Ontologia

Commune · FRA

Romagnieu

France

CfaTemperate, no dry season, hot summer(94 %)

Species observed

861

Observations

5 768

Area

17,6km²

Ecological tissue

Sample of 26 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 Romagnieu : 23 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 3 bulles famille, 51 interactions GloBI documentées sur 2 types (connectance 15.7%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
26
Interactions affichées
51
Connectance
0.157
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

861 distinct species · 5 768 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 768 obs · 1 cellules
Obs. / cellule
≥ 5 768
5 768–5 767
5 768–5 767
5 768–5 767
< 5 768

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

Climate

Mean T°

12,1°C

Annual rain

1 076mm

Warmest m°

26,0°C

Coldest m°

-2,0°C

Elevation: 268 m on average (min 222 m, max 319 m)

Bioclimatic detailsExpert
Annual mean temp.
12,1°C
Annual rain
1 076mm
Warmest month
26,0°C
Coldest month
-2,0°C
Mean alt.
268m
Min
222m
Max
319m
Std. dev.
25m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(94 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

6,6

Org. C

40,8g/kg

Clay

24,3%

Sand

35,0%

Silt

40,7%

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

Dominant lithology: scGLiMaggregated to Isère

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
67,6g/kg
Clay
22,6%
Sand
36,2%
Silt
41,3%
5–15 cm
pH H₂O
6,6
Org. C
32,4g/kg
Clay
22,6%
Sand
35,1%
Silt
42,2%
15–30 cm
pH H₂O
6,6
Org. C
22,4g/kg
Clay
27,8%
Sand
33,6%
Silt
38,6%

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

Land cover

Forest18.6%
Crops43.3%
Built-up1.5%
Bare soil1.4%
Other (grassland, water…)35.2%

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

Hydrology2 basins · 1 lakes · 2 rivers

Hydrology metrics for this exact territory

Stream length here

6,4km

Lake surface here

0,12km²

Basins crossed

2

Max stream order

4

Max drainage

15 525km²

Discharge in basins

1,6m³/s

Mean precip.

1 030mm/an

Mean T°

8,9°C

Moisture idx

0,15

Max snow

18%

Mean runoff

580mm/an

Mean elev. (basins)

716m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

1,6nW

Built-up

153,1%

Pesticides

43,7kg/km²

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

Protected areas1

IUCN IV · 1

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.