Ontologia

Commune · FRA

Sizun

France

CfbTemperate, no dry season, warm summer(100 %)

Species observed

846

Observations

11 975

Area

58,9km²

Ecological tissue

Sample of 39 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 Sizun : 26 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 111 interactions GloBI sur 6 types (connectance 14.2%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
111
Connectance
0.142
Patrimoniales
3
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

846 distinct species · 11 975 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

11 975 obs · 2 cellules
Obs. / cellule
≥ 7 102
7 102–7 101
7 102–7 101
7 102–7 101
< 7 102

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

Climate

Mean T°

10,9°C

Annual rain

1 327mm

Warmest m°

20,5°C

Coldest m°

3,2°C

Elevation: 164 m on average (min 95 m, max 307 m)

Bioclimatic detailsExpert
Annual mean temp.
10,9°C
Annual rain
1 327mm
Warmest month
20,5°C
Coldest month
3,2°C
Mean alt.
164m
Min
95m
Max
307m
Std. dev.
52m
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

5,8

Org. C

41,5g/kg

Clay

22,8%

Sand

24,3%

Silt

52,9%

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

Dominant lithology: paGLiMaggregated to Finistère

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,8
Org. C
60,4g/kg
Clay
22,2%
Sand
24,4%
Silt
53,3%
5–15 cm
pH H₂O
5,8
Org. C
38,3g/kg
Clay
22,8%
Sand
24,3%
Silt
52,9%
15–30 cm
pH H₂O
5,8
Org. C
25,9g/kg
Clay
23,3%
Sand
24,3%
Silt
52,5%

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

Land cover

Forest28.0%
Crops38.7%
Built-up0.7%
Bare soil0.4%
Other (grassland, water…)32.2%

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

Hydrology2 basins · 1 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

15,4km

Lake surface here

0,37km²

Basins crossed

2

Max stream order

2

Max drainage

3 064km²

Discharge in basins

0,2m³/s

Mean precip.

1 055mm/an

Mean T°

10,9°C

Moisture idx

0,37

Max snow

8%

Mean runoff

875mm/an

Mean elev. (basins)

85m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,1nW

Built-up

69,5%

Pesticides

40,4kg/km²

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

Protected areas5

IUCN Not Reported · 3IUCN V · 1IUCN IV · 1🌊 Marine · 2

Armorique

IUCN V

Regional Nature Park · 1969

1 259 km²

Rivière Elorn

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2007

24 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.