Caps Et Marais D\'Opale
IUCN VRegional Nature Park · 1986
1 332 km²
Subdivision · FRA
Saint-Omer-Nord
France
CfbTemperate, no dry season, warm summer(100 %)
Species observed
1 711
Observations
24 089
Area
65,5km²
Ecological tissue
Sample of 36 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 Saint-Omer-Nord : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 112 interactions GloBI sur 6 types (connectance 16.8%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
37
Interactions affichées
112
Connectance
0.168
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
1 711 distinct species · 24 089 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,6°C
Annual rain
820mm
Warmest m°
21,5°C
Coldest m°
1,5°C
Elevation: 30 m on average (min 2 m, max 148 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,6°C
Annual rain
820mm
Warmest month
21,5°C
Coldest month
1,5°C
Mean alt.
30m
Min
2m
Max
148m
Std. dev.
33m
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
6,9
Org. C
28,6g/kg
Clay
26,7%
Sand
16,7%
Silt
56,6%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: smGLiMaggregated to Pas-de-Calais
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,8
Org. C
41,9g/kg
Clay
26,1%
Sand
16,4%
Silt
57,5%
5–15 cm
pH H₂O
7,0
Org. C
24,3g/kg
Clay
27,3%
Sand
15,6%
Silt
57,1%
15–30 cm
pH H₂O
6,9
Org. C
19,7g/kg
Clay
26,6%
Sand
18,1%
Silt
55,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest13.1%
Crops55.2%
Built-up1.7%
Bare soil1.0%
Other (grassland, water…)29.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology1 basins · 0 lakes · 5 rivers
Hydrology metrics for this exact territory
Stream length here
21,8km
Basins crossed
1
Max stream order
3
Max drainage
934km²
Discharge in basins
1,2m³/s
Mean precip.
666mm/an
Mean T°
10,1°C
Moisture idx
0,03
Max snow
8%
Mean runoff
555mm/an
Mean elev. (basins)
81m
Watersheds crossing here
Rivers / streams (5, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,9nW
Built-up
166,0%
Pesticides
46,4kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas11
IUCN IV · 7IUCN Not Reported · 3IUCN V · 1🌊 Marine · 1
Le Marais audomarois
IUCN Not ReportedWetland of International Importance (Ramsar Site) · 2008
37 km²
Prairies, marais tourbeux, forêts et bois de la cuvette audomaroise et de ses versants
IUCN Not ReportedSpecial Areas of Conservation (Habitats Directive) · 2015
6 km²
Cuvette de Clairmarais - Nieurlet - Noordpeene
IUCN IVBiotope Protection Order · 2023
5 km²
Marais audomarois
IUCN IVLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy) · 2009
3 km²
Le Romelaëre, les marais de booneghem et de la Canarderie
IUCN IVBiotope Protection Order · 2023
2 km²
Complete list11 protected areas
- Caps Et Marais D\'OpaleRegional Nature ParkIUCN V19861 332 km²
- Le Marais audomaroisWetland of International Importance (Ramsar Site)IUCN Not Reported200837 km²
- Prairies, marais tourbeux, forêts et bois de la cuvette audomaroise et de ses versantsSpecial Areas of Conservation (Habitats Directive)IUCN Not Reported20156 km²
- Cuvette de Clairmarais - Nieurlet - NoordpeeneBiotope Protection OrderIUCN IV20235 km²
- Marais audomaroisLand acquired by Conservatoire du Littoral (national seaside and lakeside conservancy)IUCN IV20093 km²
- Le Romelaëre, les marais de booneghem et de la CanarderieBiotope Protection OrderIUCN IV20232 km²
- le Marais du Bachelin-Tourniquet et de Salperwick PaturettesBiotope Protection OrderIUCN IV20232 km²
- Marais AudomaroisSpecial Protection Area (Birds Directive)IUCN Not Reported20062 km²
- Étangs Du RomelaëreNational Nature ReserveIUCN IV20081 km²
- Long ChêneForest Managed Biological ReserveIUCN IV19820 km²
- Marais Saint-AldegondeBiotope Protection OrderIUCN IV20230 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN
Sub-administrations8
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.