Ontologia

Commune · FRA

Le Ham

France

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

Species observed

360

Observations

601

Area

25km²

Ecological tissue

Sample of 45 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 Le Ham : 33 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 107 interactions GloBI sur 7 types (connectance 10.3%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
46
Interactions affichées
107
Connectance
0.103
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

360 distinct species · 601 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

601 obs · 1 cellules
Obs. / cellule
≥ 601
601–600
601–600
601–600
< 601

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

Climate

Mean T°

10,6°C

Annual rain

884mm

Warmest m°

22,0°C

Coldest m°

1,4°C

Elevation: 209 m on average (min 167 m, max 287 m)

Bioclimatic detailsExpert
Annual mean temp.
10,6°C
Annual rain
884mm
Warmest month
22,0°C
Coldest month
1,4°C
Mean alt.
209m
Min
167m
Max
287m
Std. dev.
30m
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

33,5g/kg

Clay

22,3%

Sand

21,5%

Silt

56,3%

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

Dominant lithology: ssGLiMaggregated to Mayenne

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
51,4g/kg
Clay
21,3%
Sand
21,8%
Silt
57,0%
5–15 cm
pH H₂O
6,0
Org. C
27,8g/kg
Clay
21,8%
Sand
20,7%
Silt
57,4%
15–30 cm
pH H₂O
6,0
Org. C
21,2g/kg
Clay
23,6%
Sand
21,9%
Silt
54,4%

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

Land cover

Forest14.8%
Crops53.5%
Built-up0.5%
Bare soil0.5%
Other (grassland, water…)30.6%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

4,4km

Basins crossed

2

Max stream order

2

Max drainage

2 356km²

Discharge in basins

0,4m³/s

Mean precip.

762mm/an

Mean T°

10,0°C

Moisture idx

-0,03

Max snow

6%

Mean runoff

452mm/an

Mean elev. (basins)

205m

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

52,4%

Pesticides

45,4kg/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.