Ontologia

HydroBASINS lev08 watershed · #1081653440

Bassin de Leeu

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 : Cape Winelands, West Coast

3% lakePfafstetter: 12604804

Sub-basin area

805,9km²

Upstream area

806km²

Discharge

3,25m³/s

Mean elev.

1 018m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Groot286 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

10 intersecting protected areas

1 more protected areas

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

Species present

1 425 distinct species · 10 391 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

10 391 obs · 22 cellules
Obs. / cellule
≥ 1 948
1 001–1 947
523–1 000
331–522
< 331

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

Ecological tissue

Sample of 44 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 Leeu : 34 espèces reliées par 35 interactions GloBI sur 4 types (connectance 3.7%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
44
Interactions affichées
35
Connectance
0.037
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°

13,8°C

Annual rain

408mm

Moisture idx (CMI)

-0,69

Runoff

122mm/an

PET

1 344mm

AET

348mm

Mean slope

12,2°

Water table

635cm

Forest

4%

Crops

6%

Urban

0%

Protected

55%

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