Ontologia

Commune · FRA

Langan

France

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

Species observed

1 535

Observations

14 873

Area

7,7km²

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 Langan : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 114 interactions GloBI sur 5 types (connectance 19.2%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
114
Connectance
0.192
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

1 535 distinct species · 14 873 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

14 873 obs · 3 cellules
Obs. / cellule
≥ 6 984
6 984–6 983
6 984–6 983
5 585–6 983
< 5 585

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

Climate

Mean T°

11,2°C

Annual rain

847mm

Warmest m°

22,3°C

Coldest m°

2,3°C

Elevation: 101 m on average (min 84 m, max 126 m)

Bioclimatic detailsExpert
Annual mean temp.
11,2°C
Annual rain
847mm
Warmest month
22,3°C
Coldest month
2,3°C
Mean alt.
101m
Min
84m
Max
126m
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

6,2

Org. C

33,0g/kg

Clay

22,2%

Sand

16,8%

Silt

61,1%

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

Dominant lithology: ssGLiMaggregated to Ille-et-Vilaine

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
55,2g/kg
Clay
21,7%
Sand
17,0%
Silt
61,4%
5–15 cm
pH H₂O
6,2
Org. C
22,2g/kg
Clay
22,4%
Sand
16,3%
Silt
61,4%
15–30 cm
pH H₂O
6,2
Org. C
21,5g/kg
Clay
22,5%
Sand
17,0%
Silt
60,4%

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

Land cover

Forest9.0%
Crops54.2%
Built-up1.4%
Bare soil0.6%
Other (grassland, water…)34.9%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

4,6km

Basins crossed

1

Max stream order

1

Max drainage

1 599km²

Discharge in basins

0,1m³/s

Mean precip.

736mm/an

Mean T°

11,0°C

Moisture idx

-0,07

Max snow

6%

Mean runoff

492mm/an

Mean elev. (basins)

88m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

1hab/km²

Night light

0,0nW

Built-up

136,0%

Pesticides

44,9kg/km²

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

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.