Ontologia

County · USA

Calaveras

United States

CsaTemperate, dry summer, hot summer(80 %)

Species observed

3 675

Observations

281 229

Area

2 684,8km²

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 Calaveras : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 74 interactions GloBI sur 4 types (connectance 11.7%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
74
Connectance
0.117
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

3 675 distinct species · 281 229 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

281 229 obs · 73 cellules
Obs. / cellule
≥ 32 076
13 417–32 075
2 928–13 416
948–2 927
< 948

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

Climate

Mean T°

13,7°C

Annual rain

1 041mm

Warmest m°

31,0°C

Coldest m°

1,3°C

Elevation: 733 m on average (min 57 m, max 2 376 m)

Bioclimatic detailsExpert
Annual mean temp.
13,7°C
Annual rain
1 041mm
Warmest month
31,0°C
Coldest month
1,3°C
Mean alt.
733m
Min
57m
Max
2 376m
Std. dev.
541m
Köppen-Geiger (dominant)
CsaTemperate, dry summer, hot summer(80 %)Temperate

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

Soil & lithology

pH H₂O

6,0

Org. C

36,0g/kg

Clay

20,4%

Sand

43,9%

Silt

35,7%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
6,0
Org. C
56,9g/kg
Clay
18,9%
Sand
44,9%
Silt
36,2%
5–15 cm
pH H₂O
6,0
Org. C
33,2g/kg
Clay
19,6%
Sand
44,2%
Silt
36,3%
15–30 cm
pH H₂O
6,0
Org. C
17,9g/kg
Clay
22,7%
Sand
42,7%
Silt
34,6%

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

Land cover

Forest45.1%
Crops1.4%
Built-up0.4%
Bare soil3.3%
Other (grassland, water…)49.8%

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

Hydrology6 basins · 13 lakes · 47 rivers

Hydrology metrics for this exact territory

Stream length here

633,8km

Lake surface here

59,11km²

Basins crossed

6

Max stream order

5

Max drainage

3 300km²

Discharge in basins

40,9m³/s

Mean precip.

832mm/an

Mean T°

13,0°C

Moisture idx

-0,31

Max snow

34%

Mean runoff

391mm/an

Mean elev. (basins)

816m

Watersheds crossing here

Lakes (13, top by area)

4 more lakes

Rivers / streams (47, ord ≥ 4)

35 more river segments

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

Human pressure

Pop. density

0hab/km²

Night light

0,2nW

Built-up

35,8%

Pesticides

6,4kg/km²

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

Protected areas6

IUCN Not Assigned · 4IUCN Ib · 1IUCN V · 1

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