Ontologia

HydroBASINS lev08 watershed · #4080037880

Bassin de 佐呂間別川

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 5 administrative regions : Engaru, Kamiyūbetsu, Kitami, Saroma, Yūbetsu

Coastal basinPfafstetter: 41200155

Sub-basin area

766,8km²

Upstream area

766,8km²

Discharge

0,74m³/s

Mean elev.

149m

Administrative coverage

5 dept-equivalent regions (GADM L2)

16 intersecting protected areas

  • Abashiri

    IUCN V

    Quasi National Park

    62.34 km² overlap

  • Abashiri

    IUCN VI

    Coastline Marine Resource Development Area, designated sea area

    9.50 km² overlap

  • Common fishery right area(Hokkaido)

    IUCN VI

    Common fishery right area

    9.43 km² overlap

  • Toetoko

    IUCN IV

    Prefectural Wildlife Protection Area

    3.81 km² overlap

  • Sakaeura

    IUCN IV

    Prefectural Wildlife Protection Area

    3.50 km² overlap

  • Maruyama

    IUCN IV

    Prefectural Wildlife Protection Area

    2.86 km² overlap

  • Horoiwa

    IUCN IV

    Prefectural Wildlife Protection Area

    2.30 km² overlap

  • Baro Kashiwa Idenshigen

    IUCN IV

    Rare Population Protected Forest

    1.21 km² overlap

  • Kakijima

    IUCN IV

    Prefectural Wildlife Protection Area

    1.04 km² overlap

7 more protected areas

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

Species present

494 distinct species · 1 526 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

1 526 obs · 18 cellules
Obs. / cellule
≥ 557
189–556
103–188
22–102
< 22

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 佐呂間別川 : 23 espèces reliées par 45 interactions GloBI sur 6 types (connectance 6.8%, filtre Serrano α=0.2). 14 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
45
Connectance
0.068
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°

5,7°C

Annual rain

888mm

Moisture idx (CMI)

0,23

Runoff

513mm/an

PET

683mm

AET

601mm

Mean slope

8,0°

Water table

223cm

Forest

77%

Crops

8%

Urban

0%

Protected

8%

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