Ontologia

Subdivision · FRA

Arras-Sud

France

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

Species observed

726

Observations

4 726

Area

56,3km²

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 Arras-Sud : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 144 interactions GloBI sur 6 types (connectance 29.0%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
144
Connectance
0.290
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

726 distinct species · 4 726 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 726 obs · 1 cellules
Obs. / cellule
≥ 4 726
4 726–4 725
4 726–4 725
4 726–4 725
< 4 726

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

Climate

Mean T°

10,4°C

Annual rain

772mm

Warmest m°

22,0°C

Coldest m°

0,8°C

Elevation: 81 m on average (min 56 m, max 106 m)

Bioclimatic detailsExpert
Annual mean temp.
10,4°C
Annual rain
772mm
Warmest month
22,0°C
Coldest month
0,8°C
Mean alt.
81m
Min
56m
Max
106m
Std. dev.
9m
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

7,2

Org. C

20,7g/kg

Clay

23,7%

Sand

9,7%

Silt

66,7%

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

Dominant lithology: smGLiMaggregated to Pas-de-Calais

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,0
Org. C
30,9g/kg
Clay
22,1%
Sand
9,6%
Silt
68,2%
5–15 cm
pH H₂O
7,4
Org. C
16,8g/kg
Clay
23,9%
Sand
8,8%
Silt
67,4%
15–30 cm
pH H₂O
7,3
Org. C
14,5g/kg
Clay
25,1%
Sand
10,6%
Silt
64,4%

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

Land cover

Forest3.7%
Crops68.4%
Built-up2.7%
Bare soil1.1%
Other (grassland, water…)24.1%

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

Hydrology2 basins · 2 lakes · 3 rivers

Hydrology metrics for this exact territory

Stream length here

11,3km

Lake surface here

0,19km²

Basins crossed

2

Max stream order

4

Max drainage

530km²

Discharge in basins

0,8m³/s

Mean precip.

676mm/an

Mean T°

9,8°C

Moisture idx

-0,07

Max snow

6%

Mean runoff

456mm/an

Mean elev. (basins)

103m

Watersheds crossing here

Lakes (2, top by area)

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

Human pressure

Pop. density

2hab/km²

Night light

6,0nW

Built-up

271,8%

Pesticides

47,1kg/km²

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

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.