Ontologia

County · USA

Chatham

United States

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

Species observed

3 618

Observations

569 434

Area

1 213,5km²

Ecological tissue

Sample of 41 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 Chatham : 29 espèces reliées par 82 interactions GloBI sur 3 types (connectance 9.5%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
42
Interactions affichées
82
Connectance
0.095
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

3 618 distinct species · 569 434 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

569 434 obs · 30 cellules
Obs. / cellule
≥ 106 027
67 284–106 026
20 647–67 283
11 316–20 646
< 11 316

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

Climate

Mean T°

19,1°C

Annual rain

1 236mm

Warmest m°

31,3°C

Coldest m°

6,8°C

Elevation: 2 m on average (min -5 m, max 11 m)

Bioclimatic detailsExpert
Annual mean temp.
19,1°C
Annual rain
1 236mm
Warmest month
31,3°C
Coldest month
6,8°C
Mean alt.
2m
Min
-5m
Max
11m
Std. dev.
3m
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

5,0

Org. C

43,8g/kg

Clay

28,2%

Sand

38,7%

Silt

33,0%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,9
Org. C
68,7g/kg
Clay
27,4%
Sand
39,3%
Silt
33,3%
5–15 cm
pH H₂O
5,0
Org. C
36,6g/kg
Clay
27,6%
Sand
39,3%
Silt
33,1%
15–30 cm
pH H₂O
5,0
Org. C
26,1g/kg
Clay
29,7%
Sand
37,6%
Silt
32,7%

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

Land cover

Forest31.8%
Crops1.0%
Built-up3.5%
Bare soil0.8%
Other (grassland, water…)62.8%

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

Hydrology8 basins · 5 lakes · 23 rivers

Hydrology metrics for this exact territory

Stream length here

212,2km

Lake surface here

1,04km²

Basins crossed

8

Max stream order

6

Max drainage

27 174km²

Discharge in basins

148,7m³/s

Mean precip.

1 251mm/an

Mean T°

18,9°C

Moisture idx

-0,07

Max snow

2%

Mean runoff

320mm/an

Mean elev. (basins)

13m

Watersheds crossing here

Lakes (5, top by area)

Rivers / streams (23, ord ≥ 4)

11 more river segments

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

Human pressure

Pop. density

2hab/km²

Night light

10,4nW

Built-up

349,6%

Pesticides

4,0kg/km²

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

Protected areas30

IUCN V · 17IUCN IV · 5IUCN Not Assigned · 4IUCN III · 2IUCN VI · 1IUCN Ia · 1🌊 Marine · 18

Savannah

IUCN IV

National Wildlife Refuge

124 km²

Complete list

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