Ontologia

District · USA

District of Columbia

United States

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

Species observed

10 791

Observations

1 952 981

Area

166,1km²

Ecological tissue

Sample of 38 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 District of Columbia : 27 espèces reliées par 83 interactions GloBI sur 4 types (connectance 11.2%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
83
Connectance
0.112
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

10 791 distinct species · 1 952 981 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 952 981 obs · 5 cellules
Obs. / cellule
≥ 693 206
693 206–693 205
692 963–693 205
355 370–692 962
< 355 370

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

Climate

Mean T°

13,8°C

Annual rain

1 083mm

Warmest m°

31,0°C

Coldest m°

-2,4°C

Elevation: 42 m on average (min -2 m, max 107 m)

Bioclimatic detailsExpert
Annual mean temp.
13,8°C
Annual rain
1 083mm
Warmest month
31,0°C
Coldest month
-2,4°C
Mean alt.
42m
Min
-2m
Max
107m
Std. dev.
29m
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

4,8

Org. C

45,9g/kg

Clay

20,2%

Sand

44,2%

Silt

35,5%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,7
Org. C
97,3g/kg
Clay
19,1%
Sand
44,9%
Silt
36,0%
5–15 cm
pH H₂O
4,8
Org. C
28,7g/kg
Clay
19,2%
Sand
44,4%
Silt
36,4%
15–30 cm
pH H₂O
4,8
Org. C
11,9g/kg
Clay
22,4%
Sand
43,4%
Silt
34,2%

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

Land cover

Forest14.8%
Crops0.9%
Built-up14.8%
Bare soil0.5%
Other (grassland, water…)69.0%

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

Hydrology5 basins · 3 lakes · 13 rivers

Hydrology metrics for this exact territory

Stream length here

49,4km

Lake surface here

0,38km²

Basins crossed

5

Max stream order

6

Max drainage

30 317km²

Discharge in basins

10,8m³/s

Mean precip.

1 041mm/an

Mean T°

12,6°C

Moisture idx

-0,08

Max snow

3%

Mean runoff

461mm/an

Mean elev. (basins)

88m

Watersheds crossing here

Lakes (3, top by area)

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

Human pressure

Pop. density

29hab/km²

Night light

74,3nW

Built-up

1 479,9%

Pesticides

4,5kg/km²

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

Protected areas2

IUCN V · 1IUCN III · 1🌊 Marine · 2

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