HydroBASINS lev08 watershed · #1081170890
Bassin de Akagera
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 across 2 countries : Kyerwa, Nyagatare
Sub-basin area
233,3km²
Upstream area
36 613,9km²
Discharge
227,99m³/s
Mean elev.
1 422m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Nyamaswi1787 km²
- Bassin de Akagera1152 km²
2 dept-equivalent regions (GADM L2)
- Nyagatare124.2 km²53.5% of basin
- 108.1 km²46.5% of basin
12 communes (GADM L5)Available for FRA, RWA
- Gatebe IiNyagatare34.25 km²99% commune
- CyamunyanaNyagatare23.27 km²99% commune
- AkayangeNyagatare21.36 km²13% commune
- Gatebe INyagatare12.33 km²65% commune
- KigaziNyagatare8.85 km²53% commune
- RukindoNyagatare7.56 km²26% commune
- RubiraNyagatare4.91 km²35% commune
- KirebeNyagatare4.24 km²9% commune
- KamateNyagatare3.45 km²25% commune
- RwabiharambaNyagatare2.75 km²13% commune
- Gakagati IiNyagatare0.95 km²5% commune
- Gakagati INyagatare0.30 km²6% commune
1 intersecting protected areas
Ibanda-Kyerwa National Park
IUCN Not ReportedNational Park
88.41 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
69 distinct species · 86 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 9 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 Akagera : 9 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 5 interactions GloBI sur 2 types (connectance 13.9%, filtre Serrano α=0.2).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
20,3°C
Annual rain
917mm
Moisture idx (CMI)
-0,44
Runoff
149mm/an
PET
1 641mm
AET
776mm
Mean slope
8,4°
Water table
558cm
Forest
30%
Crops
18%
Urban
0%
Protected
45%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)