La Garonne en Nouvelle-Aquitaine
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2021
67 km²
Subdivision · FRA
France
Species observed
2 124
Observations
40 571
Area
103,3km²
Sample of 38 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 Marmande-Est : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 136 interactions GloBI sur 5 types (connectance 19.3%, 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).
2 124 distinct species · 40 571 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Mean T°
13,6°C
Annual rain
796mm
Warmest m°
26,9°C
Coldest m°
2,5°C
Elevation: 55 m on average (min 20 m, max 109 m)
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
pH H₂O
6,9
Org. C
28,3g/kg
Clay
25,9%
Sand
35,3%
Silt
38,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Lot-et-Garonne
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
27,6km
Basins crossed
2
Max stream order
7
Max drainage
51 213km²
Discharge in basins
72,2m³/s
Mean precip.
827mm/an
Mean T°
12,5°C
Moisture idx
-0,17
Max snow
3%
Mean runoff
340mm/an
Mean elev. (basins)
82m
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Pop. density
0hab/km²
Night light
0,5nW
Built-up
133,0%
Pesticides
44,9kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Special Areas of Conservation (Habitats Directive) · 2021
67 km²
Biotope Protection Order · 1993
18 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.