Ontologia

Commune · FRA

Houlette

France

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

Species observed

485

Observations

2 264

Area

7,3km²

Ecological tissue

Sample of 36 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 Houlette : 29 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 91 interactions GloBI sur 5 types (connectance 12.9%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
91
Connectance
0.129
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

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

Species present

485 distinct species · 2 264 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 264 obs · 1 cellules
Obs. / cellule
≥ 2 264
2 264–2 263
2 264–2 263
2 264–2 263
< 2 264

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

Climate

Mean T°

12,9°C

Annual rain

842mm

Warmest m°

25,6°C

Coldest m°

2,7°C

Elevation: 29 m on average (min 23 m, max 47 m)

Bioclimatic detailsExpert
Annual mean temp.
12,9°C
Annual rain
842mm
Warmest month
25,6°C
Coldest month
2,7°C
Mean alt.
29m
Min
23m
Max
47m
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

7,2

Org. C

30,3g/kg

Clay

36,1%

Sand

19,3%

Silt

44,6%

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

Dominant lithology: scGLiMaggregated to Charente

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,1
Org. C
48,8g/kg
Clay
34,1%
Sand
19,8%
Silt
46,1%
5–15 cm
pH H₂O
7,2
Org. C
23,7g/kg
Clay
38,3%
Sand
17,5%
Silt
44,2%
15–30 cm
pH H₂O
7,3
Org. C
18,3g/kg
Clay
36,1%
Sand
20,6%
Silt
43,4%

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

Land cover

Forest11.1%
Crops53.2%
Built-up0.9%
Bare soil2.2%
Other (grassland, water…)32.6%

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

Hydrology1 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

3,5km

Basins crossed

1

Max stream order

2

Max drainage

5 486km²

Discharge in basins

0,3m³/s

Mean precip.

859mm/an

Mean T°

12,1°C

Moisture idx

-0,07

Max snow

2%

Mean runoff

535mm/an

Mean elev. (basins)

82m

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

Night light

0,0nW

Built-up

88,4%

Pesticides

41,5kg/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.