Ontologia

HydroBASINS lev08 watershed · #1081625430

Bassin de Sundays River

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 4 administrative regions : Amajuba, Thabo Mofutsanyane, Umzinyathi, Uthukela

Pfafstetter: 12552044

Sub-basin area

2 497km²

Upstream area

2 497,1km²

Discharge

5,36m³/s

Mean elev.

1 186m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Tugela River760 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

4 dept-equivalent regions (GADM L2)

2 intersecting protected areas

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

Species present

1 403 distinct species · 22 935 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

22 935 obs · 63 cellules
Obs. / cellule
≥ 9 552
818–9 551
151–817
80–150
< 80

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

Ecological tissue

Sample of 25 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 Sundays River : 23 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 18 interactions GloBI sur 3 types (connectance 6.0%, filtre Serrano α=0.2). 2 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
25
Interactions affichées
18
Connectance
0.060
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°

17,1°C

Annual rain

746mm

Moisture idx (CMI)

-0,50

Runoff

73mm/an

PET

1 500mm

AET

631mm

Mean slope

5,5°

Water table

479cm

Forest

44%

Crops

13%

Urban

3%

Protected

0%

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