Ontologia

HydroBASINS lev08 watershed · #4080037570

Bassin de 頓別川

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 21 administrative regions : Bifuka, Esashi, Hamatonbetsu, Horonobe, Monbetsu +16

Coastal basin 5% lakePfafstetter: 41200151

Sub-basin area

4 938,6km²

Upstream area

4 938,6km²

Discharge

6,24m³/s

Mean elev.

173m

Administrative coverage

21 dept-equivalent regions (GADM L2)

13 more

30 intersecting protected areas

  • Rishiri rebun sarobetsu

    IUCN II

    National Park

    194.98 km² overlap

  • Rishiri

    IUCN IV

    Prefectural Wildlife Protection Area

    173.45 km² overlap

  • Common fishery right area(Hokkaido)

    IUCN VI

    Common fishery right area

    100.28 km² overlap

  • Rebun

    IUCN IV

    Prefectural Wildlife Protection Area

    64.79 km² overlap

  • Rishirito

    IUCN IV

    Biocenosis Protected Forest

    43.88 km² overlap

  • Kita okhotsk

    IUCN V

    Prefectural Natural Park

    41.45 km² overlap

  • Rirei

    IUCN VI

    Coastline Marine Resource Development Area, designated sea area

    29.40 km² overlap

  • Hamatonbetsu-Kutcharoko

    IUCN IV

    National Wildlife Protection Area

    29.15 km² overlap

  • Soya tobu

    IUCN VI

    Coastline Marine Resource Development Area, designated sea area

    26.96 km² overlap

21 more protected areas

  • Rebunto

    IUCN IV

    Biocenosis Protected Forest

    23.96 km² overlap

  • Soya seibu

    IUCN VI

    Coastline Marine Resource Development Area, designated sea area

    23.75 km² overlap

  • Yukuru wakasanai

    IUCN IV

    Prefectural Wildlife Protection Area

    21.65 km² overlap

  • Kutcharo-ko

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    17.74 km² overlap

  • Hakodake

    IUCN IV

    Prefectural Wildlife Protection Area

    17.01 km² overlap

  • Teshio dake

    IUCN V

    Prefectural Natural Park

    14.19 km² overlap

  • Abashiri

    IUCN VI

    Coastline Marine Resource Development Area, designated sea area

    13.76 km² overlap

  • Shirikoma

    IUCN IV

    Prefectural Wildlife Protection Area

    12.69 km² overlap

  • Shirikoma

    IUCN IV

    Biocenosis Protected Forest

    12.10 km² overlap

  • Wakasakanai

    IUCN IV

    Biocenosis Protected Forest

    9.03 km² overlap

  • Wakkanai

    IUCN IV

    Prefectural Wildlife Protection Area

    8.77 km² overlap

  • Koetoi onuma

    IUCN IV

    Prefectural Wildlife Protection Area

    8.39 km² overlap

  • Matsuyamapiyashiri

    IUCN V

    Prefectural Nature Conservation Area

    7.15 km² overlap

  • Oonuma

    IUCN V

    Natural Landscape Protection Area(Hokkaido)

    6.65 km² overlap

  • Piyashiri

    IUCN IV

    Prefectural Wildlife Protection Area

    6.40 km² overlap

  • Nakatonbetsu suigenchi

    IUCN IV

    Prefectural Wildlife Protection Area

    5.71 km² overlap

  • Okoppe

    IUCN IV

    Prefectural Wildlife Protection Area

    5.66 km² overlap

  • Asajinooji

    IUCN IV

    Prefectural Wildlife Protection Area

    4.31 km² overlap

  • Esashi

    IUCN IV

    Prefectural Wildlife Protection Area

    3.98 km² overlap

  • Kutcharoko

    IUCN IV

    Biocenosis Protected Forest

    3.83 km² overlap

  • Utanoborioji

    IUCN IV

    Prefectural Wildlife Protection Area

    3.44 km² overlap

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

Species present

1 294 distinct species · 5 464 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 464 obs · 112 cellules
Obs. / cellule
≥ 406
99–405
33–98
14–32
< 14

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

Ecological tissue

Sample of 26 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 頓別川 : 17 espèces reliées par 42 interactions GloBI sur 4 types (connectance 12.0%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
27
Interactions affichées
42
Connectance
0.120
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°

5,1°C

Annual rain

1 161mm

Moisture idx (CMI)

0,47

Runoff

783mm/an

PET

612mm

AET

589mm

Mean slope

7,8°

Water table

221cm

Forest

82%

Crops

1%

Urban

0%

Protected

9%

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