HydroBASINS lev08 watershed · #1080013960
Bassin de Kwelera 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 2 administrative regions : Amathole, Buffalo City
Sub-basin area
973,3km²
Upstream area
973,3km²
Discharge
0,46m³/s
Mean elev.
257m
Administrative coverage
2 dept-equivalent regions (GADM L2)
- 913.8 km²93.9% of basin
- Buffalo City44.6 km²4.6% of basin
7 intersecting protected areas
Amathole Marine Protected Area
IUCN Not ReportedMarine Protected Area
8.10 km² overlap
Kwelera Nature Reserve
IUCN Not ReportedForest Nature Reserve
1.94 km² overlap
Cape Henderson Nature Reserve
IUCN Not ReportedForest Nature Reserve
1.45 km² overlap
Entle Protected Environment
IUCN Not ReportedProtected Environment
1.09 km² overlap
Dunneden Private Nature Reserve
IUCN Not ReportedNature Reserve
0.38 km² overlap
Long Beach Private Nature Reserve
IUCN Not ReportedNature Reserve
0.09 km² overlap
Kwelera Island Local Nature Reserve
IUCN Not ReportedNature Reserve
0.07 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 846 distinct species · 66 783 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 30 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).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Kwelera River : 27 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 3 types (connectance 6.5%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
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
831mm
Moisture idx (CMI)
-0,27
Runoff
220mm/an
PET
1 142mm
AET
705mm
Mean slope
5,8°
Water table
384cm
Forest
62%
Crops
5%
Urban
0%
Protected
1%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)