Ontologia

County · TWN

Yilan

Taiwan

CfaTemperate, no dry season, hot summer(75 %)

Species observed

9 191

Observations

1 298 724

Area

2 135,6km²

Ecological tissue

Sample of 34 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 Yilan : 28 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 42 interactions GloBI sur 3 types (connectance 7.5%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
42
Connectance
0.075
Patrimoniales
3
Plus dense que (national)0 %(top 100%)

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

Species present

9 191 distinct species · 1 298 724 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 298 724 obs · 65 cellules
Obs. / cellule
≥ 213 495
34 961–213 494
13 687–34 960
5 740–13 686
< 5 740

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

Climate

Mean T°

18,6°C

Annual rain

4 491mm

Warmest m°

26,2°C

Coldest m°

9,0°C

Elevation: 807 m on average (min -139 m, max 3 356 m)

Bioclimatic detailsExpert
Annual mean temp.
18,6°C
Annual rain
4 491mm
Warmest month
26,2°C
Coldest month
9,0°C
Mean alt.
807m
Min
-139m
Max
3 356m
Std. dev.
674m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(75 %)Temperate

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

Soil & lithology

pH H₂O

4,9

Org. C

77,0g/kg

Clay

32,4%

Sand

25,1%

Silt

42,5%

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

Dominant lithology: ssGLiM

3 soil depths detailedExpert
0–5 cm
pH H₂O
4,9
Org. C
108,1g/kg
Clay
32,1%
Sand
26,0%
Silt
41,9%
5–15 cm
pH H₂O
4,9
Org. C
82,6g/kg
Clay
33,5%
Sand
23,8%
Silt
42,6%
15–30 cm
pH H₂O
5,0
Org. C
40,4g/kg
Clay
31,6%
Sand
25,5%
Silt
42,9%

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

Land cover

Forest69.8%
Crops5.2%
Built-up1.4%
Bare soil0.9%
Other (grassland, water…)22.7%

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

Hydrology5 basins · 1 lakes · 100 rivers

Hydrology metrics for this exact territory

Stream length here

736,0km

Lake surface here

0,11km²

Basins crossed

5

Max stream order

4

Max drainage

2 700km²

Discharge in basins

63,0m³/s

Mean precip.

2 814mm/an

Mean T°

17,7°C

Moisture idx

0,62

Mean runoff

1 472mm/an

Mean elev. (basins)

910m

Watersheds crossing here

Lakes (1, top by area)

Rivers / streams (100, ord ≥ 4)

88 more river segments

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

Human pressure

Pop. density

1hab/km²

Night light

2,2nW

Built-up

137,7%

Pesticides

39,7kg/km²

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

Protected areas15

IUCN IV · 10IUCN Ia · 3IUCN II · 2🌊 Marine · 7

Taroko

IUCN II

National Park · 1986

981 km²

Shei-pa

IUCN II

National Park · 1992

770 km²

Ci-lan

IUCN IV

Major Wildlife Habitat · 2000

566 km²

Complete list

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