Ontologia

Commune · FRA

Trans-sur-Erdre

France

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

Species observed

1 298

Observations

9 869

Area

22,9km²

Ecological tissue

Sample of 38 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 Trans-sur-Erdre : 25 espèces reliées par 106 interactions GloBI sur 6 types (connectance 15.1%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
106
Connectance
0.151
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Species present

1 298 distinct species · 9 869 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 869 obs · 3 cellules
Obs. / cellule
≥ 6 764
6 764–6 763
6 764–6 763
1 570–6 763
< 1 570

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

Climate

Mean T°

11,9°C

Annual rain

816mm

Warmest m°

23,5°C

Coldest m°

2,5°C

Elevation: 39 m on average (min 31 m, max 46 m)

Bioclimatic detailsExpert
Annual mean temp.
11,9°C
Annual rain
816mm
Warmest month
23,5°C
Coldest month
2,5°C
Mean alt.
39m
Min
31m
Max
46m
Std. dev.
4m
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

40,1g/kg

Clay

16,7%

Sand

31,3%

Silt

52,0%

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

Dominant lithology: ssGLiMaggregated to Loire-Atlantique

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,8
Org. C
62,8g/kg
Clay
14,2%
Sand
32,6%
Silt
53,2%
5–15 cm
pH H₂O
5,8
Org. C
29,6g/kg
Clay
17,2%
Sand
30,6%
Silt
52,2%
15–30 cm
pH H₂O
5,9
Org. C
27,9g/kg
Clay
18,6%
Sand
30,7%
Silt
50,7%

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

Land cover

Forest9.6%
Crops61.1%
Built-up0.8%
Bare soil0.5%
Other (grassland, water…)28.0%

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

Hydrology2 basins · 0 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

8,0km

Basins crossed

2

Max stream order

3

Max drainage

111 742km²

Discharge in basins

0,3m³/s

Mean precip.

751mm/an

Mean T°

11,4°C

Moisture idx

-0,09

Max snow

5%

Mean runoff

437mm/an

Mean elev. (basins)

44m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

76,4%

Pesticides

43,7kg/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.