Ontologia

HydroBASINS lev08 watershed · #2080484870

Bassin de la Loire

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 4 administrative regions : Cher, Loiret, Nièvre, Yonne

2% lakePfafstetter: 23227079

Sub-basin area

1 982km²

Upstream area

36 607,3km²

Discharge

347,42m³/s

Mean elev.

169m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de la Loire222 km²

▲ Receives from 2 basins

4 dept-equivalent regions (GADM L2)

107 communes (GADM L5)

24 intersecting protected areas

15 more protected areas

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

Species present

8 947 distinct species · 981 080 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

981 080 obs · 89 cellules
Obs. / cellule
≥ 45 457
23 330–45 456
15 177–23 329
7 872–15 176
< 7 872

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

Ecological tissue

Sample of 38 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 la Loire : 29 espèces reliées par 102 interactions GloBI sur 6 types (connectance 14.5%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
38
Interactions affichées
102
Connectance
0.145
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°

10,8°C

Annual rain

691mm

Moisture idx (CMI)

-0,19

Runoff

239mm/an

PET

857mm

AET

579mm

Mean slope

1,3°

Water table

112cm

Forest

14%

Crops

47%

Urban

1%

Protected

0%

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