Ontologia

HydroBASINS lev08 watershed · #1081583810

Bassin de Groot-Nylrivier

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 : Waterberg

Pfafstetter: 12492099

Sub-basin area

836,3km²

Upstream area

836,3km²

Discharge

0,39m³/s

Mean elev.

1 276m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Mogalakwena River576 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

5 intersecting protected areas

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

Species present

2 905 distinct species · 146 602 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

146 602 obs · 22 cellules
Obs. / cellule
≥ 58 222
11 723–58 221
4 529–11 722
1 710–4 528
< 1 710

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

Ecological tissue

Sample of 19 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 Groot-Nylrivier : 18 espèces reliées par 13 interactions GloBI sur 3 types (connectance 7.6%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
19
Interactions affichées
13
Connectance
0.076
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°

18,0°C

Annual rain

644mm

Moisture idx (CMI)

-0,60

Runoff

14mm/an

PET

1 619mm

AET

545mm

Mean slope

3,5°

Water table

646cm

Forest

25%

Crops

24%

Urban

2%

Protected

7%

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