Ontologia

HydroBASINS lev08 watershed · #1081624030

Bassin de Vetrivier

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 : Lejweleputswa

35% lakePfafstetter: 12796065

Sub-basin area

467,6km²

Upstream area

5 022,9km²

Discharge

2,09m³/s

Mean elev.

1 396m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Vetrivier344 km²

▲ Receives from 2 basins

1 dept-equivalent regions (GADM L2)

3 intersecting protected areas

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

Species present

354 distinct species · 4 447 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

4 447 obs · 11 cellules
Obs. / cellule
≥ 3 297
580–3 296
165–579
52–164
< 52

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

Ecological tissue

Sample of 22 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 Vetrivier : 18 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 20 interactions GloBI sur 2 types (connectance 8.7%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
22
Interactions affichées
20
Connectance
0.087
Patrimoniales
2
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°

16,1°C

Annual rain

563mm

Moisture idx (CMI)

-0,63

Runoff

17mm/an

PET

1 544mm

AET

476mm

Mean slope

1,4°

Water table

520cm

Forest

0%

Crops

39%

Urban

2%

Protected

6%

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