Ontologia

HydroBASINS lev08 watershed · #4080041390

Bassin de 日高川

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 10 administrative regions : Aridagawa, Gobō, Hidaka, Hidakagawa, Hirogawa +5

Pfafstetter: 41301112

Sub-basin area

609,7km²

Upstream area

609,9km²

Discharge

19,74m³/s

Mean elev.

500m

Administrative coverage

10 dept-equivalent regions (GADM L2)

2 more
  • Hidaka0.2 km² · 0.0%
  • Nosegawa0.1 km² · 0.0%

18 intersecting protected areas

  • Koya-Ryujin

    IUCN V

    Quasi National Park

    52.73 km² overlap

  • Jogamori hokodai

    IUCN V

    Prefectural Natural Park

    34.71 km² overlap

  • Imohara

    IUCN IV

    Prefectural Wildlife Protection Area

    5.24 km² overlap

  • Nishinoko genserin

    IUCN V

    Prefectural Nature Conservation Area

    3.69 km² overlap

  • Nishinoko

    IUCN IV

    Prefectural Wildlife Protection Area

    3.58 km² overlap

  • Kametani genserin

    IUCN V

    Prefectural Nature Conservation Area

    3.48 km² overlap

  • Kamedani Tsuga・Buna

    IUCN IV

    Rare Population Protected Forest

    2.15 km² overlap

  • Yata

    IUCN IV

    Prefectural Wildlife Protection Area

    1.80 km² overlap

  • Kawamata

    IUCN IV

    Prefectural Wildlife Protection Area

    0.54 km² overlap

9 more protected areas

  • Nishinoko Momi・Tsuga Idenshigen

    IUCN IV

    Rare Population Protected Forest

    0.45 km² overlap

  • Chikai

    IUCN IV

    Prefectural Wildlife Protection Area

    0.31 km² overlap

  • Otakikawa

    IUCN IV

    Prefectural Wildlife Protection Area

    0.25 km² overlap

  • Nishinoko Tsuga・Buna

    IUCN IV

    Rare Population Protected Forest

    0.19 km² overlap

  • Kuriyadani

    IUCN IV

    Prefectural Wildlife Protection Area

    0.09 km² overlap

  • Enju kaigan

    IUCN V

    Prefectural Natural Park

    0.05 km² overlap

  • Choshi

    IUCN IV

    Prefectural Wildlife Protection Area

    0.04 km² overlap

  • Otaki gawa

    IUCN V

    Prefectural Nature Conservation Area

    0.03 km² overlap

  • Hatenashi sanmyaku

    IUCN V

    Prefectural Natural Park

    0.01 km² overlap

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

Species present

505 distinct species · 1 440 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 440 obs · 19 cellules
Obs. / cellule
≥ 621
130–620
60–129
38–59
< 38

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

Ecological tissue

Sample of 17 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 日高川 : 16 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 12 interactions GloBI sur 5 types (connectance 7.8%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
18
Interactions affichées
12
Connectance
0.078
Patrimoniales
1
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°

13,6°C

Annual rain

2 216mm

Moisture idx (CMI)

0,59

Runoff

1 309mm/an

PET

902mm

AET

902mm

Mean slope

18,8°

Water table

516cm

Forest

96%

Crops

1%

Urban

2%

Protected

16%

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