Ontologia

HydroBASINS lev08 watershed · #4080075420

Bassin · #4080075420

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 1 administrative regions : Semboku

Endorheic 522% lakePfafstetter: 41301360

Sub-basin area

48,7km²

Upstream area

48,9km²

Discharge

1,66m³/s

Mean elev.

296m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de 雄物川32 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

145 distinct species · 209 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

209 obs · 1 cellules
Obs. / cellule
≥ 209
209–208
209–208
209–208
< 209

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

Ecological tissue

Sample of 35 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 · #4080075420 : 30 espèces reliées par 43 interactions GloBI sur 4 types (connectance 6.8%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
43
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°

9,4°C

Annual rain

1 580mm

Moisture idx (CMI)

0,46

Runoff

1 073mm/an

PET

856mm

AET

831mm

Mean slope

6,4°

Water table

356cm

Forest

52%

Crops

4%

Urban

0%

Protected

97%

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