Marais et tourbières des vallées de la Somme et de l’Avre
IUCN IVWetland of International Importance (Ramsar Site) · 2017
131 km²
Commune · FRA
Curlu
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
863
Observations
5 402
Area
6,4km²
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 Curlu : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 6 types (connectance 14.9%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
32
Interactions affichées
74
Connectance
0.149
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
863 distinct species · 5 402 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,5°C
Annual rain
764mm
Warmest m°
22,2°C
Coldest m°
0,8°C
Elevation: 81 m on average (min 46 m, max 113 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,5°C
Annual rain
764mm
Warmest month
22,2°C
Coldest month
0,8°C
Mean alt.
81m
Min
46m
Max
113m
Std. dev.
20m
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
7,1
Org. C
20,9g/kg
Clay
25,4%
Sand
9,3%
Silt
65,2%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Somme
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,9
Org. C
32,4g/kg
Clay
23,2%
Sand
9,7%
Silt
67,1%
5–15 cm
pH H₂O
7,2
Org. C
15,8g/kg
Clay
26,0%
Sand
8,8%
Silt
65,2%
15–30 cm
pH H₂O
7,2
Org. C
14,4g/kg
Clay
27,0%
Sand
9,5%
Silt
63,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest9.7%
Crops70.9%
Built-up0.5%
Bare soil1.5%
Other (grassland, water…)17.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 1 lakes · 1 rivers
Hydrology metrics for this exact territory
Stream length here
2,3km
Lake surface here
0,26km²
Basins crossed
1
Max stream order
4
Max drainage
1 804km²
Discharge in basins
0,1m³/s
Mean precip.
652mm/an
Mean T°
9,9°C
Moisture idx
-0,15
Max snow
5%
Mean runoff
337mm/an
Mean elev. (basins)
89m
Watersheds crossing here
Lakes (1, top by area)
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
45,1%
Pesticides
48,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas5
IUCN IV · 3IUCN Not Reported · 2
Étangs et marais du bassin de la Somme
IUCN Not ReportedSpecial Protection Area (Birds Directive) · 2007
52 km²
Moyenne vallée de la Somme
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2008
18 km²
les marais communaux d eclusier vaux
IUCN IVLand acquired by a regional conservatory of natural areas · 2007
1 km²
notre dame de vaux
IUCN IVLand acquired by a regional conservatory of natural areas · 1995
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.