Ontologia

Commune · FRA

Pont-Saint-Martin

France

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

Species observed

1 918

Observations

22 755

Area

21,8km²

Ecological tissue

Sample of 40 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 Pont-Saint-Martin : 28 espèces reliées par 95 interactions GloBI sur 6 types (connectance 12.2%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
95
Connectance
0.122
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

1 918 distinct species · 22 755 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 755 obs · 4 cellules
Obs. / cellule
≥ 8 221
8 221–8 220
7 009–8 220
7 009–7 008
< 7 009

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

Climate

Mean T°

12,2°C

Annual rain

867mm

Warmest m°

23,7°C

Coldest m°

2,9°C

Elevation: 14 m on average (min 5 m, max 30 m)

Bioclimatic detailsExpert
Annual mean temp.
12,2°C
Annual rain
867mm
Warmest month
23,7°C
Coldest month
2,9°C
Mean alt.
14m
Min
5m
Max
30m
Std. dev.
5m
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

6,0

Org. C

41,9g/kg

Clay

17,8%

Sand

39,1%

Silt

43,1%

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
6,0
Org. C
70,8g/kg
Clay
17,8%
Sand
40,1%
Silt
42,1%
5–15 cm
pH H₂O
6,1
Org. C
31,0g/kg
Clay
18,0%
Sand
39,3%
Silt
42,7%
15–30 cm
pH H₂O
6,1
Org. C
23,9g/kg
Clay
17,7%
Sand
37,8%
Silt
44,6%

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

Land cover

Forest17.8%
Crops33.7%
Built-up3.7%
Bare soil1.0%
Other (grassland, water…)43.9%

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

Hydrology1 basins · 0 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

7,2km

Basins crossed

1

Max stream order

2

Max drainage

1 269km²

Discharge in basins

0,4m³/s

Mean precip.

797mm/an

Mean T°

11,7°C

Moisture idx

-0,02

Max snow

4%

Mean runoff

531mm/an

Mean elev. (basins)

33m

Watersheds crossing here

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

Human pressure

Pop. density

2hab/km²

Night light

2,1nW

Built-up

366,6%

Pesticides

44,2kg/km²

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

Protected areas3

IUCN Not Reported · 3

Lac de Grand-Lieu

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2015

63 km²

Lac de Grand-Lieu

IUCN Not Reported

Wetland of International Importance (Ramsar Site) · 1995

62 km²

Lac de Grand Lieu

IUCN Not Reported

Special Protection Area (Birds Directive) · 2019

57 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.