Ontologia

County · USA

Marion

United States

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

Species observed

1 906

Observations

23 048

Area

1 922,4km²

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 Marion : 32 espèces reliées par 83 interactions GloBI sur 4 types (connectance 8.4%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
45
Interactions affichées
83
Connectance
0.084
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

1 906 distinct species · 23 048 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

23 048 obs · 72 cellules
Obs. / cellule
≥ 3 153
848–3 152
222–847
94–221
< 94

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

Climate

Mean T°

16,5°C

Annual rain

1 520mm

Warmest m°

31,5°C

Coldest m°

1,8°C

Elevation: 194 m on average (min 119 m, max 282 m)

Bioclimatic detailsExpert
Annual mean temp.
16,5°C
Annual rain
1 520mm
Warmest month
31,5°C
Coldest month
1,8°C
Mean alt.
194m
Min
119m
Max
282m
Std. dev.
36m
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

5,3

Org. C

22,4g/kg

Clay

27,8%

Sand

29,1%

Silt

43,1%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,3
Org. C
44,7g/kg
Clay
24,3%
Sand
31,0%
Silt
44,7%
5–15 cm
pH H₂O
5,3
Org. C
15,4g/kg
Clay
26,3%
Sand
29,9%
Silt
43,8%
15–30 cm
pH H₂O
5,3
Org. C
7,1g/kg
Clay
33,0%
Sand
26,4%
Silt
40,7%

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

Land cover

Forest74.0%
Crops3.9%
Built-up0.4%
Bare soil0.3%
Other (grassland, water…)21.4%

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

Hydrology5 basins · 2 lakes · 12 rivers

Hydrology metrics for this exact territory

Stream length here

221,2km

Lake surface here

3,27km²

Basins crossed

5

Max stream order

4

Max drainage

2 400km²

Discharge in basins

42,4m³/s

Mean precip.

1 478mm/an

Mean T°

15,7°C

Moisture idx

0,07

Mean runoff

690mm/an

Mean elev. (basins)

158m

Watersheds crossing here

Lakes (2, top by area)

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

Human pressure

Pop. density

0hab/km²

Night light

0,6nW

Built-up

40,5%

Pesticides

13,0kg/km²

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

Protected areas2

IUCN V · 2

WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN