Shiwacho niiyama
IUCN IVPrefectural Wildlife Protection Area · 2023
2 km²
Town · JPN
Shiwa
Japan
DfaCold, no dry season, hot summer(91 %)
Species observed
186
Observations
479
Area
233,3km²
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 Shiwa : 27 espèces reliées par 48 interactions GloBI sur 5 types (connectance 7.6%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
36
Interactions affichées
48
Connectance
0.076
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
186 distinct species · 479 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
9,8°C
Annual rain
1 848mm
Warmest m°
26,2°C
Coldest m°
-10,1°C
Elevation: 266 m on average (min 91 m, max 717 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
9,8°C
Annual rain
1 848mm
Warmest month
26,2°C
Coldest month
-10,1°C
Mean alt.
266m
Min
91m
Max
717m
Std. dev.
160m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(91 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,3
Org. C
62,7g/kg
Clay
24,4%
Sand
39,6%
Silt
36,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: vbGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,2
Org. C
91,6g/kg
Clay
24,5%
Sand
39,1%
Silt
36,4%
5–15 cm
pH H₂O
5,3
Org. C
58,6g/kg
Clay
24,5%
Sand
39,6%
Silt
35,9%
15–30 cm
pH H₂O
5,3
Org. C
37,8g/kg
Clay
24,2%
Sand
40,0%
Silt
35,7%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest63.6%
Crops12.1%
Built-up2.1%
Bare soil0.7%
Other (grassland, water…)21.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 1 lakes · 14 rivers
Hydrology metrics for this exact territory
Stream length here
74,2km
Lake surface here
2,13km²
Basins crossed
2
Max stream order
5
Max drainage
3 199km²
Discharge in basins
16,9m³/s
Mean precip.
1 413mm/an
Mean T°
8,7°C
Moisture idx
0,40
Max snow
31%
Mean runoff
881mm/an
Mean elev. (basins)
406m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (14, ord ≥ 4)
- 北上川ord 5len here17.05 km7%total256 km
- 滝名川ord 2len here12.39 km100%total12 km
- 赤沢川ord 2len here8.72 km41%total21 km
- 天王川ord 5len here6.53 km100%total7 km
- 鹿妻穴堰ord 2len here6.31 km31%total20 km
- 岩崎川ord 5len here5.50 km35%total16 km
- 彦部川ord 2len here4.82 km100%total5 km
- 平栗川ord 1len here3.68 km100%total4 km
- 中沢川ord 1len here2.67 km13%total21 km
- 袖滝沢ord 1len here2.54 km100%total3 km
- 砂子沢ord 1len here1.48 km14%total11 km
- 黒沢川ord 4len here1.25 km3%total46 km
2 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
1hab/km²
Night light
0,5nW
Built-up
214,0%
Pesticides
102,8kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas4
IUCN IV · 4
Sannokai dam
IUCN IVPrefectural Wildlife Protection Area · 2022
2 km²
Shiwacho shiroyama
IUCN IVPrefectural Wildlife Protection Area · 2015
1 km²
Sannoukai Nezuko Idenshigen
IUCN IVRare Population Protected Forest · 2018
0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN