Ontologia

HydroBASINS lev08 watershed · #4080646680

Bassin de 銅山川

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 : Miyoshi, Niihama, Shikokuchūō, Ōtoyo

4% lakePfafstetter: 41304048

Sub-basin area

318,7km²

Upstream area

318,7km²

Discharge

14,45m³/s

Mean elev.

733m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 祖谷川6 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

7 intersecting protected areas

  • Mishimareinan

    IUCN IV

    Prefectural Wildlife Protection Area

    10.70 km² overlap

  • Akaishi sankei

    IUCN V

    Prefectural Nature Conservation Area

    8.94 km² overlap

  • Kinsha ko

    IUCN V

    Prefectural Natural Park

    8.87 km² overlap

  • Shikoku Mountains

    IUCN V

    Green Corridor

    6.56 km² overlap

  • Okunoin

    IUCN IV

    Prefectural Wildlife Protection Area

    3.97 km² overlap

  • Tsuzurao

    IUCN IV

    Prefectural Wildlife Protection Area

    2.60 km² overlap

  • Sasagamine

    IUCN Ib

    Nature Conservation Area

    0.02 km² overlap

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

Species present

909 distinct species · 2 456 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

2 456 obs · 11 cellules
Obs. / cellule
≥ 602
382–601
272–381
160–271
< 160

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

Ecological tissue

Sample of 7 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 銅山川 : 6 espèces reliées par 4 interactions GloBI sur 2 types (connectance 19.0%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
7
Interactions affichées
4
Connectance
0.191
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°

11,8°C

Annual rain

2 022mm

Moisture idx (CMI)

0,55

Runoff

1 281mm/an

PET

891mm

AET

891mm

Mean slope

21,5°

Water table

649cm

Forest

99%

Crops

2%

Urban

0%

Protected

10%

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