Ontologia

HydroBASINS lev08 watershed · #2080517960

Bassin du Cher

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 3 administrative regions : Allier, Cher, Creuse

Pfafstetter: 23226095

Sub-basin area

852km²

Upstream area

2 389,1km²

Discharge

20,39m³/s

Mean elev.

317m

Administrative coverage

Hydrographic chain

Drains into

Receives from 2 basins

3 dept-equivalent regions (GADM L2)

55 communes (GADM L5)

4 intersecting protected areas

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

Species present

3 815 distinct species · 167 759 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

167 759 obs · 26 cellules
Obs. / cellule
≥ 23 489
12 585–23 488
7 741–12 584
6 283–7 740
< 6 283

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

Ecological tissue

Sample of 37 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 du Cher : 30 espèces + 7 bulles famille, 103 interactions GloBI documentées sur 5 types (connectance 15.5%, filtre Serrano α=0.2). Les 7 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
37
Interactions affichées
103
Connectance
0.155
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°

10,5°C

Annual rain

758mm

Moisture idx (CMI)

-0,15

Runoff

258mm/an

PET

890mm

AET

631mm

Mean slope

2,7°

Water table

265cm

Forest

2%

Crops

34%

Urban

5%

Protected

0%

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