Ontologia

HydroBASINS lev08 watershed · #1081293970

Bassin de Great Ruaha

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 1 administrative regions : Kilosa

Pfafstetter: 11745018

Sub-basin area

707,6km²

Upstream area

707,6km²

Discharge

3,4m³/s

Mean elev.

990m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Great Ruaha680 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

6 intersecting protected areas

  • Msimba

    IUCN Not Assigned

    Village Land Forest Reserve

    216.65 km² overlap

  • Kisanga

    IUCN Not Assigned

    Village Land Forest Reserve

    45.05 km² overlap

  • Ukwiva

    IUCN IV

    Forest Reserve

    27.19 km² overlap

  • Pala Mountains

    IUCN IV

    Forest Reserve

    26.95 km² overlap

  • Ihombwe

    IUCN Not Assigned

    Village Land Forest Reserve

    11.39 km² overlap

  • Udzungwa Mountains National Park

    IUCN II

    National Park

    0.02 km² overlap

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

Species present

292 distinct species · 944 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

944 obs · 11 cellules
Obs. / cellule
≥ 543
157–542
59–156
25–58
< 25

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

Ecological tissue

Sample of 26 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 Great Ruaha : 20 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 25 interactions GloBI sur 2 types (connectance 7.7%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
26
Interactions affichées
25
Connectance
0.077
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°

21,7°C

Annual rain

1 171mm

Moisture idx (CMI)

-0,22

Runoff

159mm/an

PET

1 509mm

AET

895mm

Mean slope

11,5°

Water table

515cm

Forest

59%

Crops

5%

Urban

0%

Protected

8%

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