Lac du Bourget - Marais de Chautagne
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2003
55 km²
Commune · FRA
Tresserve
France
CfaTemperate, no dry season, hot summer(100 %)
Species observed
2 439
Observations
21 335
Area
7,6km²
Ecological tissue
Sample of 50 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 Tresserve : 47 espèces + 3 bulles famille, 76 interactions GloBI documentées sur 6 types (connectance 6.2%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
50
Interactions affichées
76
Connectance
0.062
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
2 439 distinct species · 21 335 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,4°C
Annual rain
1 364mm
Warmest m°
26,1°C
Coldest m°
-2,4°C
Elevation: 246 m on average (min 231 m, max 278 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,4°C
Annual rain
1 364mm
Warmest month
26,1°C
Coldest month
-2,4°C
Mean alt.
246m
Min
231m
Max
278m
Std. dev.
14m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, 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
6,1
Org. C
53,0g/kg
Clay
28,3%
Sand
33,6%
Silt
38,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: scGLiMaggregated to Savoie
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,0
Org. C
91,6g/kg
Clay
26,6%
Sand
35,0%
Silt
38,5%
5–15 cm
pH H₂O
6,2
Org. C
42,6g/kg
Clay
27,5%
Sand
33,6%
Silt
38,9%
15–30 cm
pH H₂O
6,2
Org. C
24,8g/kg
Clay
30,9%
Sand
32,3%
Silt
36,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest9.0%
Crops2.5%
Built-up2.5%
Bare soil0.5%
Other (grassland, water…)85.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 1 lakes · 1 rivers
Hydrology metrics for this exact territory
Lake surface here
5,05km²
Basins crossed
1
Max stream order
2
Max drainage
619km²
Discharge in basins
0,2m³/s
Mean precip.
999mm/an
Mean T°
9,3°C
Moisture idx
0,11
Max snow
12%
Mean runoff
632mm/an
Mean elev. (basins)
617m
Watersheds crossing here
Lakes (1, top by area)
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
2,4nW
Built-up
250,8%
Pesticides
44,7kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas4
IUCN Not Reported · 3IUCN IV · 1
Lac du Bourget et marais de Chautagne
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2023
55 km²
Lac du Bourget et marais de Chautagne
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2022
55 km²
Rive du poete
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy) · 2011
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.