Nagaoka higashiyama yamamoto yama
IUCN VPrefectural Natural Park · 1962
40 km²
City · JPN
Ojiya
Japan
CfaTemperate, no dry season, hot summer(100 %)
Species observed
191
Observations
446
Area
158,4km²
Ecological tissue
Sample of 28 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 Ojiya : 19 espèces reliées par 54 interactions GloBI sur 5 types (connectance 12.4%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
30
Interactions affichées
54
Connectance
0.124
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
191 distinct species · 446 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
12,9°C
Annual rain
2 368mm
Warmest m°
29,6°C
Coldest m°
-3,7°C
Elevation: 149 m on average (min 32 m, max 357 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
12,9°C
Annual rain
2 368mm
Warmest month
29,6°C
Coldest month
-3,7°C
Mean alt.
149m
Min
32m
Max
357m
Std. dev.
70m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,2
Org. C
72,4g/kg
Clay
25,3%
Sand
38,1%
Silt
36,6%
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
5,1
Org. C
106,9g/kg
Clay
25,4%
Sand
37,9%
Silt
36,8%
5–15 cm
pH H₂O
5,2
Org. C
68,3g/kg
Clay
25,9%
Sand
37,4%
Silt
36,7%
15–30 cm
pH H₂O
5,2
Org. C
42,0g/kg
Clay
24,6%
Sand
39,1%
Silt
36,2%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest57.1%
Crops12.2%
Built-up2.3%
Bare soil1.4%
Other (grassland, water…)27.0%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology4 basins · 1 lakes · 15 rivers
Hydrology metrics for this exact territory
Stream length here
74,7km
Lake surface here
0,34km²
Basins crossed
4
Max stream order
6
Max drainage
9 873km²
Discharge in basins
231,5m³/s
Mean precip.
1 990mm/an
Mean T°
10,8°C
Moisture idx
0,52
Max snow
37%
Mean runoff
1 666mm/an
Mean elev. (basins)
441m
Watersheds crossing here
Lakes (1, top by area)
Rivers / streams (15, ord ≥ 4)
- 信濃川ord 6len here24.84 km26%total95 km
- 茶郷川ord 2len here5.95 km100%total6 km
- 焼田川ord 6len here5.23 km71%total7 km
- 朝日川ord 1len here5.21 km74%total7 km
- 野辺川ord 1len here4.62 km100%total5 km
- 沢入川ord 6len here4.41 km71%total6 km
- 須川ord 3len here4.31 km35%total12 km
- 鴻島川ord 1len here4.25 km100%total4 km
- 芋川ord 4len here3.91 km17%total23 km
- 真人沢川ord 1len here3.70 km100%total4 km
- 天田川ord 2len here3.40 km100%total3 km
- 郡又川ord 1len here1.89 km100%total2 km
3 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
2hab/km²
Night light
0,9nW
Built-up
233,2%
Pesticides
90,2kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas4
IUCN V · 3IUCN IV · 1
Funaokayama-yamamotoyama
IUCN IVPrefectural Wildlife Protection Area · 2022
5 km²
Oike
IUCN VPrefectural Nature Conservation Area · 1979
0 km²
Koridonno ike
IUCN VPrefectural Nature Conservation Area · 1979
0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN