Ontologia

HydroBASINS lev08 watershed · #4080573000

Bassin de 小鳥川

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 4 administrative regions : Hida, Nanto, Shirakawa Village, Takayama

9% lakePfafstetter: 41301186

Sub-basin area

280km²

Upstream area

280km²

Discharge

13,16m³/s

Mean elev.

1 036m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 宮川165 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

6 intersecting protected areas

  • Amo

    IUCN V

    Prefectural Natural Park

    6.22 km² overlap

  • Shiraki mizunashi

    IUCN V

    Prefectural Natural Park

    2.60 km² overlap

  • Gozen dake

    IUCN V

    Prefectural Nature Conservation Area

    1.57 km² overlap

  • Mizunashi Shisseishokubutsu

    IUCN IV

    Rare Population Protected Forest

    0.85 km² overlap

  • Amo

    IUCN IV

    Rare Population Protected Forest

    0.02 km² overlap

  • Seseragi keikoku

    IUCN V

    Prefectural Natural Park

    0.01 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

612 distinct species · 1 262 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 262 obs · 9 cellules
Obs. / cellule
≥ 495
495–494
219–494
86–218
< 86

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

Ecological tissue

Sample of 32 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 Bassin de 小鳥川 : 26 espèces reliées par 35 interactions GloBI sur 4 types (connectance 7.1%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
32
Interactions affichées
35
Connectance
0.071
Patrimoniales
0
Plus dense que (national)0 %(top 100%)

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

Hydroclimate (BasinATLAS lev08)

Mean T°

8,2°C

Annual rain

2 009mm

Moisture idx (CMI)

0,57

Runoff

1 492mm/an

PET

854mm

AET

854mm

Mean slope

17,8°

Water table

541cm

Forest

100%

Crops

2%

Urban

0%

Protected

4%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)