Ontologia

Commune · FRA

Vieux-Viel

France

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

Species observed

966

Observations

22 984

Area

9,1km²

Ecological tissue

Sample of 16 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 Vieux-Viel : 12 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 29 interactions GloBI sur 5 types (connectance 24.2%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
16
Interactions affichées
29
Connectance
0.242
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

966 distinct species · 22 984 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 984 obs · 1 cellules
Obs. / cellule
≥ 22 984
22 984–22 983
22 984–22 983
22 984–22 983
< 22 984

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

Climate

Mean T°

11,4°C

Annual rain

865mm

Warmest m°

21,7°C

Coldest m°

2,8°C

Elevation: 68 m on average (min 21 m, max 110 m)

Bioclimatic detailsExpert
Annual mean temp.
11,4°C
Annual rain
865mm
Warmest month
21,7°C
Coldest month
2,8°C
Mean alt.
68m
Min
21m
Max
110m
Std. dev.
26m
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

33,5g/kg

Clay

19,4%

Sand

23,5%

Silt

57,1%

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
56,2g/kg
Clay
18,5%
Sand
23,2%
Silt
58,4%
5–15 cm
pH H₂O
6,3
Org. C
25,1g/kg
Clay
19,0%
Sand
22,8%
Silt
58,2%
15–30 cm
pH H₂O
6,3
Org. C
19,2g/kg
Clay
20,6%
Sand
24,6%
Silt
54,8%

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

Land cover

Forest18.9%
Crops48.4%
Built-up0.8%
Bare soil0.6%
Other (grassland, water…)31.3%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

0,8km

Basins crossed

1

Max stream order

1

Max drainage

1 112km²

Discharge in basins

0,2m³/s

Mean precip.

748mm/an

Mean T°

11,0°C

Moisture idx

-0,03

Max snow

6%

Mean runoff

573mm/an

Mean elev. (basins)

91m

Watersheds crossing here

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

0hab/km²

Built-up

76,6%

Pesticides

46,9kg/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.