Ontologia

Commune · FRA

Valence

France

CfaTemperate, no dry season, hot summer(100 %)

Species observed

1 854

Observations

17 457

Area

36,9km²

Ecological tissue

Sample of 37 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 Valence : 31 espèces + 6 bulles famille, 91 interactions GloBI documentées sur 5 types (connectance 13.7%, filtre Serrano α=0.2). Les 6 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
37
Interactions affichées
91
Connectance
0.137
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

1 854 distinct species · 17 457 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

17 457 obs · 2 cellules
Obs. / cellule
≥ 9 141
9 141–9 140
9 141–9 140
9 141–9 140
< 9 141

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

Climate

Mean T°

13,2°C

Annual rain

965mm

Warmest m°

27,7°C

Coldest m°

0,3°C

Elevation: 142 m on average (min 107 m, max 174 m)

Bioclimatic detailsExpert
Annual mean temp.
13,2°C
Annual rain
965mm
Warmest month
27,7°C
Coldest month
0,3°C
Mean alt.
142m
Min
107m
Max
174m
Std. dev.
17m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate

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

Soil & lithology

pH H₂O

6,9

Org. C

33,3g/kg

Clay

27,4%

Sand

35,4%

Silt

37,2%

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
6,8
Org. C
59,3g/kg
Clay
25,9%
Sand
36,4%
Silt
37,7%
5–15 cm
pH H₂O
6,9
Org. C
22,9g/kg
Clay
25,4%
Sand
36,1%
Silt
38,6%
15–30 cm
pH H₂O
6,9
Org. C
17,7g/kg
Clay
31,0%
Sand
33,7%
Silt
35,3%

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

Land cover

Forest3.7%
Crops30.7%
Built-up10.5%
Bare soil1.3%
Other (grassland, water…)53.8%

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

Hydrology1 basins · 0 lakes · 4 rivers

Hydrology metrics for this exact territory

Stream length here

4,2km

Basins crossed

1

Max stream order

7

Max drainage

67 306km²

Discharge in basins

33,1m³/s

Mean precip.

856mm/an

Mean T°

10,1°C

Moisture idx

-0,03

Max snow

9%

Mean runoff

433mm/an

Mean elev. (basins)

551m

Watersheds crossing here

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

Human pressure

Pop. density

10hab/km²

Night light

12,3nW

Built-up

1 048,8%

Pesticides

46,0kg/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.