Ripisylves et forêts alluviales de la rivière Drôme et de ses affluents
IUCN IVNatural habitats protection Order · 2022
16 km²
Commune · FRA
Crest
France
CfaTemperate, no dry season, hot summer(95 %)
Species observed
1 927
Observations
19 309
Area
23,3km²
Ecological tissue
Sample of 31 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 Crest : 24 espèces + 7 bulles famille, 84 interactions GloBI documentées sur 4 types (connectance 18.1%, filtre Serrano α=0.2). Les 7 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).
Espèces affichées
31
Interactions affichées
84
Connectance
0.181
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
1 927 distinct species · 19 309 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,8°C
Annual rain
1 108mm
Warmest m°
27,2°C
Coldest m°
-0,1°C
Elevation: 250 m on average (min 164 m, max 403 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,8°C
Annual rain
1 108mm
Warmest month
27,2°C
Coldest month
-0,1°C
Mean alt.
250m
Min
164m
Max
403m
Std. dev.
58m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(95 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
7,3
Org. C
30,3g/kg
Clay
29,3%
Sand
30,7%
Silt
40,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Drôme
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
7,3
Org. C
51,0g/kg
Clay
27,6%
Sand
31,4%
Silt
41,1%
5–15 cm
pH H₂O
7,3
Org. C
20,6g/kg
Clay
27,9%
Sand
31,1%
Silt
41,0%
15–30 cm
pH H₂O
7,3
Org. C
19,3g/kg
Clay
32,6%
Sand
29,6%
Silt
37,9%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest19.4%
Crops36.8%
Built-up3.5%
Bare soil2.1%
Other (grassland, water…)38.2%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 4 rivers
Hydrology metrics for this exact territory
Stream length here
9,6km
Basins crossed
1
Max stream order
4
Max drainage
1 663km²
Discharge in basins
0,3m³/s
Mean precip.
957mm/an
Mean T°
8,9°C
Moisture idx
0,10
Max snow
14%
Mean runoff
420mm/an
Mean elev. (basins)
785m
Watersheds crossing here
Rivers / streams (4, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Night light
1,6nW
Built-up
355,5%
Pesticides
42,7kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas2
IUCN IV · 2
pelouses seches de bourbousson
IUCN IVLand acquired by a regional conservatory of natural areas · 2005
0 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.