Ontologia

Commune · FRA

Sarzeau

France

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

Species observed

2 203

Observations

45 246

Area

60,5km²

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 Sarzeau : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 73 interactions GloBI sur 6 types (connectance 9.4%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
73
Connectance
0.094
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

2 203 distinct species · 45 246 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

45 246 obs · 3 cellules
Obs. / cellule
≥ 18 759
18 759–18 758
18 759–18 758
16 320–18 758
< 16 320

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

Climate

Mean T°

12,4°C

Annual rain

847mm

Warmest m°

20,9°C

Coldest m°

4,8°C

Elevation: 14 m on average (min -4 m, max 36 m)

Bioclimatic detailsExpert
Annual mean temp.
12,4°C
Annual rain
847mm
Warmest month
20,9°C
Coldest month
4,8°C
Mean alt.
14m
Min
-4m
Max
36m
Std. dev.
8m
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

5,9

Org. C

77,6g/kg

Clay

16,5%

Sand

42,2%

Silt

41,3%

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

Dominant lithology: paGLiMaggregated to Morbihan

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
128,8g/kg
Clay
16,7%
Sand
41,9%
Silt
41,4%
5–15 cm
pH H₂O
5,9
Org. C
66,4g/kg
Clay
16,2%
Sand
41,6%
Silt
42,2%
15–30 cm
pH H₂O
5,9
Org. C
37,6g/kg
Clay
16,6%
Sand
43,1%
Silt
40,2%

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

Land cover

Forest29.4%
Crops28.9%
Built-up2.8%
Bare soil0.7%
Other (grassland, water…)38.1%

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

Hydrology1 basins · 1 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

0,9km

Lake surface here

0,11km²

Basins crossed

1

Max stream order

1

Max drainage

1 839km²

Discharge in basins

0,0m³/s

Mean precip.

877mm/an

Mean T°

11,5°C

Moisture idx

0,16

Max snow

7%

Mean runoff

630mm/an

Mean elev. (basins)

40m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,3nW

Built-up

281,2%

Pesticides

46,0kg/km²

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

Protected areas14

IUCN Not Reported · 7IUCN IV · 6IUCN V · 1🌊 Marine · 12

Golfe du Morbihan

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 1991

190 km²

Golfe du Morbihan

IUCN Not Reported

Special Protection Area (Birds Directive) · 2019

95 km²

Complete list

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.