Ontologia

District · CHE

Büren

Switzerland

CfbTemperate, no dry season, warm summer(99 %)

Species observed

6 346

Observations

129 083

Area

88,8km²

Ecological tissue

Sample of 43 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 Büren : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 123 interactions GloBI sur 5 types (connectance 13.6%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
43
Interactions affichées
123
Connectance
0.136
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

6 346 distinct species · 129 083 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

129 083 obs · 5 cellules
Obs. / cellule
≥ 33 692
33 692–33 691
30 323–33 691
22 777–30 322
< 22 777

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Climate

Mean T°

9,9°C

Annual rain

1 260mm

Warmest m°

23,1°C

Coldest m°

-2,9°C

Elevation: 497 m on average (min 428 m, max 1 074 m)

Bioclimatic detailsExpert
Annual mean temp.
9,9°C
Annual rain
1 260mm
Warmest month
23,1°C
Coldest month
-2,9°C
Mean alt.
497m
Min
428m
Max
1 074m
Std. dev.
89m
Köppen-Geiger (dominant)
CfbTemperate, no dry season, warm summer(99 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

6,4

Org. C

58,0g/kg

Clay

26,6%

Sand

37,0%

Silt

36,3%

Average over 0-30 cm. Per-depth details in expert panel.

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,3
Org. C
83,1g/kg
Clay
27,3%
Sand
36,7%
Silt
36,1%
5–15 cm
pH H₂O
6,4
Org. C
51,9g/kg
Clay
26,4%
Sand
37,2%
Silt
36,4%
15–30 cm
pH H₂O
6,4
Org. C
39,0g/kg
Clay
26,2%
Sand
37,3%
Silt
36,5%

SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)

Land cover

Forest30.8%
Crops34.3%
Built-up1.9%
Bare soil0.8%
Other (grassland, water…)32.1%

Copernicus Global Land Cover 100m (Buchhorn et al. 2020)

Hydrology2 basins · 0 lakes · 10 rivers

Hydrology metrics for this exact territory

Stream length here

42,0km

Basins crossed

2

Max stream order

6

Max drainage

8 397km²

Discharge in basins

31,1m³/s

Mean precip.

1 087mm/an

Mean T°

7,5°C

Moisture idx

0,30

Max snow

27%

Mean runoff

714mm/an

Mean elev. (basins)

735m

Watersheds crossing here

Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10

Human pressure

Pop. density

2hab/km²

Night light

1,7nW

Built-up

190,3%

Pesticides

53,0kg/km²

GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)

Protected areas21

IUCN IV · 19IUCN Not Assigned · 2

Grenchner Witi

IUCN IV

Federal Inventory of Amphibian Spawning Areas of National Importance · 2017

6 km²

Witi (BE,SO)

IUCN IV

Federal Inventory of Reserves for Waterbirds and Migratory Birds of International and National Imp. · 1992

4 km²

Häftli bei Büren (BE)

IUCN IV

Federal Inventory of Reserves for Waterbirds and Migratory Birds of International and National Imp. · 2001

1 km²

Alte Aare

IUCN Not Assigned

Forest Reserves · 2023

1 km²

Complete list

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations13