Vallée de la Charente entre Angoulème et Cognac et ses principaux affluents (SOLOIRE, BOEME, ECHELLE)
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2006
54 km²
Commune · FRA
Jarnac
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
1 205
Observations
10 598
Area
11,5km²
Ecological tissue
Sample of 40 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 Jarnac : 25 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 122 interactions GloBI sur 6 types (connectance 14.9%, filtre Serrano α=0.2). 16 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
41
Interactions affichées
122
Connectance
0.149
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
1 205 distinct species · 10 598 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
13,0°C
Annual rain
817mm
Warmest m°
25,7°C
Coldest m°
2,7°C
Elevation: 20 m on average (min 13 m, max 44 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
13,0°C
Annual rain
817mm
Warmest month
25,7°C
Coldest month
2,7°C
Mean alt.
20m
Min
13m
Max
44m
Std. dev.
3m
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
7,2
Org. C
30,4g/kg
Clay
35,6%
Sand
19,8%
Silt
44,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Charente
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
7,1
Org. C
49,1g/kg
Clay
34,0%
Sand
20,1%
Silt
45,9%
5–15 cm
pH H₂O
7,3
Org. C
24,0g/kg
Clay
37,5%
Sand
18,1%
Silt
44,4%
15–30 cm
pH H₂O
7,3
Org. C
18,0g/kg
Clay
35,4%
Sand
21,2%
Silt
43,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest15.5%
Crops30.9%
Built-up4.9%
Bare soil1.4%
Other (grassland, water…)47.3%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
4,3km
Basins crossed
1
Max stream order
5
Max drainage
5 486km²
Discharge in basins
0,4m³/s
Mean precip.
859mm/an
Mean T°
12,1°C
Moisture idx
-0,07
Max snow
2%
Mean runoff
535mm/an
Mean elev. (basins)
82m
Watersheds crossing here
Rivers / streams (1, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Night light
2,1nW
Built-up
486,7%
Pesticides
42,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN Not Reported · 1
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.