Ontologia

HydroBASINS lev08 watershed · #4080038840

Bassin de 長流川

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 36 administrative regions : Abira, Assabu, Atsuma, Chitose, Date +31

Coastal basin 14% lakePfafstetter: 41200199

Sub-basin area

6 362,2km²

Upstream area

6 362,2km²

Discharge

2,04m³/s

Mean elev.

227m

Administrative coverage

36 dept-equivalent regions (GADM L2)

28 more

30 intersecting protected areas

  • Shikotsu toya

    IUCN II

    National Park

    432.80 km² overlap

  • Onuma

    IUCN IV

    Prefectural Wildlife Protection Area

    169.30 km² overlap

  • Common fishery right area(Hokkaido)

    IUCN VI

    Common fishery right area

    94.94 km² overlap

  • Onuma

    IUCN V

    Quasi National Park

    93.80 km² overlap

  • Toyako

    IUCN IV

    Prefectural Wildlife Protection Area

    75.78 km² overlap

  • Esan

    IUCN V

    Prefectural Natural Park

    42.89 km² overlap

  • Funka wan

    IUCN VI

    Coastline Marine Resource Development Area, designated sea area

    36.52 km² overlap

  • Hokudai tomakomai kenkyurin

    IUCN IV

    Prefectural Wildlife Protection Area

    27.31 km² overlap

  • Oshima tobu

    IUCN VI

    Coastline Marine Resource Development Area, designated sea area

    26.64 km² overlap

21 more protected areas

  • Ojiyama

    IUCN IV

    Prefectural Wildlife Protection Area

    12.96 km² overlap

  • Onuma

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    12.54 km² overlap

  • Kamiiso gun

    IUCN VI

    Coastline Marine Resource Development Area, designated sea area

    9.44 km² overlap

  • Sengendake

    IUCN IV

    Biocenosis Protected Forest

    9.05 km² overlap

  • Sawara

    IUCN IV

    Prefectural Wildlife Protection Area

    8.90 km² overlap

  • Hekirichi

    IUCN IV

    Prefectural Wildlife Protection Area

    8.16 km² overlap

  • Azuma damu

    IUCN V

    Natural Landscape Protection Area(Hokkaido)

    7.92 km² overlap

  • Kuttarako

    IUCN IV

    Prefectural Wildlife Protection Area

    7.83 km² overlap

  • Atsuma

    IUCN IV

    Prefectural Wildlife Protection Area

    7.80 km² overlap

  • Sasanagare

    IUCN V

    Natural Landscape Protection Area(Hokkaido)

    5.68 km² overlap

  • Noboribetsu

    IUCN IV

    Prefectural Wildlife Protection Area

    5.56 km² overlap

  • Sizukarirebunge

    IUCN V

    Prefectural Nature Conservation Area

    5.28 km² overlap

  • Kamiiso

    IUCN IV

    Prefectural Wildlife Protection Area

    5.14 km² overlap

  • Utonai-ko

    IUCN IV

    Wetland of International Importance (Ramsar Site)

    5.12 km² overlap

  • Utonaiko

    IUCN IV

    National Wildlife Protection Area

    5.12 km² overlap

  • Hanaoka

    IUCN IV

    Prefectural Wildlife Protection Area

    5.06 km² overlap

  • Kamedagawa suigenchi

    IUCN IV

    Prefectural Wildlife Protection Area

    5.05 km² overlap

  • Shiraoioji

    IUCN IV

    Prefectural Wildlife Protection Area

    4.90 km² overlap

  • Horobetsu dam

    IUCN IV

    Prefectural Wildlife Protection Area

    4.60 km² overlap

  • Poroto

    IUCN IV

    Prefectural Wildlife Protection Area

    3.96 km² overlap

  • Hakodateyama

    IUCN IV

    Prefectural Wildlife Protection Area

    3.89 km² overlap

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

Species present

2 923 distinct species · 115 990 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

115 990 obs · 183 cellules
Obs. / cellule
≥ 29 454
591–29 453
121–590
44–120
< 44

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

Ecological tissue

Sample of 31 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 長流川 : 23 espèces reliées par 49 interactions GloBI sur 5 types (connectance 10.5%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
31
Interactions affichées
49
Connectance
0.105
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°

7,2°C

Annual rain

1 241mm

Moisture idx (CMI)

0,43

Runoff

878mm/an

PET

709mm

AET

683mm

Mean slope

8,7°

Water table

300cm

Forest

60%

Crops

13%

Urban

6%

Protected

13%

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