Onuma
IUCN IVPrefectural Wildlife Protection Area · 2020
4 km²
Town · JPN
Yamanobe
Japan
DfaCold, no dry season, hot summer(75 %)
Species observed
273
Observations
349
Area
63,2km²
Ecological tissue
Sample of 21 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 Yamanobe : 20 espèces reliées par 19 interactions GloBI sur 3 types (connectance 9.0%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
21
Interactions affichées
19
Connectance
0.090
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
273 distinct species · 349 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,5°C
Annual rain
2 296mm
Warmest m°
26,6°C
Coldest m°
-6,3°C
Elevation: 356 m on average (min 95 m, max 816 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,5°C
Annual rain
2 296mm
Warmest month
26,6°C
Coldest month
-6,3°C
Mean alt.
356m
Min
95m
Max
816m
Std. dev.
173m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(75 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,1
Org. C
57,4g/kg
Clay
18,5%
Sand
47,1%
Silt
34,4%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
4,9
Org. C
88,6g/kg
Clay
18,0%
Sand
46,8%
Silt
35,2%
5–15 cm
pH H₂O
5,1
Org. C
51,3g/kg
Clay
17,9%
Sand
47,5%
Silt
34,6%
15–30 cm
pH H₂O
5,2
Org. C
32,3g/kg
Clay
19,7%
Sand
47,0%
Silt
33,3%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest72.0%
Crops8.2%
Built-up2.2%
Bare soil0.3%
Other (grassland, water…)17.4%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology2 basins · 2 lakes · 6 rivers
Hydrology metrics for this exact territory
Stream length here
12,1km
Lake surface here
0,25km²
Basins crossed
2
Max stream order
3
Max drainage
2 145km²
Discharge in basins
1,7m³/s
Mean precip.
1 550mm/an
Mean T°
9,7°C
Moisture idx
0,42
Max snow
33%
Mean runoff
854mm/an
Mean elev. (basins)
494m
Watersheds crossing here
Lakes (2, top by area)
Rivers / streams (6, ord ≥ 4)
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Night light
0,7nW
Built-up
219,3%
Pesticides
91,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas1
IUCN IV · 1
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN