nature Park · 1996
2 788 km²
Commune · FRA
France
Species observed
1 744
Observations
29 555
Area
30,4km²
Sample of 34 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).
Tissu écologique de Marigny-Marmande : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 115 interactions GloBI sur 5 types (connectance 15.5%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
1 744 distinct species · 29 555 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
11,9°C
Annual rain
725mm
Warmest m°
24,5°C
Coldest m°
1,9°C
Elevation: 103 m on average (min 76 m, max 128 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
6,8
Org. C
25,2g/kg
Clay
25,5%
Sand
39,9%
Silt
34,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Indre-et-Loire
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology metrics for this exact territory
Stream length here
4,4km
Basins crossed
2
Max stream order
1
Max drainage
21 028km²
Discharge in basins
4,9m³/s
Mean precip.
693mm/an
Mean T°
11,5°C
Moisture idx
-0,21
Max snow
5%
Mean runoff
211mm/an
Mean elev. (basins)
82m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Built-up
51,3%
Pesticides
45,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Regional Nature Park · 1996
2 788 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
ZNIEFF, Natura 2000, INPN protected spaces, BNV-D pesticides, Naïades water quality, SAFRAN fine climate, BRGM lithology — Layer FR to load in Phase 2.