Ontologia

County · USA

Marin

United States

CsbTemperate, dry summer, warm summer(100 %)

Species observed

9 966

Observations

4 575 278

Area

1 367,2km²

Ecological tissue

Sample of 30 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 Marin : 19 espèces reliées par 59 interactions GloBI sur 2 types (connectance 13.6%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
59
Connectance
0.136
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

9 966 distinct species · 4 575 278 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 575 278 obs · 38 cellules
Obs. / cellule
≥ 649 819
346 186–649 818
131 107–346 185
67 117–131 106
< 67 117

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

Climate

Mean T°

13,0°C

Annual rain

1 012mm

Warmest m°

21,1°C

Coldest m°

6,2°C

Elevation: 128 m on average (min -43 m, max 623 m)

Bioclimatic detailsExpert
Annual mean temp.
13,0°C
Annual rain
1 012mm
Warmest month
21,1°C
Coldest month
6,2°C
Mean alt.
128m
Min
-43m
Max
623m
Std. dev.
101m
Köppen-Geiger (dominant)
CsbTemperate, dry summer, warm summer(100 %)Temperate

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

Soil & lithology

pH H₂O

5,9

Org. C

36,1g/kg

Clay

24,2%

Sand

40,2%

Silt

35,6%

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

Dominant lithology: mtGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
5,9
Org. C
61,2g/kg
Clay
23,8%
Sand
40,3%
Silt
36,0%
5–15 cm
pH H₂O
5,9
Org. C
29,0g/kg
Clay
23,9%
Sand
40,2%
Silt
35,9%
15–30 cm
pH H₂O
5,9
Org. C
18,2g/kg
Clay
24,8%
Sand
40,2%
Silt
35,0%

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

Land cover

Forest44.5%
Crops6.3%
Built-up1.6%
Bare soil2.9%
Other (grassland, water…)44.7%

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

Hydrology1 basins · 12 lakes · 30 rivers

Hydrology metrics for this exact territory

Stream length here

221,2km

Lake surface here

8,64km²

Basins crossed

1

Max stream order

3

Max drainage

2 478km²

Discharge in basins

0,1m³/s

Mean precip.

936mm/an

Mean T°

13,6°C

Moisture idx

-0,18

Max snow

2%

Mean runoff

570mm/an

Mean elev. (basins)

124m

Watersheds crossing here

Lakes (12, top by area)

3 more lakes

Rivers / streams (30, ord ≥ 4)

18 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

1,4nW

Built-up

157,8%

Pesticides

12,7kg/km²

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

Protected areas100

IUCN Not Assigned · 54IUCN V · 39IUCN Ia · 4IUCN Ib · 1IUCN IV · 1IUCN III · 1🌊 Marine · 24📍 Point sites · 1

Golden Gate

IUCN V

National Recreation Area · 1972

141 km²

Complete list

+ 40 protected areas (top 60 shown)

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