Ontologia

Subdivision · FRA

Romans-sur-Isère 1er Canton

France

CfaTemperate, no dry season, hot summer(88 %)

Species observed

2 071

Observations

51 583

Area

66,5km²

Ecological tissue

Sample of 32 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 Romans-sur-Isère 1er Canton : 29 espèces + 3 bulles famille, 80 interactions GloBI documentées sur 4 types (connectance 16.1%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
32
Interactions affichées
80
Connectance
0.161
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

2 071 distinct species · 51 583 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

51 583 obs · 3 cellules
Obs. / cellule
≥ 26 597
26 597–26 596
26 597–26 596
20 031–26 596
< 20 031

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

Climate

Mean T°

12,4°C

Annual rain

1 042mm

Warmest m°

26,6°C

Coldest m°

-0,5°C

Elevation: 247 m on average (min 153 m, max 429 m)

Bioclimatic detailsExpert
Annual mean temp.
12,4°C
Annual rain
1 042mm
Warmest month
26,6°C
Coldest month
-0,5°C
Mean alt.
247m
Min
153m
Max
429m
Std. dev.
65m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(88 %)Temperate

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

Soil & lithology

pH H₂O

6,7

Org. C

32,8g/kg

Clay

24,7%

Sand

36,8%

Silt

38,5%

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

Dominant lithology: smGLiMaggregated to Drôme

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,7
Org. C
58,7g/kg
Clay
22,9%
Sand
37,7%
Silt
39,4%
5–15 cm
pH H₂O
6,8
Org. C
22,1g/kg
Clay
22,7%
Sand
37,6%
Silt
39,7%
15–30 cm
pH H₂O
6,8
Org. C
17,8g/kg
Clay
28,6%
Sand
35,1%
Silt
36,3%

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

Land cover

Forest21.9%
Crops40.8%
Built-up1.9%
Bare soil1.8%
Other (grassland, water…)33.7%

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

Hydrology1 basins · 0 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

24,4km

Basins crossed

1

Max stream order

2

Max drainage

11 737km²

Discharge in basins

15,5m³/s

Mean precip.

886mm/an

Mean T°

11,2°C

Moisture idx

-0,06

Max snow

3%

Mean runoff

427mm/an

Mean elev. (basins)

317m

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

Human pressure

Pop. density

1hab/km²

Night light

0,4nW

Built-up

186,4%

Pesticides

46,4kg/km²

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

Protected areas1

IUCN Not Reported · 1

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN

Sub-administrations5

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.