Ontologia

HydroBASINS lev08 watershed · #4080040230

Bassin de 大分川

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 7 administrative regions : Beppu, Bungo-ōno, Kokonoe, Kusu, Taketa +2

2% lakePfafstetter: 41305738

Sub-basin area

650,7km²

Upstream area

650,7km²

Discharge

25,91m³/s

Mean elev.

486m

Administrative coverage

7 dept-equivalent regions (GADM L2)

19 intersecting protected areas

  • Jinkakuji Serikawa

    IUCN V

    Prefectural Natural Park

    63.79 km² overlap

  • Aso kuju

    IUCN V

    National Park

    57.43 km² overlap

  • Kijima kogen

    IUCN IV

    Prefectural Wildlife Protection Area

    24.83 km² overlap

  • Kurodake

    IUCN IV

    Prefectural Wildlife Protection Area

    11.05 km² overlap

  • Seishonenno mori

    IUCN IV

    Prefectural Wildlife Protection Area

    10.94 km² overlap

  • Ryozen

    IUCN IV

    Prefectural Wildlife Protection Area

    6.58 km² overlap

  • Yamashitako

    IUCN IV

    Prefectural Wildlife Protection Area

    5.63 km² overlap

  • Yufugawa

    IUCN IV

    Prefectural Wildlife Protection Area

    4.35 km² overlap

  • Kujutaisen

    IUCN IV

    Prefectural Wildlife Protection Area

    4.21 km² overlap

10 more protected areas

  • Hanatate

    IUCN IV

    Prefectural Wildlife Protection Area

    3.22 km² overlap

  • Butsubaru

    IUCN IV

    Prefectural Wildlife Protection Area

    3.13 km² overlap

  • Serikawa

    IUCN IV

    Prefectural Wildlife Protection Area

    2.61 km² overlap

  • Otatsu

    IUCN IV

    Prefectural Wildlife Protection Area

    0.98 km² overlap

  • Takasakiyama

    IUCN IV

    Prefectural Wildlife Protection Area

    0.71 km² overlap

  • Shimotaketa

    IUCN IV

    Prefectural Wildlife Protection Area

    0.35 km² overlap

  • Setonaikai

    IUCN V

    National Park

    0.19 km² overlap

  • Kurodake Mizume To Idenshigen

    IUCN IV

    Rare Population Protected Forest

    0.11 km² overlap

  • Ryozen

    IUCN V

    Prefectural Nature Conservation Area

    0.08 km² overlap

  • Yuyama

    IUCN V

    Prefectural Nature Conservation Area

    0.04 km² overlap

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

Species present

1 013 distinct species · 5 179 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 179 obs · 23 cellules
Obs. / cellule
≥ 1 822
488–1 821
177–487
70–176
< 70

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

Ecological tissue

Sample of 33 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 大分川 : 25 espèces reliées par 46 interactions GloBI sur 4 types (connectance 7.3%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
46
Connectance
0.073
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°

13,2°C

Annual rain

2 188mm

Moisture idx (CMI)

0,54

Runoff

1 326mm/an

PET

980mm

AET

980mm

Mean slope

10,8°

Water table

318cm

Forest

76%

Crops

10%

Urban

12%

Protected

24%

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