Vallée de l'Adour
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2016
27 km²
Commune · FRA
Séméac
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
1 954
Observations
20 756
Area
6,3km²
Ecological tissue
Sample of 44 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 Séméac : 39 espèces reliées par 82 interactions GloBI sur 6 types (connectance 8.7%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
44
Interactions affichées
82
Connectance
0.087
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
1 954 distinct species · 20 756 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,8°C
Annual rain
1 230mm
Warmest m°
24,4°C
Coldest m°
1,6°C
Elevation: 334 m on average (min 305 m, max 381 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,8°C
Annual rain
1 230mm
Warmest month
24,4°C
Coldest month
1,6°C
Mean alt.
334m
Min
305m
Max
381m
Std. dev.
20m
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
6,0
Org. C
39,1g/kg
Clay
28,2%
Sand
24,8%
Silt
47,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Hautes-Pyrénées
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,0
Org. C
68,8g/kg
Clay
27,3%
Sand
24,8%
Silt
47,9%
5–15 cm
pH H₂O
6,0
Org. C
23,9g/kg
Clay
27,7%
Sand
24,4%
Silt
47,9%
15–30 cm
pH H₂O
6,0
Org. C
24,7g/kg
Clay
29,6%
Sand
25,1%
Silt
45,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest20.8%
Crops10.9%
Built-up9.3%
Bare soil0.2%
Other (grassland, water…)58.8%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
2,3km
Basins crossed
1
Max stream order
3
Max drainage
528km²
Discharge in basins
0,1m³/s
Mean precip.
1 025mm/an
Mean T°
8,2°C
Moisture idx
0,16
Max snow
17%
Mean runoff
517mm/an
Mean elev. (basins)
1 021m
Watersheds crossing here
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
4hab/km²
Night light
4,4nW
Built-up
931,1%
Pesticides
45,6kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN Not Reported · 1IUCN IV · 1
Adour Et Affluents
IUCN IVBiotope Protection Order · 1996
2 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.