Ontologia

HydroBASINS lev08 watershed · #2080502630

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 2 administrative regions : Cher, Loir-et-Cher

Pfafstetter: 23226070

Sub-basin area

45,9km²

Upstream area

6 791,5km²

Discharge

50,53m³/s

Mean elev.

134m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin du Cher283 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

4 communes (GADM L5)

1 intersecting protected areas

  • ile marie (l\')

    IUCN IV

    Land acquired by a regional conservatory of natural areas

    0.03 km² overlap

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

Species present

3 653 distinct species · 81 859 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

81 859 obs · 5 cellules
Obs. / cellule
≥ 34 334
34 334–34 333
21 213–34 333
18 227–21 212
< 18 227

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

Ecological tissue

Sample of 46 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 : 33 espèces reliées par 134 interactions GloBI sur 5 types (connectance 12.9%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
46
Interactions affichées
134
Connectance
0.130
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°

11,1°C

Annual rain

689mm

Moisture idx (CMI)

-0,21

Runoff

224mm/an

PET

868mm

AET

580mm

Mean slope

1,4°

Water table

190cm

Forest

22%

Crops

33%

Urban

55%

Protected

0%

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