Brenne
IUCN VRegional Nature Park · 1989
1 832 km²
Commune · FRA
France
Species observed
723
Observations
3 333
Area
31,4km²
Sample of 27 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 Sacierges-Saint-Martin : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 51 interactions GloBI sur 6 types (connectance 14.5%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
723 distinct species · 3 333 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
12,0°C
Annual rain
864mm
Warmest m°
24,5°C
Coldest m°
1,9°C
Elevation: 176 m on average (min 144 m, max 216 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
6,1
Org. C
34,7g/kg
Clay
20,3%
Sand
38,5%
Silt
41,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Indre
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
3,0km
Basins crossed
1
Max stream order
2
Max drainage
3 880km²
Discharge in basins
0,3m³/s
Mean precip.
885mm/an
Mean T°
10,9°C
Moisture idx
-0,02
Max snow
4%
Mean runoff
305mm/an
Mean elev. (basins)
257m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Built-up
27,9%
Pesticides
28,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Regional Nature Park · 1989
1 832 km²
Wetland of International Importance (Ramsar Site) · 1991
1 387 km²
Special Areas of Conservation (Habitats Directive) · 2010
41 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.