Ontologia

HydroBASINS lev08 watershed · #2080499090

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 : Indre, Indre-et-Loire, Loir-et-Cher

2% lakePfafstetter: 23226010

Sub-basin area

1 115,2km²

Upstream area

13 664,2km²

Discharge

99,19m³/s

Mean elev.

106m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ruisseau du Breuil105 km²

▲ Receives from 2 basins

3 dept-equivalent regions (GADM L2)

91 communes (GADM L5)

21 intersecting protected areas

12 more protected areas

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

Species present

9 124 distinct species · 856 792 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

856 792 obs · 61 cellules
Obs. / cellule
≥ 66 941
26 395–66 940
17 704–26 394
10 309–17 703
< 10 309

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 du Cher : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 141 interactions GloBI sur 5 types (connectance 22.4%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
36
Interactions affichées
141
Connectance
0.224
Patrimoniales
1
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°

11,2°C

Annual rain

679mm

Moisture idx (CMI)

-0,21

Runoff

212mm/an

PET

864mm

AET

572mm

Mean slope

1,5°

Water table

126cm

Forest

5%

Crops

54%

Urban

7%

Protected

1%

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