La Sarine: Rossens-Fribourg
IUCN IVFederal Inventory of Alluvial Zones of National Importance · 1992
3 km²
Commune · CHE
Villars-sur-Glâne
Switzerland
CfbTemperate, no dry season, warm summer(100 %)
Species observed
4 308
Observations
67 940
Area
5,5km²
Ecological tissue
Sample of 35 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 Villars-sur-Glâne : 22 espèces reliées par 161 interactions GloBI sur 5 types (connectance 24.2%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
37
Interactions affichées
161
Connectance
0.242
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
4 308 distinct species · 67 940 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
9,2°C
Annual rain
1 291mm
Warmest m°
22,5°C
Coldest m°
-3,6°C
Elevation: 649 m on average (min 631 m, max 661 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
9,2°C
Annual rain
1 291mm
Warmest month
22,5°C
Coldest month
-3,6°C
Mean alt.
649m
Min
631m
Max
661m
Std. dev.
12m
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
6,1
Org. C
51,2g/kg
Clay
18,1%
Sand
52,7%
Silt
29,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiMaggregated to La Sarine
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,1
Org. C
84,2g/kg
Clay
18,5%
Sand
52,3%
Silt
29,3%
5–15 cm
pH H₂O
6,2
Org. C
43,3g/kg
Clay
17,9%
Sand
53,0%
Silt
29,0%
15–30 cm
pH H₂O
6,2
Org. C
26,2g/kg
Clay
17,9%
Sand
52,7%
Silt
29,4%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest14.7%
Crops15.4%
Built-up7.8%
Bare soil0.4%
Other (grassland, water…)61.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 2 rivers
Hydrology metrics for this exact territory
Stream length here
0,8km
Basins crossed
1
Max stream order
4
Max drainage
1 867km²
Discharge in basins
0,1m³/s
Mean precip.
1 237mm/an
Mean T°
5,8°C
Moisture idx
0,42
Max snow
30%
Mean runoff
761mm/an
Mean elev. (basins)
1 137m
Watersheds crossing here
Rivers / streams (2, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
15hab/km²
Night light
11,2nW
Built-up
784,9%
Pesticides
51,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas3
IUCN IV · 2IUCN Not Assigned · 1
Lac de Pérolles (FR)
IUCN IVFederal Inventory of Reserves for Waterbirds and Migratory Birds of International and National Imp. · 2009
1 km²
Talus ferroviaire à Villars-sur-Glâne
IUCN Not AssignedPrivate Nature Reserves · 2018
0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN