Ontologia

HydroBASINS lev08 watershed · #1081338860

Bassin · #1081338860

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 : Namtumbo, Songea Rural, Songea Urban

Pfafstetter: 12228280

Sub-basin area

1 460,5km²

Upstream area

1 460,5km²

Discharge

13,74m³/s

Mean elev.

982m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #10813376401117 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

3 intersecting protected areas

  • Maposeni

    IUCN Not Reported

    Forest Reserve

    31.97 km² overlap

  • Songea Fuel

    IUCN Not Reported

    Forest Reserve

    6.48 km² overlap

  • Matogoro East

    IUCN Not Reported

    Forest Reserve

    0.61 km² overlap

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

Species present

214 distinct species · 577 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

577 obs · 19 cellules
Obs. / cellule
≥ 204
124–203
27–123
7–26
< 7

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

Ecological tissue

Sample of 22 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 · #1081338860 : 18 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 16 interactions GloBI sur 3 types (connectance 6.9%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
22
Interactions affichées
16
Connectance
0.069
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°

21,6°C

Annual rain

1 207mm

Moisture idx (CMI)

-0,21

Runoff

305mm/an

PET

1 530mm

AET

886mm

Mean slope

3,4°

Water table

164cm

Forest

65%

Crops

8%

Urban

1%

Protected

0%

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