Ontologia

County · USA

Grand

United States

BSkArid, steppe, cold(66 %)

Species observed

3 614

Observations

284 085

Area

9 557,5km²

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 Grand : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 4 types (connectance 10.7%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
79
Connectance
0.107
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Species present

3 614 distinct species · 284 085 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

284 085 obs · 235 cellules
Obs. / cellule
≥ 20 637
2 425–20 636
355–2 424
97–354
< 97

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

Climate

Mean T°

11,2°C

Annual rain

301mm

Warmest m°

32,1°C

Coldest m°

-7,4°C

Elevation: 1 756 m on average (min 1 213 m, max 3 503 m)

Bioclimatic detailsExpert
Annual mean temp.
11,2°C
Annual rain
301mm
Warmest month
32,1°C
Coldest month
-7,4°C
Mean alt.
1 756m
Min
1 213m
Max
3 503m
Std. dev.
417m
Köppen-Geiger (dominant)
BSkArid, steppe, cold(66 %)Arid

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

Soil & lithology

pH H₂O

7,8

Org. C

17,2g/kg

Clay

23,1%

Sand

43,1%

Silt

33,8%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
7,7
Org. C
24,5g/kg
Clay
21,3%
Sand
44,6%
Silt
34,1%
5–15 cm
pH H₂O
7,8
Org. C
15,8g/kg
Clay
23,5%
Sand
42,8%
Silt
33,7%
15–30 cm
pH H₂O
7,9
Org. C
11,5g/kg
Clay
24,5%
Sand
41,9%
Silt
33,6%

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

Land cover

Forest13.2%
Crops0.5%
Built-up0.0%
Bare soil31.3%
Other (grassland, water…)55.0%

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

Hydrology24 basins · 2 lakes · 87 rivers

Hydrology metrics for this exact territory

Stream length here

1 495,4km

Lake surface here

0,40km²

Basins crossed

24

Max stream order

7

Max drainage

115 603km²

Discharge in basins

1 610,0m³/s

Mean precip.

280mm/an

Mean T°

9,6°C

Moisture idx

-0,76

Max snow

21%

Mean runoff

45mm/an

Mean elev. (basins)

1 740m

Watersheds crossing here

15 more basins

Lakes (2, top by area)

Rivers / streams (87, ord ≥ 4)

75 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,0nW

Built-up

2,4%

Pesticides

0,4kg/km²

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

Protected areas57

IUCN V · 37IUCN Ib · 17IUCN II · 2IUCN Not Assigned · 1

Arches

IUCN II

National Park · 1971

354 km²

Complete list

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