Ontologia

Commune · FRA

Mérens

France

CfaTemperate, no dry season, hot summer(71 %)

Species observed

817

Observations

6 130

Area

3,9km²

Ecological tissue

Sample of 44 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 Mérens : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 128 interactions GloBI sur 5 types (connectance 12.9%, filtre Serrano α=0.2). 15 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
128
Connectance
0.129
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

817 distinct species · 6 130 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

6 130 obs · 2 cellules
Obs. / cellule
≥ 4 861
4 861–4 860
4 861–4 860
4 861–4 860
< 4 861

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

Climate

Mean T°

13,4°C

Annual rain

759mm

Warmest m°

26,3°C

Coldest m°

2,2°C

Elevation: 178 m on average (min 149 m, max 210 m)

Bioclimatic detailsExpert
Annual mean temp.
13,4°C
Annual rain
759mm
Warmest month
26,3°C
Coldest month
2,2°C
Mean alt.
178m
Min
149m
Max
210m
Std. dev.
18m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(71 %)Temperate

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

Soil & lithology

pH H₂O

7,3

Org. C

31,7g/kg

Clay

32,7%

Sand

22,7%

Silt

44,6%

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

Dominant lithology: suGLiMaggregated to Gers

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,3
Org. C
61,1g/kg
Clay
31,9%
Sand
22,3%
Silt
45,8%
5–15 cm
pH H₂O
7,3
Org. C
16,6g/kg
Clay
32,4%
Sand
21,9%
Silt
45,6%
15–30 cm
pH H₂O
7,3
Org. C
17,3g/kg
Clay
33,7%
Sand
23,7%
Silt
42,5%

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

Land cover

Forest6.1%
Crops75.0%
Built-up0.3%
Bare soil2.0%
Other (grassland, water…)16.6%

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

Hydrology2 basins · 0 lakes · 0 rivers

Hydrology metrics for this exact territory

Basins crossed

2

Max drainage

2 882km²

Discharge in basins

0,0m³/s

Mean precip.

776mm/an

Mean T°

12,2°C

Moisture idx

-0,21

Max snow

2%

Mean runoff

277mm/an

Mean elev. (basins)

195m

Watersheds crossing here

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

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

29,1%

Pesticides

46,3kg/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.