Ontologia

Parish · USA

Ascension

United States

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

Species observed

1 832

Observations

54 571

Area

786,1km²

Ecological tissue

Sample of 49 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 Ascension : 36 espèces reliées par 92 interactions GloBI sur 4 types (connectance 7.8%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
49
Interactions affichées
92
Connectance
0.078
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

1 832 distinct species · 54 571 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

54 571 obs · 19 cellules
Obs. / cellule
≥ 11 096
9 054–11 095
4 440–9 053
1 966–4 439
< 1 966

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

Climate

Mean T°

19,9°C

Annual rain

1 905mm

Warmest m°

31,8°C

Coldest m°

7,3°C

Elevation: 2 m on average (min -8 m, max 11 m)

Bioclimatic detailsExpert
Annual mean temp.
19,9°C
Annual rain
1 905mm
Warmest month
31,8°C
Coldest month
7,3°C
Mean alt.
2m
Min
-8m
Max
11m
Std. dev.
2m
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

6,1

Org. C

44,0g/kg

Clay

39,8%

Sand

5,2%

Silt

55,0%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,1
Org. C
63,1g/kg
Clay
39,5%
Sand
5,3%
Silt
55,2%
5–15 cm
pH H₂O
6,1
Org. C
38,6g/kg
Clay
39,3%
Sand
5,2%
Silt
55,4%
15–30 cm
pH H₂O
6,2
Org. C
30,1g/kg
Clay
40,7%
Sand
4,9%
Silt
54,3%

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

Land cover

Forest47.1%
Crops12.9%
Built-up2.9%
Bare soil0.7%
Other (grassland, water…)36.4%

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

Hydrology5 basins · 7 lakes · 12 rivers

Hydrology metrics for this exact territory

Stream length here

160,4km

Lake surface here

3,09km²

Basins crossed

5

Max stream order

9

Max drainage

3 178 851km²

Discharge in basins

1 939,3m³/s

Mean precip.

1 582mm/an

Mean T°

19,6°C

Moisture idx

0,10

Mean runoff

738mm/an

Mean elev. (basins)

10m

Watersheds crossing here

Lakes (7, top by area)

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

Human pressure

Pop. density

1hab/km²

Night light

10,3nW

Built-up

286,4%

Pesticides

5,9kg/km²

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

Protected areas1

IUCN V · 1

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