Ontologia

Commune · FRA

Iholdy

France

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

Species observed

783

Observations

3 867

Area

22,1km²

Ecological tissue

Sample of 28 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 Iholdy : 17 espèces reliées par 103 interactions GloBI sur 6 types (connectance 20.8%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
103
Connectance
0.208
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

783 distinct species · 3 867 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

3 867 obs · 2 cellules
Obs. / cellule
≥ 2 295
2 295–2 294
2 295–2 294
2 295–2 294
< 2 295

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

Climate

Mean T°

13,3°C

Annual rain

1 539mm

Warmest m°

24,2°C

Coldest m°

3,1°C

Elevation: 229 m on average (min 160 m, max 373 m)

Bioclimatic detailsExpert
Annual mean temp.
13,3°C
Annual rain
1 539mm
Warmest month
24,2°C
Coldest month
3,1°C
Mean alt.
229m
Min
160m
Max
373m
Std. dev.
68m
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

5,9

Org. C

50,2g/kg

Clay

25,2%

Sand

28,4%

Silt

46,4%

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

Dominant lithology: scGLiMaggregated to Pyrénées-Atlantiques

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
79,8g/kg
Clay
24,5%
Sand
28,3%
Silt
47,2%
5–15 cm
pH H₂O
5,9
Org. C
41,6g/kg
Clay
25,2%
Sand
27,4%
Silt
47,4%
15–30 cm
pH H₂O
5,9
Org. C
29,1g/kg
Clay
26,0%
Sand
29,5%
Silt
44,5%

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

Land cover

Forest26.9%
Crops27.1%
Built-up0.5%
Bare soil0.9%
Other (grassland, water…)44.7%

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

Hydrology2 basins · 0 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

4,6km

Basins crossed

2

Max stream order

2

Max drainage

15 788km²

Discharge in basins

6,5m³/s

Mean precip.

1 186mm/an

Mean T°

12,9°C

Moisture idx

0,22

Max snow

4%

Mean runoff

909mm/an

Mean elev. (basins)

179m

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

0,3nW

Built-up

45,6%

Pesticides

41,3kg/km²

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

Protected areas2

IUCN Not Reported · 2🌊 Marine · 1

La Nive

IUCN Not Reported

Special Areas of Conservation (Habitats Directive) · 2017

95 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.