Quasi National Park · jpn
Koya-Ryujin
- Area
- 191 km²
- IUCN cat.
- V
- Year
- 1967
Overview
- Designation
- Quasi National Park
- IUCN category
- V · Paysage protégé
Paysage façonné par l'humain digne de conservation
- Established
- 1967
- Managing authority
- Nara and Wakayama Prefectures
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
793 distinct species · 2 716 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Koya-Ryujin : 28 espèces reliées par 25 interactions GloBI sur 4 types (connectance 5.7%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology4 basins · 0 lakes · 20 rivers
Hydrology metrics for this exact territory
Stream length here
46,8km
Basins crossed
4
Max stream order
3
Max drainage
2 350km²
Discharge in basins
7,9m³/s
Mean precip.
2 274mm/an
Mean T°
13,3°C
Moisture idx
0,59
Max snow
17%
Mean runoff
1 387mm/an
Mean elev. (basins)
523m
Watersheds crossing here
Rivers / streams (20, ord ≥ 4)
- 日高川ord 3len here9.46 km8%total114 km
- 小森谷ord 2len here5.99 km100%total6 km
- 古川ord 2len here5.76 km100%total6 km
- 神納川ord 3len here4.15 km20%total21 km
- 有田川ord 3len here4.04 km7%total62 km
- 鳴子川ord 1len here2.95 km100%total3 km
- コキマタ谷ord 1len here2.47 km40%total6 km
- 一ノ枝川ord 1len here2.22 km100%total2 km
- 下谷川ord 2len here1.88 km55%total3 km
- 内子谷川ord 1len here1.76 km100%total2 km
- 不動谷川ord 1len here1.47 km14%total10 km
- ナベワリ谷ord 1len here1.36 km100%total1 km
8 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 34.10149, 135.54928
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.