Ontologia

Subdivision · FRA

Merville

France

CfbTemperate, no dry season, warm summer(100 %)

Species observed

1 996

Observations

60 690

Area

83,1km²

Ecological tissue

Sample of 35 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 Merville : 23 espèces reliées par 117 interactions GloBI sur 6 types (connectance 19.7%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
35
Interactions affichées
117
Connectance
0.197
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

1 996 distinct species · 60 690 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

60 690 obs · 4 cellules
Obs. / cellule
≥ 23 655
23 655–23 654
13 009–23 654
13 009–13 008
< 13 009

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

Climate

Mean T°

10,7°C

Annual rain

795mm

Warmest m°

21,9°C

Coldest m°

1,4°C

Elevation: 17 m on average (min 16 m, max 20 m)

Bioclimatic detailsExpert
Annual mean temp.
10,7°C
Annual rain
795mm
Warmest month
21,9°C
Coldest month
1,4°C
Mean alt.
17m
Min
16m
Max
20m
Std. dev.
1m
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

6,8

Org. C

28,3g/kg

Clay

28,4%

Sand

19,1%

Silt

52,5%

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

Dominant lithology: smGLiMaggregated to Nord

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,6
Org. C
44,0g/kg
Clay
27,7%
Sand
18,9%
Silt
53,4%
5–15 cm
pH H₂O
6,9
Org. C
22,1g/kg
Clay
29,4%
Sand
18,6%
Silt
52,1%
15–30 cm
pH H₂O
6,9
Org. C
18,9g/kg
Clay
28,2%
Sand
19,8%
Silt
52,0%

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

Land cover

Forest3.8%
Crops66.3%
Built-up2.7%
Bare soil0.7%
Other (grassland, water…)26.5%

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

Hydrology3 basins · 0 lakes · 12 rivers

Hydrology metrics for this exact territory

Stream length here

43,5km

Basins crossed

3

Max stream order

4

Max drainage

1 808km²

Discharge in basins

2,9m³/s

Mean precip.

669mm/an

Mean T°

10,2°C

Moisture idx

-0,03

Max snow

8%

Mean runoff

480mm/an

Mean elev. (basins)

37m

Watersheds crossing here

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

Human pressure

Pop. density

2hab/km²

Night light

3,8nW

Built-up

267,8%

Pesticides

47,7kg/km²

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

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.