Ontologia

Commune · FRA

Ham-sous-Varsberg

France

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

Species observed

1 204

Observations

9 553

Area

6,3km²

Ecological tissue

Sample of 44 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 Ham-sous-Varsberg : 39 espèces + 5 bulles famille, 97 interactions GloBI documentées sur 6 types (connectance 10.3%, filtre Serrano α=0.2). Les 5 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
44
Interactions affichées
97
Connectance
0.102
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

1 204 distinct species · 9 553 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

9 554 obs · 1 cellules
Obs. / cellule
≥ 9 554
9 554–9 553
9 554–9 553
9 554–9 553
< 9 554

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

Climate

Mean T°

10,0°C

Annual rain

850mm

Warmest m°

23,4°C

Coldest m°

-1,1°C

Elevation: 242 m on average (min 225 m, max 281 m)

Bioclimatic detailsExpert
Annual mean temp.
10,0°C
Annual rain
850mm
Warmest month
23,4°C
Coldest month
-1,1°C
Mean alt.
242m
Min
225m
Max
281m
Std. dev.
15m
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

6,3

Org. C

35,1g/kg

Clay

32,4%

Sand

14,8%

Silt

52,7%

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

Dominant lithology: scGLiMaggregated to Moselle

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,2
Org. C
59,0g/kg
Clay
32,4%
Sand
14,9%
Silt
52,6%
5–15 cm
pH H₂O
6,4
Org. C
27,8g/kg
Clay
32,6%
Sand
14,3%
Silt
53,1%
15–30 cm
pH H₂O
6,4
Org. C
18,5g/kg
Clay
32,2%
Sand
15,2%
Silt
52,5%

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

Land cover

Forest32.3%
Crops28.0%
Built-up3.3%
Bare soil0.3%
Other (grassland, water…)36.1%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

3,8km

Basins crossed

1

Max stream order

2

Max drainage

4 729km²

Discharge in basins

0,3m³/s

Mean precip.

762mm/an

Mean T°

9,3°C

Moisture idx

-0,03

Max snow

8%

Mean runoff

322mm/an

Mean elev. (basins)

267m

Rivers / streams (1, ord ≥ 4)

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

Human pressure

Pop. density

2hab/km²

Night light

0,9nW

Built-up

325,1%

Pesticides

31,0kg/km²

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

Protected areas1

IUCN IV · 1

le neuglen

IUCN IV

Land acquired by a regional conservatory of natural areas · 1900

0 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.