Ontologia

County · USA

Harvey

United States

DfaCold, no dry season, hot summer(73 %)

Species observed

1 528

Observations

217 614

Area

1 397,2km²

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 Harvey : 30 espèces reliées par 72 interactions GloBI sur 3 types (connectance 11.4%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
72
Connectance
0.114
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

1 528 distinct species · 217 614 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

217 614 obs · 37 cellules
Obs. / cellule
≥ 54 166
21 332–54 165
1 837–21 331
653–1 836
< 653

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

Climate

Mean T°

13,4°C

Annual rain

878mm

Warmest m°

32,3°C

Coldest m°

-3,9°C

Elevation: 439 m on average (min 412 m, max 471 m)

Bioclimatic detailsExpert
Annual mean temp.
13,4°C
Annual rain
878mm
Warmest month
32,3°C
Coldest month
-3,9°C
Mean alt.
439m
Min
412m
Max
471m
Std. dev.
11m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(73 %)Cold

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

Soil & lithology

pH H₂O

6,2

Org. C

15,2g/kg

Clay

32,0%

Sand

21,8%

Silt

46,2%

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
21,2g/kg
Clay
30,8%
Sand
22,3%
Silt
46,9%
5–15 cm
pH H₂O
6,1
Org. C
14,3g/kg
Clay
31,2%
Sand
22,1%
Silt
46,7%
15–30 cm
pH H₂O
6,4
Org. C
10,2g/kg
Clay
33,9%
Sand
21,0%
Silt
45,1%

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

Land cover

Forest7.1%
Crops58.5%
Built-up0.5%
Bare soil0.6%
Other (grassland, water…)33.2%

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

Hydrology12 basins · 3 lakes · 17 rivers

Hydrology metrics for this exact territory

Stream length here

253,5km

Lake surface here

0,87km²

Basins crossed

12

Max stream order

4

Max drainage

100 013km²

Discharge in basins

29,7m³/s

Mean precip.

804mm/an

Mean T°

13,0°C

Moisture idx

-0,34

Max snow

4%

Mean runoff

155mm/an

Mean elev. (basins)

445m

Watersheds crossing here

3 more basins

Lakes (3, top by area)

Rivers / streams (17, ord ≥ 4)

5 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,7nW

Built-up

51,0%

Pesticides

15,4kg/km²

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

Protected areas2

IUCN V · 1IUCN III · 1

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