Ontologia

HydroBASINS lev08 watershed · #1080767970

Bassin de Nazinon

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 : Nahouri

2% lakePfafstetter: 14448012

Sub-basin area

321km²

Upstream area

321km²

Discharge

1,14m³/s

Mean elev.

278m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Nazinon1680 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Nazinon

    IUCN Not Reported

    Ecological Corridor

    0.01 km² overlap

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

Species present

258 distinct species · 962 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

962 obs · 10 cellules
Obs. / cellule
≥ 673
673–672
59–672
16–58
< 16

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

Ecological tissue

Sample of 32 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 Nazinon : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) + 3 bulles famille, 25 interactions GloBI documentées sur 3 types (connectance 5.0%, filtre Serrano α=0.2). Les 3 bulles regroupent des espèces visuellement absorbées par famille (≥3 espèces visibles).

Espèces affichées
32
Interactions affichées
25
Connectance
0.050
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°

27,7°C

Annual rain

879mm

Moisture idx (CMI)

-0,54

Runoff

115mm/an

PET

1 914mm

AET

743mm

Mean slope

1,1°

Water table

213cm

Forest

0%

Crops

18%

Urban

2%

Protected

0%

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