Ontologia

HydroBASINS lev08 watershed · #1081656170

Bassin de Voëlrivier

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 : Cacadu, Chris Hani

Pfafstetter: 12558020

Sub-basin area

1 948,8km²

Upstream area

1 948,8km²

Discharge

1,26m³/s

Mean elev.

794m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sundays River32 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

963 distinct species · 5 729 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

5 729 obs · 53 cellules
Obs. / cellule
≥ 480
363–479
126–362
51–125
< 51

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

Ecological tissue

Sample of 40 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 Voëlrivier : 34 espèces reliées par 30 interactions GloBI sur 4 types (connectance 3.8%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
40
Interactions affichées
30
Connectance
0.038
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°

16,9°C

Annual rain

374mm

Moisture idx (CMI)

-0,74

Runoff

21mm/an

PET

1 485mm

AET

317mm

Mean slope

6,7°

Water table

774cm

Forest

22%

Crops

5%

Urban

0%

Protected

0%

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