Ontologia

HydroBASINS lev08 watershed · #4080039800

Bassin de 佐々川

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 27 administrative regions : Arita, Emukae, Genkai, Hasami, Higashisonogi +22

Coastal basinPfafstetter: 41305717

Sub-basin area

3 495,5km²

Upstream area

3 495,5km²

Discharge

7,47m³/s

Mean elev.

137m

Administrative coverage

27 dept-equivalent regions (GADM L2)

19 more

30 intersecting protected areas

21 more protected areas

  • Hokusho

    IUCN V

    Prefectural Natural Park

    34.96 km² overlap

  • Tara dake (saga)

    IUCN V

    Prefectural Natural Park

    32.66 km² overlap

  • Nishisonogi hanto

    IUCN V

    Prefectural Natural Park

    30.01 km² overlap

  • Omura wan

    IUCN V

    Prefectural Natural Park

    20.63 km² overlap

  • Shimabara hanto

    IUCN V

    Prefectural Natural Park

    18.83 km² overlap

  • Mayuyama

    IUCN IV

    Prefectural Wildlife Protection Area

    16.38 km² overlap

  • Kurokamiyama

    IUCN IV

    Prefectural Wildlife Protection Area

    16.34 km² overlap

  • Kurokami zan

    IUCN V

    Prefectural Natural Park

    13.80 km² overlap

  • Genkai

    IUCN IV

    Prefectural Wildlife Protection Area

    11.70 km² overlap

  • Taradake

    IUCN IV

    Prefectural Wildlife Protection Area

    11.11 km² overlap

  • Honmyogawa

    IUCN IV

    Prefectural Wildlife Protection Area

    9.51 km² overlap

  • Yasumandake

    IUCN IV

    Prefectural Wildlife Protection Area

    9.28 km² overlap

  • Shiminno mori

    IUCN IV

    Prefectural Wildlife Protection Area

    8.53 km² overlap

  • Kunimiyama

    IUCN IV

    Prefectural Wildlife Protection Area

    6.88 km² overlap

  • Isahaya

    IUCN IV

    Prefectural Wildlife Protection Area

    6.02 km² overlap

  • Karatsu

    IUCN IV

    Prefectural Wildlife Protection Area

    5.81 km² overlap

  • Hokazan

    IUCN IV

    Prefectural Wildlife Protection Area

    5.28 km² overlap

  • Fugendake

    IUCN IV

    Biocenosis Protected Forest

    4.53 km² overlap

  • Madarajima

    IUCN IV

    Prefectural Wildlife Protection Area

    4.23 km² overlap

  • Suwanoike

    IUCN IV

    Prefectural Wildlife Protection Area

    4.00 km² overlap

  • Mansukeyama

    IUCN IV

    Prefectural Wildlife Protection Area

    3.95 km² overlap

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

Species present

3 321 distinct species · 28 661 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

28 661 obs · 114 cellules
Obs. / cellule
≥ 2 500
482–2 499
171–481
111–170
< 111

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 佐々川 : 26 espèces dont 4 patrimoniales (LR IUCN CR/EN/VU) reliées par 62 interactions GloBI sur 2 types (connectance 11.1%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
34
Interactions affichées
62
Connectance
0.111
Patrimoniales
4
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°

15,8°C

Annual rain

2 033mm

Moisture idx (CMI)

0,51

Runoff

1 255mm/an

PET

992mm

AET

992mm

Mean slope

8,6°

Water table

289cm

Forest

45%

Crops

15%

Urban

23%

Protected

22%

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