Ontologia

HydroBASINS lev08 watershed · #4080045690

Bassin de 安房川

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 6 administrative regions : Minamitane, Mishima, Nakatane, Nishinoomote, Satsumasendai +1

Coastal basinPfafstetter: 41306000

Sub-basin area

1 303,6km²

Upstream area

1 303,6km²

Discharge

6,89m³/s

Mean elev.

304m

Administrative coverage

6 dept-equivalent regions (GADM L2)

27 intersecting protected areas

18 more protected areas

  • Yakushima

    IUCN Ia

    Wilderness Area

    11.88 km² overlap

  • Hananoego

    IUCN IV

    Prefectural Wildlife Protection Area

    11.10 km² overlap

  • Kuniwaridake

    IUCN IV

    Prefectural Wildlife Protection Area

    8.58 km² overlap

  • Mageshima

    IUCN IV

    Prefectural Wildlife Protection Area

    8.13 km² overlap

  • Kumano

    IUCN IV

    Prefectural Wildlife Protection Area

    7.41 km² overlap

  • Nishinoomote

    IUCN IV

    Prefectural Wildlife Protection Area

    6.80 km² overlap

  • Miyanouradake

    IUCN IV

    Prefectural Wildlife Protection Area

    5.53 km² overlap

  • Kosugidani

    IUCN IV

    Prefectural Wildlife Protection Area

    4.84 km² overlap

  • Kashima minami

    IUCN IV

    Prefectural Wildlife Protection Area

    4.64 km² overlap

  • Kashima

    IUCN IV

    Prefectural Wildlife Protection Area

    3.80 km² overlap

  • Shiratani

    IUCN IV

    Prefectural Wildlife Protection Area

    3.45 km² overlap

  • Arakawa

    IUCN IV

    Prefectural Wildlife Protection Area

    3.41 km² overlap

  • Miyanoura

    IUCN IV

    Prefectural Wildlife Protection Area

    3.21 km² overlap

  • Yahazudake

    IUCN IV

    Prefectural Wildlife Protection Area

    0.66 km² overlap

  • Segiregawa Xxx

    IUCN IV

    Rare Population Protected Forest

    0.62 km² overlap

  • Yakushima Nagata-hama

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    0.23 km² overlap

  • Kusagakijima

    IUCN IV

    National Wildlife Protection Area

    0.18 km² overlap

  • Tanegashima Xxx To

    IUCN IV

    Rare Population Protected Forest

    0.17 km² overlap

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

Species present

2 867 distinct species · 19 755 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

19 755 obs · 18 cellules
Obs. / cellule
≥ 2 454
2 201–2 453
1 352–2 200
1 091–1 351
< 1 091

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

Ecological tissue

Sample of 12 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 安房川 : 12 espèces reliées par 9 interactions GloBI sur 2 types (connectance 11.5%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
13
Interactions affichées
9
Connectance
0.115
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°

17,6°C

Annual rain

2 967mm

Moisture idx (CMI)

0,66

Runoff

1 525mm/an

PET

977mm

AET

977mm

Mean slope

11,6°

Water table

345cm

Forest

50%

Crops

23%

Urban

0%

Protected

28%

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