Ontologia

County · USA

De Witt

United States

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

Species observed

1 793

Observations

125 526

Area

1 046,8km²

Ecological tissue

Sample of 36 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 De Witt : 27 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 71 interactions GloBI sur 3 types (connectance 11.3%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
71
Connectance
0.113
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

1 793 distinct species · 125 526 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

125 526 obs · 29 cellules
Obs. / cellule
≥ 27 115
22 847–27 114
1 790–22 846
744–1 789
< 744

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

Climate

Mean T°

11,4°C

Annual rain

1 029mm

Warmest m°

28,8°C

Coldest m°

-6,7°C

Elevation: 219 m on average (min 186 m, max 244 m)

Bioclimatic detailsExpert
Annual mean temp.
11,4°C
Annual rain
1 029mm
Warmest month
28,8°C
Coldest month
-6,7°C
Mean alt.
219m
Min
186m
Max
244m
Std. dev.
11m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(100 %)Cold

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

Soil & lithology

pH H₂O

6,3

Org. C

24,9g/kg

Clay

31,1%

Sand

4,7%

Silt

64,2%

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

Dominant lithology: scGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,3
Org. C
36,4g/kg
Clay
30,2%
Sand
5,0%
Silt
64,8%
5–15 cm
pH H₂O
6,3
Org. C
22,2g/kg
Clay
30,2%
Sand
4,7%
Silt
65,1%
15–30 cm
pH H₂O
6,2
Org. C
16,2g/kg
Clay
33,0%
Sand
4,4%
Silt
62,7%

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

Land cover

Forest8.6%
Crops81.1%
Built-up0.4%
Bare soil0.1%
Other (grassland, water…)9.7%

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

Hydrology8 basins · 2 lakes · 8 rivers

Hydrology metrics for this exact territory

Stream length here

155,2km

Lake surface here

18,87km²

Basins crossed

8

Max stream order

4

Max drainage

2 229km²

Discharge in basins

15,9m³/s

Mean precip.

962mm/an

Mean T°

10,9°C

Moisture idx

-0,12

Max snow

8%

Mean runoff

299mm/an

Mean elev. (basins)

215m

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

36,8%

Pesticides

8,0kg/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