La Gélise
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2021
38 km²
Commune · FRA
Nérac
France
CfaTemperate, no dry season, hot summer(80 %)
Species observed
1 837
Observations
27 918
Area
62,7km²
Ecological tissue
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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Nérac : 26 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 130 interactions GloBI sur 6 types (connectance 15.1%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
42
Interactions affichées
130
Connectance
0.151
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
1 837 distinct species · 27 918 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,6°C
Annual rain
764mm
Warmest m°
26,9°C
Coldest m°
2,4°C
Elevation: 100 m on average (min 56 m, max 155 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
13,6°C
Annual rain
764mm
Warmest month
26,9°C
Coldest month
2,4°C
Mean alt.
100m
Min
56m
Max
155m
Std. dev.
29m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(80 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,7
Org. C
36,0g/kg
Clay
27,8%
Sand
30,0%
Silt
42,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to Lot-et-Garonne
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,5
Org. C
69,9g/kg
Clay
26,3%
Sand
29,7%
Silt
43,9%
5–15 cm
pH H₂O
6,7
Org. C
21,1g/kg
Clay
27,5%
Sand
29,2%
Silt
43,3%
15–30 cm
pH H₂O
6,7
Org. C
16,9g/kg
Clay
29,6%
Sand
31,0%
Silt
39,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest8.3%
Crops65.7%
Built-up1.7%
Bare soil1.8%
Other (grassland, water…)22.6%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 5 rivers
Hydrology metrics for this exact territory
Stream length here
17,5km
Basins crossed
2
Max stream order
4
Max drainage
34 970km²
Discharge in basins
0,7m³/s
Mean precip.
816mm/an
Mean T°
12,2°C
Moisture idx
-0,17
Max snow
2%
Mean runoff
317mm/an
Mean elev. (basins)
185m
Watersheds crossing here
Rivers / streams (5, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,4nW
Built-up
167,3%
Pesticides
45,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Reported · 2
Caves de Nérac
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2014
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.