Ontologia

HydroBASINS lev08 watershed · #1081299950

Bassin de Rufiji

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 : Kisarawe, Rufiji

Pfafstetter: 11741002

Sub-basin area

2 625,5km²

Upstream area

2 625,5km²

Discharge

12,8m³/s

Mean elev.

112m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Rufiji179 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

5 intersecting protected areas

  • Ruhoi River

    IUCN Not Reported

    Forest Reserve

    393.23 km² overlap

  • Nyumburuni

    IUCN Not Reported

    Forest Reserve

    45.49 km² overlap

  • Ngulakula

    IUCN Not Reported

    Forest Reserve

    22.71 km² overlap

  • Nyerere National Park

    IUCN Not Reported

    National Park

    0.00 km² overlap

  • Rufiji-Mafia-Kilwa

    IUCN Not Reported

    Wetland of International Importance (Ramsar Site)

    0.00 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

204 distinct species · 406 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

406 obs · 24 cellules
Obs. / cellule
≥ 71
40–70
21–39
10–20
< 10

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 33 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).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Rufiji : 25 espèces dont 2 patrimoniales (LR IUCN CR/EN/VU) reliées par 36 interactions GloBI sur 4 types (connectance 6.8%, filtre Serrano α=0.2). 8 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
33
Interactions affichées
36
Connectance
0.068
Patrimoniales
2
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

25,9°C

Annual rain

1 044mm

Moisture idx (CMI)

-0,31

Runoff

140mm/an

PET

1 517mm

AET

867mm

Mean slope

1,6°

Water table

141cm

Forest

90%

Crops

4%

Urban

1%

Protected

18%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)