Ontologia

HydroBASINS lev08 watershed · #1081323950

Bassin de Ruhuji

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 : Njombe Rural, Njombe Urban, Wanging'ombe

Pfafstetter: 11744909

Sub-basin area

920,8km²

Upstream area

920,8km²

Discharge

14,4m³/s

Mean elev.

1 876m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Ruhudji River925 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Hupanga

    IUCN Not Reported

    Forest Reserve

    0.23 km² overlap

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

Species present

295 distinct species · 515 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

515 obs · 14 cellules
Obs. / cellule
≥ 247
53–246
24–52
18–23
< 18

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

Ecological tissue

Sample of 37 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 Ruhuji : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 30 interactions GloBI sur 4 types (connectance 4.5%, filtre Serrano α=0.2). 7 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
37
Interactions affichées
30
Connectance
0.045
Patrimoniales
1
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°

16,4°C

Annual rain

1 235mm

Moisture idx (CMI)

-0,12

Runoff

387mm/an

PET

1 407mm

AET

867mm

Mean slope

4,9°

Water table

233cm

Forest

26%

Crops

7%

Urban

3%

Protected

0%

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