HydroBASINS lev08 watershed · #1081179640
Bassin de Sand 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 across 2 countries : Narok South, Narok West, Ngorongoro, Serengeti
Sub-basin area
1 835,2km²
Upstream area
1 835,2km²
Discharge
4,14m³/s
Mean elev.
1 938m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 0 basins
Source / headwater (no upstream basin)
4 dept-equivalent regions (GADM L2)
- 1371.4 km²75.1% of basin
- 199.9 km²10.9% of basin
- 180.8 km²9.9% of basin
- NgorongoroArusha · Tanzania74.8 km²4.1% of basin
4 intersecting protected areas
Masai Mara
IUCN IINational Reserve
340.68 km² overlap
Serengeti National Park
IUCN Not ApplicableWorld Heritage Site (natural or mixed)
209.14 km² overlap
Serengeti National Park
IUCN IINational Park
200.56 km² overlap
Loliondo GCA
IUCN Not ReportedGame controlled area
82.02 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
1 415 distinct species · 32 072 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 13 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 Sand River : 12 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 20 interactions GloBI sur 3 types (connectance 25.6%, filtre Serrano α=0.2). 1 bulle taxonomique (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°
17,4°C
Annual rain
914mm
Moisture idx (CMI)
-0,41
Runoff
100mm/an
PET
1 562mm
AET
774mm
Mean slope
4,6°
Water table
400cm
Forest
4%
Crops
7%
Urban
0%
Protected
38%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)