Ontologia

HydroBASINS lev08 watershed · #1081239860

Bassin de Umba

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 : Korogwe, Lushoto, Mkinga

Pfafstetter: 11733804

Sub-basin area

534,7km²

Upstream area

534,8km²

Discharge

3,91m³/s

Mean elev.

428m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Umba344 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

3 dept-equivalent regions (GADM L2)

6 intersecting protected areas

  • Bombo West

    IUCN VI

    Forest Reserve

    25.32 km² overlap

  • Nilo

    IUCN Ib

    Nature Forest Reserve

    10.59 km² overlap

  • Bombo East I

    IUCN VI

    Forest Reserve

    4.64 km² overlap

  • Mgambo

    IUCN VI

    Forest Reserve

    2.91 km² overlap

  • Bombo East II

    IUCN VI

    Forest Reserve

    2.27 km² overlap

  • Mtai

    IUCN IV

    Forest Reserve

    1.58 km² overlap

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

Species present

153 distinct species · 500 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

500 obs · 9 cellules
Obs. / cellule
≥ 175
175–174
141–174
3–140
< 3

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

Ecological tissue

Sample of 24 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 Umba : 19 espèces reliées par 26 interactions GloBI sur 2 types (connectance 9.4%, filtre Serrano α=0.2). 5 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
24
Interactions affichées
26
Connectance
0.094
Patrimoniales
0
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°

23,6°C

Annual rain

965mm

Moisture idx (CMI)

-0,40

Runoff

230mm/an

PET

1 621mm

AET

810mm

Mean slope

4,9°

Water table

356cm

Forest

65%

Crops

7%

Urban

0%

Protected

7%

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