Ontologia

County · USA

Long

United States

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

Species observed

1 015

Observations

14 961

Area

1 045,8km²

Ecological tissue

Sample of 39 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 Long : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 73 interactions GloBI sur 4 types (connectance 9.4%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
73
Connectance
0.094
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

1 015 distinct species · 14 961 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

14 961 obs · 33 cellules
Obs. / cellule
≥ 3 234
1 405–3 233
508–1 404
141–507
< 141

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

Climate

Mean T°

19,0°C

Annual rain

1 291mm

Warmest m°

32,8°C

Coldest m°

5,8°C

Elevation: 19 m on average (min 4 m, max 53 m)

Bioclimatic detailsExpert
Annual mean temp.
19,0°C
Annual rain
1 291mm
Warmest month
32,8°C
Coldest month
5,8°C
Mean alt.
19m
Min
4m
Max
53m
Std. dev.
11m
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

30,7g/kg

Clay

18,1%

Sand

61,2%

Silt

20,8%

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

Dominant lithology: suGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,8
Org. C
56,9g/kg
Clay
17,4%
Sand
61,6%
Silt
21,0%
5–15 cm
pH H₂O
4,9
Org. C
22,1g/kg
Clay
17,3%
Sand
62,0%
Silt
20,8%
15–30 cm
pH H₂O
4,9
Org. C
13,1g/kg
Clay
19,5%
Sand
60,0%
Silt
20,5%

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

Land cover

Forest73.3%
Crops1.5%
Built-up0.2%
Bare soil0.4%
Other (grassland, water…)24.6%

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

Hydrology8 basins · 2 lakes · 6 rivers

Hydrology metrics for this exact territory

Stream length here

103,5km

Lake surface here

0,58km²

Basins crossed

8

Max stream order

6

Max drainage

36 805km²

Discharge in basins

770,0m³/s

Mean precip.

1 245mm/an

Mean T°

19,1°C

Moisture idx

-0,13

Max snow

1%

Mean runoff

348mm/an

Mean elev. (basins)

28m

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

0,3nW

Built-up

22,1%

Pesticides

21,5kg/km²

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

Protected areas9

IUCN V · 7IUCN Not Assigned · 2

Townsend

IUCN V

Wildlife Management Area

122 km²

Complete list

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