Est et sud de Béziers
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2020
61 km²
Commune · FRA
Bessan
France
CsaTemperate, dry summer, hot summer(100 %)
Species observed
1 319
Observations
17 487
Area
27,8km²
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 Bessan : 36 espèces + 4 bulles famille, 64 interactions GloBI documentées sur 5 types (connectance 8.2%, filtre Serrano α=0.2). Les 4 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
40
Interactions affichées
64
Connectance
0.082
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
1 319 distinct species · 17 487 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
15,1°C
Annual rain
646mm
Warmest m°
26,0°C
Coldest m°
6,0°C
Elevation: 15 m on average (min 2 m, max 37 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
15,1°C
Annual rain
646mm
Warmest month
26,0°C
Coldest month
6,0°C
Mean alt.
15m
Min
2m
Max
37m
Std. dev.
10m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,7
Org. C
23,5g/kg
Clay
30,4%
Sand
31,8%
Silt
37,8%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Hérault
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
7,6
Org. C
36,9g/kg
Clay
29,3%
Sand
32,6%
Silt
38,1%
5–15 cm
pH H₂O
7,8
Org. C
14,3g/kg
Clay
27,8%
Sand
33,0%
Silt
39,1%
15–30 cm
pH H₂O
7,8
Org. C
19,3g/kg
Clay
33,9%
Sand
29,8%
Silt
36,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest8.7%
Crops35.6%
Built-up2.1%
Bare soil4.1%
Other (grassland, water…)49.5%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
10,2km
Basins crossed
2
Max stream order
4
Max drainage
2 621km²
Discharge in basins
0,6m³/s
Mean precip.
733mm/an
Mean T°
12,5°C
Moisture idx
-0,24
Max snow
5%
Mean runoff
645mm/an
Mean elev. (basins)
366m
Watersheds crossing here
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
1,2nW
Built-up
209,2%
Pesticides
42,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN Not Reported · 2IUCN IV · 1🌊 Marine · 2
Cours inférieur de l'Hérault
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2016
2 km²
bessan
IUCN IVLand acquired by a regional conservatory of natural areas · 1900
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.