HydroBASINS lev08 watershed · #1081627910
Bassin de Modder
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 3 administrative regions : Lejweleputswa, Mangaung, Xhariep
Sub-basin area
1 985km²
Upstream area
7 016,9km²
Discharge
5,2m³/s
Mean elev.
1 309m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Doringspruit938 km²
- Bassin de Modder392 km²
3 dept-equivalent regions (GADM L2)
- 1068.3 km²53.9% of basin
- Mangaung913.0 km²46.1% of basin
- 1.0 km²0.0% of basin
8 intersecting protected areas
Soetdoring Nature Reserve
IUCN Not ReportedNature Reserve
68.03 km² overlap
Rooikraal Game Ranch
IUCN Not ReportedNature Reserve
25.06 km² overlap
Nielsview Nature Reserve
IUCN Not ReportedNature Reserve
19.68 km² overlap
Highlands Reserve
IUCN Not ReportedNature Reserve
18.55 km² overlap
Phakwe Restcamp
IUCN Not ReportedNature Reserve
8.02 km² overlap
Steenbokkraal Nature Reserve
IUCN Not ReportedNature Reserve
7.98 km² overlap
Auch Macoy Game Reserve
IUCN Not ReportedNature Reserve
7.78 km² overlap
Klipfontein Reserve
IUCN Not ReportedNature Reserve
4.58 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 819 distinct species · 131 052 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 16 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 Modder : 14 espèces reliées par 12 interactions GloBI sur 3 types (connectance 10.0%, filtre Serrano α=0.2). 2 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°
16,5°C
Annual rain
509mm
Moisture idx (CMI)
-0,68
Runoff
29mm/an
PET
1 584mm
AET
430mm
Mean slope
0,6°
Water table
329cm
Forest
0%
Crops
22%
Urban
1%
Protected
3%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)