HydroBASINS lev08 watershed · #1080014290
Bassin de Kariega 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 1 administrative regions : Cacadu
Sub-basin area
667,6km²
Upstream area
667,6km²
Discharge
1,41m³/s
Mean elev.
350m
Administrative coverage
1 dept-equivalent regions (GADM L2)
- 667.3 km²100.0% of basin
6 intersecting protected areas
Indalo Protected Environment
IUCN Not ReportedProtected Environment
97.83 km² overlap
Thomas Baines Nature Reserve
IUCN Not ReportedNature Reserve
10.47 km² overlap
Merville Private Nature Reserve
IUCN Not ReportedNature Reserve
2.90 km² overlap
Buffalo Kloof Protected Environment
IUCN Not ReportedProtected Environment
1.49 km² overlap
Cycad Nature Reserve
IUCN Not ReportedNature Reserve
0.44 km² overlap
Joan Muirhead Nature Reserve
IUCN Not ReportedNature Reserve
0.01 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
2 775 distinct species · 46 844 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 28 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 Kariega River : 25 espèces reliées par 25 interactions GloBI sur 3 types (connectance 6.6%, filtre Serrano α=0.2). 3 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°
17,5°C
Annual rain
615mm
Moisture idx (CMI)
-0,51
Runoff
72mm/an
PET
1 260mm
AET
523mm
Mean slope
5,9°
Water table
639cm
Forest
80%
Crops
24%
Urban
0%
Protected
2%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)