Ontologia

Commune · FRA

Bretagne-de-Marsan

France

CfaTemperate, no dry season, hot summer(100 %)

Species observed

1 347

Observations

19 677

Area

13,4km²

Ecological tissue

Sample of 39 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 Bretagne-de-Marsan : 31 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 8 bulles famille, 87 interactions GloBI documentées sur 5 types (connectance 11.7%, filtre Serrano α=0.2). Les 8 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
39
Interactions affichées
87
Connectance
0.117
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

1 347 distinct species · 19 677 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

19 677 obs · 4 cellules
Obs. / cellule
≥ 8 987
8 987–8 986
5 323–8 986
5 323–5 322
< 5 323

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

Climate

Mean T°

13,9°C

Annual rain

972mm

Warmest m°

26,8°C

Coldest m°

2,8°C

Elevation: 80 m on average (min 70 m, max 88 m)

Bioclimatic detailsExpert
Annual mean temp.
13,9°C
Annual rain
972mm
Warmest month
26,8°C
Coldest month
2,8°C
Mean alt.
80m
Min
70m
Max
88m
Std. dev.
5m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate

CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)

Soil & lithology

pH H₂O

5,8

Org. C

35,6g/kg

Clay

19,3%

Sand

45,9%

Silt

34,8%

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

Dominant lithology: suGLiMaggregated to Landes

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,8
Org. C
61,1g/kg
Clay
19,4%
Sand
45,9%
Silt
34,7%
5–15 cm
pH H₂O
5,8
Org. C
25,3g/kg
Clay
18,2%
Sand
46,7%
Silt
35,2%
15–30 cm
pH H₂O
5,8
Org. C
20,3g/kg
Clay
20,3%
Sand
45,1%
Silt
34,7%

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

Land cover

Forest27.0%
Crops37.0%
Built-up1.3%
Bare soil0.9%
Other (grassland, water…)33.8%

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

Hydrology2 basins · 1 lakes · 1 rivers

Hydrology metrics for this exact territory

Stream length here

3,0km

Lake surface here

0,07km²

Basins crossed

2

Max stream order

1

Max drainage

3 524km²

Discharge in basins

1,3m³/s

Mean precip.

959mm/an

Mean T°

12,6°C

Moisture idx

-0,04

Max snow

2%

Mean runoff

562mm/an

Mean elev. (basins)

101m

Watersheds crossing here

Lakes (1, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

0,7nW

Built-up

129,0%

Pesticides

48,2kg/km²

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

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.